[INFO] crate from_variants 0.4.0 is already in cache
[INFO] checking from_variants-0.4.0 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate from_variants 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate from_variants 0.4.0 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate from_variants 0.4.0
[INFO] finished tweaking crates.io crate from_variants 0.4.0
[INFO] tweaked toml for crates.io crate from_variants 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "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] 6bb308a1bf9bbd9af9919248178bee8bb0c122f0d1b42bb9875a2e66360da80d
[INFO] running `"docker" "start" "-a" "6bb308a1bf9bbd9af9919248178bee8bb0c122f0d1b42bb9875a2e66360da80d"`
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling darling_core v0.5.0
[INFO] [stderr]    Compiling darling_macro v0.5.0
[INFO] [stderr]    Compiling darling v0.5.0
[INFO] [stderr]    Compiling from_variants_impl v0.4.0
[INFO] [stderr]     Checking from_variants v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.97s
[INFO] running `"docker" "inspect" "6bb308a1bf9bbd9af9919248178bee8bb0c122f0d1b42bb9875a2e66360da80d"`
[INFO] running `"docker" "rm" "-f" "6bb308a1bf9bbd9af9919248178bee8bb0c122f0d1b42bb9875a2e66360da80d"`
[INFO] [stdout] 6bb308a1bf9bbd9af9919248178bee8bb0c122f0d1b42bb9875a2e66360da80d