[INFO] cloning repository https://github.com/vancha/monty_hall_simulation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vancha/monty_hall_simulation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fmonty_hall_simulation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fmonty_hall_simulation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2db6988fac71370db299e3e73dcfb7cd74f1c8e
[INFO] testing vancha/monty_hall_simulation against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvancha%2Fmonty_hall_simulation" "/workspace/builds/worker-41/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-41/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vancha/monty_hall_simulation 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/vancha/monty_hall_simulation
[INFO] finished tweaking git repo https://github.com/vancha/monty_hall_simulation
[INFO] tweaked toml for git repo https://github.com/vancha/monty_hall_simulation written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] crate git repo https://github.com/vancha/monty_hall_simulation 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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 29e190cc3630a9d33ab78e2e0bd8355269ce107b2f6b3d407a1c232c343b2d06
[INFO] running `Command { std: "docker" "start" "-a" "29e190cc3630a9d33ab78e2e0bd8355269ce107b2f6b3d407a1c232c343b2d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29e190cc3630a9d33ab78e2e0bd8355269ce107b2f6b3d407a1c232c343b2d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e190cc3630a9d33ab78e2e0bd8355269ce107b2f6b3d407a1c232c343b2d06", kill_on_drop: false }`
[INFO] [stdout] 29e190cc3630a9d33ab78e2e0bd8355269ce107b2f6b3d407a1c232c343b2d06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] b3f37fea44b8fab8b268a80be72b3a3c3c5ba83dd08220213b10b0b5c697cdac
[INFO] running `Command { std: "docker" "start" "-a" "b3f37fea44b8fab8b268a80be72b3a3c3c5ba83dd08220213b10b0b5c697cdac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling montyhall v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.38s
[INFO] running `Command { std: "docker" "inspect" "b3f37fea44b8fab8b268a80be72b3a3c3c5ba83dd08220213b10b0b5c697cdac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3f37fea44b8fab8b268a80be72b3a3c3c5ba83dd08220213b10b0b5c697cdac", kill_on_drop: false }`
[INFO] [stdout] b3f37fea44b8fab8b268a80be72b3a3c3c5ba83dd08220213b10b0b5c697cdac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 33452166e5ab7c35b309a838fdcf82d69877e551e92448e4579f943025eeb1f0
[INFO] running `Command { std: "docker" "start" "-a" "33452166e5ab7c35b309a838fdcf82d69877e551e92448e4579f943025eeb1f0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling montyhall v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "33452166e5ab7c35b309a838fdcf82d69877e551e92448e4579f943025eeb1f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33452166e5ab7c35b309a838fdcf82d69877e551e92448e4579f943025eeb1f0", kill_on_drop: false }`
[INFO] [stdout] 33452166e5ab7c35b309a838fdcf82d69877e551e92448e4579f943025eeb1f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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] 66318b146ae75c5e5190ed771bccf3a6c69bb37f925591bdb72317b729da51d4
[INFO] running `Command { std: "docker" "start" "-a" "66318b146ae75c5e5190ed771bccf3a6c69bb37f925591bdb72317b729da51d4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/montyhall-dd8ea160515c974e)
[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" "66318b146ae75c5e5190ed771bccf3a6c69bb37f925591bdb72317b729da51d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66318b146ae75c5e5190ed771bccf3a6c69bb37f925591bdb72317b729da51d4", kill_on_drop: false }`
[INFO] [stdout] 66318b146ae75c5e5190ed771bccf3a6c69bb37f925591bdb72317b729da51d4