[INFO] cloning repository https://github.com/webern/rs_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/webern/rs_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebern%2Frs_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebern%2Frs_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1d8d67014f7b2bb78519c3a71c142f73e5f22d5
[INFO] testing webern/rs_book against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwebern%2Frs_book" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/webern/rs_book
[INFO] finished tweaking git repo https://github.com/webern/rs_book
[INFO] tweaked toml for git repo https://github.com/webern/rs_book written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/webern/rs_book on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/webern/rs_book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 302bf1647312e419ad7dc5f1c01c663c6f01ae2af26494d44e4098747c732de2
[INFO] running `Command { std: "docker" "start" "-a" "302bf1647312e419ad7dc5f1c01c663c6f01ae2af26494d44e4098747c732de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "302bf1647312e419ad7dc5f1c01c663c6f01ae2af26494d44e4098747c732de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302bf1647312e419ad7dc5f1c01c663c6f01ae2af26494d44e4098747c732de2", kill_on_drop: false }`
[INFO] [stdout] 302bf1647312e419ad7dc5f1c01c663c6f01ae2af26494d44e4098747c732de2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fb2f495c5575e953f353fc2f3298828f7c007eb7ea28c7e8a949763ff9a6f70
[INFO] running `Command { std: "docker" "start" "-a" "6fb2f495c5575e953f353fc2f3298828f7c007eb7ea28c7e8a949763ff9a6f70", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling portable-atomic v1.5.1
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling winnow v0.5.19
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling clap_builder v4.4.8
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling notify v4.0.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indicatif v0.17.7
[INFO] [stderr]    Compiling tempfile v3.8.1
[INFO] [stderr]    Compiling chapter-12 v0.1.0 (/opt/rustwide/workdir/chapter-12)
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling eyre v0.6.9
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]    Compiling c_multiple_crates v0.1.0 (/opt/rustwide/workdir/chapter-7/c_multiple_crates)
[INFO] [stderr]    Compiling d_custom_crate_files v0.1.0 (/opt/rustwide/workdir/chapter-7/d_custom_crate_files)
[INFO] [stderr]    Compiling chapter-10-traits-lib v0.1.0 (/opt/rustwide/workdir/chapter-10-traits-lib)
[INFO] [stderr]    Compiling chapter-10b-traits v0.1.0 (/opt/rustwide/workdir/chapter-10b-traits)
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> chapter-12/src/bin/listing_16.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> chapter-12/src/bin/listing_16.rs:54:32
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-3 v0.1.0 (/opt/rustwide/workdir/chapter-3)
[INFO] [stderr]    Compiling chapter-11 v0.1.0 (/opt/rustwide/workdir/chapter-11)
[INFO] [stderr]    Compiling chapter-13 v0.1.0 (/opt/rustwide/workdir/chapter-13)
[INFO] [stderr]    Compiling chapter-8 v0.1.0 (/opt/rustwide/workdir/chapter-8)
[INFO] [stderr]    Compiling chapter-15 v0.1.0 (/opt/rustwide/workdir/chapter-15)
[INFO] [stderr]    Compiling chapter-16 v0.1.0 (/opt/rustwide/workdir/chapter-16)
[INFO] [stderr]    Compiling chapter-14 v0.1.0 (/opt/rustwide/workdir/chapter-14)
[INFO] [stderr]    Compiling chapter-18 v0.1.0 (/opt/rustwide/workdir/chapter-18)
[INFO] [stderr]    Compiling chapter-17 v0.1.0 (/opt/rustwide/workdir/chapter-17)
[INFO] [stdout] warning: value assigned to `setting_value` is never read
[INFO] [stdout]    --> chapter-18/src/main.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |             setting_value = new_setting_value;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `x:` in this pattern is redundant
[INFO] [stdout]   --> chapter-18/src/main.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Point { x: x, y: y } => {
[INFO] [stdout]    |                 ^^^^ help: use shorthand field pattern: `x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `y:` in this pattern is redundant
[INFO] [stdout]   --> chapter-18/src/main.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Point { x: x, y: y } => {
[INFO] [stdout]    |                       ^^^^ help: use shorthand field pattern: `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-10c-lifetimes v0.1.0 (/opt/rustwide/workdir/chapter-10c-lifetimes)
[INFO] [stderr]    Compiling chapter-5 v0.1.0 (/opt/rustwide/workdir/chapter-5)
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:87:7
[INFO] [stdout]    |
[INFO] [stdout] 87 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]    --> chapter-10c-lifetimes/src/main.rs:134:7
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[cfg(does_not_compile)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]    --> chapter-10c-lifetimes/src/main.rs:148:7
[INFO] [stdout]     |
[INFO] [stdout] 148 | #[cfg(does_not_compile)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-4 v0.1.0 (/opt/rustwide/workdir/chapter-4)
[INFO] [stderr]    Compiling b_standard_library v0.1.0 (/opt/rustwide/workdir/chapter-7/b_normal_library)
[INFO] [stderr]    Compiling e_pub_vs_private v0.1.0 (/opt/rustwide/workdir/chapter-7/e_pub_vs_private)
[INFO] [stderr]    Compiling chapter-10a v0.1.0 (/opt/rustwide/workdir/chapter-10a-generics)
[INFO] [stderr]    Compiling chapter-6 v0.1.0 (/opt/rustwide/workdir/chapter-6)
[INFO] [stderr]    Compiling a_standard_binary v0.1.0 (/opt/rustwide/workdir/chapter-7/a_normal_binary)
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling clap v4.4.8
[INFO] [stderr]    Compiling snafu v0.7.5
[INFO] [stderr]    Compiling chapter-9 v0.1.0 (/opt/rustwide/workdir/chapter-9)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:136:57
[INFO] [stdout]     |
[INFO] [stdout] 136 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 136 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 209 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_spanned v0.6.4
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-16/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-6/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-15/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-8/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-13/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-7/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-10a-generics/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "6fb2f495c5575e953f353fc2f3298828f7c007eb7ea28c7e8a949763ff9a6f70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb2f495c5575e953f353fc2f3298828f7c007eb7ea28c7e8a949763ff9a6f70", kill_on_drop: false }`
[INFO] [stdout] 6fb2f495c5575e953f353fc2f3298828f7c007eb7ea28c7e8a949763ff9a6f70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08a406583679593ab457969341031f0c9b155423e8b0301065222eff15878952
[INFO] running `Command { std: "docker" "start" "-a" "08a406583679593ab457969341031f0c9b155423e8b0301065222eff15878952", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling chapter-9 v0.1.0 (/opt/rustwide/workdir/chapter-9)
[INFO] [stderr]    Compiling d_custom_crate_files v0.1.0 (/opt/rustwide/workdir/chapter-7/d_custom_crate_files)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:136:57
[INFO] [stdout]     |
[INFO] [stdout] 136 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 136 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 209 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-10b-traits v0.1.0 (/opt/rustwide/workdir/chapter-10b-traits)
[INFO] [stderr]    Compiling c_multiple_crates v0.1.0 (/opt/rustwide/workdir/chapter-7/c_multiple_crates)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:136:57
[INFO] [stdout]     |
[INFO] [stdout] 136 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 136 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> chapter-9/src/lib.rs:209:57
[INFO] [stdout]     |
[INFO] [stdout] 209 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout]     |                                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 209 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stdout] 209 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-12 v0.1.0 (/opt/rustwide/workdir/chapter-12)
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]   --> chapter-12/src/bin/listing_16.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `contents`
[INFO] [stdout]   --> chapter-12/src/bin/listing_16.rs:54:32
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-11 v0.1.0 (/opt/rustwide/workdir/chapter-11)
[INFO] [stderr]    Compiling chapter-3 v0.1.0 (/opt/rustwide/workdir/chapter-3)
[INFO] [stderr]    Compiling chapter-16 v0.1.0 (/opt/rustwide/workdir/chapter-16)
[INFO] [stderr]    Compiling chapter-18 v0.1.0 (/opt/rustwide/workdir/chapter-18)
[INFO] [stderr]    Compiling chapter-14 v0.1.0 (/opt/rustwide/workdir/chapter-14)
[INFO] [stderr]    Compiling chapter-8 v0.1.0 (/opt/rustwide/workdir/chapter-8)
[INFO] [stderr]    Compiling chapter-17 v0.1.0 (/opt/rustwide/workdir/chapter-17)
[INFO] [stdout] warning: value assigned to `setting_value` is never read
[INFO] [stdout]    --> chapter-18/src/main.rs:128:13
[INFO] [stdout]     |
[INFO] [stdout] 128 |             setting_value = new_setting_value;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-15 v0.1.0 (/opt/rustwide/workdir/chapter-15)
[INFO] [stdout] warning: the `x:` in this pattern is redundant
[INFO] [stdout]   --> chapter-18/src/main.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Point { x: x, y: y } => {
[INFO] [stdout]    |                 ^^^^ help: use shorthand field pattern: `x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `y:` in this pattern is redundant
[INFO] [stdout]   --> chapter-18/src/main.rs:62:23
[INFO] [stdout]    |
[INFO] [stdout] 62 |         Point { x: x, y: y } => {
[INFO] [stdout]    |                       ^^^^ help: use shorthand field pattern: `y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chapter-13 v0.1.0 (/opt/rustwide/workdir/chapter-13)
[INFO] [stderr]    Compiling chapter-10a v0.1.0 (/opt/rustwide/workdir/chapter-10a-generics)
[INFO] [stderr]    Compiling chapter-4 v0.1.0 (/opt/rustwide/workdir/chapter-4)
[INFO] [stderr]    Compiling e_pub_vs_private v0.1.0 (/opt/rustwide/workdir/chapter-7/e_pub_vs_private)
[INFO] [stderr]    Compiling chapter-10-traits-lib v0.1.0 (/opt/rustwide/workdir/chapter-10-traits-lib)
[INFO] [stderr]    Compiling chapter-6 v0.1.0 (/opt/rustwide/workdir/chapter-6)
[INFO] [stderr]    Compiling b_standard_library v0.1.0 (/opt/rustwide/workdir/chapter-7/b_normal_library)
[INFO] [stderr]    Compiling chapter-5 v0.1.0 (/opt/rustwide/workdir/chapter-5)
[INFO] [stderr]    Compiling a_standard_binary v0.1.0 (/opt/rustwide/workdir/chapter-7/a_normal_binary)
[INFO] [stderr]    Compiling chapter-10c-lifetimes v0.1.0 (/opt/rustwide/workdir/chapter-10c-lifetimes)
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]   --> chapter-10c-lifetimes/src/main.rs:87:7
[INFO] [stdout]    |
[INFO] [stdout] 87 | #[cfg(does_not_compile)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]    --> chapter-10c-lifetimes/src/main.rs:134:7
[INFO] [stdout]     |
[INFO] [stdout] 134 | #[cfg(does_not_compile)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stdout]    --> chapter-10c-lifetimes/src/main.rs:148:7
[INFO] [stdout]     |
[INFO] [stdout] 148 | #[cfg(does_not_compile)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling bstr v1.8.0
[INFO] [stderr]    Compiling predicates v3.0.4
[INFO] [stderr]    Compiling assert_cmd v2.0.12
[INFO] [stderr]    Compiling rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)
[INFO] [stderr]    Compiling rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-15/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-10a-generics/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-6/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-13/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-7/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-16/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-8/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-15/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-13/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-7/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-10a-generics/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-8/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-16/rustlings/src/exercise.rs:110:20
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> chapter-6/rustlings/src/exercise.rs:111:20
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stdout]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 36.00s
[INFO] running `Command { std: "docker" "inspect" "08a406583679593ab457969341031f0c9b155423e8b0301065222eff15878952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08a406583679593ab457969341031f0c9b155423e8b0301065222eff15878952", kill_on_drop: false }`
[INFO] [stdout] 08a406583679593ab457969341031f0c9b155423e8b0301065222eff15878952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 89c78da27d9eae47721fc9f37d959222bc299ff4974f9ede787bea49f79ab7ca
[INFO] running `Command { std: "docker" "start" "-a" "89c78da27d9eae47721fc9f37d959222bc299ff4974f9ede787bea49f79ab7ca", kill_on_drop: false }`
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-10a-generics v5.6.1 (/opt/rustwide/workdir/chapter-10a-generics/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-13 v5.6.1 (/opt/rustwide/workdir/chapter-13/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-15 v5.6.1 (/opt/rustwide/workdir/chapter-15/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-17 v5.6.1 (/opt/rustwide/workdir/chapter-16/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-6 v5.6.1 (/opt/rustwide/workdir/chapter-6/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: output filename collision at /opt/rustwide/target/debug/rustlings.dwp
[INFO] [stderr]   |
[INFO] [stderr]   = note: the bin target `rustlings` in package `rustlings-chapter-8 v5.6.1 (/opt/rustwide/workdir/chapter-8/rustlings)` has the same output filename as the bin target `rustlings` in package `rustlings-chapter-7 v5.6.1 (/opt/rustwide/workdir/chapter-7/rustlings)`
[INFO] [stderr]   = note: this may become a hard error in the future; see <https://github.com/rust-lang/cargo/issues/6313>
[INFO] [stderr]   = help: consider changing their names to be unique or compiling them separately
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> chapter-9/src/lib.rs:136:57
[INFO] [stderr]     |
[INFO] [stderr] 136 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stderr]     |                                                         ^         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 136 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stderr] 136 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> chapter-9/src/lib.rs:209:57
[INFO] [stderr]     |
[INFO] [stderr] 209 |             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stderr]     |                                                         ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 209 -             self.source.as_ref().map(|e| e.as_ref() as &(dyn Error))
[INFO] [stderr] 209 +             self.source.as_ref().map(|e| e.as_ref() as &dyn Error)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `chapter-9` (lib) generated 2 warnings (run `cargo fix --lib -p chapter-9` to apply 2 suggestions)
[INFO] [stderr] warning: `chapter-9` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-16/rustlings/src/exercise.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-7/rustlings/src/exercise.rs:111:20
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-13/rustlings/src/exercise.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustlings-chapter-17` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-17 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rustlings-chapter-7` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-7 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rustlings-chapter-13` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-13 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-10a-generics/rustlings/src/exercise.rs:111:20
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-6/rustlings/src/exercise.rs:111:20
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-8/rustlings/src/exercise.rs:111:20
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 111 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> chapter-15/rustlings/src/exercise.rs:110:20
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise, ExerciseOutput> {
[INFO] [stderr]     |                    ^^^^^            ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn compile(&self) -> Result<CompiledExercise<'_>, ExerciseOutput> {
[INFO] [stderr]     |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustlings-chapter-10a-generics` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-10a-generics --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rustlings-chapter-6` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-6 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rustlings-chapter-8` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-8 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `rustlings-chapter-15` (bin "rustlings" test) generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings-chapter-15 --tests` to apply 1 suggestion)
[INFO] [stderr] warning: unused variable: `query`
[INFO] [stderr]   --> chapter-12/src/bin/listing_16.rs:54:19
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stderr]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `contents`
[INFO] [stderr]   --> chapter-12/src/bin/listing_16.rs:54:32
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn search<'a>(query: &str, contents: &'a str) -> Vec<&'a str> {
[INFO] [stderr]    |                                ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: `chapter-12` (bin "listing_16" test) generated 2 warnings (run `cargo fix --bin "listing_16" -p chapter-12 --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `rustlings-chapter-7` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-10a-generics` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-8` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-13` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-6` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-17` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustlings-chapter-15` (bin "rustlings") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: value assigned to `setting_value` is never read
[INFO] [stderr]    --> chapter-18/src/main.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |             setting_value = new_setting_value;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `x:` in this pattern is redundant
[INFO] [stderr]   --> chapter-18/src/main.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Point { x: x, y: y } => {
[INFO] [stderr]    |                 ^^^^ help: use shorthand field pattern: `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `y:` in this pattern is redundant
[INFO] [stderr]   --> chapter-18/src/main.rs:62:23
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Point { x: x, y: y } => {
[INFO] [stderr]    |                       ^^^^ help: use shorthand field pattern: `y`
[INFO] [stderr] 
[INFO] [stderr] warning: `chapter-18` (bin "chapter-18" test) generated 3 warnings (run `cargo fix --bin "chapter-18" -p chapter-18 --tests` to apply 2 suggestions)
[INFO] [stderr] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stderr]   --> chapter-10c-lifetimes/src/main.rs:13:7
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[cfg(does_not_compile)]
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stderr]   --> chapter-10c-lifetimes/src/main.rs:29:7
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[cfg(does_not_compile)]
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stderr]   --> chapter-10c-lifetimes/src/main.rs:87:7
[INFO] [stderr]    |
[INFO] [stderr] 87 | #[cfg(does_not_compile)]
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stderr]    --> chapter-10c-lifetimes/src/main.rs:134:7
[INFO] [stderr]     |
[INFO] [stderr] 134 | #[cfg(does_not_compile)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition name: `does_not_compile`
[INFO] [stderr]    --> chapter-10c-lifetimes/src/main.rs:148:7
[INFO] [stderr]     |
[INFO] [stderr] 148 | #[cfg(does_not_compile)]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider using a Cargo feature instead
[INFO] [stderr]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]              [lints.rust]
[INFO] [stderr]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(does_not_compile)'] }
[INFO] [stderr]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(does_not_compile)");` to the top of the `build.rs`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: `chapter-10c-lifetimes` (bin "chapter-10c-lifetimes" test) generated 5 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/a_standard_binary-e36ab905c1de7477)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/b_standard_library-d62250dbf56beb03)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/c_multiple_crates-a7b4af5af1215a9b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/goodbye_world.rs (/opt/rustwide/target/debug/deps/goodbye_world-9092b3de59db48a2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/hello_world.rs (/opt/rustwide/target/debug/deps/hello_world-affc685770f4b0a6)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chapter_10_traits_lib-30b6c07e8bef216b)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chapter_10a-1d6ed1b70eb94971)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chapter_10b_traits-4367af42de054172)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chapter_10c_lifetimes-558c70659f9034ab)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chapter_11-356c1cdff4bcc7fc)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test compile_guarded::a_test ... ok
[INFO] [stdout] test integ_discussion::unit_test ... ok
[INFO] [stdout] test rant_about_loops::i_hate_this ... ok
[INFO] [stdout] test rant_about_loops::trim_test_1_leading_space ... ok
[INFO] [stdout] test output::example ... ok
[INFO] [stdout] test rant_about_loops::trim_test_2_trailing_space ... ok
[INFO] [stdout] test rant_about_loops::trim_test_3_leading_and_trailing ... ok
[INFO] [stdout] test isolated::good_test ... ok
[INFO] [stdout] test isolated::bad_test_2 ... ok
[INFO] [stdout] test isolated::bad_test_1 ... ok
[INFO] [stdout] test should_panic_tests::reliable_test - should panic ... FAILED
[INFO] [stdout] test be_assertive::a_some_assertions ... FAILED
[INFO] [stdout] test should_panic_tests::unreliable_test - should panic ... ok
[INFO] [stderr] error: test failed, to rerun pass `-p chapter-11 --lib`
[INFO] [stdout] test tests_returning_results::returns_a_result ... FAILED
[INFO] [stdout] test everybody_panic::panic_is_ok - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- should_panic_tests::reliable_test stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'should_panic_tests::reliable_test' (38) panicked at chapter-11/src/lib.rs:225:22:
[INFO] [stdout] attempt to subtract with overflow
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64574adca3d2 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64574adca3d2 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64574adca3d2 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64574adca3d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64574adda4bf - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x64574adda4bf - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x64574ad95f63 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64574ad95f63 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x64574ada25d2 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x64574ada7bff - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x64574ada7a91 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x64574ad6023e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x64574ad6023e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64574ada820f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x64574ada820f - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x64574ada8036 - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:700:13
[INFO] [stdout]   16:     0x64574ada2709 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x64574ad8990d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x64574ade1e50 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64574ade1a37 - core::panicking::panic_const::panic_const_sub_overflow::h8c8d9d6bf8527407
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:180:17
[INFO] [stdout]   20:     0x64574ad3442a - chapter_11::should_panic_tests::gimme_a_value_greater_than_10::h6b539dc6a43b7a22
[INFO] [stdout]                                at /opt/rustwide/workdir/chapter-11/src/lib.rs:225:22
[INFO] [stdout]   21:     0x64574ad34378 - chapter_11::should_panic_tests::reliable_test::hbcd1c11783a3fdca
[INFO] [stdout]                                at /opt/rustwide/workdir/chapter-11/src/lib.rs:246:17
[INFO] [stdout]   22:     0x64574ad34397 - chapter_11::should_panic_tests::reliable_test::{{closure}}::h93135003de03c535
[INFO] [stdout]                                at /opt/rustwide/workdir/chapter-11/src/lib.rs:245:23
[INFO] [stdout]   23:     0x64574ad35496 - core::ops::function::FnOnce::call_once::h896453a2a64b1e29
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64574ad6003b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64574ad6003b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x64574ad7409d - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x64574ad7409d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x64574ad7409d - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x64574ad7409d - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x64574ad7409d - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x64574ad7409d - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x64574ad7409d - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x64574ad4d5e4 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x64574ad4d5e4 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x64574ad50e3a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x64574ad50e3a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x64574ad50e3a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x64574ad50e3a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x64574ad50e3a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x64574ad50e3a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x64574ad50e3a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x64574ad9db0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x64574ad9db0f - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7276c969eaa4 - <unknown>
[INFO] [stdout]   45:     0x7276c972ba64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: "attempt to subtract with overflow"
[INFO] [stdout]  expected substring: "too high"
[INFO] [stdout] ---- be_assertive::a_some_assertions stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'be_assertive::a_some_assertions' (26) panicked at chapter-11/src/lib.rs:216:9:
[INFO] [stdout] assertion `left == right` failed: 'double(3)' should return '6'
[INFO] [stdout]   left: 7
[INFO] [stdout]  right: 6
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x64574adca3d2 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x64574adca3d2 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x64574adca3d2 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x64574adca3d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x64574adda4bf - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x64574adda4bf - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x64574ad95f63 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x64574ad95f63 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x64574ada25d2 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x64574ada7bff - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x64574ada7a91 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x64574ad6023e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x64574ad6023e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x64574ada820f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x64574ada820f - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x64574ada806a - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x64574ada2709 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x64574ad8990d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x64574ade1e50 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64574ade1ce3 - core::panicking::assert_failed_inner::h865658b89c1b891d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:439:23
[INFO] [stdout]   20:     0x64574adb774c - core::panicking::assert_failed::h43f4f60428f8360e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:399:5
[INFO] [stdout]   21:     0x64574ad33b38 - chapter_11::be_assertive::a_some_assertions::h243d2fe227efcbb9
[INFO] [stdout]                                at /opt/rustwide/workdir/chapter-11/src/lib.rs:216:9
[INFO] [stdout]   22:     0x64574ad33b57 - chapter_11::be_assertive::a_some_assertions::{{closure}}::hfd4c26ed4d7251a4
[INFO] [stdout]                                at /opt/rustwide/workdir/chapter-11/src/lib.rs:206:27
[INFO] [stdout]   23:     0x64574ad35596 - core::ops::function::FnOnce::call_once::hb92f560622ddb4ea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x64574ad6003b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x64574ad6003b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x64574ad7409d - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x64574ad7409d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x64574ad7409d - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x64574ad7409d - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x64574ad7409d - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x64574ad7409d - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x64574ad7409d - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x64574ad4d5e4 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x64574ad4d5e4 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x64574ad50e3a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x64574ad50e3a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x64574ad50e3a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x64574ad50e3a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x64574ad50e3a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x64574ad50e3a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x64574ad50e3a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x64574ad9db0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x64574ad9db0f - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x7276c969eaa4 - <unknown>
[INFO] [stdout]   45:     0x7276c972ba64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests_returning_results::returns_a_result stdout ----
[INFO] [stdout] Error: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/anyhow-1.0.75/src/backtrace.rs:27:14
[INFO] [stdout]    1: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/result.rs:2184:27
[INFO] [stdout]    2: chapter_11::tests_returning_results::returns_a_result
[INFO] [stdout]              at ./src/lib.rs:261:17
[INFO] [stdout]    3: chapter_11::tests_returning_results::returns_a_result::{{closure}}
[INFO] [stdout]              at ./src/lib.rs:260:30
[INFO] [stdout]    4: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    5: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]    6: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]    7: test::run_test_in_process::{{closure}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]    8: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]    9: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   10: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   11: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   12: test::run_test_in_process
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   13: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   14: test::run_test::{{closure}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   15: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   16: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   17: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   18: std::panicking::catch_unwind::do_call
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   19: std::panicking::catch_unwind
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   20: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   21: std::thread::Builder::spawn_unchecked_::{{closure}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   22: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   24: std::sys::thread::unix::Thread::new::thread_start
[INFO] [stdout]              at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   25: <unknown>
[INFO] [stdout]   26: clone
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     be_assertive::a_some_assertions
[INFO] [stdout]     should_panic_tests::reliable_test
[INFO] [stdout]     tests_returning_results::returns_a_result
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 12 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "89c78da27d9eae47721fc9f37d959222bc299ff4974f9ede787bea49f79ab7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c78da27d9eae47721fc9f37d959222bc299ff4974f9ede787bea49f79ab7ca", kill_on_drop: false }`
[INFO] [stdout] 89c78da27d9eae47721fc9f37d959222bc299ff4974f9ede787bea49f79ab7ca
