[INFO] crate git-absorb 0.5.0 is already in cache
[INFO] extracting crate git-absorb 0.5.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/git-absorb/0.5.0
[INFO] extracting crate git-absorb 0.5.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/git-absorb/0.5.0
[INFO] validating manifest of git-absorb-0.5.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of git-absorb-0.5.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/git-absorb/0.5.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing git-absorb-0.5.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 1987203518fa92e00c5e69a4cb98410c30124dc48536730ad2243f821f202e23
[INFO] running `"docker" "start" "-a" "1987203518fa92e00c5e69a4cb98410c30124dc48536730ad2243f821f202e23"`
[INFO] [stderr]    Compiling slog v2.1.1
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling git2 v0.9.2
[INFO] [stderr]    Compiling slog-term v2.3.0
[INFO] [stderr]    Compiling slog-async v2.2.0
[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 20.16s
[INFO] running `"docker" "inspect" "1987203518fa92e00c5e69a4cb98410c30124dc48536730ad2243f821f202e23"`
[INFO] running `"docker" "rm" "-f" "1987203518fa92e00c5e69a4cb98410c30124dc48536730ad2243f821f202e23"`
[INFO] [stdout] 1987203518fa92e00c5e69a4cb98410c30124dc48536730ad2243f821f202e23
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c3b6e42044d866c550c08dd76dba09da5fb45892a8a346fa313bf4cff679596e
[INFO] running `"docker" "start" "-a" "c3b6e42044d866c550c08dd76dba09da5fb45892a8a346fa313bf4cff679596e"`
[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 1.82s
[INFO] running `"docker" "inspect" "c3b6e42044d866c550c08dd76dba09da5fb45892a8a346fa313bf4cff679596e"`
[INFO] running `"docker" "rm" "-f" "c3b6e42044d866c550c08dd76dba09da5fb45892a8a346fa313bf4cff679596e"`
[INFO] [stdout] c3b6e42044d866c550c08dd76dba09da5fb45892a8a346fa313bf4cff679596e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b9f4b62435b64c31428dc666c33f85f7f68da0d71bc5180062e815603889e36e
[INFO] running `"docker" "start" "-a" "b9f4b62435b64c31428dc666c33f85f7f68da0d71bc5180062e815603889e36e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_absorb-7ddd03bd04c77d42
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test commute::tests::test_commute ... ok
[INFO] [stdout] test commute::tests::test_commute_interleave ... ok
[INFO] [stdout] test commute::tests::test_commute_patch ... 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_merges ... ok
[INFO] [stdout] test stack::tests::test_stack_stops_at_configured_limit ... 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-0f112463bc39ffe9
[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" "b9f4b62435b64c31428dc666c33f85f7f68da0d71bc5180062e815603889e36e"`
[INFO] running `"docker" "rm" "-f" "b9f4b62435b64c31428dc666c33f85f7f68da0d71bc5180062e815603889e36e"`
[INFO] [stdout] b9f4b62435b64c31428dc666c33f85f7f68da0d71bc5180062e815603889e36e