[INFO] fetching crate err-derive 0.2.3...
[INFO] checking err-derive-0.2.3 against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] extracting crate err-derive 0.2.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate err-derive 0.2.3 on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate err-derive 0.2.3
[INFO] finished tweaking crates.io crate err-derive 0.2.3
[INFO] tweaked toml for crates.io crate err-derive 0.2.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate err-derive 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "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] 6e8455849fbc5fc99bbb3acfa1829c8dc2e706647cfc21226feeb6a6c013bd3c
[INFO] running `"docker" "start" "-a" "6e8455849fbc5fc99bbb3acfa1829c8dc2e706647cfc21226feeb6a6c013bd3c"`
[INFO] [stderr]     Checking syn v1.0.16
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking error-chain v0.12.2
[INFO] [stderr]     Checking cargo_metadata v0.6.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]     Checking skeptic v0.13.4
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling err-derive v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking synstructure v0.12.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `"docker" "inspect" "6e8455849fbc5fc99bbb3acfa1829c8dc2e706647cfc21226feeb6a6c013bd3c"`
[INFO] running `"docker" "rm" "-f" "6e8455849fbc5fc99bbb3acfa1829c8dc2e706647cfc21226feeb6a6c013bd3c"`
[INFO] [stdout] 6e8455849fbc5fc99bbb3acfa1829c8dc2e706647cfc21226feeb6a6c013bd3c