[INFO] fetching crate xcov 0.3.1...
[INFO] testing xcov-0.3.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate xcov 0.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate xcov 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate xcov 0.3.1
[INFO] tweaked toml for crates.io crate xcov 0.3.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xcov 0.3.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xcov 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dd115f82ab455d08d7faaab09a43afa15d5733311f6040306e0bd4c0d69a69c
[INFO] running `Command { std: "docker" "start" "-a" "0dd115f82ab455d08d7faaab09a43afa15d5733311f6040306e0bd4c0d69a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dd115f82ab455d08d7faaab09a43afa15d5733311f6040306e0bd4c0d69a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dd115f82ab455d08d7faaab09a43afa15d5733311f6040306e0bd4c0d69a69c", kill_on_drop: false }`
[INFO] [stdout] 0dd115f82ab455d08d7faaab09a43afa15d5733311f6040306e0bd4c0d69a69c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e3950a4a89ee874ec2f383e71cfc710520729929779cbeadf37c0da76a40816
[INFO] running `Command { std: "docker" "start" "-a" "7e3950a4a89ee874ec2f383e71cfc710520729929779cbeadf37c0da76a40816", kill_on_drop: false }`
[INFO] [stderr]    Compiling xcov v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "7e3950a4a89ee874ec2f383e71cfc710520729929779cbeadf37c0da76a40816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e3950a4a89ee874ec2f383e71cfc710520729929779cbeadf37c0da76a40816", kill_on_drop: false }`
[INFO] [stdout] 7e3950a4a89ee874ec2f383e71cfc710520729929779cbeadf37c0da76a40816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f02c92117aaf66b829e98e23148ea3b7e075d6eb7cf94364c522226dbf74f0f5
[INFO] running `Command { std: "docker" "start" "-a" "f02c92117aaf66b829e98e23148ea3b7e075d6eb7cf94364c522226dbf74f0f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling xcov v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "f02c92117aaf66b829e98e23148ea3b7e075d6eb7cf94364c522226dbf74f0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02c92117aaf66b829e98e23148ea3b7e075d6eb7cf94364c522226dbf74f0f5", kill_on_drop: false }`
[INFO] [stdout] f02c92117aaf66b829e98e23148ea3b7e075d6eb7cf94364c522226dbf74f0f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46f630f2f1c9f74a503b47a496016d31501f32568ac08956ad285c0325224423
[INFO] running `Command { std: "docker" "start" "-a" "46f630f2f1c9f74a503b47a496016d31501f32568ac08956ad285c0325224423", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xcov-e559b7038cf58e28)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::solve_knuth_example ... ok
[INFO] [stdout] test tests::test_dlx_empty ... ok
[INFO] [stdout] test tests::test_dlx_new ... ok
[INFO] [stdout] test tests::test_dlx_knuth_example ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests examples/sudoku.rs (/opt/rustwide/target/debug/examples/sudoku-1a87de8a1e8170a2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::puzzle1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xcov
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46f630f2f1c9f74a503b47a496016d31501f32568ac08956ad285c0325224423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f630f2f1c9f74a503b47a496016d31501f32568ac08956ad285c0325224423", kill_on_drop: false }`
[INFO] [stdout] 46f630f2f1c9f74a503b47a496016d31501f32568ac08956ad285c0325224423