[INFO] fetching crate background-jobs-server 0.4.0...
[INFO] checking background-jobs-server-0.4.0 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] extracting crate background-jobs-server 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate background-jobs-server 0.4.0 on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate background-jobs-server 0.4.0
[INFO] finished tweaking crates.io crate background-jobs-server 0.4.0
[INFO] tweaked toml for crates.io crate background-jobs-server 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-zmq v0.8.0
[INFO] [stderr]   Downloaded background-jobs-core v0.4.1
[INFO] [stderr]   Downloaded futures-zmq v0.3.1
[INFO] [stderr]   Downloaded async-zmq-types v0.2.0
[INFO] [stderr]   Downloaded kv v0.7.0
[INFO] [stderr]   Downloaded async-zmq-derive v0.1.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 11e8a59f39cc0793eb187fbd8995bc4b82ab0f3c9061f26a705ef8f5522dc6d4
[INFO] running `"docker" "start" "-a" "11e8a59f39cc0793eb187fbd8995bc4b82ab0f3c9061f26a705ef8f5522dc6d4"`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling lmdb-sys v0.8.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]    Compiling zmq-sys v0.8.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling zmq v0.8.3
[INFO] [stderr]     Checking async-zmq-types v0.2.0
[INFO] [stderr]     Checking lmdb v0.8.0
[INFO] [stderr]     Checking kv v0.7.0
[INFO] [stderr]     Checking background-jobs-core v0.4.1
[INFO] [stderr]    Compiling async-zmq-derive v0.1.0
[INFO] [stderr]     Checking tokio-zmq v0.8.0
[INFO] [stderr]     Checking background-jobs-server v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.06s
[INFO] running `"docker" "inspect" "11e8a59f39cc0793eb187fbd8995bc4b82ab0f3c9061f26a705ef8f5522dc6d4"`
[INFO] running `"docker" "rm" "-f" "11e8a59f39cc0793eb187fbd8995bc4b82ab0f3c9061f26a705ef8f5522dc6d4"`
[INFO] [stdout] 11e8a59f39cc0793eb187fbd8995bc4b82ab0f3c9061f26a705ef8f5522dc6d4