[INFO] cloning repository https://github.com/aholowko/rust_sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aholowko/rust_sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faholowko%2Frust_sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faholowko%2Frust_sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5897a77b57707bed8c60d158a5b75d7db4216083
[INFO] testing aholowko/rust_sandbox against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faholowko%2Frust_sandbox" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aholowko/rust_sandbox 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/aholowko/rust_sandbox
[INFO] finished tweaking git repo https://github.com/aholowko/rust_sandbox
[INFO] tweaked toml for git repo https://github.com/aholowko/rust_sandbox written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/aholowko/rust_sandbox 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-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 3f42a27b0eec7985fd0e69427556eb77e04ef43ef32cb870d5eff61a2e0d4253
[INFO] running `Command { std: "docker" "start" "-a" "3f42a27b0eec7985fd0e69427556eb77e04ef43ef32cb870d5eff61a2e0d4253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f42a27b0eec7985fd0e69427556eb77e04ef43ef32cb870d5eff61a2e0d4253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f42a27b0eec7985fd0e69427556eb77e04ef43ef32cb870d5eff61a2e0d4253", kill_on_drop: false }`
[INFO] [stdout] 3f42a27b0eec7985fd0e69427556eb77e04ef43ef32cb870d5eff61a2e0d4253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 14ea94749958c096ba63bcf8bea6ec5f5ea3391421a081de83d830ada3f8158c
[INFO] running `Command { std: "docker" "start" "-a" "14ea94749958c096ba63bcf8bea6ec5f5ea3391421a081de83d830ada3f8158c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "14ea94749958c096ba63bcf8bea6ec5f5ea3391421a081de83d830ada3f8158c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14ea94749958c096ba63bcf8bea6ec5f5ea3391421a081de83d830ada3f8158c", kill_on_drop: false }`
[INFO] [stdout] 14ea94749958c096ba63bcf8bea6ec5f5ea3391421a081de83d830ada3f8158c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 83f75d6de1c3fcfb4e86423f021764c02fdee93aa348605067d590111f3e721c
[INFO] running `Command { std: "docker" "start" "-a" "83f75d6de1c3fcfb4e86423f021764c02fdee93aa348605067d590111f3e721c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "83f75d6de1c3fcfb4e86423f021764c02fdee93aa348605067d590111f3e721c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f75d6de1c3fcfb4e86423f021764c02fdee93aa348605067d590111f3e721c", kill_on_drop: false }`
[INFO] [stdout] 83f75d6de1c3fcfb4e86423f021764c02fdee93aa348605067d590111f3e721c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] ac663761c8c45574068af55e7d9318c509c73a2e7d92632ab4e5711e629c8738
[INFO] running `Command { std: "docker" "start" "-a" "ac663761c8c45574068af55e7d9318c509c73a2e7d92632ab4e5711e629c8738", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_sandbox-d0278c83f6af9d81)
[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" "ac663761c8c45574068af55e7d9318c509c73a2e7d92632ab4e5711e629c8738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac663761c8c45574068af55e7d9318c509c73a2e7d92632ab4e5711e629c8738", kill_on_drop: false }`
[INFO] [stdout] ac663761c8c45574068af55e7d9318c509c73a2e7d92632ab4e5711e629c8738