[INFO] fetching crate forkable 0.1.0...
[INFO] testing forkable-0.1.0 against 1.79.0 for beta-1.80-4
[INFO] extracting crate forkable 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate forkable 0.1.0 on toolchain 1.79.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate forkable 0.1.0
[INFO] finished tweaking crates.io crate forkable 0.1.0
[INFO] tweaked toml for crates.io crate forkable 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding circularing v2.2.1 (latest: v3.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.79.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lock_api v0.4.12
[INFO] [stderr]   Downloaded spin v0.9.8
[INFO] [stderr]   Downloaded quote v1.0.36
[INFO] [stderr]   Downloaded likeness v1.1.0
[INFO] [stderr]   Downloaded paste v1.0.15
[INFO] [stderr]   Downloaded heck v0.5.0
[INFO] [stderr]   Downloaded circularing v2.2.1
[INFO] [stderr]   Downloaded semver v1.0.23
[INFO] [stderr]   Downloaded rustc_version v0.4.0
[INFO] [stderr]   Downloaded syn v2.0.68
[INFO] [stderr]   Downloaded snafu v0.8.3
[INFO] [stderr]   Downloaded autocfg v1.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.86
[INFO] [stderr]   Downloaded snafu-derive v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c85931561473a0bfb8ca9741ad9b3cf85b5eff6587f1a686fd968168d8ffaef0
[INFO] running `Command { std: "docker" "start" "-a" "c85931561473a0bfb8ca9741ad9b3cf85b5eff6587f1a686fd968168d8ffaef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c85931561473a0bfb8ca9741ad9b3cf85b5eff6587f1a686fd968168d8ffaef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c85931561473a0bfb8ca9741ad9b3cf85b5eff6587f1a686fd968168d8ffaef0", kill_on_drop: false }`
[INFO] [stdout] c85931561473a0bfb8ca9741ad9b3cf85b5eff6587f1a686fd968168d8ffaef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95fb52d27059e98ee89efa58fac300f3125d06ed8b4ce0652f65ae8dac04937c
[INFO] running `Command { std: "docker" "start" "-a" "95fb52d27059e98ee89efa58fac300f3125d06ed8b4ce0652f65ae8dac04937c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling likeness v1.1.0
[INFO] [stderr]    Compiling circularing v2.2.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling forkable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling snafu-derive v0.8.3
[INFO] [stderr]    Compiling snafu v0.8.3
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.56s
[INFO] running `Command { std: "docker" "inspect" "95fb52d27059e98ee89efa58fac300f3125d06ed8b4ce0652f65ae8dac04937c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fb52d27059e98ee89efa58fac300f3125d06ed8b4ce0652f65ae8dac04937c", kill_on_drop: false }`
[INFO] [stdout] 95fb52d27059e98ee89efa58fac300f3125d06ed8b4ce0652f65ae8dac04937c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17141187053d4cfbc29736c0b301f7ca662e6cec7fd90b335373555c32fa12be
[INFO] running `Command { std: "docker" "start" "-a" "17141187053d4cfbc29736c0b301f7ca662e6cec7fd90b335373555c32fa12be", kill_on_drop: false }`
[INFO] [stderr]    Compiling forkable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "17141187053d4cfbc29736c0b301f7ca662e6cec7fd90b335373555c32fa12be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17141187053d4cfbc29736c0b301f7ca662e6cec7fd90b335373555c32fa12be", kill_on_drop: false }`
[INFO] [stdout] 17141187053d4cfbc29736c0b301f7ca662e6cec7fd90b335373555c32fa12be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+1.79.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b804990f63c6c707910276976015871aaead7161bfe5a25e9142dab6c9cebbf1
[INFO] running `Command { std: "docker" "start" "-a" "b804990f63c6c707910276976015871aaead7161bfe5a25e9142dab6c9cebbf1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/forkable-586fed789f70b378)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test sync::test::storage_exhaust ... ok
[INFO] [stdout] test sync::test::iter_race ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests forkable
[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" "b804990f63c6c707910276976015871aaead7161bfe5a25e9142dab6c9cebbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b804990f63c6c707910276976015871aaead7161bfe5a25e9142dab6c9cebbf1", kill_on_drop: false }`
[INFO] [stdout] b804990f63c6c707910276976015871aaead7161bfe5a25e9142dab6c9cebbf1