[INFO] fetching crate ioslice 0.6.0-alpha.2...
[INFO] testing ioslice-0.6.0-alpha.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ioslice 0.6.0-alpha.2 into /workspace/builds/worker-51/source
[INFO] validating manifest of crates.io crate ioslice 0.6.0-alpha.2 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 ioslice 0.6.0-alpha.2
[INFO] finished tweaking crates.io crate ioslice 0.6.0-alpha.2
[INFO] tweaked toml for crates.io crate ioslice 0.6.0-alpha.2 written to /workspace/builds/worker-51/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-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] a27c06d1e65dcfd433a7fd5714ff6e58798d11b7508a85c1174072b59f02baeb
[INFO] running `Command { std: "docker" "start" "-a" "a27c06d1e65dcfd433a7fd5714ff6e58798d11b7508a85c1174072b59f02baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a27c06d1e65dcfd433a7fd5714ff6e58798d11b7508a85c1174072b59f02baeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27c06d1e65dcfd433a7fd5714ff6e58798d11b7508a85c1174072b59f02baeb", kill_on_drop: false }`
[INFO] [stdout] a27c06d1e65dcfd433a7fd5714ff6e58798d11b7508a85c1174072b59f02baeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 2e589002cd7c00e1b90402ad7e30616000e8d7cf907f1a2416baecd5564c6e2d
[INFO] running `Command { std: "docker" "start" "-a" "2e589002cd7c00e1b90402ad7e30616000e8d7cf907f1a2416baecd5564c6e2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ioslice v0.6.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "2e589002cd7c00e1b90402ad7e30616000e8d7cf907f1a2416baecd5564c6e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e589002cd7c00e1b90402ad7e30616000e8d7cf907f1a2416baecd5564c6e2d", kill_on_drop: false }`
[INFO] [stdout] 2e589002cd7c00e1b90402ad7e30616000e8d7cf907f1a2416baecd5564c6e2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 2b55923ce80ae6444e4f12aa55a713f7e146723743f89fe02b2da4ea61cdccd5
[INFO] running `Command { std: "docker" "start" "-a" "2b55923ce80ae6444e4f12aa55a713f7e146723743f89fe02b2da4ea61cdccd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ioslice v0.6.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "2b55923ce80ae6444e4f12aa55a713f7e146723743f89fe02b2da4ea61cdccd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b55923ce80ae6444e4f12aa55a713f7e146723743f89fe02b2da4ea61cdccd5", kill_on_drop: false }`
[INFO] [stdout] 2b55923ce80ae6444e4f12aa55a713f7e146723743f89fe02b2da4ea61cdccd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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] 7c935cd54da96b7992d507bc612232b132426dd4eb577c0316849c8ba8b99c3b
[INFO] running `Command { std: "docker" "start" "-a" "7c935cd54da96b7992d507bc612232b132426dd4eb577c0316849c8ba8b99c3b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ioslice-2b1960508ab443aa)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test iovec::tests::advance ... ok
[INFO] [stdout] test iovec::tests::splitting_ioslice ... ok
[INFO] [stderr]    Doc-tests ioslice
[INFO] [stdout] test iovec::tests::splitting_ioslice_mut ... ok
[INFO] [stdout] test iovec::tests::abi_compatibility_with_std ... ok
[INFO] [stdout] test iovec::tests::abi_compatibility_with_iovec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 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" "7c935cd54da96b7992d507bc612232b132426dd4eb577c0316849c8ba8b99c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c935cd54da96b7992d507bc612232b132426dd4eb577c0316849c8ba8b99c3b", kill_on_drop: false }`
[INFO] [stdout] 7c935cd54da96b7992d507bc612232b132426dd4eb577c0316849c8ba8b99c3b