[INFO] fetching crate fut_rwlock 0.1.0...
[INFO] testing fut_rwlock-0.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate fut_rwlock 0.1.0 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fut_rwlock 0.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 78 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.2.16 (available: v0.3.3)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_chacha v0.3.1 (available: v0.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d89e8de93c7ed8b5fa57a3ac18e79d2860a30e4b54e52b3c9ecb4ef25cbd1b88
[INFO] running `Command { std: "docker" "start" "-a" "d89e8de93c7ed8b5fa57a3ac18e79d2860a30e4b54e52b3c9ecb4ef25cbd1b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d89e8de93c7ed8b5fa57a3ac18e79d2860a30e4b54e52b3c9ecb4ef25cbd1b88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d89e8de93c7ed8b5fa57a3ac18e79d2860a30e4b54e52b3c9ecb4ef25cbd1b88", kill_on_drop: false }`
[INFO] [stdout] d89e8de93c7ed8b5fa57a3ac18e79d2860a30e4b54e52b3c9ecb4ef25cbd1b88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 097a1053d5960549ed5cc92cad811278f0cb806c9850426b946358e9cb676d0f
[INFO] running `Command { std: "docker" "start" "-a" "097a1053d5960549ed5cc92cad811278f0cb806c9850426b946358e9cb676d0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling fut_rwlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.44s
[INFO] running `Command { std: "docker" "inspect" "097a1053d5960549ed5cc92cad811278f0cb806c9850426b946358e9cb676d0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "097a1053d5960549ed5cc92cad811278f0cb806c9850426b946358e9cb676d0f", kill_on_drop: false }`
[INFO] [stdout] 097a1053d5960549ed5cc92cad811278f0cb806c9850426b946358e9cb676d0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea655597c2f5b85449acb04bb884a69ffe6bbd811b83c327b191cac64aba8260
[INFO] running `Command { std: "docker" "start" "-a" "ea655597c2f5b85449acb04bb884a69ffe6bbd811b83c327b191cac64aba8260", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.104
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling wasm-bindgen v0.2.104
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.104
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.54
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.104
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.104
[INFO] [stderr]    Compiling js-sys v0.3.81
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling fut_rwlock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.54
[INFO] [stderr]    Compiling web-sys v0.3.81
[INFO] [stderr]    Compiling js-function-promisify v0.2.1
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.54
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 19.13s
[INFO] running `Command { std: "docker" "inspect" "ea655597c2f5b85449acb04bb884a69ffe6bbd811b83c327b191cac64aba8260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea655597c2f5b85449acb04bb884a69ffe6bbd811b83c327b191cac64aba8260", kill_on_drop: false }`
[INFO] [stdout] ea655597c2f5b85449acb04bb884a69ffe6bbd811b83c327b191cac64aba8260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8586c2e5149836ecb82a578c945ef32f52f9fb8e2d96a757cd938fd89ea06ae9
[INFO] running `Command { std: "docker" "start" "-a" "8586c2e5149836ecb82a578c945ef32f52f9fb8e2d96a757cd938fd89ea06ae9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fut_rwlock-d1af3f6c6a3e7f52)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::read_multiple ... ok
[INFO] [stdout] test tests::read_one ... ok
[INFO] [stdout] test tests::read_prevents_try_write_now_and_allows_try_read_now ... ok
[INFO] [stdout] test tests::write_prevents_try_write_now_and_try_read_now ... ok
[INFO] [stdout] test tests::write_then_drop_then_read ... ok
[INFO] [stdout] test tests::write_mutates_inner_value ... ok
[INFO] [stdout] test tests::write_awaits_reads ... ok
[INFO] [stdout] test tests::reads_await_write ... 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" "8586c2e5149836ecb82a578c945ef32f52f9fb8e2d96a757cd938fd89ea06ae9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8586c2e5149836ecb82a578c945ef32f52f9fb8e2d96a757cd938fd89ea06ae9", kill_on_drop: false }`
[INFO] [stdout] 8586c2e5149836ecb82a578c945ef32f52f9fb8e2d96a757cd938fd89ea06ae9