[INFO] updating cached repository https://github.com/Mcat12/backtrack
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9a37c73ecf8ae1343a37bfea66982263d88bb0e4
[INFO] testing Mcat12/backtrack against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FMcat12%2Fbacktrack" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mcat12/backtrack on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Mcat12/backtrack
[INFO] finished tweaking git repo https://github.com/Mcat12/backtrack
[INFO] tweaked toml for git repo https://github.com/Mcat12/backtrack written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Mcat12/backtrack already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] adde2ddbb9ae5ec0072f4dc13c7c7deb0164bdd48c728ed649f88a00180b1b3d
[INFO] running `"docker" "start" "-a" "adde2ddbb9ae5ec0072f4dc13c7c7deb0164bdd48c728ed649f88a00180b1b3d"`
[INFO] [stderr]    Compiling backtrack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `"docker" "inspect" "adde2ddbb9ae5ec0072f4dc13c7c7deb0164bdd48c728ed649f88a00180b1b3d"`
[INFO] running `"docker" "rm" "-f" "adde2ddbb9ae5ec0072f4dc13c7c7deb0164bdd48c728ed649f88a00180b1b3d"`
[INFO] [stdout] adde2ddbb9ae5ec0072f4dc13c7c7deb0164bdd48c728ed649f88a00180b1b3d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3e2aef0cac7222f097788c805ec7dfcae1a51ed9c18c89c4fa2ee0d2a86a56cc
[INFO] running `"docker" "start" "-a" "3e2aef0cac7222f097788c805ec7dfcae1a51ed9c18c89c4fa2ee0d2a86a56cc"`
[INFO] [stderr]    Compiling serde v1.0.81
[INFO] [stderr]    Compiling criterion-plot v0.2.5
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.81
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling criterion-stats v0.2.5
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling simplelog v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling csv v1.0.2
[INFO] [stderr]    Compiling handlebars v0.32.4
[INFO] [stderr]    Compiling criterion v0.2.5
[INFO] [stderr]    Compiling backtrack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.49s
[INFO] running `"docker" "inspect" "3e2aef0cac7222f097788c805ec7dfcae1a51ed9c18c89c4fa2ee0d2a86a56cc"`
[INFO] running `"docker" "rm" "-f" "3e2aef0cac7222f097788c805ec7dfcae1a51ed9c18c89c4fa2ee0d2a86a56cc"`
[INFO] [stdout] 3e2aef0cac7222f097788c805ec7dfcae1a51ed9c18c89c4fa2ee0d2a86a56cc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] e782b12100490d31960c61e041898a3a6c3ec3c0e45482b7c22a4717583fb651
[INFO] running `"docker" "start" "-a" "e782b12100490d31960c61e041898a3a6c3ec3c0e45482b7c22a4717583fb651"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/backtrack-7853197baef7c212
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test queen::tests::is_valid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/8queens-898020f9beccc4a3
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/trunk_pack-bad6b027ee0c01f8
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backtrack
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e782b12100490d31960c61e041898a3a6c3ec3c0e45482b7c22a4717583fb651"`
[INFO] running `"docker" "rm" "-f" "e782b12100490d31960c61e041898a3a6c3ec3c0e45482b7c22a4717583fb651"`
[INFO] [stdout] e782b12100490d31960c61e041898a3a6c3ec3c0e45482b7c22a4717583fb651