[INFO] fetching crate testing-utils 0.1.0...
[INFO] testing testing-utils-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate testing-utils 0.1.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate testing-utils 0.1.0 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 testing-utils 0.1.0
[INFO] finished tweaking crates.io crate testing-utils 0.1.0
[INFO] tweaked toml for crates.io crate testing-utils 0.1.0 written to /workspace/builds/worker-78/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] 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 7b77085334c2644277c65dfaaf665745f1c0d7e679d4a54f8aef199c92507857
[INFO] running `Command { std: "docker" "start" "-a" "7b77085334c2644277c65dfaaf665745f1c0d7e679d4a54f8aef199c92507857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b77085334c2644277c65dfaaf665745f1c0d7e679d4a54f8aef199c92507857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b77085334c2644277c65dfaaf665745f1c0d7e679d4a54f8aef199c92507857", kill_on_drop: false }`
[INFO] [stdout] 7b77085334c2644277c65dfaaf665745f1c0d7e679d4a54f8aef199c92507857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 8423c67ff39bd35357dcae4d73fa7a0d89ec6e5f279382b17735a929436a10b3
[INFO] running `Command { std: "docker" "start" "-a" "8423c67ff39bd35357dcae4d73fa7a0d89ec6e5f279382b17735a929436a10b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling testing-utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.45s
[INFO] running `Command { std: "docker" "inspect" "8423c67ff39bd35357dcae4d73fa7a0d89ec6e5f279382b17735a929436a10b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8423c67ff39bd35357dcae4d73fa7a0d89ec6e5f279382b17735a929436a10b3", kill_on_drop: false }`
[INFO] [stdout] 8423c67ff39bd35357dcae4d73fa7a0d89ec6e5f279382b17735a929436a10b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] bf77aae9bf1a93069ac5fda63fc81207ff7829b1e7505834af86d68724aec0d7
[INFO] running `Command { std: "docker" "start" "-a" "bf77aae9bf1a93069ac5fda63fc81207ff7829b1e7505834af86d68724aec0d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling testing-utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "bf77aae9bf1a93069ac5fda63fc81207ff7829b1e7505834af86d68724aec0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf77aae9bf1a93069ac5fda63fc81207ff7829b1e7505834af86d68724aec0d7", kill_on_drop: false }`
[INFO] [stdout] bf77aae9bf1a93069ac5fda63fc81207ff7829b1e7505834af86d68724aec0d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 72cb147dad487f0b7eb13e0c2397e990e7eb2bfd1783ff7242fea0f7d5d003ce
[INFO] running `Command { std: "docker" "start" "-a" "72cb147dad487f0b7eb13e0c2397e990e7eb2bfd1783ff7242fea0f7d5d003ce", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/testing_utils-15d5b4699420f423)
[INFO] [stderr]    Doc-tests testing-utils
[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] [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" "72cb147dad487f0b7eb13e0c2397e990e7eb2bfd1783ff7242fea0f7d5d003ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72cb147dad487f0b7eb13e0c2397e990e7eb2bfd1783ff7242fea0f7d5d003ce", kill_on_drop: false }`
[INFO] [stdout] 72cb147dad487f0b7eb13e0c2397e990e7eb2bfd1783ff7242fea0f7d5d003ce