[INFO] fetching crate fut_rwlock 0.1.0...
[INFO] testing fut_rwlock-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate fut_rwlock 0.1.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate fut_rwlock 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fut_rwlock 0.1.0
[INFO] finished tweaking crates.io crate fut_rwlock 0.1.0
[INFO] tweaked toml for crates.io crate fut_rwlock 0.1.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f19ea0b169f16c7be1b9ee91af185e280698f677aeb6822c74b8b87a63df995
[INFO] running `Command { std: "docker" "start" "-a" "6f19ea0b169f16c7be1b9ee91af185e280698f677aeb6822c74b8b87a63df995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f19ea0b169f16c7be1b9ee91af185e280698f677aeb6822c74b8b87a63df995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f19ea0b169f16c7be1b9ee91af185e280698f677aeb6822c74b8b87a63df995", kill_on_drop: false }`
[INFO] [stdout] 6f19ea0b169f16c7be1b9ee91af185e280698f677aeb6822c74b8b87a63df995
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45346f3bb050034268866186d69c1bc434f488e8f77565d4aaf3d81468238f21
[INFO] running `Command { std: "docker" "start" "-a" "45346f3bb050034268866186d69c1bc434f488e8f77565d4aaf3d81468238f21", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling fut_rwlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.89s
[INFO] running `Command { std: "docker" "inspect" "45346f3bb050034268866186d69c1bc434f488e8f77565d4aaf3d81468238f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45346f3bb050034268866186d69c1bc434f488e8f77565d4aaf3d81468238f21", kill_on_drop: false }`
[INFO] [stdout] 45346f3bb050034268866186d69c1bc434f488e8f77565d4aaf3d81468238f21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6817de5c78bd55f9b05e70612065bd980cb91c51e6c1496fc4c2ec36a4e709a
[INFO] running `Command { std: "docker" "start" "-a" "d6817de5c78bd55f9b05e70612065bd980cb91c51e6c1496fc4c2ec36a4e709a", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.77
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.77
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.27
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.77
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling async-stream v0.3.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.77
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tokio-stream v0.1.7
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling tokio-test v0.4.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.77
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling js-sys v0.3.54
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.27
[INFO] [stderr]    Compiling web-sys v0.3.54
[INFO] [stderr]    Compiling js-function-promisify v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.27
[INFO] [stderr]    Compiling fut_rwlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.23s
[INFO] running `Command { std: "docker" "inspect" "d6817de5c78bd55f9b05e70612065bd980cb91c51e6c1496fc4c2ec36a4e709a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6817de5c78bd55f9b05e70612065bd980cb91c51e6c1496fc4c2ec36a4e709a", kill_on_drop: false }`
[INFO] [stdout] d6817de5c78bd55f9b05e70612065bd980cb91c51e6c1496fc4c2ec36a4e709a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2a056636457db86f01210bea927ad2b03b478415ea742392ce85bb9506f9dc77
[INFO] running `Command { std: "docker" "start" "-a" "2a056636457db86f01210bea927ad2b03b478415ea742392ce85bb9506f9dc77", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fut_rwlock-318431975f630d14)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::read_multiple ... ok
[INFO] [stdout] test tests::read_prevents_try_write_now_and_allows_try_read_now ... ok
[INFO] [stdout] test tests::read_one ... ok
[INFO] [stdout] test tests::write_mutates_inner_value ... ok
[INFO] [stdout] test tests::write_then_drop_then_read ... ok
[INFO] [stdout] test tests::write_prevents_try_write_now_and_try_read_now ... ok
[INFO] [stdout] test tests::reads_await_write ... ok
[INFO] [stdout] test tests::write_awaits_reads ... ok
[INFO] [stdout] test tests::write_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.20s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fut_rwlock
[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" "2a056636457db86f01210bea927ad2b03b478415ea742392ce85bb9506f9dc77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a056636457db86f01210bea927ad2b03b478415ea742392ce85bb9506f9dc77", kill_on_drop: false }`
[INFO] [stdout] 2a056636457db86f01210bea927ad2b03b478415ea742392ce85bb9506f9dc77