[INFO] fetching crate xcov 0.3.1...
[INFO] testing xcov-0.3.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate xcov 0.3.1 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xcov 0.3.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c255524c3e464f933144cb45c600591448708686a80994c836cfa9fd8e13513
[INFO] running `Command { std: "docker" "start" "-a" "9c255524c3e464f933144cb45c600591448708686a80994c836cfa9fd8e13513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c255524c3e464f933144cb45c600591448708686a80994c836cfa9fd8e13513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c255524c3e464f933144cb45c600591448708686a80994c836cfa9fd8e13513", kill_on_drop: false }`
[INFO] [stdout] 9c255524c3e464f933144cb45c600591448708686a80994c836cfa9fd8e13513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81ab69c0cba8c7ce6740307d77e7455863ca2e96c624d6674474d1ee5f3a1fca
[INFO] running `Command { std: "docker" "start" "-a" "81ab69c0cba8c7ce6740307d77e7455863ca2e96c624d6674474d1ee5f3a1fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling xcov v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "81ab69c0cba8c7ce6740307d77e7455863ca2e96c624d6674474d1ee5f3a1fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ab69c0cba8c7ce6740307d77e7455863ca2e96c624d6674474d1ee5f3a1fca", kill_on_drop: false }`
[INFO] [stdout] 81ab69c0cba8c7ce6740307d77e7455863ca2e96c624d6674474d1ee5f3a1fca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18b27f44bc0cc26c0a48a0f9519f557f432a2e49242ed6bb4d48e44ce6f0fd75
[INFO] running `Command { std: "docker" "start" "-a" "18b27f44bc0cc26c0a48a0f9519f557f432a2e49242ed6bb4d48e44ce6f0fd75", kill_on_drop: false }`
[INFO] [stderr]    Compiling xcov v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "18b27f44bc0cc26c0a48a0f9519f557f432a2e49242ed6bb4d48e44ce6f0fd75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18b27f44bc0cc26c0a48a0f9519f557f432a2e49242ed6bb4d48e44ce6f0fd75", kill_on_drop: false }`
[INFO] [stdout] 18b27f44bc0cc26c0a48a0f9519f557f432a2e49242ed6bb4d48e44ce6f0fd75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6ff61c182cd6ff719fc43650d7ad940344d97aace273e83963c5ffbe0dd2c28e
[INFO] running `Command { std: "docker" "start" "-a" "6ff61c182cd6ff719fc43650d7ad940344d97aace273e83963c5ffbe0dd2c28e", 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-56d2fa6ba51f90c6)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::solve_knuth_example ... ok
[INFO] [stdout] test tests::test_dlx_new ... ok
[INFO] [stdout] test tests::test_dlx_knuth_example ... ok
[INFO] [stdout] test tests::test_dlx_empty ... 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-ca94ee2c95cdd539)
[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 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6ff61c182cd6ff719fc43650d7ad940344d97aace273e83963c5ffbe0dd2c28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ff61c182cd6ff719fc43650d7ad940344d97aace273e83963c5ffbe0dd2c28e", kill_on_drop: false }`
[INFO] [stdout] 6ff61c182cd6ff719fc43650d7ad940344d97aace273e83963c5ffbe0dd2c28e