[INFO] fetching crate protocol 3.1.9...
[INFO] checking protocol-3.1.9 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate protocol 3.1.9 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate protocol 3.1.9 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate protocol 3.1.9
[INFO] removed 6 missing examples
[INFO] finished tweaking crates.io crate protocol 3.1.9
[INFO] tweaked toml for crates.io crate protocol 3.1.9 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate protocol 3.1.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a442d936ec32a74951e10161a36f7bf7d00d634076dc1aecd353e29a196f4b0e
[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" "a442d936ec32a74951e10161a36f7bf7d00d634076dc1aecd353e29a196f4b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a442d936ec32a74951e10161a36f7bf7d00d634076dc1aecd353e29a196f4b0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a442d936ec32a74951e10161a36f7bf7d00d634076dc1aecd353e29a196f4b0e", kill_on_drop: false }`
[INFO] [stdout] a442d936ec32a74951e10161a36f7bf7d00d634076dc1aecd353e29a196f4b0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7321566ff1bcf3c8c25bedd6cedfd9bd5085c9967f0820221f9cbd32ff664d5c
[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" "7321566ff1bcf3c8c25bedd6cedfd9bd5085c9967f0820221f9cbd32ff664d5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking protocol v3.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling protocol-derive v3.1.9
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.93s
[INFO] running `Command { std: "docker" "inspect" "7321566ff1bcf3c8c25bedd6cedfd9bd5085c9967f0820221f9cbd32ff664d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7321566ff1bcf3c8c25bedd6cedfd9bd5085c9967f0820221f9cbd32ff664d5c", kill_on_drop: false }`
[INFO] [stdout] 7321566ff1bcf3c8c25bedd6cedfd9bd5085c9967f0820221f9cbd32ff664d5c