[INFO] fetching crate cox 0.0.1...
[INFO] testing cox-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate cox 0.0.1 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate cox 0.0.1 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 crates.io crate cox 0.0.1
[INFO] finished tweaking crates.io crate cox 0.0.1
[INFO] tweaked toml for crates.io crate cox 0.0.1 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] ee45f6c90fe51a6c123b3b6b0942c62247f0cecdd06a7cd4ee6523c1fc97f7c7
[INFO] running `Command { std: "docker" "start" "-a" "ee45f6c90fe51a6c123b3b6b0942c62247f0cecdd06a7cd4ee6523c1fc97f7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee45f6c90fe51a6c123b3b6b0942c62247f0cecdd06a7cd4ee6523c1fc97f7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee45f6c90fe51a6c123b3b6b0942c62247f0cecdd06a7cd4ee6523c1fc97f7c7", kill_on_drop: false }`
[INFO] [stdout] ee45f6c90fe51a6c123b3b6b0942c62247f0cecdd06a7cd4ee6523c1fc97f7c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 54e4df4e050ac8314bfbb743f5d7f8f167f9ee416711a9a042325110999c844a
[INFO] running `Command { std: "docker" "start" "-a" "54e4df4e050ac8314bfbb743f5d7f8f167f9ee416711a9a042325110999c844a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "54e4df4e050ac8314bfbb743f5d7f8f167f9ee416711a9a042325110999c844a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e4df4e050ac8314bfbb743f5d7f8f167f9ee416711a9a042325110999c844a", kill_on_drop: false }`
[INFO] [stdout] 54e4df4e050ac8314bfbb743f5d7f8f167f9ee416711a9a042325110999c844a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] [stdout] 23096d09cb4fae7130b4e5341470946fd684927fda2fe23c6d868d7d2f50cf1a
[INFO] running `Command { std: "docker" "start" "-a" "23096d09cb4fae7130b4e5341470946fd684927fda2fe23c6d868d7d2f50cf1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cox v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "23096d09cb4fae7130b4e5341470946fd684927fda2fe23c6d868d7d2f50cf1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23096d09cb4fae7130b4e5341470946fd684927fda2fe23c6d868d7d2f50cf1a", kill_on_drop: false }`
[INFO] [stdout] 23096d09cb4fae7130b4e5341470946fd684927fda2fe23c6d868d7d2f50cf1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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] 200e86984345075bd4f81bcdd0677402be35e8de94164d9157531b0f9298cf85
[INFO] running `Command { std: "docker" "start" "-a" "200e86984345075bd4f81bcdd0677402be35e8de94164d9157531b0f9298cf85", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cox-cf169d5cd48866d8)
[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" "200e86984345075bd4f81bcdd0677402be35e8de94164d9157531b0f9298cf85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200e86984345075bd4f81bcdd0677402be35e8de94164d9157531b0f9298cf85", kill_on_drop: false }`
[INFO] [stdout] 200e86984345075bd4f81bcdd0677402be35e8de94164d9157531b0f9298cf85