[INFO] fetching crate wq 0.0.4...
[INFO] checking wq-0.0.4 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate wq 0.0.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wq 0.0.4 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wq 0.0.4
[INFO] finished tweaking crates.io crate wq 0.0.4
[INFO] tweaked toml for crates.io crate wq 0.0.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate wq 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", 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] 9d68ad59bc65bec29ae88ff99aa19f4cb0b1216a044b7556827545416437c0e0
[INFO] running `Command { std: "docker" "start" "-a" "9d68ad59bc65bec29ae88ff99aa19f4cb0b1216a044b7556827545416437c0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d68ad59bc65bec29ae88ff99aa19f4cb0b1216a044b7556827545416437c0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d68ad59bc65bec29ae88ff99aa19f4cb0b1216a044b7556827545416437c0e0", kill_on_drop: false }`
[INFO] [stdout] 9d68ad59bc65bec29ae88ff99aa19f4cb0b1216a044b7556827545416437c0e0
[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=forbid" "-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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--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] aee7d5a8ea208a09601d6fabd971dbf1a55ef0bccdc80757e0ee3e0a05ff995a
[INFO] running `Command { std: "docker" "start" "-a" "aee7d5a8ea208a09601d6fabd971dbf1a55ef0bccdc80757e0ee3e0a05ff995a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking webassembly v0.8.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking watson v0.9.1
[INFO] [stderr]     Checking wq v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.52s
[INFO] running `Command { std: "docker" "inspect" "aee7d5a8ea208a09601d6fabd971dbf1a55ef0bccdc80757e0ee3e0a05ff995a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee7d5a8ea208a09601d6fabd971dbf1a55ef0bccdc80757e0ee3e0a05ff995a", kill_on_drop: false }`
[INFO] [stdout] aee7d5a8ea208a09601d6fabd971dbf1a55ef0bccdc80757e0ee3e0a05ff995a