[INFO] fetching crate iterware 0.1.0...
[INFO] testing iterware-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate iterware 0.1.0 into /workspace/builds/worker-72/source
[INFO] validating manifest of crates.io crate iterware 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iterware 0.1.0
[INFO] finished tweaking crates.io crate iterware 0.1.0
[INFO] tweaked toml for crates.io crate iterware 0.1.0 written to /workspace/builds/worker-72/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-2022-02-22" "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-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a44ffe34bfd91e0861a830d2311aa4968747b49a7d988f5f2a2f986997868c8
[INFO] running `Command { std: "docker" "start" "-a" "3a44ffe34bfd91e0861a830d2311aa4968747b49a7d988f5f2a2f986997868c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a44ffe34bfd91e0861a830d2311aa4968747b49a7d988f5f2a2f986997868c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a44ffe34bfd91e0861a830d2311aa4968747b49a7d988f5f2a2f986997868c8", kill_on_drop: false }`
[INFO] [stdout] 3a44ffe34bfd91e0861a830d2311aa4968747b49a7d988f5f2a2f986997868c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2220724ccc60162913f023c9efa904872d1e5c298f6ca036b78f751be17e3c00
[INFO] running `Command { std: "docker" "start" "-a" "2220724ccc60162913f023c9efa904872d1e5c298f6ca036b78f751be17e3c00", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "2220724ccc60162913f023c9efa904872d1e5c298f6ca036b78f751be17e3c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2220724ccc60162913f023c9efa904872d1e5c298f6ca036b78f751be17e3c00", kill_on_drop: false }`
[INFO] [stdout] 2220724ccc60162913f023c9efa904872d1e5c298f6ca036b78f751be17e3c00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41872cabe73c9d6af49b2ad15720b5af1b67cbee46401d80465f6f71d876402e
[INFO] running `Command { std: "docker" "start" "-a" "41872cabe73c9d6af49b2ad15720b5af1b67cbee46401d80465f6f71d876402e", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "41872cabe73c9d6af49b2ad15720b5af1b67cbee46401d80465f6f71d876402e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41872cabe73c9d6af49b2ad15720b5af1b67cbee46401d80465f6f71d876402e", kill_on_drop: false }`
[INFO] [stdout] 41872cabe73c9d6af49b2ad15720b5af1b67cbee46401d80465f6f71d876402e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-72/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d2019d95e69f793714be9f2b610f3309aa04fd6e944eed8689c38bc1ad37d0cc
[INFO] running `Command { std: "docker" "start" "-a" "d2019d95e69f793714be9f2b610f3309aa04fd6e944eed8689c38bc1ad37d0cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iterware-95de82d87b1dfc8c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_borrow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterware
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - IteratorMiddleware::middleware (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d2019d95e69f793714be9f2b610f3309aa04fd6e944eed8689c38bc1ad37d0cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2019d95e69f793714be9f2b610f3309aa04fd6e944eed8689c38bc1ad37d0cc", kill_on_drop: false }`
[INFO] [stdout] d2019d95e69f793714be9f2b610f3309aa04fd6e944eed8689c38bc1ad37d0cc