[INFO] cloning repository https://github.com/jw3126/toygrep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jw3126/toygrep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3126%2Ftoygrep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3126%2Ftoygrep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d96da56dce80c785dec3ea894b91fb480f71a7e
[INFO] testing jw3126/toygrep against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3126%2Ftoygrep" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jw3126/toygrep on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jw3126/toygrep
[INFO] finished tweaking git repo https://github.com/jw3126/toygrep
[INFO] tweaked toml for git repo https://github.com/jw3126/toygrep written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jw3126/toygrep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.6
[INFO] [stderr]   Downloaded atty v0.2.8
[INFO] [stderr]   Downloaded serde_json v1.0.15
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded syn v0.13.1
[INFO] [stderr]   Downloaded serde_derive v1.0.41
[INFO] [stderr]   Downloaded serde v1.0.41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d175122552cd15b8541ae14fd850895a54c68a0fb5772e9e033d87f658769f3c
[INFO] running `Command { std: "docker" "start" "-a" "d175122552cd15b8541ae14fd850895a54c68a0fb5772e9e033d87f658769f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d175122552cd15b8541ae14fd850895a54c68a0fb5772e9e033d87f658769f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d175122552cd15b8541ae14fd850895a54c68a0fb5772e9e033d87f658769f3c", kill_on_drop: false }`
[INFO] [stdout] d175122552cd15b8541ae14fd850895a54c68a0fb5772e9e033d87f658769f3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3413eedbd002cf3a5eec81361eec843e373998e7b127be996c391aa455ed85d6
[INFO] running `Command { std: "docker" "start" "-a" "3413eedbd002cf3a5eec81361eec843e373998e7b127be996c391aa455ed85d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling toygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `Command { std: "docker" "inspect" "3413eedbd002cf3a5eec81361eec843e373998e7b127be996c391aa455ed85d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3413eedbd002cf3a5eec81361eec843e373998e7b127be996c391aa455ed85d6", kill_on_drop: false }`
[INFO] [stdout] 3413eedbd002cf3a5eec81361eec843e373998e7b127be996c391aa455ed85d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5cde705d820f953b51d632fcf5dc0dc8e93b5b7e1167d9be9e0b2964e199942b
[INFO] running `Command { std: "docker" "start" "-a" "5cde705d820f953b51d632fcf5dc0dc8e93b5b7e1167d9be9e0b2964e199942b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]    Compiling serde v1.0.41
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.6
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling quote v0.5.1
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling serde_derive v1.0.41
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.15
[INFO] [stderr]    Compiling backtrace v0.3.6
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling assert_cli v0.5.4
[INFO] [stderr]    Compiling toygrep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 35.61s
[INFO] running `Command { std: "docker" "inspect" "5cde705d820f953b51d632fcf5dc0dc8e93b5b7e1167d9be9e0b2964e199942b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cde705d820f953b51d632fcf5dc0dc8e93b5b7e1167d9be9e0b2964e199942b", kill_on_drop: false }`
[INFO] [stdout] 5cde705d820f953b51d632fcf5dc0dc8e93b5b7e1167d9be9e0b2964e199942b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d4e14943f66edf82fa10f84ea13ce9cd30f5dfc6bd94aa11bc3a15e7ee2335a9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d4e14943f66edf82fa10f84ea13ce9cd30f5dfc6bd94aa11bc3a15e7ee2335a9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/toygrep-21cbc3b60458c185)
[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] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-7f97ea161a4c9750)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test integration::no_arguments ... ok
[INFO] [stdout] test integration::non_existing_file ... ok
[INFO] [stdout] test integration::numbers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d4e14943f66edf82fa10f84ea13ce9cd30f5dfc6bd94aa11bc3a15e7ee2335a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4e14943f66edf82fa10f84ea13ce9cd30f5dfc6bd94aa11bc3a15e7ee2335a9", kill_on_drop: false }`
[INFO] [stdout] d4e14943f66edf82fa10f84ea13ce9cd30f5dfc6bd94aa11bc3a15e7ee2335a9