[INFO] crate signifix 0.10.0 is already in cache
[INFO] extracting crate signifix 0.10.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/signifix/0.10.0
[INFO] extracting crate signifix 0.10.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/signifix/0.10.0
[INFO] validating manifest of signifix-0.10.0 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 signifix-0.10.0 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 signifix-0.10.0
[INFO] finished frobbing signifix-0.10.0
[INFO] frobbed toml for signifix-0.10.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/signifix/0.10.0/Cargo.toml
[INFO] started frobbing signifix-0.10.0
[INFO] finished frobbing signifix-0.10.0
[INFO] frobbed toml for signifix-0.10.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/signifix/0.10.0/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 signifix-0.10.0 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/signifix/0.10.0:/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] 9dfba51f107d2fbaeb258e8aab916996d492d529b267294a2f531cd69cc7c751
[INFO] running `"docker" "start" "-a" "9dfba51f107d2fbaeb258e8aab916996d492d529b267294a2f531cd69cc7c751"`
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling signifix v0.10.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `"docker" "inspect" "9dfba51f107d2fbaeb258e8aab916996d492d529b267294a2f531cd69cc7c751"`
[INFO] running `"docker" "rm" "-f" "9dfba51f107d2fbaeb258e8aab916996d492d529b267294a2f531cd69cc7c751"`
[INFO] [stdout] 9dfba51f107d2fbaeb258e8aab916996d492d529b267294a2f531cd69cc7c751
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/signifix/0.10.0:/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] 19b0866ab0a1bee672feff6981bd9d304d7eea3af414511b23aeb79c469be9fb
[INFO] running `"docker" "start" "-a" "19b0866ab0a1bee672feff6981bd9d304d7eea3af414511b23aeb79c469be9fb"`
[INFO] [stderr]    Compiling signifix v0.10.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "19b0866ab0a1bee672feff6981bd9d304d7eea3af414511b23aeb79c469be9fb"`
[INFO] running `"docker" "rm" "-f" "19b0866ab0a1bee672feff6981bd9d304d7eea3af414511b23aeb79c469be9fb"`
[INFO] [stdout] 19b0866ab0a1bee672feff6981bd9d304d7eea3af414511b23aeb79c469be9fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/signifix/0.10.0:/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] c69583b5e6c4b9a2e381e96399b2c2f895f3bdcc7efb3445b17d1d7848d58c6c
[INFO] running `"docker" "start" "-a" "c69583b5e6c4b9a2e381e96399b2c2f895f3bdcc7efb3445b17d1d7848d58c6c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/signifix-96d5eb4d5f542413
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test binary::tests::factors_to_symbols ... ok
[INFO] [stdout] test binary::tests::formatting_options ... ok
[INFO] [stdout] test binary::tests::fp_category_safety ... ok
[INFO] [stdout] test binary::tests::ord_implementation ... ok
[INFO] [stdout] test binary::tests::mem_size_of_struct ... ok
[INFO] [stdout] test binary::tests::upper_prefix_bound ... ok
[INFO] [stdout] test binary::tests::lower_prefix_bound ... ok
[INFO] [stdout] test binary::tests::upper_prefix_round ... ok
[INFO] [stdout] test binary::tests::fixed_significance ... ok
[INFO] [stdout] test metric::tests::lower_prefix_bound ... ok
[INFO] [stdout] test metric::tests::factors_to_symbols ... ok
[INFO] [stdout] test metric::tests::formatting_options ... ok
[INFO] [stdout] test metric::tests::fixed_significance ... ok
[INFO] [stdout] test metric::tests::upper_prefix_round ... ok
[INFO] [stdout] test metric::tests::upper_prefix_bound ... ok
[INFO] [stdout] test metric::tests::ord_implementation ... ok
[INFO] [stdout] test metric::tests::mem_size_of_struct ... ok
[INFO] [stdout] test metric::tests::fp_category_safety ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests signifix
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs -  (line 285) ... ok
[INFO] [stdout] test src/lib.rs -  (line 200) ... ok
[INFO] [stdout] test src/lib.rs -  (line 224) ... ok
[INFO] [stdout] test src/lib.rs -  (line 150) ... ok
[INFO] [stdout] test src/lib.rs -  (line 245) ... ok
[INFO] [stdout] test src/lib.rs -  (line 329) ... ok
[INFO] [stdout] test src/lib.rs -  (line 95) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c69583b5e6c4b9a2e381e96399b2c2f895f3bdcc7efb3445b17d1d7848d58c6c"`
[INFO] running `"docker" "rm" "-f" "c69583b5e6c4b9a2e381e96399b2c2f895f3bdcc7efb3445b17d1d7848d58c6c"`
[INFO] [stdout] c69583b5e6c4b9a2e381e96399b2c2f895f3bdcc7efb3445b17d1d7848d58c6c