[INFO] fetching crate git-absorb 0.5.0...
[INFO] extracting crate git-absorb 0.5.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/git-absorb/0.5.0
[INFO] extracting crate git-absorb 0.5.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-absorb/0.5.0
[INFO] validating manifest of git-absorb-0.5.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of git-absorb-0.5.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing git-absorb-0.5.0
[INFO] finished frobbing git-absorb-0.5.0
[INFO] frobbed toml for git-absorb-0.5.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/git-absorb/0.5.0/Cargo.toml
[INFO] started frobbing git-absorb-0.5.0
[INFO] finished frobbing git-absorb-0.5.0
[INFO] frobbed toml for git-absorb-0.5.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-absorb/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing git-absorb-0.5.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-absorb/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 7813fabae94067e7277b284d3195aa89ac0056cc6a5d1716abccedd2b9977bcc
[INFO] running `"docker" "start" "-a" "7813fabae94067e7277b284d3195aa89ac0056cc6a5d1716abccedd2b9977bcc"`
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling libgit2-sys v0.8.2
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling slog-async v2.2.0
[INFO] [stderr]    Compiling slog-term v2.3.0
[INFO] [stderr]    Compiling git2 v0.9.2
[INFO] [stderr]    Compiling git-absorb v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `by_old`
[INFO] [stderr]   --> src/owned.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn by_old(&self, path: &[u8]) -> Option<&Patch> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.13s
[INFO] running `"docker" "inspect" "7813fabae94067e7277b284d3195aa89ac0056cc6a5d1716abccedd2b9977bcc"`
[INFO] running `"docker" "rm" "-f" "7813fabae94067e7277b284d3195aa89ac0056cc6a5d1716abccedd2b9977bcc"`
[INFO] [stdout] 7813fabae94067e7277b284d3195aa89ac0056cc6a5d1716abccedd2b9977bcc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-absorb/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 83893d855b03e57693b1d168caff3f591f37143fe6302b1f1e120b6c3c35a585
[INFO] running `"docker" "start" "-a" "83893d855b03e57693b1d168caff3f591f37143fe6302b1f1e120b6c3c35a585"`
[INFO] [stderr]    Compiling git-absorb v0.5.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `by_old`
[INFO] [stderr]   --> src/owned.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn by_old(&self, path: &[u8]) -> Option<&Patch> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.24s
[INFO] running `"docker" "inspect" "83893d855b03e57693b1d168caff3f591f37143fe6302b1f1e120b6c3c35a585"`
[INFO] running `"docker" "rm" "-f" "83893d855b03e57693b1d168caff3f591f37143fe6302b1f1e120b6c3c35a585"`
[INFO] [stdout] 83893d855b03e57693b1d168caff3f591f37143fe6302b1f1e120b6c3c35a585
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/git-absorb/0.5.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 93191cc9e69040da2b61818e43df14f979b296292da4807b79566a70eade1e7c
[INFO] running `"docker" "start" "-a" "93191cc9e69040da2b61818e43df14f979b296292da4807b79566a70eade1e7c"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_absorb-ee766fdd5bad44e9
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test commute::tests::test_commute ... ok
[INFO] [stdout] test commute::tests::test_commute_patch ... ok
[INFO] [stdout] test commute::tests::test_commute_interleave ... ok
[INFO] [stdout] test stack::tests::test_stack_hides_other_branches ... ok
[INFO] [stdout] test stack::tests::test_stack_uses_custom_base ... ok
[INFO] [stdout] test stack::tests::test_stack_stops_at_foreign_author ... ok
[INFO] [stdout] test stack::tests::test_stack_stops_at_configured_limit ... ok
[INFO] [stdout] test stack::tests::test_stack_stops_at_merges ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_absorb-11f63108b8717875
[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 git-absorb
[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" "93191cc9e69040da2b61818e43df14f979b296292da4807b79566a70eade1e7c"`
[INFO] running `"docker" "rm" "-f" "93191cc9e69040da2b61818e43df14f979b296292da4807b79566a70eade1e7c"`
[INFO] [stdout] 93191cc9e69040da2b61818e43df14f979b296292da4807b79566a70eade1e7c