[INFO] fetching crate nexers 0.1.2...
[INFO] testing nexers-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nexers 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate nexers 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nexers 0.1.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate nexers 0.1.2
[INFO] tweaked toml for crates.io crate nexers 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate nexers 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-timer v0.2.12
[INFO] [stderr]   Downloaded smallvec v1.1.0
[INFO] [stderr]   Downloaded publicsuffix v1.5.4
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.17
[INFO] [stderr]   Downloaded lock_api v0.3.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.0
[INFO] [stderr]   Downloaded fs_extra v1.1.0
[INFO] [stderr]   Downloaded insideout v0.2.0
[INFO] [stderr]   Downloaded rusqlite v0.21.0
[INFO] [stderr]   Downloaded tokio-executor v0.1.9
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.5
[INFO] [stderr]   Downloaded tokio-reactor v0.1.11
[INFO] [stderr]   Downloaded unicode-normalization v0.1.11
[INFO] [stderr]   Downloaded libsqlite3-sys v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50c1ea9492cb7c1eefd6197b9bd36a3fbf23c86c3997860e9b5106b7be4e8196
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50c1ea9492cb7c1eefd6197b9bd36a3fbf23c86c3997860e9b5106b7be4e8196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50c1ea9492cb7c1eefd6197b9bd36a3fbf23c86c3997860e9b5106b7be4e8196", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50c1ea9492cb7c1eefd6197b9bd36a3fbf23c86c3997860e9b5106b7be4e8196", kill_on_drop: false }`
[INFO] [stdout] 50c1ea9492cb7c1eefd6197b9bd36a3fbf23c86c3997860e9b5106b7be4e8196
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d8174532c7d09c01e1dca671809e9c1c8d276abc40a51ad930c153d3046220e1
[INFO] running `Command { std: "docker" "start" "-a" "d8174532c7d09c01e1dca671809e9c1c8d276abc40a51ad930c153d3046220e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling insideout v0.2.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.0
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling rusqlite v0.21.0
[INFO] [stderr]    Compiling nexers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.21s
[INFO] running `Command { std: "docker" "inspect" "d8174532c7d09c01e1dca671809e9c1c8d276abc40a51ad930c153d3046220e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8174532c7d09c01e1dca671809e9c1c8d276abc40a51ad930c153d3046220e1", kill_on_drop: false }`
[INFO] [stdout] d8174532c7d09c01e1dca671809e9c1c8d276abc40a51ad930c153d3046220e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a91813d617646b914d774291efa0eb23566c3e1e6b663d5da4f8cd7c0e14f0a6
[INFO] running `Command { std: "docker" "start" "-a" "a91813d617646b914d774291efa0eb23566c3e1e6b663d5da4f8cd7c0e14f0a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling nexers v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "a91813d617646b914d774291efa0eb23566c3e1e6b663d5da4f8cd7c0e14f0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a91813d617646b914d774291efa0eb23566c3e1e6b663d5da4f8cd7c0e14f0a6", kill_on_drop: false }`
[INFO] [stdout] a91813d617646b914d774291efa0eb23566c3e1e6b663d5da4f8cd7c0e14f0a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 65568a513410ad25f49da20bbf1dbb6dbf02cf090c4f6402ed388d2a691b9748
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "65568a513410ad25f49da20bbf1dbb6dbf02cf090c4f6402ed388d2a691b9748", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nexers-fbbc5dcccabc36ac)
[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] [stderr]      Running tests/with_sample.rs (/opt/rustwide/target/debug/deps/with_sample-23a9cc25b178ff59)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test load ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nexers
[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" "65568a513410ad25f49da20bbf1dbb6dbf02cf090c4f6402ed388d2a691b9748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65568a513410ad25f49da20bbf1dbb6dbf02cf090c4f6402ed388d2a691b9748", kill_on_drop: false }`
[INFO] [stdout] 65568a513410ad25f49da20bbf1dbb6dbf02cf090c4f6402ed388d2a691b9748