[INFO] cloning repository https://github.com/statianzo/imposters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/statianzo/imposters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatianzo%2Fimposters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatianzo%2Fimposters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 344a5027ba57464a424c1906376445b6e208cb57
[INFO] testing statianzo/imposters against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatianzo%2Fimposters" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/statianzo/imposters
[INFO] finished tweaking git repo https://github.com/statianzo/imposters
[INFO] tweaked toml for git repo https://github.com/statianzo/imposters written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/statianzo/imposters 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/statianzo/imposters 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing statianzo/imposters against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstatianzo%2Fimposters" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/statianzo/imposters
[INFO] finished tweaking git repo https://github.com/statianzo/imposters
[INFO] tweaked toml for git repo https://github.com/statianzo/imposters written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/statianzo/imposters 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/statianzo/imposters 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.4
[INFO] [stderr]   Downloaded atty v0.2.10
[INFO] [stderr]   Downloaded unreachable v1.0.0
[INFO] [stderr]   Downloaded utf8-ranges v1.0.0
[INFO] [stderr]   Downloaded log v0.4.3
[INFO] [stderr]   Downloaded redox_syscall v0.1.40
[INFO] [stderr]   Downloaded memchr v2.0.1
[INFO] [stderr]   Downloaded quickcheck v0.6.2
[INFO] [stderr]   Downloaded ucd-util v0.1.1
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded humantime v1.1.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.5
[INFO] [stderr]   Downloaded thread_local v0.3.5
[INFO] [stderr]   Downloaded quick-error v1.2.2
[INFO] [stderr]   Downloaded lazy_static v1.0.1
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded env_logger v0.5.10
[INFO] [stderr]   Downloaded rand v0.5.3
[INFO] [stderr]   Downloaded bitflags v1.0.3
[INFO] [stderr]   Downloaded rand_core v0.2.1
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded regex v1.0.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.1
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded winapi v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fab9c90496cf6a09c0df5e5ecae99ee1527a289591601b94a06aa767132ff099
[INFO] running `Command { std: "docker" "start" "-a" "fab9c90496cf6a09c0df5e5ecae99ee1527a289591601b94a06aa767132ff099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fab9c90496cf6a09c0df5e5ecae99ee1527a289591601b94a06aa767132ff099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab9c90496cf6a09c0df5e5ecae99ee1527a289591601b94a06aa767132ff099", kill_on_drop: false }`
[INFO] [stdout] fab9c90496cf6a09c0df5e5ecae99ee1527a289591601b94a06aa767132ff099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 875b5e4e06ccb262268d2abf2a8e0c1f0d01d9664a4656c99a36b6ff7d3c00e8
[INFO] running `Command { std: "docker" "start" "-a" "875b5e4e06ccb262268d2abf2a8e0c1f0d01d9664a4656c99a36b6ff7d3c00e8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling imposters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Mp4File` is never constructed
[INFO] [stdout]  --> src/ch10_patterns/adapter.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Mp4File {}
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `track_words` is never used
[INFO] [stdout]  --> src/ch10_patterns/adapter.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Mp4File {
[INFO] [stdout]   | ------------ method in this implementation
[INFO] [stdout] 8 |     fn track_words(&self) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OggFile` is never constructed
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct OggFile {}
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `retrieve_lyrics` is never used
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl OggFile {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 15 |     fn retrieve_lyrics(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CaptionedAudio` is never used
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait CaptionedAudio {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch06_datastructures/heap.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn iter(&self) -> Iter<T> {
[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] 61 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "875b5e4e06ccb262268d2abf2a8e0c1f0d01d9664a4656c99a36b6ff7d3c00e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "875b5e4e06ccb262268d2abf2a8e0c1f0d01d9664a4656c99a36b6ff7d3c00e8", kill_on_drop: false }`
[INFO] [stdout] 875b5e4e06ccb262268d2abf2a8e0c1f0d01d9664a4656c99a36b6ff7d3c00e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5043c0847f279356fd71a90df2d30a55d7b7747ff49fa803539a14e02fffd4d1
[INFO] running `Command { std: "docker" "start" "-a" "5043c0847f279356fd71a90df2d30a55d7b7747ff49fa803539a14e02fffd4d1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stdout] warning: struct `Mp4File` is never constructed
[INFO] [stdout]  --> src/ch10_patterns/adapter.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Mp4File {}
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `track_words` is never used
[INFO] [stdout]  --> src/ch10_patterns/adapter.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Mp4File {
[INFO] [stdout]   | ------------ method in this implementation
[INFO] [stdout] 8 |     fn track_words(&self) -> String {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OggFile` is never constructed
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct OggFile {}
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `retrieve_lyrics` is never used
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl OggFile {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 15 |     fn retrieve_lyrics(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CaptionedAudio` is never used
[INFO] [stdout]   --> src/ch10_patterns/adapter.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | trait CaptionedAudio {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch06_datastructures/heap.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn iter(&self) -> Iter<T> {
[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] 61 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling rand v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.6.5
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling imposters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ch06_datastructures/heap.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn iter(&self) -> Iter<T> {
[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] 61 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> src/ch08_adv_algs/fib.rs:78:26
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let mut iter = a.into_iter();
[INFO] [stdout]    |                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 78 -         let mut iter = a.into_iter();
[INFO] [stdout] 78 +         let mut iter = a.iter();
[INFO] [stdout]    |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 78 -         let mut iter = a.into_iter();
[INFO] [stdout] 78 +         let mut iter = IntoIterator::into_iter(a);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.45s
[INFO] running `Command { std: "docker" "inspect" "5043c0847f279356fd71a90df2d30a55d7b7747ff49fa803539a14e02fffd4d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5043c0847f279356fd71a90df2d30a55d7b7747ff49fa803539a14e02fffd4d1", kill_on_drop: false }`
[INFO] [stdout] 5043c0847f279356fd71a90df2d30a55d7b7747ff49fa803539a14e02fffd4d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3bc774841898e1745a369b8a18a64b65c4fbd08232c533ad98dd51732cd2ffda
[INFO] running `Command { std: "docker" "start" "-a" "3bc774841898e1745a369b8a18a64b65c4fbd08232c533ad98dd51732cd2ffda", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr] warning: struct `Mp4File` is never constructed
[INFO] [stderr]  --> src/ch10_patterns/adapter.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Mp4File {}
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `track_words` is never used
[INFO] [stderr]  --> src/ch10_patterns/adapter.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl Mp4File {
[INFO] [stderr]   | ------------ method in this implementation
[INFO] [stderr] 8 |     fn track_words(&self) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `OggFile` is never constructed
[INFO] [stderr]   --> src/ch10_patterns/adapter.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct OggFile {}
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `retrieve_lyrics` is never used
[INFO] [stderr]   --> src/ch10_patterns/adapter.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl OggFile {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] 15 |     fn retrieve_lyrics(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 74 tests
[INFO] [stderr] warning: trait `CaptionedAudio` is never used
[INFO] [stdout] test ch04_machinery::turing::test_build ... ok
[INFO] [stderr]   --> src/ch10_patterns/adapter.rs:20:7
[INFO] [stdout] test ch04_machinery::fsm::test_fsm ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch05_bigo::search::test::test_binary_hit ... ok
[INFO] [stderr] 20 | trait CaptionedAudio {
[INFO] [stdout] test ch05_bigo::search::test::test_binary_miss ... ok
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] test ch05_bigo::search::test::test_brute_force_hit ... ok
[INFO] [stderr] 
[INFO] [stdout] test ch05_bigo::search::test::test_brute_force_miss ... ok
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] test ch06_datastructures::graph::test::test_add_edge ... ok
[INFO] [stderr]   --> src/ch06_datastructures/heap.rs:61:17
[INFO] [stdout] test ch06_datastructures::graph::test::test_it_works ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch05_bigo::vec_basic::bench_vec_push ... ok
[INFO] [stderr] 61 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout] test ch06_datastructures::heap::test::test_from_iter ... ok
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] test ch06_datastructures::heap::test::test_iter ... ok
[INFO] [stderr]    |                 |
[INFO] [stdout] test ch06_datastructures::heap::test::test_new ... ok
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stdout] test ch06_datastructures::graph::test::test_weight_from ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch06_datastructures::heap::test::test_push_pop ... ok
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] test ch06_datastructures::heap::test::test_priority ... ok
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] test ch06_datastructures::heap::test::test_push ... ok
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stdout] test ch06_datastructures::linked::test::test_from_iter ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch06_datastructures::linked::test::test_can_construct ... ok
[INFO] [stderr] 61 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout] test ch06_datastructures::linked::test::test_iterate ... ok
[INFO] [stderr]    |                                +++
[INFO] [stdout] test ch06_datastructures::linked_im::test::test_from_iter ... ok
[INFO] [stderr] 
[INFO] [stdout] test ch06_datastructures::linked_im::test::test_append ... ok
[INFO] [stderr] warning: `imposters` (lib) generated 6 warnings (run `cargo fix --lib -p imposters` to apply 1 suggestion)
[INFO] [stdout] test ch06_datastructures::linked_im::test::test_append_str ... ok
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout] test ch06_datastructures::linked_im::test::test_head ... ok
[INFO] [stderr]   --> src/ch08_adv_algs/fib.rs:78:26
[INFO] [stdout] test ch06_datastructures::linked_im::test::test_tail ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch06_datastructures::queue::test::test_enq_after_deq ... ok
[INFO] [stderr] 78 |         let mut iter = a.into_iter();
[INFO] [stdout] test ch06_datastructures::queue::test::test_deqeue ... ok
[INFO] [stderr]    |                          ^^^^^^^^^
[INFO] [stdout] test ch06_datastructures::queue::test::test_enqueue_dequeue ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch06_datastructures::queue::test::test_enqueue_len ... ok
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stdout] test ch06_datastructures::queue::test::test_new_queue ... ok
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] test ch07_algorithms::bench::bench_builtin_sort ... ok
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] test ch07_algorithms::bench::bench_builtin_unstable_sort ... ok
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout] test ch05_bigo::vec_basic::bench_vec_insert ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch06_datastructures::graph::test::test_weight_from_other ... ok
[INFO] [stderr] 78 -         let mut iter = a.into_iter();
[INFO] [stdout] test ch07_algorithms::bench::bench_heap_sort ... ok
[INFO] [stderr] 78 +         let mut iter = a.iter();
[INFO] [stdout] test ch07_algorithms::bench::bench_merge_sort ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch05_bigo::vec_basic::bench_vec_access ... ok
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout] test ch07_algorithms::bubble::test::test_small_sort ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch07_algorithms::heap::test::test_dud ... ok
[INFO] [stderr] 78 -         let mut iter = a.into_iter();
[INFO] [stdout] test ch07_algorithms::heap::test::test_small_sort ... ok
[INFO] [stderr] 78 +         let mut iter = IntoIterator::into_iter(a);
[INFO] [stdout] test ch07_algorithms::heap::test::test_any_sort ... ok
[INFO] [stderr]    |
[INFO] [stdout] test ch07_algorithms::insertion::test::test_small_sort ... ok
[INFO] [stderr] 
[INFO] [stdout] test ch07_algorithms::insertion::test::test_any_sort ... ok
[INFO] [stderr] warning: `imposters` (lib test) generated 2 warnings (1 duplicate) (run `cargo fix --lib -p imposters --tests` to apply 1 suggestion)
[INFO] [stdout] test ch07_algorithms::merge::test::test_small_sort ... ok
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] test ch07_algorithms::bubble::test::test_any_sort ... ok
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/imposters-f2d270a1a8e570db)
[INFO] [stdout] test ch07_algorithms::selection::test::test_small_sort ... ok
[INFO] [stdout] test ch08_adv_algs::bench::bench_fibonacci_nth ... ok
[INFO] [stdout] test ch08_adv_algs::fib::test::test_it ... ok
[INFO] [stdout] test ch08_adv_algs::fib::test::test_iterates ... ok
[INFO] [stdout] test ch08_adv_algs::fib::test::test_iterator ... ok
[INFO] [stdout] test ch08_adv_algs::fib::test::test_next ... ok
[INFO] [stdout] test ch08_adv_algs::fib::test::test_reset ... ok
[INFO] [stdout] test ch09_compiler::lex::test::it_parses_anything_else ... ok
[INFO] [stdout] test ch09_compiler::lex::test::it_parses_def ... ok
[INFO] [stdout] test ch09_compiler::lex::test::it_parses_extern ... ok
[INFO] [stdout] test ch09_compiler::lex::test::it_parses_multiple ... ok
[INFO] [stdout] test ch09_compiler::lex::test::it_parses_number ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_it_parses_def ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_it_parses_extern ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_it_parses_identifier ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_it_parses_multiple ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_it_parses_number ... ok
[INFO] [stdout] test ch09_compiler::lexer::test::test_new ... ok
[INFO] [stdout] test ch10_patterns::adapter::test::test_it_works ... ok
[INFO] [stdout] test ch10_patterns::builder::test::test_it_builds ... ok
[INFO] [stdout] test ch10_patterns::factory::test::test_ctor ... ok
[INFO] [stdout] test ch10_patterns::factory::test::test_defaults ... ok
[INFO] [stdout] test ch10_patterns::singleton::test::test_it_works ... ok
[INFO] [stdout] test ch07_algorithms::bench::bench_bubble_sort ... ok
[INFO] [stderr]    Doc-tests imposters
[INFO] [stdout] test ch07_algorithms::selection::test::test_any_sort ... ok
[INFO] [stdout] test ch07_algorithms::bench::bench_selection_sort ... ok
[INFO] [stdout] test ch05_bigo::search::test::bench_brute_force ... ok
[INFO] [stdout] test ch07_algorithms::bench::bench_insertion_sort ... ok
[INFO] [stdout] test ch07_algorithms::merge::test::test_any_sort ... ok
[INFO] [stdout] test ch05_bigo::search::test::bench_binary_search ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 74 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[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] running `Command { std: "docker" "inspect" "3bc774841898e1745a369b8a18a64b65c4fbd08232c533ad98dd51732cd2ffda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc774841898e1745a369b8a18a64b65c4fbd08232c533ad98dd51732cd2ffda", kill_on_drop: false }`
[INFO] [stdout] 3bc774841898e1745a369b8a18a64b65c4fbd08232c533ad98dd51732cd2ffda