[INFO] crate proc-macro-error 0.2.6 is already in cache
[INFO] checking proc-macro-error-0.2.6 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate proc-macro-error 0.2.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate proc-macro-error 0.2.6 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate proc-macro-error 0.2.6
[INFO] finished tweaking crates.io crate proc-macro-error 0.2.6
[INFO] tweaked toml for crates.io crate proc-macro-error 0.2.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 5bbc75306ddd4be85516b4dfe8f8751a2b39188d58faf569a07e48f186d14872
[INFO] running `"docker" "start" "-a" "5bbc75306ddd4be85516b4dfe8f8751a2b39188d58faf569a07e48f186d14872"`
[INFO] [stderr]     Checking syn v1.0.5
[INFO] [stderr]     Checking proc-macro-error v0.2.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `"docker" "inspect" "5bbc75306ddd4be85516b4dfe8f8751a2b39188d58faf569a07e48f186d14872"`
[INFO] running `"docker" "rm" "-f" "5bbc75306ddd4be85516b4dfe8f8751a2b39188d58faf569a07e48f186d14872"`
[INFO] [stdout] 5bbc75306ddd4be85516b4dfe8f8751a2b39188d58faf569a07e48f186d14872