[INFO] crate hashcow 0.2.0 is already in cache
[INFO] extracting crate hashcow 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/hashcow/0.2.0
[INFO] extracting crate hashcow 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hashcow/0.2.0
[INFO] validating manifest of hashcow-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 hashcow-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 hashcow-0.2.0
[INFO] finished frobbing hashcow-0.2.0
[INFO] frobbed toml for hashcow-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/hashcow/0.2.0/Cargo.toml
[INFO] started frobbing hashcow-0.2.0
[INFO] finished frobbing hashcow-0.2.0
[INFO] frobbed toml for hashcow-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/hashcow/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 hashcow-0.2.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/hashcow/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e25a8e0b9aa734f3d8554f053a267ae0ab7dd7155d5aa528485da793440db461
[INFO] running `"docker" "start" "-a" "e25a8e0b9aa734f3d8554f053a267ae0ab7dd7155d5aa528485da793440db461"`
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling hashcow v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `"docker" "inspect" "e25a8e0b9aa734f3d8554f053a267ae0ab7dd7155d5aa528485da793440db461"`
[INFO] running `"docker" "rm" "-f" "e25a8e0b9aa734f3d8554f053a267ae0ab7dd7155d5aa528485da793440db461"`
[INFO] [stdout] e25a8e0b9aa734f3d8554f053a267ae0ab7dd7155d5aa528485da793440db461
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/hashcow/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f4d91abf7d907bd39329f5f499f80e5c2844d7d0cfad0242b50b3b581fa4b90d
[INFO] running `"docker" "start" "-a" "f4d91abf7d907bd39329f5f499f80e5c2844d7d0cfad0242b50b3b581fa4b90d"`
[INFO] [stderr]    Compiling hashcow v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/lib.rs:449:9
[INFO] [stderr]     |
[INFO] [stderr] 449 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "f4d91abf7d907bd39329f5f499f80e5c2844d7d0cfad0242b50b3b581fa4b90d"`
[INFO] running `"docker" "rm" "-f" "f4d91abf7d907bd39329f5f499f80e5c2844d7d0cfad0242b50b3b581fa4b90d"`
[INFO] [stdout] f4d91abf7d907bd39329f5f499f80e5c2844d7d0cfad0242b50b3b581fa4b90d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/hashcow/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] d69f761ebfb74e2d036f37a624a8c5cafbae39f5dedc9d2c7a73bdbfbcf5dad4
[INFO] running `"docker" "start" "-a" "d69f761ebfb74e2d036f37a624a8c5cafbae39f5dedc9d2c7a73bdbfbcf5dad4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hashcow-74ede3e0ecbde3af
[INFO] [stderr]    Doc-tests hashcow
[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] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/lib.rs - CowHashMap::get_mut (line 269) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::capacity (line 108) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::insert_owned (line 164) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::insert_borrowed (line 208) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::insert_borrowed_owned_key (line 230) ... ok
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::get (line 246) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::borrow_fields (line 360) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::insert_owned_borrowed_key (line 186) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::new (line 75) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::iter (line 403) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::with_capacity (line 90) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::is_empty (line 141) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::remove (line 425) ... ok
[INFO] [stdout] test src/lib.rs - CowHashMap::keys (line 297) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d69f761ebfb74e2d036f37a624a8c5cafbae39f5dedc9d2c7a73bdbfbcf5dad4"`
[INFO] running `"docker" "rm" "-f" "d69f761ebfb74e2d036f37a624a8c5cafbae39f5dedc9d2c7a73bdbfbcf5dad4"`
[INFO] [stdout] d69f761ebfb74e2d036f37a624a8c5cafbae39f5dedc9d2c7a73bdbfbcf5dad4