[INFO] fetching crate palex 0.1.0...
[INFO] checking palex-0.1.0 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate palex 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate palex 0.1.0 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate palex 0.1.0
[INFO] finished tweaking crates.io crate palex 0.1.0
[INFO] tweaked toml for crates.io crate palex 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate palex 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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] 85bab542c4287d3f2f090dc137e287d5bd1f2e2634d1056e0159af00f4ce4a1e
[INFO] running `Command { std: "docker" "start" "-a" "85bab542c4287d3f2f090dc137e287d5bd1f2e2634d1056e0159af00f4ce4a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85bab542c4287d3f2f090dc137e287d5bd1f2e2634d1056e0159af00f4ce4a1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bab542c4287d3f2f090dc137e287d5bd1f2e2634d1056e0159af00f4ce4a1e", kill_on_drop: false }`
[INFO] [stdout] 85bab542c4287d3f2f090dc137e287d5bd1f2e2634d1056e0159af00f4ce4a1e
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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] 002865aaa4c729d00c8e5eac53ed7eae9677d08b3083c04a6d4fe8335a5d82a7
[INFO] running `Command { std: "docker" "start" "-a" "002865aaa4c729d00c8e5eac53ed7eae9677d08b3083c04a6d4fe8335a5d82a7", kill_on_drop: false }`
[INFO] [stderr]     Checking palex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "002865aaa4c729d00c8e5eac53ed7eae9677d08b3083c04a6d4fe8335a5d82a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002865aaa4c729d00c8e5eac53ed7eae9677d08b3083c04a6d4fe8335a5d82a7", kill_on_drop: false }`
[INFO] [stdout] 002865aaa4c729d00c8e5eac53ed7eae9677d08b3083c04a6d4fe8335a5d82a7