[INFO] crate bit_collection 0.2.3 is already in cache
[INFO] extracting crate bit_collection 0.2.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/bit_collection/0.2.3
[INFO] extracting crate bit_collection 0.2.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bit_collection/0.2.3
[INFO] validating manifest of bit_collection-0.2.3 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 bit_collection-0.2.3 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 bit_collection-0.2.3
[INFO] finished frobbing bit_collection-0.2.3
[INFO] frobbed toml for bit_collection-0.2.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/bit_collection/0.2.3/Cargo.toml
[INFO] started frobbing bit_collection-0.2.3
[INFO] finished frobbing bit_collection-0.2.3
[INFO] frobbed toml for bit_collection-0.2.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/bit_collection/0.2.3/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 bit_collection-0.2.3 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bit_collection/0.2.3:/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] 6f1232a1c7f5333e74a16af1656549896bd556a0998a09e517d6a4ac6351ebfb
[INFO] running `"docker" "start" "-a" "6f1232a1c7f5333e74a16af1656549896bd556a0998a09e517d6a4ac6351ebfb"`
[INFO] [stderr]    Compiling bit_collection_derive v0.2.2
[INFO] [stderr]    Compiling bit_collection v0.2.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "6f1232a1c7f5333e74a16af1656549896bd556a0998a09e517d6a4ac6351ebfb"`
[INFO] running `"docker" "rm" "-f" "6f1232a1c7f5333e74a16af1656549896bd556a0998a09e517d6a4ac6351ebfb"`
[INFO] [stdout] 6f1232a1c7f5333e74a16af1656549896bd556a0998a09e517d6a4ac6351ebfb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bit_collection/0.2.3:/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] 5ca8f55593c9d78237b8aa4f7002445fea64898f5a4199d417368dfe3eab2796
[INFO] running `"docker" "start" "-a" "5ca8f55593c9d78237b8aa4f7002445fea64898f5a4199d417368dfe3eab2796"`
[INFO] [stderr]    Compiling bit_collection v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/quantity.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/derive.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "5ca8f55593c9d78237b8aa4f7002445fea64898f5a4199d417368dfe3eab2796"`
[INFO] running `"docker" "rm" "-f" "5ca8f55593c9d78237b8aa4f7002445fea64898f5a4199d417368dfe3eab2796"`
[INFO] [stdout] 5ca8f55593c9d78237b8aa4f7002445fea64898f5a4199d417368dfe3eab2796
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/bit_collection/0.2.3:/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] 4c55e255f1934326f9cd2271e832980e1acb2f08d4e9ebcf284f31b7525219e6
[INFO] running `"docker" "start" "-a" "4c55e255f1934326f9cd2271e832980e1acb2f08d4e9ebcf284f31b7525219e6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bit_collection-095dd8b81e94944a
[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]      Running /opt/crater/target/debug/deps/derive-07a4ba15837a3105
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test bits16_enum ... ok
[INFO] [stdout] test bits16_struct ... ok
[INFO] [stdout] test bits4_enum ... ok
[INFO] [stdout] test bits4_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/quantity-8f7d3a4f0db11cea
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test quantity ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bit_collection
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs -  (line 30) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 45) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 57) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 65) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 15) ... ok
[INFO] [stdout] test src/lib.rs -  (line 77) ... ok
[INFO] [stdout] test src/lib.rs -  (line 92) ... ok
[INFO] [stdout] test src/lib.rs - BitCollection::as_iter (line 219) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4c55e255f1934326f9cd2271e832980e1acb2f08d4e9ebcf284f31b7525219e6"`
[INFO] running `"docker" "rm" "-f" "4c55e255f1934326f9cd2271e832980e1acb2f08d4e9ebcf284f31b7525219e6"`
[INFO] [stdout] 4c55e255f1934326f9cd2271e832980e1acb2f08d4e9ebcf284f31b7525219e6