[INFO] cloning repository https://github.com/yenser/challenge-383-easy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yenser/challenge-383-easy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenser%2Fchallenge-383-easy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenser%2Fchallenge-383-easy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe891795741f1c3b3e33874886acb0e577fe2dec
[INFO] testing yenser/challenge-383-easy against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenser%2Fchallenge-383-easy" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yenser/challenge-383-easy 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/yenser/challenge-383-easy
[INFO] finished tweaking git repo https://github.com/yenser/challenge-383-easy
[INFO] tweaked toml for git repo https://github.com/yenser/challenge-383-easy written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/yenser/challenge-383-easy 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]     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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] b51de7bfdd03f53e799e9fa59e3648829e2228362b5faba770111b98b245abc9
[INFO] running `Command { std: "docker" "start" "-a" "b51de7bfdd03f53e799e9fa59e3648829e2228362b5faba770111b98b245abc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b51de7bfdd03f53e799e9fa59e3648829e2228362b5faba770111b98b245abc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51de7bfdd03f53e799e9fa59e3648829e2228362b5faba770111b98b245abc9", kill_on_drop: false }`
[INFO] [stdout] b51de7bfdd03f53e799e9fa59e3648829e2228362b5faba770111b98b245abc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] f8b0cb7e579aa1ac9510837d3ee58319a13dd06d88f32ca05db889b786941e2c
[INFO] running `Command { std: "docker" "start" "-a" "f8b0cb7e579aa1ac9510837d3ee58319a13dd06d88f32ca05db889b786941e2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling challenge-383-easy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "f8b0cb7e579aa1ac9510837d3ee58319a13dd06d88f32ca05db889b786941e2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b0cb7e579aa1ac9510837d3ee58319a13dd06d88f32ca05db889b786941e2c", kill_on_drop: false }`
[INFO] [stdout] f8b0cb7e579aa1ac9510837d3ee58319a13dd06d88f32ca05db889b786941e2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 26d6ad1909bbf828256e5efb051cf919a24ce31673b42095dbbffe78dc73d245
[INFO] running `Command { std: "docker" "start" "-a" "26d6ad1909bbf828256e5efb051cf919a24ce31673b42095dbbffe78dc73d245", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling challenge-383-easy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "26d6ad1909bbf828256e5efb051cf919a24ce31673b42095dbbffe78dc73d245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26d6ad1909bbf828256e5efb051cf919a24ce31673b42095dbbffe78dc73d245", kill_on_drop: false }`
[INFO] [stdout] 26d6ad1909bbf828256e5efb051cf919a24ce31673b42095dbbffe78dc73d245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 17d5f2c4bd948606b41fe7055d33a187f462c52112e1b3e8bafb7cd7ba7b00ac
[INFO] running `Command { std: "docker" "start" "-a" "17d5f2c4bd948606b41fe7055d33a187f462c52112e1b3e8bafb7cd7ba7b00ac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/challenge_383_easy-4bd1971dfda09837)
[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" "17d5f2c4bd948606b41fe7055d33a187f462c52112e1b3e8bafb7cd7ba7b00ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d5f2c4bd948606b41fe7055d33a187f462c52112e1b3e8bafb7cd7ba7b00ac", kill_on_drop: false }`
[INFO] [stdout] 17d5f2c4bd948606b41fe7055d33a187f462c52112e1b3e8bafb7cd7ba7b00ac