[INFO] cloning repository https://github.com/mrmodise/rust-intro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrmodise/rust-intro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmodise%2Frust-intro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmodise%2Frust-intro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab0b16f8be9686b945d8854792a79768ac391804
[INFO] testing mrmodise/rust-intro against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrmodise%2Frust-intro" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrmodise/rust-intro 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/mrmodise/rust-intro
[INFO] finished tweaking git repo https://github.com/mrmodise/rust-intro
[INFO] tweaked toml for git repo https://github.com/mrmodise/rust-intro written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/mrmodise/rust-intro 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-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] a11a1968804af09b1e71f4bf0bb15968297a393119b69470a1388876fa715596
[INFO] running `Command { std: "docker" "start" "-a" "a11a1968804af09b1e71f4bf0bb15968297a393119b69470a1388876fa715596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a11a1968804af09b1e71f4bf0bb15968297a393119b69470a1388876fa715596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11a1968804af09b1e71f4bf0bb15968297a393119b69470a1388876fa715596", kill_on_drop: false }`
[INFO] [stdout] a11a1968804af09b1e71f4bf0bb15968297a393119b69470a1388876fa715596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] 9b9ef7964c7060ef88898662f38339514231ab50dcd2115a23f4b31dea713864
[INFO] running `Command { std: "docker" "start" "-a" "9b9ef7964c7060ef88898662f38339514231ab50dcd2115a23f4b31dea713864", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling intro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.75s
[INFO] running `Command { std: "docker" "inspect" "9b9ef7964c7060ef88898662f38339514231ab50dcd2115a23f4b31dea713864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b9ef7964c7060ef88898662f38339514231ab50dcd2115a23f4b31dea713864", kill_on_drop: false }`
[INFO] [stdout] 9b9ef7964c7060ef88898662f38339514231ab50dcd2115a23f4b31dea713864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] f0072ebbb06ee4684dec7924044c69e9ab109dbab61c0735c8ce6cf3306d3e96
[INFO] running `Command { std: "docker" "start" "-a" "f0072ebbb06ee4684dec7924044c69e9ab109dbab61c0735c8ce6cf3306d3e96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling intro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "f0072ebbb06ee4684dec7924044c69e9ab109dbab61c0735c8ce6cf3306d3e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0072ebbb06ee4684dec7924044c69e9ab109dbab61c0735c8ce6cf3306d3e96", kill_on_drop: false }`
[INFO] [stdout] f0072ebbb06ee4684dec7924044c69e9ab109dbab61c0735c8ce6cf3306d3e96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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] ff6e31da50c0ba9ed6e03028e5d54bc2af41b21839daa3df7f37c9b82d6131b8
[INFO] running `Command { std: "docker" "start" "-a" "ff6e31da50c0ba9ed6e03028e5d54bc2af41b21839daa3df7f37c9b82d6131b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/intro-fac3caf6e90bf13e)
[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" "ff6e31da50c0ba9ed6e03028e5d54bc2af41b21839daa3df7f37c9b82d6131b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6e31da50c0ba9ed6e03028e5d54bc2af41b21839daa3df7f37c9b82d6131b8", kill_on_drop: false }`
[INFO] [stdout] ff6e31da50c0ba9ed6e03028e5d54bc2af41b21839daa3df7f37c9b82d6131b8