[INFO] fetching crate mtpng 0.3.5...
[INFO] testing mtpng-0.3.5 against 1.59.0 for beta-1.60-1
[INFO] extracting crate mtpng 0.3.5 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate mtpng 0.3.5 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mtpng 0.3.5
[INFO] finished tweaking crates.io crate mtpng 0.3.5
[INFO] tweaked toml for crates.io crate mtpng 0.3.5 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate crates.io crate mtpng 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_fn v0.4.7
[INFO] [stderr]   Downloaded time v0.2.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6a0512b0a8205fa8151c2fe62c77d62542b1427832f261f0a65a5f888bb8d82
[INFO] running `Command { std: "docker" "start" "-a" "e6a0512b0a8205fa8151c2fe62c77d62542b1427832f261f0a65a5f888bb8d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6a0512b0a8205fa8151c2fe62c77d62542b1427832f261f0a65a5f888bb8d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a0512b0a8205fa8151c2fe62c77d62542b1427832f261f0a65a5f888bb8d82", kill_on_drop: false }`
[INFO] [stdout] e6a0512b0a8205fa8151c2fe62c77d62542b1427832f261f0a65a5f888bb8d82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8506bb48356ce6792307b6478dd0e4762bc69d11736a46570c4af57a95756ee
[INFO] running `Command { std: "docker" "start" "-a" "e8506bb48356ce6792307b6478dd0e4762bc69d11736a46570c4af57a95756ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling mtpng v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `Command { std: "docker" "inspect" "e8506bb48356ce6792307b6478dd0e4762bc69d11736a46570c4af57a95756ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8506bb48356ce6792307b6478dd0e4762bc69d11736a46570c4af57a95756ee", kill_on_drop: false }`
[INFO] [stdout] e8506bb48356ce6792307b6478dd0e4762bc69d11736a46570c4af57a95756ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c14fd7a6de983733739a7774ece6816b1b7292c33cc0e7a3583eb30944722fa
[INFO] running `Command { std: "docker" "start" "-a" "9c14fd7a6de983733739a7774ece6816b1b7292c33cc0e7a3583eb30944722fa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mtpng v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.30s
[INFO] running `Command { std: "docker" "inspect" "9c14fd7a6de983733739a7774ece6816b1b7292c33cc0e7a3583eb30944722fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c14fd7a6de983733739a7774ece6816b1b7292c33cc0e7a3583eb30944722fa", kill_on_drop: false }`
[INFO] [stdout] 9c14fd7a6de983733739a7774ece6816b1b7292c33cc0e7a3583eb30944722fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4dc9de671b32463ba0e92116022aaf5a67491057042b1394454ac0749d91d7b7
[INFO] running `Command { std: "docker" "start" "-a" "4dc9de671b32463ba0e92116022aaf5a67491057042b1394454ac0749d91d7b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mtpng-21bbf980b42976fd)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test writer::tests::empty_chunk_works ... ok
[INFO] [stdout] test writer::tests::full_chunk_works ... ok
[INFO] [stdout] test writer::tests::crc_works ... ok
[INFO] [stdout] test filter::tests::it_works_16 ... ok
[INFO] [stdout] test writer::tests::header_works ... ok
[INFO] [stdout] test writer::tests::it_works ... ok
[INFO] [stdout] test filter::tests::it_works ... ok
[INFO] [stdout] test encoder::tests::create_and_state ... ok
[INFO] [stdout] test encoder::tests::test_rows ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.26s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4dc9de671b32463ba0e92116022aaf5a67491057042b1394454ac0749d91d7b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc9de671b32463ba0e92116022aaf5a67491057042b1394454ac0749d91d7b7", kill_on_drop: false }`
[INFO] [stdout] 4dc9de671b32463ba0e92116022aaf5a67491057042b1394454ac0749d91d7b7