[INFO] crate half 1.3.0 is already in cache
[INFO] extracting crate half 1.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/half/1.3.0
[INFO] extracting crate half 1.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/half/1.3.0
[INFO] validating manifest of half-1.3.0 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 half-1.3.0 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 half-1.3.0
[INFO] finished frobbing half-1.3.0
[INFO] frobbed toml for half-1.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/half/1.3.0/Cargo.toml
[INFO] started frobbing half-1.3.0
[INFO] finished frobbing half-1.3.0
[INFO] frobbed toml for half-1.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/half/1.3.0/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 half-1.3.0 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/half/1.3.0:/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] 1d634872a2a6c150be4ee933862dafcfb95e4cbf8fd0bb1f8061e11d8755954a
[INFO] running `"docker" "start" "-a" "1d634872a2a6c150be4ee933862dafcfb95e4cbf8fd0bb1f8061e11d8755954a"`
[INFO] [stderr]    Compiling half v1.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "1d634872a2a6c150be4ee933862dafcfb95e4cbf8fd0bb1f8061e11d8755954a"`
[INFO] running `"docker" "rm" "-f" "1d634872a2a6c150be4ee933862dafcfb95e4cbf8fd0bb1f8061e11d8755954a"`
[INFO] [stdout] 1d634872a2a6c150be4ee933862dafcfb95e4cbf8fd0bb1f8061e11d8755954a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/half/1.3.0:/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] 7fef039a2a399871ad56eb4c2f136d35802be711a2ee578327a32f3b24d3b4ba
[INFO] running `"docker" "start" "-a" "7fef039a2a399871ad56eb4c2f136d35802be711a2ee578327a32f3b24d3b4ba"`
[INFO] [stderr]    Compiling half v1.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "7fef039a2a399871ad56eb4c2f136d35802be711a2ee578327a32f3b24d3b4ba"`
[INFO] running `"docker" "rm" "-f" "7fef039a2a399871ad56eb4c2f136d35802be711a2ee578327a32f3b24d3b4ba"`
[INFO] [stdout] 7fef039a2a399871ad56eb4c2f136d35802be711a2ee578327a32f3b24d3b4ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/half/1.3.0:/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] 97105e7540f4c691b038dc9416f3e9c44e2f941578bf75653d27f39fa53eafdd
[INFO] running `"docker" "start" "-a" "97105e7540f4c691b038dc9416f3e9c44e2f941578bf75653d27f39fa53eafdd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/half-39dc201f0bec2f38
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::test_f16_to_f32 ... ok
[INFO] [stdout] test test::test_f16_consts_from_f32 ... ok
[INFO] [stdout] test test::test_f16_to_f64 ... ok
[INFO] [stdout] test test::test_comparisons ... ok
[INFO] [stdout] test test::test_f16_consts_from_f64 ... ok
[INFO] [stdout] test test::test_mutablility ... ok
[INFO] [stdout] test test::test_slice_conversions ... ok
[INFO] [stdout] test test::test_nan_conversion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests half
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - f16::is_sign_positive (line 354) ... ok
[INFO] [stdout] test src/lib.rs - f16::classify (line 291) ... ok
[INFO] [stdout] test src/lib.rs - f16::is_finite (line 238) ... ok
[INFO] [stdout] test src/lib.rs - f16::is_nan (line 196) ... ok
[INFO] [stdout] test src/lib.rs - f16::is_sign_negative (line 376) ... ok
[INFO] [stdout] test src/lib.rs - f16::is_infinite (line 215) ... ok
[INFO] [stdout] test src/lib.rs - f16::is_normal (line 261) ... ok
[INFO] [stdout] test src/lib.rs - f16::signum (line 329) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "97105e7540f4c691b038dc9416f3e9c44e2f941578bf75653d27f39fa53eafdd"`
[INFO] running `"docker" "rm" "-f" "97105e7540f4c691b038dc9416f3e9c44e2f941578bf75653d27f39fa53eafdd"`
[INFO] [stdout] 97105e7540f4c691b038dc9416f3e9c44e2f941578bf75653d27f39fa53eafdd