[INFO] fetching crate flare 0.0.1...
[INFO] testing flare-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flare 0.0.1 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate flare 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 flare 0.0.1
[INFO] finished tweaking crates.io crate flare 0.0.1
[INFO] tweaked toml for crates.io crate flare 0.0.1 written to /workspace/builds/worker-21/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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 60463714b184990a21c82e2d8135e5dcac293a1e0622b8a8f7b5cf84c418c393
[INFO] running `Command { std: "docker" "start" "-a" "60463714b184990a21c82e2d8135e5dcac293a1e0622b8a8f7b5cf84c418c393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60463714b184990a21c82e2d8135e5dcac293a1e0622b8a8f7b5cf84c418c393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60463714b184990a21c82e2d8135e5dcac293a1e0622b8a8f7b5cf84c418c393", kill_on_drop: false }`
[INFO] [stdout] 60463714b184990a21c82e2d8135e5dcac293a1e0622b8a8f7b5cf84c418c393
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] bf12d1f7391a0547258edf990ef4e8186461cfbd61dc564db5c046e38eb47173
[INFO] running `Command { std: "docker" "start" "-a" "bf12d1f7391a0547258edf990ef4e8186461cfbd61dc564db5c046e38eb47173", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling flare v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "bf12d1f7391a0547258edf990ef4e8186461cfbd61dc564db5c046e38eb47173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf12d1f7391a0547258edf990ef4e8186461cfbd61dc564db5c046e38eb47173", kill_on_drop: false }`
[INFO] [stdout] bf12d1f7391a0547258edf990ef4e8186461cfbd61dc564db5c046e38eb47173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 3c73930e8adb9683e83d6aef9ae11de458e235360990fb940d608d075decfe03
[INFO] running `Command { std: "docker" "start" "-a" "3c73930e8adb9683e83d6aef9ae11de458e235360990fb940d608d075decfe03", kill_on_drop: false }`
[INFO] [stderr]    Compiling flare v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "3c73930e8adb9683e83d6aef9ae11de458e235360990fb940d608d075decfe03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c73930e8adb9683e83d6aef9ae11de458e235360990fb940d608d075decfe03", kill_on_drop: false }`
[INFO] [stdout] 3c73930e8adb9683e83d6aef9ae11de458e235360990fb940d608d075decfe03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 8081d8fde7782c443bf45b61c765ce2e653eb0b6f4d8d34ad1f8855dddf7cf62
[INFO] running `Command { std: "docker" "start" "-a" "8081d8fde7782c443bf45b61c765ce2e653eb0b6f4d8d34ad1f8855dddf7cf62", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flare-8550e5f27ffb05fa)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flare
[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" "8081d8fde7782c443bf45b61c765ce2e653eb0b6f4d8d34ad1f8855dddf7cf62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8081d8fde7782c443bf45b61c765ce2e653eb0b6f4d8d34ad1f8855dddf7cf62", kill_on_drop: false }`
[INFO] [stdout] 8081d8fde7782c443bf45b61c765ce2e653eb0b6f4d8d34ad1f8855dddf7cf62