[INFO] crate blip_buf 0.1.4 is already in cache
[INFO] extracting crate blip_buf 0.1.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/blip_buf/0.1.4
[INFO] extracting crate blip_buf 0.1.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/blip_buf/0.1.4
[INFO] validating manifest of blip_buf-0.1.4 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 blip_buf-0.1.4 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 blip_buf-0.1.4
[INFO] removed path dependency blip_buf-sys from blip_buf-0.1.4
[INFO] finished frobbing blip_buf-0.1.4
[INFO] frobbed toml for blip_buf-0.1.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/blip_buf/0.1.4/Cargo.toml
[INFO] started frobbing blip_buf-0.1.4
[INFO] removed path dependency blip_buf-sys from blip_buf-0.1.4
[INFO] finished frobbing blip_buf-0.1.4
[INFO] frobbed toml for blip_buf-0.1.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/blip_buf/0.1.4/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 blip_buf-0.1.4 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/blip_buf/0.1.4:/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] ac01b62889a8e1819a3859d39059ef7bd237ddfef7ca32b51c035f06bec84149
[INFO] running `"docker" "start" "-a" "ac01b62889a8e1819a3859d39059ef7bd237ddfef7ca32b51c035f06bec84149"`
[INFO] [stderr]    Compiling blip_buf-sys v0.1.3
[INFO] [stderr]    Compiling blip_buf v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "ac01b62889a8e1819a3859d39059ef7bd237ddfef7ca32b51c035f06bec84149"`
[INFO] running `"docker" "rm" "-f" "ac01b62889a8e1819a3859d39059ef7bd237ddfef7ca32b51c035f06bec84149"`
[INFO] [stdout] ac01b62889a8e1819a3859d39059ef7bd237ddfef7ca32b51c035f06bec84149
[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/blip_buf/0.1.4:/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] 1d17ffde12cebe91bd6e8c53c8b35fb928836cc8012a50f288fe2ba61320447a
[INFO] running `"docker" "start" "-a" "1d17ffde12cebe91bd6e8c53c8b35fb928836cc8012a50f288fe2ba61320447a"`
[INFO] [stderr]    Compiling blip_buf v0.1.4 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> examples/sweep.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     std::thread::sleep_ms(1000);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/sweep.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let mut temp = &mut [0i16; 1024];
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "1d17ffde12cebe91bd6e8c53c8b35fb928836cc8012a50f288fe2ba61320447a"`
[INFO] running `"docker" "rm" "-f" "1d17ffde12cebe91bd6e8c53c8b35fb928836cc8012a50f288fe2ba61320447a"`
[INFO] [stdout] 1d17ffde12cebe91bd6e8c53c8b35fb928836cc8012a50f288fe2ba61320447a
[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/blip_buf/0.1.4:/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] db757f64269c1e1d16934534b4d00053bd29245f7480bd61a864e112028f13bb
[INFO] running `"docker" "start" "-a" "db757f64269c1e1d16934534b4d00053bd29245f7480bd61a864e112028f13bb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blip_buf-d8d88cecc2b4d7bd
[INFO] [stderr]    Doc-tests blip_buf
[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 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "db757f64269c1e1d16934534b4d00053bd29245f7480bd61a864e112028f13bb"`
[INFO] running `"docker" "rm" "-f" "db757f64269c1e1d16934534b4d00053bd29245f7480bd61a864e112028f13bb"`
[INFO] [stdout] db757f64269c1e1d16934534b4d00053bd29245f7480bd61a864e112028f13bb