[INFO] fetching crate utf-8 0.7.6...
[INFO] testing utf-8-0.7.6 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate utf-8 0.7.6 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate utf-8 0.7.6 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf-8 0.7.6
[INFO] finished tweaking crates.io crate utf-8 0.7.6
[INFO] tweaked toml for crates.io crate utf-8 0.7.6 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e4d85d24847cf9343e30c1aabf9a19cb1dd7b8aa2f672c5a316a6fc8c377002
[INFO] running `Command { std: "docker" "start" "-a" "7e4d85d24847cf9343e30c1aabf9a19cb1dd7b8aa2f672c5a316a6fc8c377002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e4d85d24847cf9343e30c1aabf9a19cb1dd7b8aa2f672c5a316a6fc8c377002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e4d85d24847cf9343e30c1aabf9a19cb1dd7b8aa2f672c5a316a6fc8c377002", kill_on_drop: false }`
[INFO] [stdout] 7e4d85d24847cf9343e30c1aabf9a19cb1dd7b8aa2f672c5a316a6fc8c377002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5190626618c98f74c996a2dd8a64ec1fb5ca77720cc5a157f73aa231029bdf31
[INFO] running `Command { std: "docker" "start" "-a" "5190626618c98f74c996a2dd8a64ec1fb5ca77720cc5a157f73aa231029bdf31", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf-8 v0.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "5190626618c98f74c996a2dd8a64ec1fb5ca77720cc5a157f73aa231029bdf31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5190626618c98f74c996a2dd8a64ec1fb5ca77720cc5a157f73aa231029bdf31", kill_on_drop: false }`
[INFO] [stdout] 5190626618c98f74c996a2dd8a64ec1fb5ca77720cc5a157f73aa231029bdf31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef9404a2170c92a070853abf1b738d86548dd58cd8f46193471b134d7438af27
[INFO] running `Command { std: "docker" "start" "-a" "ef9404a2170c92a070853abf1b738d86548dd58cd8f46193471b134d7438af27", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf-8 v0.7.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "ef9404a2170c92a070853abf1b738d86548dd58cd8f46193471b134d7438af27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9404a2170c92a070853abf1b738d86548dd58cd8f46193471b134d7438af27", kill_on_drop: false }`
[INFO] [stdout] ef9404a2170c92a070853abf1b738d86548dd58cd8f46193471b134d7438af27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 855573753bf8a49d9b04b768c64af3ec534e7e4f137adf8ed75908932652b83a
[INFO] running `Command { std: "docker" "start" "-a" "855573753bf8a49d9b04b768c64af3ec534e7e4f137adf8ed75908932652b83a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running tests/unit.rs (/opt/rustwide/target/debug/deps/unit-3ed8815636aaf6b9)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_string_from_utf8_lossy ... ok
[INFO] [stdout] test test_str_from_utf8 ... ok
[INFO] [stdout] test test_is_utf8 ... ok
[INFO] [stdout] test test_incremental_decoder ... ok
[INFO] [stderr]    Doc-tests utf8
[INFO] [stdout] test test_bufread_decoder ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.68s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lossy.rs - lossy::LossyDecoder (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "855573753bf8a49d9b04b768c64af3ec534e7e4f137adf8ed75908932652b83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "855573753bf8a49d9b04b768c64af3ec534e7e4f137adf8ed75908932652b83a", kill_on_drop: false }`
[INFO] [stdout] 855573753bf8a49d9b04b768c64af3ec534e7e4f137adf8ed75908932652b83a