[INFO] cloning repository https://github.com/euclidr/something-about-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/euclidr/something-about-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 607f5796c1cc0c96203a3950ddb2835a6fce24a3
[INFO] testing euclidr/something-about-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuclidr%2Fsomething-about-rust" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euclidr/something-about-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/euclidr/something-about-rust
[INFO] finished tweaking git repo https://github.com/euclidr/something-about-rust
[INFO] tweaked toml for git repo https://github.com/euclidr/something-about-rust written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/euclidr/something-about-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-104/source/Cargo.toml: unused manifest key: examples
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83348ebe0e471d47df3cfbd2feadc0390cade33b9aa624a68a258b1aa42628c2
[INFO] running `Command { std: "docker" "start" "-a" "83348ebe0e471d47df3cfbd2feadc0390cade33b9aa624a68a258b1aa42628c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83348ebe0e471d47df3cfbd2feadc0390cade33b9aa624a68a258b1aa42628c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83348ebe0e471d47df3cfbd2feadc0390cade33b9aa624a68a258b1aa42628c2", kill_on_drop: false }`
[INFO] [stdout] 83348ebe0e471d47df3cfbd2feadc0390cade33b9aa624a68a258b1aa42628c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1739997f7449297d07880c1d750a624f09c9be99914bbc02bb610e788943af8
[INFO] running `Command { std: "docker" "start" "-a" "a1739997f7449297d07880c1d750a624f09c9be99914bbc02bb610e788943af8", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: examples
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling something-about-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "a1739997f7449297d07880c1d750a624f09c9be99914bbc02bb610e788943af8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1739997f7449297d07880c1d750a624f09c9be99914bbc02bb610e788943af8", kill_on_drop: false }`
[INFO] [stdout] a1739997f7449297d07880c1d750a624f09c9be99914bbc02bb610e788943af8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c1ced4c7b4770f9d87ba9c01994413d2dca63ddd3c4b563404dd3c4bd6e383d
[INFO] running `Command { std: "docker" "start" "-a" "8c1ced4c7b4770f9d87ba9c01994413d2dca63ddd3c4b563404dd3c4bd6e383d", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: examples
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling something-about-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: patterns aren't allowed in functions without bodies
[INFO] [stdout]   --> examples/impl_trait_mut_param.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn f1(mut a: String);
[INFO] [stdout]    |           ^^^^^ help: remove `mut` from the parameter: `a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `Command { std: "docker" "inspect" "8c1ced4c7b4770f9d87ba9c01994413d2dca63ddd3c4b563404dd3c4bd6e383d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c1ced4c7b4770f9d87ba9c01994413d2dca63ddd3c4b563404dd3c4bd6e383d", kill_on_drop: false }`
[INFO] [stdout] 8c1ced4c7b4770f9d87ba9c01994413d2dca63ddd3c4b563404dd3c4bd6e383d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fff14864f9c9e2fce4c3fa70a42558099d87336f4c6e070f52cb0a215f472d91
[INFO] running `Command { std: "docker" "start" "-a" "fff14864f9c9e2fce4c3fa70a42558099d87336f4c6e070f52cb0a215f472d91", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: examples
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: patterns aren't allowed in functions without bodies
[INFO] [stderr]   --> examples/impl_trait_mut_param.rs:10:11
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn f1(mut a: String);
[INFO] [stderr]    |           ^^^^^ help: remove `mut` from the parameter: `a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: `something-about-rust` (example "impl_trait_mut_param") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.35s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/something_about_rust-36e9f213157587a6)
[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" "fff14864f9c9e2fce4c3fa70a42558099d87336f4c6e070f52cb0a215f472d91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fff14864f9c9e2fce4c3fa70a42558099d87336f4c6e070f52cb0a215f472d91", kill_on_drop: false }`
[INFO] [stdout] fff14864f9c9e2fce4c3fa70a42558099d87336f4c6e070f52cb0a215f472d91