[INFO] cloning repository https://github.com/richardpringle/rust-grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/richardpringle/rust-grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardpringle%2Frust-grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardpringle%2Frust-grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8e7059f3be2762fae81e4b2192e2ea17eb3f26c
[INFO] testing richardpringle/rust-grep against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frichardpringle%2Frust-grep" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/richardpringle/rust-grep 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/richardpringle/rust-grep
[INFO] finished tweaking git repo https://github.com/richardpringle/rust-grep
[INFO] tweaked toml for git repo https://github.com/richardpringle/rust-grep written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/richardpringle/rust-grep 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f2be2751392938d638f9fae132a517ee9bf77c5099fd26b0e7366dd30aa43838
[INFO] running `Command { std: "docker" "start" "-a" "f2be2751392938d638f9fae132a517ee9bf77c5099fd26b0e7366dd30aa43838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2be2751392938d638f9fae132a517ee9bf77c5099fd26b0e7366dd30aa43838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2be2751392938d638f9fae132a517ee9bf77c5099fd26b0e7366dd30aa43838", kill_on_drop: false }`
[INFO] [stdout] f2be2751392938d638f9fae132a517ee9bf77c5099fd26b0e7366dd30aa43838
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] f974f8994efda373cb18c5abdf06c696010fb22eaf83d6cd274e8475e906c055
[INFO] running `Command { std: "docker" "start" "-a" "f974f8994efda373cb18c5abdf06c696010fb22eaf83d6cd274e8475e906c055", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "f974f8994efda373cb18c5abdf06c696010fb22eaf83d6cd274e8475e906c055", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f974f8994efda373cb18c5abdf06c696010fb22eaf83d6cd274e8475e906c055", kill_on_drop: false }`
[INFO] [stdout] f974f8994efda373cb18c5abdf06c696010fb22eaf83d6cd274e8475e906c055
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 27dae587f2679c9f3b4e6ed8414f07cc658ff6115fc0dfe7d240514a8ff7371a
[INFO] running `Command { std: "docker" "start" "-a" "27dae587f2679c9f3b4e6ed8414f07cc658ff6115fc0dfe7d240514a8ff7371a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "27dae587f2679c9f3b4e6ed8414f07cc658ff6115fc0dfe7d240514a8ff7371a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27dae587f2679c9f3b4e6ed8414f07cc658ff6115fc0dfe7d240514a8ff7371a", kill_on_drop: false }`
[INFO] [stdout] 27dae587f2679c9f3b4e6ed8414f07cc658ff6115fc0dfe7d240514a8ff7371a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 6aa07411c66bb87ca52bcdf106874bfc68268014e5fc2bb933fb54ec23f5a59f
[INFO] running `Command { std: "docker" "start" "-a" "6aa07411c66bb87ca52bcdf106874bfc68268014e5fc2bb933fb54ec23f5a59f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_grep-eab978728072b71a)
[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" "6aa07411c66bb87ca52bcdf106874bfc68268014e5fc2bb933fb54ec23f5a59f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa07411c66bb87ca52bcdf106874bfc68268014e5fc2bb933fb54ec23f5a59f", kill_on_drop: false }`
[INFO] [stdout] 6aa07411c66bb87ca52bcdf106874bfc68268014e5fc2bb933fb54ec23f5a59f