[INFO] crate preftool 0.2.0 is already in cache
[INFO] extracting crate preftool 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/preftool/0.2.0
[INFO] extracting crate preftool 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool/0.2.0
[INFO] validating manifest of preftool-0.2.0 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 preftool-0.2.0 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 preftool-0.2.0
[INFO] finished frobbing preftool-0.2.0
[INFO] frobbed toml for preftool-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/preftool/0.2.0/Cargo.toml
[INFO] started frobbing preftool-0.2.0
[INFO] finished frobbing preftool-0.2.0
[INFO] frobbed toml for preftool-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool/0.2.0/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 preftool-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool/0.2.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1d41c3dddba0c8ce33e94f86e7acb2ce961b3b606f5bb23b1889ef4e4b82344e
[INFO] running `"docker" "start" "-a" "1d41c3dddba0c8ce33e94f86e7acb2ce961b3b606f5bb23b1889ef4e4b82344e"`
[INFO] [stderr]    Compiling preftool v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "1d41c3dddba0c8ce33e94f86e7acb2ce961b3b606f5bb23b1889ef4e4b82344e"`
[INFO] running `"docker" "rm" "-f" "1d41c3dddba0c8ce33e94f86e7acb2ce961b3b606f5bb23b1889ef4e4b82344e"`
[INFO] [stdout] 1d41c3dddba0c8ce33e94f86e7acb2ce961b3b606f5bb23b1889ef4e4b82344e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool/0.2.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9d4463a49ae9cdd12317594890afc969cd4cbdda2b5a828260e1025a1f0f63a0
[INFO] running `"docker" "start" "-a" "9d4463a49ae9cdd12317594890afc969cd4cbdda2b5a828260e1025a1f0f63a0"`
[INFO] [stderr]    Compiling cargo-husky v1.4.0
[INFO] [stderr]    Compiling preftool v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "9d4463a49ae9cdd12317594890afc969cd4cbdda2b5a828260e1025a1f0f63a0"`
[INFO] running `"docker" "rm" "-f" "9d4463a49ae9cdd12317594890afc969cd4cbdda2b5a828260e1025a1f0f63a0"`
[INFO] [stdout] 9d4463a49ae9cdd12317594890afc969cd4cbdda2b5a828260e1025a1f0f63a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/preftool/0.2.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 3d224aeab9900fa8b48e872c09a5f61aebd4bd07c0b84a822a7838ef99edb1b3
[INFO] running `"docker" "start" "-a" "3d224aeab9900fa8b48e872c09a5f61aebd4bd07c0b84a822a7838ef99edb1b3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/preftool-977cc519d6928b25
[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 preftool
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/strings.rs - strings::ConfigKey::parent (line 70) ... ok
[INFO] [stdout] test src/strings.rs - strings::ConfigKey::combine (line 97) ... ok
[INFO] [stdout] test src/strings.rs - strings::ConfigKey::unsafe_from (line 166) ... ok
[INFO] [stdout] test src/strings.rs - strings::ConfigKey::section_key (line 44) ... ok
[INFO] [stdout] test src/strings.rs - strings::ConfigKey::join (line 125) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3d224aeab9900fa8b48e872c09a5f61aebd4bd07c0b84a822a7838ef99edb1b3"`
[INFO] running `"docker" "rm" "-f" "3d224aeab9900fa8b48e872c09a5f61aebd4bd07c0b84a822a7838ef99edb1b3"`
[INFO] [stdout] 3d224aeab9900fa8b48e872c09a5f61aebd4bd07c0b84a822a7838ef99edb1b3