[INFO] cloning repository https://github.com/jiqiang/rustbyexample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jiqiang/rustbyexample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiqiang%2Frustbyexample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiqiang%2Frustbyexample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98538804fe40f9c9945fd7f8f27ff8f718c2a973
[INFO] testing jiqiang/rustbyexample against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiqiang%2Frustbyexample" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiqiang/rustbyexample on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jiqiang/rustbyexample
[INFO] finished tweaking git repo https://github.com/jiqiang/rustbyexample
[INFO] tweaked toml for git repo https://github.com/jiqiang/rustbyexample written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/jiqiang/rustbyexample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92b8172e47d676375a8cc07b850da5eef380ffe95b99fe40579713031ea0f411
[INFO] running `Command { std: "docker" "start" "-a" "92b8172e47d676375a8cc07b850da5eef380ffe95b99fe40579713031ea0f411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92b8172e47d676375a8cc07b850da5eef380ffe95b99fe40579713031ea0f411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b8172e47d676375a8cc07b850da5eef380ffe95b99fe40579713031ea0f411", kill_on_drop: false }`
[INFO] [stdout] 92b8172e47d676375a8cc07b850da5eef380ffe95b99fe40579713031ea0f411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7220749b02abc6ac9c14184072d2c7b66e0a072a140f63743ac67aa6206d6bd6
[INFO] running `Command { std: "docker" "start" "-a" "7220749b02abc6ac9c14184072d2c7b66e0a072a140f63743ac67aa6206d6bd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbyexample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 - type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout] 113 + type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/bin/generic.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     y: U,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/bin/generic.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/bin/structures.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/bin/structures.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |         n @ 1...12 => println!("{} is between 1 and 12", n),
[INFO] [stdout]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         n @ 13...19 => println!("{} is between 13 and 19", n),
[INFO] [stdout]   |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "7220749b02abc6ac9c14184072d2c7b66e0a072a140f63743ac67aa6206d6bd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7220749b02abc6ac9c14184072d2c7b66e0a072a140f63743ac67aa6206d6bd6", kill_on_drop: false }`
[INFO] [stdout] 7220749b02abc6ac9c14184072d2c7b66e0a072a140f63743ac67aa6206d6bd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bef3a185babde7956e46ec6bcbab838c2be2d46ca9d3324188ac664b9cf0bad
[INFO] running `Command { std: "docker" "start" "-a" "7bef3a185babde7956e46ec6bcbab838c2be2d46ca9d3324188ac664b9cf0bad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbyexample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 - type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout] 113 + type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |         n @ 1...12 => println!("{} is between 1 and 12", n),
[INFO] [stdout]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         n @ 13...19 => println!("{} is between 13 and 19", n),
[INFO] [stdout]   |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/bin/generic.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     y: U,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/bin/generic.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/bin/structures.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/bin/structures.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]  --> src/bin/structures.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     name: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> src/bin/structures.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/bin/structures.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:113:16
[INFO] [stdout]     |
[INFO] [stdout] 113 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 - type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout] 113 + type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/bin/generic.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     y: U,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/bin/generic.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |         n @ 1...12 => println!("{} is between 1 and 12", n),
[INFO] [stdout]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]  --> src/bin/match.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |         n @ 13...19 => println!("{} is between 13 and 19", n),
[INFO] [stdout]   |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustbyexample-4ca504f4a37b2de8)
[INFO] [stderr]   Executable unittests src/bin/arrays_and_slices.rs (/opt/rustwide/target/debug/deps/arrays_and_slices-f3badd5da8a70be7)
[INFO] [stderr]   Executable unittests src/bin/binary_search.rs (/opt/rustwide/target/debug/deps/binary_search-c548fa19acc8cad7)
[INFO] [stderr]   Executable unittests src/bin/blog.rs (/opt/rustwide/target/debug/deps/blog-59c1d3f874c1a6ec)
[INFO] [stderr]   Executable unittests src/bin/boxes.rs (/opt/rustwide/target/debug/deps/boxes-1c1993b69c4f3f95)
[INFO] [stderr]   Executable unittests src/bin/closures.rs (/opt/rustwide/target/debug/deps/closures-3a2ef7c3e78c32ad)
[INFO] [stderr]   Executable unittests src/bin/closures_input_functions.rs (/opt/rustwide/target/debug/deps/closures_input_functions-25d3980717c5d0bb)
[INFO] [stderr]   Executable unittests src/bin/closures_iterator_any.rs (/opt/rustwide/target/debug/deps/closures_iterator_any-ce4bae5265221453)
[INFO] [stderr]   Executable unittests src/bin/closures_type_anonymity.rs (/opt/rustwide/target/debug/deps/closures_type_anonymity-011162e20197cb9a)
[INFO] [stderr]   Executable unittests src/bin/collections.rs (/opt/rustwide/target/debug/deps/collections-f83b7f796187c045)
[INFO] [stderr]   Executable unittests src/bin/constants.rs (/opt/rustwide/target/debug/deps/constants-a58824c27c73154d)
[INFO] [stderr]   Executable unittests src/bin/custom_types.rs (/opt/rustwide/target/debug/deps/custom_types-f498b5fa50eac51b)
[INFO] [stderr]   Executable unittests src/bin/declare_first.rs (/opt/rustwide/target/debug/deps/declare_first-c3ed4f6219ae1180)
[INFO] [stderr]   Executable unittests src/bin/enum.rs (/opt/rustwide/target/debug/deps/enum-e27a0e57e0c675f4)
[INFO] [stderr]   Executable unittests src/bin/enum_c_like.rs (/opt/rustwide/target/debug/deps/enum_c_like-1622a177b3bd6e3c)
[INFO] [stderr]   Executable unittests src/bin/enum_linked_list.rs (/opt/rustwide/target/debug/deps/enum_linked_list-ad583370585df9f4)
[INFO] [stderr]   Executable unittests src/bin/enum_use.rs (/opt/rustwide/target/debug/deps/enum_use-8a07001917ad771b)
[INFO] [stderr]   Executable unittests src/bin/fearless_concurrency.rs (/opt/rustwide/target/debug/deps/fearless_concurrency-2cf0a7dabcca27ca)
[INFO] [stderr]   Executable unittests src/bin/formatted_print.rs (/opt/rustwide/target/debug/deps/formatted_print-d09d067a17233181)
[INFO] [stderr]   Executable unittests src/bin/generic.rs (/opt/rustwide/target/debug/deps/generic-54d504559cce370b)
[INFO] [stderr]   Executable unittests src/bin/gui.rs (/opt/rustwide/target/debug/deps/gui-379c2b76b0c43ce5)
[INFO] [stderr]   Executable unittests src/bin/iteration.rs (/opt/rustwide/target/debug/deps/iteration-4b36a7d8345f759a)
[INFO] [stderr]   Executable unittests src/bin/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-1d19d7d33fb87451)
[INFO] [stderr]   Executable unittests src/bin/match.rs (/opt/rustwide/target/debug/deps/match-d0074e9f7d3e162e)
[INFO] [stderr]   Executable unittests src/bin/minigrep.rs (/opt/rustwide/target/debug/deps/minigrep-c96b63b0771f202b)
[INFO] [stderr]   Executable unittests src/bin/mutability.rs (/opt/rustwide/target/debug/deps/mutability-8df3795eca359b38)
[INFO] [stderr]   Executable unittests src/bin/primitives.rs (/opt/rustwide/target/debug/deps/primitives-33aad0810c6b8e5e)
[INFO] [stderr]   Executable unittests src/bin/reference.rs (/opt/rustwide/target/debug/deps/reference-2fa3ec14e727189c)
[INFO] [stderr]   Executable unittests src/bin/reference_counting.rs (/opt/rustwide/target/debug/deps/reference_counting-bb3ff37855676cfb)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rustbyexample-7791ad2930482dab)
[INFO] [stderr]   Executable unittests src/bin/scope_and_shadowing.rs (/opt/rustwide/target/debug/deps/scope_and_shadowing-67e7ad44a58a7be4)
[INFO] [stderr]   Executable unittests src/bin/structures.rs (/opt/rustwide/target/debug/deps/structures-f80926e2e025e55e)
[INFO] [stderr]   Executable unittests src/bin/traits.rs (/opt/rustwide/target/debug/deps/traits-40c1663a3211551d)
[INFO] [stderr]   Executable unittests src/bin/type_casting.rs (/opt/rustwide/target/debug/deps/type_casting-92374e9dba9342be)
[INFO] [stderr]   Executable unittests src/bin/variable_bindings.rs (/opt/rustwide/target/debug/deps/variable_bindings-1e00bf1f98606ced)
[INFO] [stderr]   Executable unittests src/bin/web_server.rs (/opt/rustwide/target/debug/deps/web_server-3cb10db65e2973b8)
[INFO] [stderr]   Executable tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-27369c787b296cb8)
[INFO] running `Command { std: "docker" "inspect" "7bef3a185babde7956e46ec6bcbab838c2be2d46ca9d3324188ac664b9cf0bad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bef3a185babde7956e46ec6bcbab838c2be2d46ca9d3324188ac664b9cf0bad", kill_on_drop: false }`
[INFO] [stdout] 7bef3a185babde7956e46ec6bcbab838c2be2d46ca9d3324188ac664b9cf0bad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d9f83591166bb55298a31de701ed31c0992e7f00dddeba5daadeabce7c4c395b
[INFO] running `Command { std: "docker" "start" "-a" "d9f83591166bb55298a31de701ed31c0992e7f00dddeba5daadeabce7c4c395b", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:113:16
[INFO] [stderr]     |
[INFO] [stderr] 113 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 113 - type Job = Box<FnBox + Send + 'static>;
[INFO] [stderr] 113 + type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rustbyexample` (lib) generated 1 warning
[INFO] [stderr] warning: `rustbyexample` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]  --> src/bin/structures.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     name: &'a str,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/bin/structures.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `age`
[INFO] [stderr]  --> src/bin/structures.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     age: u8,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/bin/structures.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/bin/generic.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     y: U,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Point` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/bin/generic.rs:27:10
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]  --> src/bin/match.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |         n @ 1...12 => println!("{} is between 1 and 12", n),
[INFO] [stderr]   |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]  --> src/bin/match.rs:9:15
[INFO] [stderr]   |
[INFO] [stderr] 9 |         n @ 13...19 => println!("{} is between 13 and 19", n),
[INFO] [stderr]   |               ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `rustbyexample` (bin "structures" test) generated 2 warnings
[INFO] [stderr] warning: `rustbyexample` (bin "structures") generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `rustbyexample` (bin "generic" test) generated 1 warning
[INFO] [stderr] warning: `rustbyexample` (bin "generic") generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `rustbyexample` (bin "match") generated 2 warnings
[INFO] [stderr] warning: `rustbyexample` (bin "match" test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustbyexample-4ca504f4a37b2de8)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::it_adds_two ... ok
[INFO] [stdout] test tests::it_must_work ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test tests::smaller_can_hold_larger ... ok
[INFO] [stdout] test tests::it_should_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/arrays_and_slices.rs (/opt/rustwide/target/debug/deps/arrays_and_slices-f3badd5da8a70be7)
[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/binary_search.rs (/opt/rustwide/target/debug/deps/binary_search-c548fa19acc8cad7)
[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/blog.rs (/opt/rustwide/target/debug/deps/blog-59c1d3f874c1a6ec)
[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/boxes.rs (/opt/rustwide/target/debug/deps/boxes-1c1993b69c4f3f95)
[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/closures.rs (/opt/rustwide/target/debug/deps/closures-3a2ef7c3e78c32ad)
[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/closures_input_functions.rs (/opt/rustwide/target/debug/deps/closures_input_functions-25d3980717c5d0bb)
[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/closures_iterator_any.rs (/opt/rustwide/target/debug/deps/closures_iterator_any-ce4bae5265221453)
[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/closures_type_anonymity.rs (/opt/rustwide/target/debug/deps/closures_type_anonymity-011162e20197cb9a)
[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/collections.rs (/opt/rustwide/target/debug/deps/collections-f83b7f796187c045)
[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/constants.rs (/opt/rustwide/target/debug/deps/constants-a58824c27c73154d)
[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/custom_types.rs (/opt/rustwide/target/debug/deps/custom_types-f498b5fa50eac51b)
[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/declare_first.rs (/opt/rustwide/target/debug/deps/declare_first-c3ed4f6219ae1180)
[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/enum.rs (/opt/rustwide/target/debug/deps/enum-e27a0e57e0c675f4)
[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/enum_c_like.rs (/opt/rustwide/target/debug/deps/enum_c_like-1622a177b3bd6e3c)
[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/enum_linked_list.rs (/opt/rustwide/target/debug/deps/enum_linked_list-ad583370585df9f4)
[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/enum_use.rs (/opt/rustwide/target/debug/deps/enum_use-8a07001917ad771b)
[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/fearless_concurrency.rs (/opt/rustwide/target/debug/deps/fearless_concurrency-2cf0a7dabcca27ca)
[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/formatted_print.rs (/opt/rustwide/target/debug/deps/formatted_print-d09d067a17233181)
[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/generic.rs (/opt/rustwide/target/debug/deps/generic-54d504559cce370b)
[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/gui.rs (/opt/rustwide/target/debug/deps/gui-379c2b76b0c43ce5)
[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/iteration.rs (/opt/rustwide/target/debug/deps/iteration-4b36a7d8345f759a)
[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/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-1d19d7d33fb87451)
[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/match.rs (/opt/rustwide/target/debug/deps/match-d0074e9f7d3e162e)
[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/minigrep.rs (/opt/rustwide/target/debug/deps/minigrep-c96b63b0771f202b)
[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/mutability.rs (/opt/rustwide/target/debug/deps/mutability-8df3795eca359b38)
[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/primitives.rs (/opt/rustwide/target/debug/deps/primitives-33aad0810c6b8e5e)
[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/reference.rs (/opt/rustwide/target/debug/deps/reference-2fa3ec14e727189c)
[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/reference_counting.rs (/opt/rustwide/target/debug/deps/reference_counting-bb3ff37855676cfb)
[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/rustbyexample-7791ad2930482dab)
[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/scope_and_shadowing.rs (/opt/rustwide/target/debug/deps/scope_and_shadowing-67e7ad44a58a7be4)
[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/structures.rs (/opt/rustwide/target/debug/deps/structures-f80926e2e025e55e)
[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/traits.rs (/opt/rustwide/target/debug/deps/traits-40c1663a3211551d)
[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/type_casting.rs (/opt/rustwide/target/debug/deps/type_casting-92374e9dba9342be)
[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/variable_bindings.rs (/opt/rustwide/target/debug/deps/variable_bindings-1e00bf1f98606ced)
[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/web_server.rs (/opt/rustwide/target/debug/deps/web_server-3cb10db65e2973b8)
[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 tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-27369c787b296cb8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_adds_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustbyexample
[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] running `Command { std: "docker" "inspect" "d9f83591166bb55298a31de701ed31c0992e7f00dddeba5daadeabce7c4c395b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9f83591166bb55298a31de701ed31c0992e7f00dddeba5daadeabce7c4c395b", kill_on_drop: false }`
[INFO] [stdout] d9f83591166bb55298a31de701ed31c0992e7f00dddeba5daadeabce7c4c395b