[INFO] fetching crate wasm-bindgen-backend 0.2.77...
[INFO] testing wasm-bindgen-backend-0.2.77 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wasm-bindgen-backend 0.2.77 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate wasm-bindgen-backend 0.2.77 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 wasm-bindgen-backend 0.2.77
[INFO] finished tweaking crates.io crate wasm-bindgen-backend 0.2.77
[INFO] tweaked toml for crates.io crate wasm-bindgen-backend 0.2.77 written to /workspace/builds/worker-55/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] 0bb36bc7b95c36d7c43e790023433cf7d4342cd85cc4b7494e8993284d8fd427
[INFO] running `Command { std: "docker" "start" "-a" "0bb36bc7b95c36d7c43e790023433cf7d4342cd85cc4b7494e8993284d8fd427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bb36bc7b95c36d7c43e790023433cf7d4342cd85cc4b7494e8993284d8fd427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb36bc7b95c36d7c43e790023433cf7d4342cd85cc4b7494e8993284d8fd427", kill_on_drop: false }`
[INFO] [stdout] 0bb36bc7b95c36d7c43e790023433cf7d4342cd85cc4b7494e8993284d8fd427
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] 54180b17fa0cfc6531be4844288e6f86aa4862ba8ab2329e6d0d221dbfff20e6
[INFO] running `Command { std: "docker" "start" "-a" "54180b17fa0cfc6531be4844288e6f86aa4862ba8ab2329e6d0d221dbfff20e6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.77
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.77 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "54180b17fa0cfc6531be4844288e6f86aa4862ba8ab2329e6d0d221dbfff20e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54180b17fa0cfc6531be4844288e6f86aa4862ba8ab2329e6d0d221dbfff20e6", kill_on_drop: false }`
[INFO] [stdout] 54180b17fa0cfc6531be4844288e6f86aa4862ba8ab2329e6d0d221dbfff20e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] da7f8c646382176e9d7ab5e78b44a8ba2ba0b94285d38f2025bb2ef950f75dfb
[INFO] running `Command { std: "docker" "start" "-a" "da7f8c646382176e9d7ab5e78b44a8ba2ba0b94285d38f2025bb2ef950f75dfb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.77 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `Command { std: "docker" "inspect" "da7f8c646382176e9d7ab5e78b44a8ba2ba0b94285d38f2025bb2ef950f75dfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7f8c646382176e9d7ab5e78b44a8ba2ba0b94285d38f2025bb2ef950f75dfb", kill_on_drop: false }`
[INFO] [stdout] da7f8c646382176e9d7ab5e78b44a8ba2ba0b94285d38f2025bb2ef950f75dfb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] ea29a212c0ee767be7b454caef434de12786af6e98677d6cf6800cdd7c111af2
[INFO] running `Command { std: "docker" "start" "-a" "ea29a212c0ee767be7b454caef434de12786af6e98677d6cf6800cdd7c111af2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wasm_bindgen_backend-21cc337e1481fd53)
[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] [stderr]    Doc-tests wasm-bindgen-backend
[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" "ea29a212c0ee767be7b454caef434de12786af6e98677d6cf6800cdd7c111af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea29a212c0ee767be7b454caef434de12786af6e98677d6cf6800cdd7c111af2", kill_on_drop: false }`
[INFO] [stdout] ea29a212c0ee767be7b454caef434de12786af6e98677d6cf6800cdd7c111af2