[INFO] crate posix_mq 0.1.3 is already in cache
[INFO] extracting crate posix_mq 0.1.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/posix_mq/0.1.3
[INFO] extracting crate posix_mq 0.1.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/posix_mq/0.1.3
[INFO] validating manifest of posix_mq-0.1.3 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 posix_mq-0.1.3 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 posix_mq-0.1.3
[INFO] finished frobbing posix_mq-0.1.3
[INFO] frobbed toml for posix_mq-0.1.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/posix_mq/0.1.3/Cargo.toml
[INFO] started frobbing posix_mq-0.1.3
[INFO] finished frobbing posix_mq-0.1.3
[INFO] frobbed toml for posix_mq-0.1.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/posix_mq/0.1.3/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing posix_mq-0.1.3 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/posix_mq/0.1.3:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a5e36d9ac467e27b77c0ed2173f190be133deaedf01a509bf3973c6ab4729181
[INFO] running `"docker" "start" "-a" "a5e36d9ac467e27b77c0ed2173f190be133deaedf01a509bf3973c6ab4729181"`
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling posix_mq v0.1.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.67s
[INFO] running `"docker" "inspect" "a5e36d9ac467e27b77c0ed2173f190be133deaedf01a509bf3973c6ab4729181"`
[INFO] running `"docker" "rm" "-f" "a5e36d9ac467e27b77c0ed2173f190be133deaedf01a509bf3973c6ab4729181"`
[INFO] [stdout] a5e36d9ac467e27b77c0ed2173f190be133deaedf01a509bf3973c6ab4729181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/posix_mq/0.1.3:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b817324b2f0ea58bd9ba70aacebae5e0eb8fe5a8284d1befbc01d6ff41af8efe
[INFO] running `"docker" "start" "-a" "b817324b2f0ea58bd9ba70aacebae5e0eb8fe5a8284d1befbc01d6ff41af8efe"`
[INFO] [stderr]    Compiling posix_mq v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/tests.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     queue.delete();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "b817324b2f0ea58bd9ba70aacebae5e0eb8fe5a8284d1befbc01d6ff41af8efe"`
[INFO] running `"docker" "rm" "-f" "b817324b2f0ea58bd9ba70aacebae5e0eb8fe5a8284d1befbc01d6ff41af8efe"`
[INFO] [stdout] b817324b2f0ea58bd9ba70aacebae5e0eb8fe5a8284d1befbc01d6ff41af8efe
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/posix_mq/0.1.3:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6e5e05620b53629081942e6fa4a22544cd46cea1fcbe1b75463b5be22a8a661e
[INFO] running `"docker" "start" "-a" "6e5e05620b53629081942e6fa4a22544cd46cea1fcbe1b75463b5be22a8a661e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/posix_mq-2a5640b346f58cac
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_open_delete ... 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 posix_mq
[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" "6e5e05620b53629081942e6fa4a22544cd46cea1fcbe1b75463b5be22a8a661e"`
[INFO] running `"docker" "rm" "-f" "6e5e05620b53629081942e6fa4a22544cd46cea1fcbe1b75463b5be22a8a661e"`
[INFO] [stdout] 6e5e05620b53629081942e6fa4a22544cd46cea1fcbe1b75463b5be22a8a661e