[INFO] fetching crate rab-core 0.3.3...
[INFO] testing rab-core-0.3.3 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate rab-core 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rab-core 0.3.3 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rab-core 0.3.3
[INFO] finished tweaking crates.io crate rab-core 0.3.3
[INFO] tweaked toml for crates.io crate rab-core 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 518980b8c1a3a16826ada023c044204a01a47d2149ca55850d099b9a169da9bd
[INFO] running `Command { std: "docker" "start" "-a" "518980b8c1a3a16826ada023c044204a01a47d2149ca55850d099b9a169da9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "518980b8c1a3a16826ada023c044204a01a47d2149ca55850d099b9a169da9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518980b8c1a3a16826ada023c044204a01a47d2149ca55850d099b9a169da9bd", kill_on_drop: false }`
[INFO] [stdout] 518980b8c1a3a16826ada023c044204a01a47d2149ca55850d099b9a169da9bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4831f3a1d0d13c32eceb3d247baeaced42ca92ef2f48821947cc0a2cb46da4a
[INFO] running `Command { std: "docker" "start" "-a" "f4831f3a1d0d13c32eceb3d247baeaced42ca92ef2f48821947cc0a2cb46da4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rab-core v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.95s
[INFO] running `Command { std: "docker" "inspect" "f4831f3a1d0d13c32eceb3d247baeaced42ca92ef2f48821947cc0a2cb46da4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4831f3a1d0d13c32eceb3d247baeaced42ca92ef2f48821947cc0a2cb46da4a", kill_on_drop: false }`
[INFO] [stdout] f4831f3a1d0d13c32eceb3d247baeaced42ca92ef2f48821947cc0a2cb46da4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b2e1dfddb28e6e6e2116a36e7b86bbace153caabc1a9aa3b518d39a92634af3
[INFO] running `Command { std: "docker" "start" "-a" "5b2e1dfddb28e6e6e2116a36e7b86bbace153caabc1a9aa3b518d39a92634af3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rab-core v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "5b2e1dfddb28e6e6e2116a36e7b86bbace153caabc1a9aa3b518d39a92634af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2e1dfddb28e6e6e2116a36e7b86bbace153caabc1a9aa3b518d39a92634af3", kill_on_drop: false }`
[INFO] [stdout] 5b2e1dfddb28e6e6e2116a36e7b86bbace153caabc1a9aa3b518d39a92634af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34effc6d115fcc6cfb6b2765298387294d4d110f3e3bbcac7951411d3d39c47c
[INFO] running `Command { std: "docker" "start" "-a" "34effc6d115fcc6cfb6b2765298387294d4d110f3e3bbcac7951411d3d39c47c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rab_core-86d85a04d4b4b8fa)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rab-core
[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" "34effc6d115fcc6cfb6b2765298387294d4d110f3e3bbcac7951411d3d39c47c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34effc6d115fcc6cfb6b2765298387294d4d110f3e3bbcac7951411d3d39c47c", kill_on_drop: false }`
[INFO] [stdout] 34effc6d115fcc6cfb6b2765298387294d4d110f3e3bbcac7951411d3d39c47c