[INFO] fetching crate json-trait-rs 0.9.0...
[INFO] checking json-trait-rs-0.9.0 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate json-trait-rs 0.9.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate json-trait-rs 0.9.0 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate json-trait-rs 0.9.0
[INFO] finished tweaking crates.io crate json-trait-rs 0.9.0
[INFO] tweaked toml for crates.io crate json-trait-rs 0.9.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 42cc5ba829854d4a946fb79726d6ecf7e81f7ecdf32be433c1c68c8d6673f8be
[INFO] running `"docker" "start" "-a" "42cc5ba829854d4a946fb79726d6ecf7e81f7ecdf32be433c1c68c8d6673f8be"`
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]    Compiling test-case v0.3.3
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Checking json-trait-rs v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.05s
[INFO] running `"docker" "inspect" "42cc5ba829854d4a946fb79726d6ecf7e81f7ecdf32be433c1c68c8d6673f8be"`
[INFO] running `"docker" "rm" "-f" "42cc5ba829854d4a946fb79726d6ecf7e81f7ecdf32be433c1c68c8d6673f8be"`
[INFO] [stdout] 42cc5ba829854d4a946fb79726d6ecf7e81f7ecdf32be433c1c68c8d6673f8be