[INFO] fetching crate object 0.22.0...
[INFO] checking object-0.22.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate object 0.22.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate object 0.22.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate object 0.22.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate object 0.22.0
[INFO] tweaked toml for crates.io crate object 0.22.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate object 0.22.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2b7ec72b2b89dde7dd030321d94a542331518517a3cad04624ab515d51c5746
[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" "e2b7ec72b2b89dde7dd030321d94a542331518517a3cad04624ab515d51c5746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2b7ec72b2b89dde7dd030321d94a542331518517a3cad04624ab515d51c5746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b7ec72b2b89dde7dd030321d94a542331518517a3cad04624ab515d51c5746", kill_on_drop: false }`
[INFO] [stdout] e2b7ec72b2b89dde7dd030321d94a542331518517a3cad04624ab515d51c5746
[INFO] running `Command { std: "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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13a3003726398b1c9cf51713a90d007e0db524f5a10ff7a588f0bfda67464042
[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" "13a3003726398b1c9cf51713a90d007e0db524f5a10ff7a588f0bfda67464042", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking object v0.22.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.04s
[INFO] running `Command { std: "docker" "inspect" "13a3003726398b1c9cf51713a90d007e0db524f5a10ff7a588f0bfda67464042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a3003726398b1c9cf51713a90d007e0db524f5a10ff7a588f0bfda67464042", kill_on_drop: false }`
[INFO] [stdout] 13a3003726398b1c9cf51713a90d007e0db524f5a10ff7a588f0bfda67464042