[INFO] crate mtpng 0.3.1 is already in cache
[INFO] testing mtpng-0.3.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate mtpng 0.3.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate mtpng 0.3.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mtpng 0.3.1
[INFO] finished tweaking crates.io crate mtpng 0.3.1
[INFO] tweaked toml for crates.io crate mtpng 0.3.1 written to work/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate mtpng 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 47555588b132941836c1fa6334686f17515d5fa7f5ecea08333818046bcda1b9
[INFO] running `"docker" "start" "-a" "47555588b132941836c1fa6334686f17515d5fa7f5ecea08333818046bcda1b9"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling mtpng v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `"docker" "inspect" "47555588b132941836c1fa6334686f17515d5fa7f5ecea08333818046bcda1b9"`
[INFO] running `"docker" "rm" "-f" "47555588b132941836c1fa6334686f17515d5fa7f5ecea08333818046bcda1b9"`
[INFO] [stdout] 47555588b132941836c1fa6334686f17515d5fa7f5ecea08333818046bcda1b9
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 84cf6485bb95dbec7739da6e492e2730f83d512b79abc535dfefee0a40d26072
[INFO] running `"docker" "start" "-a" "84cf6485bb95dbec7739da6e492e2730f83d512b79abc535dfefee0a40d26072"`
[INFO] [stderr]    Compiling mtpng v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "84cf6485bb95dbec7739da6e492e2730f83d512b79abc535dfefee0a40d26072"`
[INFO] running `"docker" "rm" "-f" "84cf6485bb95dbec7739da6e492e2730f83d512b79abc535dfefee0a40d26072"`
[INFO] [stdout] 84cf6485bb95dbec7739da6e492e2730f83d512b79abc535dfefee0a40d26072
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] de24a1fbfc2d1391edeebca24f2cb9238ec40343193154268e435d91d844225e
[INFO] running `"docker" "start" "-a" "de24a1fbfc2d1391edeebca24f2cb9238ec40343193154268e435d91d844225e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mtpng-be08a095e9819aaa
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test writer::tests::crc_works ... ok
[INFO] [stdout] test writer::tests::full_chunk_works ... ok
[INFO] [stdout] test writer::tests::empty_chunk_works ... ok
[INFO] [stdout] test writer::tests::header_works ... ok
[INFO] [stdout] test writer::tests::it_works ... ok
[INFO] [stdout] test filter::tests::it_works_16 ... ok
[INFO] [stdout] test filter::tests::it_works ... ok
[INFO] [stdout] test encoder::tests::test_rows ... ok
[INFO] [stdout] test encoder::tests::create_and_state ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mtpng
[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" "de24a1fbfc2d1391edeebca24f2cb9238ec40343193154268e435d91d844225e"`
[INFO] running `"docker" "rm" "-f" "de24a1fbfc2d1391edeebca24f2cb9238ec40343193154268e435d91d844225e"`
[INFO] [stdout] de24a1fbfc2d1391edeebca24f2cb9238ec40343193154268e435d91d844225e