[INFO] fetching crate double-checked-cell 2.1.0...
[INFO] testing double-checked-cell-2.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate double-checked-cell 2.1.0 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate double-checked-cell 2.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate double-checked-cell 2.1.0
[INFO] finished tweaking crates.io crate double-checked-cell 2.1.0
[INFO] tweaked toml for crates.io crate double-checked-cell 2.1.0 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce2df9d992c610139f5ccc90e231f5f451023aee93a55d1f558207de4b5b5a1b
[INFO] running `Command { std: "docker" "start" "-a" "ce2df9d992c610139f5ccc90e231f5f451023aee93a55d1f558207de4b5b5a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce2df9d992c610139f5ccc90e231f5f451023aee93a55d1f558207de4b5b5a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2df9d992c610139f5ccc90e231f5f451023aee93a55d1f558207de4b5b5a1b", kill_on_drop: false }`
[INFO] [stdout] ce2df9d992c610139f5ccc90e231f5f451023aee93a55d1f558207de4b5b5a1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08a15cc2c58028e06bf0b83b8496f540d27972bd4891c110e39ac7a8a1fa8062
[INFO] running `Command { std: "docker" "start" "-a" "08a15cc2c58028e06bf0b83b8496f540d27972bd4891c110e39ac7a8a1fa8062", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling double-checked-cell v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "08a15cc2c58028e06bf0b83b8496f540d27972bd4891c110e39ac7a8a1fa8062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08a15cc2c58028e06bf0b83b8496f540d27972bd4891c110e39ac7a8a1fa8062", kill_on_drop: false }`
[INFO] [stdout] 08a15cc2c58028e06bf0b83b8496f540d27972bd4891c110e39ac7a8a1fa8062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0b50688e85f1822f889afe18917db427597b4ae6703b34be6174c19725931cb
[INFO] running `Command { std: "docker" "start" "-a" "e0b50688e85f1822f889afe18917db427597b4ae6703b34be6174c19725931cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling variance v0.1.3
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling scopeguard v0.1.2
[INFO] [stderr]    Compiling scoped-pool v1.0.0
[INFO] [stderr]    Compiling double-checked-cell v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.77s
[INFO] running `Command { std: "docker" "inspect" "e0b50688e85f1822f889afe18917db427597b4ae6703b34be6174c19725931cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0b50688e85f1822f889afe18917db427597b4ae6703b34be6174c19725931cb", kill_on_drop: false }`
[INFO] [stdout] e0b50688e85f1822f889afe18917db427597b4ae6703b34be6174c19725931cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3bf75c7b3d7abcda3617d2ec6377db459a232a91bbc0c953e398cb3aacc7c61e
[INFO] running `Command { std: "docker" "start" "-a" "3bf75c7b3d7abcda3617d2ec6377db459a232a91bbc0c953e398cb3aacc7c61e", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/double_checked_cell-8a6e6fdfa4d0448b)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_drop ... ok
[INFO] [stdout] test tests::test_sync_send ... ok
[INFO] [stdout] test tests::test_threading ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests double-checked-cell
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/lib.rs - (line 94) ... ignored
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::new (line 146) ... ok
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::into_inner (line 316) ... ok
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get_or_init (line 208) ... ok
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get_or_try_init (line 243) ... ok
[INFO] [stdout] test src/lib.rs - (line 70) ... ok
[INFO] [stdout] test src/lib.rs - (line 43) ... ok
[INFO] [stdout] test src/lib.rs - DoubleCheckedCell<T>::get (line 187) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.27s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3bf75c7b3d7abcda3617d2ec6377db459a232a91bbc0c953e398cb3aacc7c61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bf75c7b3d7abcda3617d2ec6377db459a232a91bbc0c953e398cb3aacc7c61e", kill_on_drop: false }`
[INFO] [stdout] 3bf75c7b3d7abcda3617d2ec6377db459a232a91bbc0c953e398cb3aacc7c61e