[INFO] fetching crate residua-mutf8 0.5.0...
[INFO] testing residua-mutf8-0.5.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate residua-mutf8 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate residua-mutf8 0.5.0 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate residua-mutf8 0.5.0
[INFO] finished tweaking crates.io crate residua-mutf8 0.5.0
[INFO] tweaked toml for crates.io crate residua-mutf8 0.5.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded residua-cesu8 v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb0e81c23b4be3a7ed71b96858bdba7f63422f6131772a2081acaddf631cce0e
[INFO] running `Command { std: "docker" "start" "-a" "bb0e81c23b4be3a7ed71b96858bdba7f63422f6131772a2081acaddf631cce0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb0e81c23b4be3a7ed71b96858bdba7f63422f6131772a2081acaddf631cce0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb0e81c23b4be3a7ed71b96858bdba7f63422f6131772a2081acaddf631cce0e", kill_on_drop: false }`
[INFO] [stdout] bb0e81c23b4be3a7ed71b96858bdba7f63422f6131772a2081acaddf631cce0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f612e2d2f48d42f83ebd21c8d87985427ffbf5931d1187be923bfe909bf1347e
[INFO] running `Command { std: "docker" "start" "-a" "f612e2d2f48d42f83ebd21c8d87985427ffbf5931d1187be923bfe909bf1347e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling residua-cesu8 v0.6.0
[INFO] [stderr]    Compiling residua-mutf8 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "f612e2d2f48d42f83ebd21c8d87985427ffbf5931d1187be923bfe909bf1347e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f612e2d2f48d42f83ebd21c8d87985427ffbf5931d1187be923bfe909bf1347e", kill_on_drop: false }`
[INFO] [stdout] f612e2d2f48d42f83ebd21c8d87985427ffbf5931d1187be923bfe909bf1347e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70557e6f5f25a46f833edd7c8a97b27bc7374eb6fb6d967b41812ae857db59b7
[INFO] running `Command { std: "docker" "start" "-a" "70557e6f5f25a46f833edd7c8a97b27bc7374eb6fb6d967b41812ae857db59b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling residua-mutf8 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "70557e6f5f25a46f833edd7c8a97b27bc7374eb6fb6d967b41812ae857db59b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70557e6f5f25a46f833edd7c8a97b27bc7374eb6fb6d967b41812ae857db59b7", kill_on_drop: false }`
[INFO] [stdout] 70557e6f5f25a46f833edd7c8a97b27bc7374eb6fb6d967b41812ae857db59b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7c1ccffa190ef433aa0c89b0b362dc9e75d2e57bc4d57f34842cfbca7f96e6f2
[INFO] running `Command { std: "docker" "start" "-a" "7c1ccffa190ef433aa0c89b0b362dc9e75d2e57bc4d57f34842cfbca7f96e6f2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutf8-2bcba526ec21e7e2)
[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 mutf8
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - is_valid_mutf8 (line 188) ... ok
[INFO] [stdout] test src/lib.rs - from_mutf8 (line 55) ... ok
[INFO] [stdout] test src/lib.rs - to_mutf8 (line 122) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c1ccffa190ef433aa0c89b0b362dc9e75d2e57bc4d57f34842cfbca7f96e6f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c1ccffa190ef433aa0c89b0b362dc9e75d2e57bc4d57f34842cfbca7f96e6f2", kill_on_drop: false }`
[INFO] [stdout] 7c1ccffa190ef433aa0c89b0b362dc9e75d2e57bc4d57f34842cfbca7f96e6f2