[INFO] cloning repository https://github.com/hsmtkk/potential-lamp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/potential-lamp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fpotential-lamp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fpotential-lamp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aeeb0b55c2c435e7d2cd9a55d39286ce22b6d34f
[INFO] testing hsmtkk/potential-lamp against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fpotential-lamp" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hsmtkk/potential-lamp on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hsmtkk/potential-lamp
[INFO] finished tweaking git repo https://github.com/hsmtkk/potential-lamp
[INFO] tweaked toml for git repo https://github.com/hsmtkk/potential-lamp written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/hsmtkk/potential-lamp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff706486b36739d4e6d135fd2f6d05d8a662acfda8f758cd3fc3da87abd53eb9
[INFO] running `Command { std: "docker" "start" "-a" "ff706486b36739d4e6d135fd2f6d05d8a662acfda8f758cd3fc3da87abd53eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff706486b36739d4e6d135fd2f6d05d8a662acfda8f758cd3fc3da87abd53eb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff706486b36739d4e6d135fd2f6d05d8a662acfda8f758cd3fc3da87abd53eb9", kill_on_drop: false }`
[INFO] [stdout] ff706486b36739d4e6d135fd2f6d05d8a662acfda8f758cd3fc3da87abd53eb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a365e22615f72975a0e1dd7d1c62e303551ae576eb607718bcce892d5d78f937
[INFO] running `Command { std: "docker" "start" "-a" "a365e22615f72975a0e1dd7d1c62e303551ae576eb607718bcce892d5d78f937", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]    Compiling potential-lamp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/grep.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new(number:u32, line:String) -> GrepResult {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grep`
[INFO] [stdout]   --> src/grep.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn grep(word: &str, lines:Vec<String>) -> Vec<GrepResult>{
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "a365e22615f72975a0e1dd7d1c62e303551ae576eb607718bcce892d5d78f937", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a365e22615f72975a0e1dd7d1c62e303551ae576eb607718bcce892d5d78f937", kill_on_drop: false }`
[INFO] [stdout] a365e22615f72975a0e1dd7d1c62e303551ae576eb607718bcce892d5d78f937
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcdf3f453ab41e5cb7a5db6c017fa177dca66597c879c2f8271b2470612dbd3e
[INFO] running `Command { std: "docker" "start" "-a" "dcdf3f453ab41e5cb7a5db6c017fa177dca66597c879c2f8271b2470612dbd3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling potential-lamp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/grep.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new(number:u32, line:String) -> GrepResult {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `grep`
[INFO] [stdout]   --> src/grep.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn grep(word: &str, lines:Vec<String>) -> Vec<GrepResult>{
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "dcdf3f453ab41e5cb7a5db6c017fa177dca66597c879c2f8271b2470612dbd3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcdf3f453ab41e5cb7a5db6c017fa177dca66597c879c2f8271b2470612dbd3e", kill_on_drop: false }`
[INFO] [stdout] dcdf3f453ab41e5cb7a5db6c017fa177dca66597c879c2f8271b2470612dbd3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f2ccb3a679e49e28f5406ae1f0308c659e57aa10eedfdbd052728b606c3bb5fe
[INFO] running `Command { std: "docker" "start" "-a" "f2ccb3a679e49e28f5406ae1f0308c659e57aa10eedfdbd052728b606c3bb5fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/grep.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn new(number:u32, line:String) -> GrepResult {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `grep`
[INFO] [stderr]   --> src/grep.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn grep(word: &str, lines:Vec<String>) -> Vec<GrepResult>{
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `potential-lamp` (lib) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/potential_lamp-8a3b1e66b8cca517)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test grep::tests::test_grep ... 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 potential-lamp
[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" "f2ccb3a679e49e28f5406ae1f0308c659e57aa10eedfdbd052728b606c3bb5fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2ccb3a679e49e28f5406ae1f0308c659e57aa10eedfdbd052728b606c3bb5fe", kill_on_drop: false }`
[INFO] [stdout] f2ccb3a679e49e28f5406ae1f0308c659e57aa10eedfdbd052728b606c3bb5fe