[INFO] cloning repository https://github.com/vasuse7en/rust-excercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vasuse7en/rust-excercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasuse7en%2Frust-excercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasuse7en%2Frust-excercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 454a97f5775691863f2ee84c4266f43e6b55c99f
[INFO] testing vasuse7en/rust-excercises against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasuse7en%2Frust-excercises" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vasuse7en/rust-excercises 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/vasuse7en/rust-excercises
[INFO] finished tweaking git repo https://github.com/vasuse7en/rust-excercises
[INFO] tweaked toml for git repo https://github.com/vasuse7en/rust-excercises written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate git repo https://github.com/vasuse7en/rust-excercises 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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] a1059706a7cc90c0b13cc7c417c6bbe61f0f8048d4ab1cdb3f16dcf335d4e8a2
[INFO] running `Command { std: "docker" "start" "-a" "a1059706a7cc90c0b13cc7c417c6bbe61f0f8048d4ab1cdb3f16dcf335d4e8a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1059706a7cc90c0b13cc7c417c6bbe61f0f8048d4ab1cdb3f16dcf335d4e8a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1059706a7cc90c0b13cc7c417c6bbe61f0f8048d4ab1cdb3f16dcf335d4e8a2", kill_on_drop: false }`
[INFO] [stdout] a1059706a7cc90c0b13cc7c417c6bbe61f0f8048d4ab1cdb3f16dcf335d4e8a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] f3b3e4ac5c518ce95d41ec4b5981c333ef73a019da6353b3475f7c603c430eee
[INFO] running `Command { std: "docker" "start" "-a" "f3b3e4ac5c518ce95d41ec4b5981c333ef73a019da6353b3475f7c603c430eee", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling ordinal v0.2.3
[INFO] [stderr]    Compiling rust_excercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.15s
[INFO] running `Command { std: "docker" "inspect" "f3b3e4ac5c518ce95d41ec4b5981c333ef73a019da6353b3475f7c603c430eee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b3e4ac5c518ce95d41ec4b5981c333ef73a019da6353b3475f7c603c430eee", kill_on_drop: false }`
[INFO] [stdout] f3b3e4ac5c518ce95d41ec4b5981c333ef73a019da6353b3475f7c603c430eee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 5a51ae567cb57922a1ff2137539eba02313640105db1c36a56129e5f83fed656
[INFO] running `Command { std: "docker" "start" "-a" "5a51ae567cb57922a1ff2137539eba02313640105db1c36a56129e5f83fed656", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_excercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5a51ae567cb57922a1ff2137539eba02313640105db1c36a56129e5f83fed656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a51ae567cb57922a1ff2137539eba02313640105db1c36a56129e5f83fed656", kill_on_drop: false }`
[INFO] [stdout] 5a51ae567cb57922a1ff2137539eba02313640105db1c36a56129e5f83fed656
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 03f4787e3a357e18ff932d08ba4c973caaa6f890b2b16457b0dcf1e0bd0e9ad3
[INFO] running `Command { std: "docker" "start" "-a" "03f4787e3a357e18ff932d08ba4c973caaa6f890b2b16457b0dcf1e0bd0e9ad3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_excercises-bad7550f98f79129)
[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" "03f4787e3a357e18ff932d08ba4c973caaa6f890b2b16457b0dcf1e0bd0e9ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f4787e3a357e18ff932d08ba4c973caaa6f890b2b16457b0dcf1e0bd0e9ad3", kill_on_drop: false }`
[INFO] [stdout] 03f4787e3a357e18ff932d08ba4c973caaa6f890b2b16457b0dcf1e0bd0e9ad3