[INFO] fetching crate light-rc-arena 0.1.5...
[INFO] testing light-rc-arena-0.1.5 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate light-rc-arena 0.1.5 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate light-rc-arena 0.1.5
[INFO] finished tweaking crates.io crate light-rc-arena 0.1.5
[INFO] tweaked toml for crates.io crate light-rc-arena 0.1.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate light-rc-arena 0.1.5 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate light-rc-arena 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43e951e83e4a716886c5a8fbc3430133c36e4d1b941878eef7fffe6a13939504
[INFO] running `Command { std: "docker" "start" "-a" "43e951e83e4a716886c5a8fbc3430133c36e4d1b941878eef7fffe6a13939504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43e951e83e4a716886c5a8fbc3430133c36e4d1b941878eef7fffe6a13939504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e951e83e4a716886c5a8fbc3430133c36e4d1b941878eef7fffe6a13939504", kill_on_drop: false }`
[INFO] [stdout] 43e951e83e4a716886c5a8fbc3430133c36e4d1b941878eef7fffe6a13939504
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d44ff264e1343aa3089859e087d4bf7ecbfcb29dd1f7cd1be97de31b48abbf3
[INFO] running `Command { std: "docker" "start" "-a" "9d44ff264e1343aa3089859e087d4bf7ecbfcb29dd1f7cd1be97de31b48abbf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling light-rc-arena v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "9d44ff264e1343aa3089859e087d4bf7ecbfcb29dd1f7cd1be97de31b48abbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d44ff264e1343aa3089859e087d4bf7ecbfcb29dd1f7cd1be97de31b48abbf3", kill_on_drop: false }`
[INFO] [stdout] 9d44ff264e1343aa3089859e087d4bf7ecbfcb29dd1f7cd1be97de31b48abbf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d15344dec055588bb14c74849f31261ec653d27031b3ac216dfccb8dc6683524
[INFO] running `Command { std: "docker" "start" "-a" "d15344dec055588bb14c74849f31261ec653d27031b3ac216dfccb8dc6683524", kill_on_drop: false }`
[INFO] [stderr]    Compiling light-rc-arena v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "d15344dec055588bb14c74849f31261ec653d27031b3ac216dfccb8dc6683524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d15344dec055588bb14c74849f31261ec653d27031b3ac216dfccb8dc6683524", kill_on_drop: false }`
[INFO] [stdout] d15344dec055588bb14c74849f31261ec653d27031b3ac216dfccb8dc6683524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 19ce50126bd874d2a4d31b103dbbcd8d11e39c33d2ee36f4e6d7e749dafe3ee6
[INFO] running `Command { std: "docker" "start" "-a" "19ce50126bd874d2a4d31b103dbbcd8d11e39c33d2ee36f4e6d7e749dafe3ee6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/light_rc_arena-4e1bf0dd9b3b7dbe)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::usage_guide_from_readme ... ok
[INFO] [stdout] test tests::basic_usage ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests light_rc_arena
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/../README.md - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - Arena (line 167) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.77s; merged doctests compilation took 0.76s
[INFO] running `Command { std: "docker" "inspect" "19ce50126bd874d2a4d31b103dbbcd8d11e39c33d2ee36f4e6d7e749dafe3ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ce50126bd874d2a4d31b103dbbcd8d11e39c33d2ee36f4e6d7e749dafe3ee6", kill_on_drop: false }`
[INFO] [stdout] 19ce50126bd874d2a4d31b103dbbcd8d11e39c33d2ee36f4e6d7e749dafe3ee6