[INFO] crate jsonfmt 0.4.0 is already in cache
[INFO] checking jsonfmt-0.4.0 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate jsonfmt 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate jsonfmt 0.4.0 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate jsonfmt 0.4.0
[INFO] finished tweaking crates.io crate jsonfmt 0.4.0
[INFO] tweaked toml for crates.io crate jsonfmt 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate jsonfmt 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "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" "+e922e6444795ab795fab1943288aee3d543699b8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 18df5811aac7dab1f53da1bf12d2347ef27f784f6d4bcd4c8e89e6b5f1fe74ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "18df5811aac7dab1f53da1bf12d2347ef27f784f6d4bcd4c8e89e6b5f1fe74ae"`
[INFO] [stderr]     Checking pico-args v0.3.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking jsonfmt v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `"docker" "inspect" "18df5811aac7dab1f53da1bf12d2347ef27f784f6d4bcd4c8e89e6b5f1fe74ae"`
[INFO] running `"docker" "rm" "-f" "18df5811aac7dab1f53da1bf12d2347ef27f784f6d4bcd4c8e89e6b5f1fe74ae"`
[INFO] [stdout] 18df5811aac7dab1f53da1bf12d2347ef27f784f6d4bcd4c8e89e6b5f1fe74ae