[INFO] fetching crate event-observer 0.1.0...
[INFO] testing event-observer-0.1.0 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate event-observer 0.1.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate event-observer 0.1.0 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 event-observer 0.1.0
[INFO] finished tweaking crates.io crate event-observer 0.1.0
[INFO] tweaked toml for crates.io crate event-observer 0.1.0 written to /workspace/builds/worker-77/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbccb6ba78b23a964727057de0c188d7f898fd00a07adface6676ef4a7cd32ca
[INFO] running `Command { std: "docker" "start" "-a" "fbccb6ba78b23a964727057de0c188d7f898fd00a07adface6676ef4a7cd32ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbccb6ba78b23a964727057de0c188d7f898fd00a07adface6676ef4a7cd32ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbccb6ba78b23a964727057de0c188d7f898fd00a07adface6676ef4a7cd32ca", kill_on_drop: false }`
[INFO] [stdout] fbccb6ba78b23a964727057de0c188d7f898fd00a07adface6676ef4a7cd32ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a36084a299d9bc3cfdcc9846c56e4ac14b396aa206a186a2d0e8d6ebd44830d
[INFO] running `Command { std: "docker" "start" "-a" "7a36084a299d9bc3cfdcc9846c56e4ac14b396aa206a186a2d0e8d6ebd44830d", kill_on_drop: false }`
[INFO] [stderr]    Compiling event-observer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "7a36084a299d9bc3cfdcc9846c56e4ac14b396aa206a186a2d0e8d6ebd44830d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a36084a299d9bc3cfdcc9846c56e4ac14b396aa206a186a2d0e8d6ebd44830d", kill_on_drop: false }`
[INFO] [stdout] 7a36084a299d9bc3cfdcc9846c56e4ac14b396aa206a186a2d0e8d6ebd44830d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6748fdf04fd8cbc5de3342a6fedd15aa99088e221b7c5678c297d1b09d3ff4bc
[INFO] running `Command { std: "docker" "start" "-a" "6748fdf04fd8cbc5de3342a6fedd15aa99088e221b7c5678c297d1b09d3ff4bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling event-observer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "6748fdf04fd8cbc5de3342a6fedd15aa99088e221b7c5678c297d1b09d3ff4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6748fdf04fd8cbc5de3342a6fedd15aa99088e221b7c5678c297d1b09d3ff4bc", kill_on_drop: false }`
[INFO] [stdout] 6748fdf04fd8cbc5de3342a6fedd15aa99088e221b7c5678c297d1b09d3ff4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc81480f0a161395f6d379f70e4a225bc91a58a4cb279f2b5667b330c3097eef
[INFO] running `Command { std: "docker" "start" "-a" "fc81480f0a161395f6d379f70e4a225bc91a58a4cb279f2b5667b330c3097eef", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/event_observer-58a11d6765ba63f6)
[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 event-observer
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 13.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fc81480f0a161395f6d379f70e4a225bc91a58a4cb279f2b5667b330c3097eef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc81480f0a161395f6d379f70e4a225bc91a58a4cb279f2b5667b330c3097eef", kill_on_drop: false }`
[INFO] [stdout] fc81480f0a161395f6d379f70e4a225bc91a58a4cb279f2b5667b330c3097eef