[INFO] crate histogram-sampler 0.4.0 is already in cache
[INFO] extracting crate histogram-sampler 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/histogram-sampler/0.4.0
[INFO] extracting crate histogram-sampler 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/histogram-sampler/0.4.0
[INFO] validating manifest of histogram-sampler-0.4.0 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 histogram-sampler-0.4.0 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 histogram-sampler-0.4.0
[INFO] finished frobbing histogram-sampler-0.4.0
[INFO] frobbed toml for histogram-sampler-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/histogram-sampler/0.4.0/Cargo.toml
[INFO] started frobbing histogram-sampler-0.4.0
[INFO] finished frobbing histogram-sampler-0.4.0
[INFO] frobbed toml for histogram-sampler-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/histogram-sampler/0.4.0/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 histogram-sampler-0.4.0 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/histogram-sampler/0.4.0:/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] 9794a9c64b73ac61079c43fb896f2a2564cdef47b3e7aa13dcf3c773df9fe988
[INFO] running `"docker" "start" "-a" "9794a9c64b73ac61079c43fb896f2a2564cdef47b3e7aa13dcf3c773df9fe988"`
[INFO] [stderr]    Compiling histogram-sampler v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "9794a9c64b73ac61079c43fb896f2a2564cdef47b3e7aa13dcf3c773df9fe988"`
[INFO] running `"docker" "rm" "-f" "9794a9c64b73ac61079c43fb896f2a2564cdef47b3e7aa13dcf3c773df9fe988"`
[INFO] [stdout] 9794a9c64b73ac61079c43fb896f2a2564cdef47b3e7aa13dcf3c773df9fe988
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/histogram-sampler/0.4.0:/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] 64e1b6dea3e82e86778fda16e5140d294c3ca3a822733b7f1dd47d7a65a5c8cf
[INFO] running `"docker" "start" "-a" "64e1b6dea3e82e86778fda16e5140d294c3ca3a822733b7f1dd47d7a65a5c8cf"`
[INFO] [stderr]    Compiling histogram-sampler v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "64e1b6dea3e82e86778fda16e5140d294c3ca3a822733b7f1dd47d7a65a5c8cf"`
[INFO] running `"docker" "rm" "-f" "64e1b6dea3e82e86778fda16e5140d294c3ca3a822733b7f1dd47d7a65a5c8cf"`
[INFO] [stdout] 64e1b6dea3e82e86778fda16e5140d294c3ca3a822733b7f1dd47d7a65a5c8cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/histogram-sampler/0.4.0:/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] 33c9bcde4b8947b969bcf82b8ba9b266bffd2276ae5df82f03719d9b33a6a912
[INFO] running `"docker" "start" "-a" "33c9bcde4b8947b969bcf82b8ba9b266bffd2276ae5df82f03719d9b33a6a912"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/histogram_sampler-977be92f4bb1d90c
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests histogram-sampler
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 39) ... ok
[INFO] [stdout] test src/lib.rs - Sampler (line 97) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "33c9bcde4b8947b969bcf82b8ba9b266bffd2276ae5df82f03719d9b33a6a912"`
[INFO] running `"docker" "rm" "-f" "33c9bcde4b8947b969bcf82b8ba9b266bffd2276ae5df82f03719d9b33a6a912"`
[INFO] [stdout] 33c9bcde4b8947b969bcf82b8ba9b266bffd2276ae5df82f03719d9b33a6a912