[INFO] updating cached repository https://github.com/courajs/refdb
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/courajs/refdb
[INFO] [stderr]    da504cb..41bb2c2  main       -> main
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 41bb2c237717c3f9d6dfc9eacc94580c73d24655
[INFO] checking courajs/refdb against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcourajs%2Frefdb" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/courajs/refdb on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/courajs/refdb
[INFO] finished tweaking git repo https://github.com/courajs/refdb
[INFO] tweaked toml for git repo https://github.com/courajs/refdb written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/courajs/refdb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 8f693378c241ffaae57fa02998ab4e4d6efbaeae45f09b9dc67f4afbd217ebde
[INFO] running `"docker" "start" "-a" "8f693378c241ffaae57fa02998ab4e4d6efbaeae45f09b9dc67f4afbd217ebde"`
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling lmdb-rkv-sys v0.9.6
[INFO] [stderr]     Checking bincode v1.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking lexical-core v0.4.6
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking lmdb-rkv v0.12.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking num-bigint v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]    Compiling synstructure v0.12.2
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking rkv v0.10.2
[INFO] [stderr]     Checking rf0 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "8f693378c241ffaae57fa02998ab4e4d6efbaeae45f09b9dc67f4afbd217ebde"`
[INFO] running `"docker" "rm" "-f" "8f693378c241ffaae57fa02998ab4e4d6efbaeae45f09b9dc67f4afbd217ebde"`
[INFO] [stdout] 8f693378c241ffaae57fa02998ab4e4d6efbaeae45f09b9dc67f4afbd217ebde