[INFO] updating cached repository https://github.com/Tomboyo/mastermind-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Tomboyo/mastermind-rust
[INFO] [stderr]  - [deleted]         (none)     -> suboptimal-eager-skip
[INFO] [stderr]    62a2bdf..661e909  master     -> master
[INFO] [stderr]  * [new tag]         4-sometimes-guess-only-answers -> 4-sometimes-guess-only-answers
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 661e9094d94f411f7a48668425128f79ab36dd74
[INFO] testing Tomboyo/mastermind-rust against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tomboyo/mastermind-rust on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] finished tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] tweaked toml for git repo https://github.com/Tomboyo/mastermind-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Tomboyo/mastermind-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] 0f0289d46669f609ad9def7775a8d208fbbc19ea9cfcada53c0f912365f59cff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "0f0289d46669f609ad9def7775a8d208fbbc19ea9cfcada53c0f912365f59cff"`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.18s
[INFO] running `"docker" "inspect" "0f0289d46669f609ad9def7775a8d208fbbc19ea9cfcada53c0f912365f59cff"`
[INFO] running `"docker" "rm" "-f" "0f0289d46669f609ad9def7775a8d208fbbc19ea9cfcada53c0f912365f59cff"`
[INFO] [stdout] 0f0289d46669f609ad9def7775a8d208fbbc19ea9cfcada53c0f912365f59cff
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8037e632c286273b6cbc9df5a4f8669dc80660f704035c2da7016d28f54eeba5
[INFO] running `"docker" "start" "-a" "8037e632c286273b6cbc9df5a4f8669dc80660f704035c2da7016d28f54eeba5"`
[INFO] [stderr]    Compiling mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `"docker" "inspect" "8037e632c286273b6cbc9df5a4f8669dc80660f704035c2da7016d28f54eeba5"`
[INFO] running `"docker" "rm" "-f" "8037e632c286273b6cbc9df5a4f8669dc80660f704035c2da7016d28f54eeba5"`
[INFO] [stdout] 8037e632c286273b6cbc9df5a4f8669dc80660f704035c2da7016d28f54eeba5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad172c8429e97c39bdb5f7fe2655419859cf8d639d531298fc61d1321bfc003a
[INFO] running `"docker" "start" "-a" "ad172c8429e97c39bdb5f7fe2655419859cf8d639d531298fc61d1321bfc003a"`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mastermind-8515ff2cece90f43
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test code::tests::test_compare_misplace_exhaustion ... ok
[INFO] [stdout] test code::tests::test_compare_precedence ... ok
[INFO] [stdout] test code::tests::test_compare_none_correct ... ok
[INFO] [stdout] test code::tests::test_universe ... ok
[INFO] [stdout] test code::tests::test_compare_all_correct ... ok
[INFO] [stdout] test tree::morphology::tests::test_isomorph_cache_is_new_morph ... ok
[INFO] [stdout] test tree::morphology::tests::test_answers_by_response ... ok
[INFO] [stdout] test code::tests::test_compare_misplaced_digits ... ok
[INFO] [stdout] test tree::rank::tests::test_by_depth_minimum_value ... ok
[INFO] [stdout] test tree::tests::test_generate ... ok
[INFO] [stdout] test tree::rank::tests::test_by_depth ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_3 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_4_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_2_4 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_3 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_5_2 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_4_3 ... ok
[INFO] [stdout] test tree::tests::test_generate_exhaustively_3_4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ad172c8429e97c39bdb5f7fe2655419859cf8d639d531298fc61d1321bfc003a"`
[INFO] running `"docker" "rm" "-f" "ad172c8429e97c39bdb5f7fe2655419859cf8d639d531298fc61d1321bfc003a"`
[INFO] [stdout] ad172c8429e97c39bdb5f7fe2655419859cf8d639d531298fc61d1321bfc003a