[INFO] updating cached repository https://github.com/peterdelevoryas/r8
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 86acd3eb55c646ac260ebe8af36376439e5c0cd0
[INFO] checking peterdelevoryas/r8 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterdelevoryas%2Fr8" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peterdelevoryas/r8 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/peterdelevoryas/r8
[INFO] finished tweaking git repo https://github.com/peterdelevoryas/r8
[INFO] tweaked toml for git repo https://github.com/peterdelevoryas/r8 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/peterdelevoryas/r8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] ae761d2213583af3691f77a6d5896c5e31c923104e50d06ea517a6ce8a53d46b
[INFO] running `"docker" "start" "-a" "ae761d2213583af3691f77a6d5896c5e31c923104e50d06ea517a6ce8a53d46b"`
[INFO] [stderr]    Compiling cranelift-entity v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking backtrace v0.3.37
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking cranelift-bforest v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]    Compiling target-lexicon v0.8.1
[INFO] [stderr]     Checking goblin v0.0.24
[INFO] [stderr]     Checking faerie v0.11.0
[INFO] [stderr]    Compiling cranelift-codegen v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking cranelift-module v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking cranelift-frontend v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking cranelift-faerie v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking cranelift v0.43.0 (https://github.com/CraneStation/cranelift#de7354e0)
[INFO] [stderr]     Checking r8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `"docker" "inspect" "ae761d2213583af3691f77a6d5896c5e31c923104e50d06ea517a6ce8a53d46b"`
[INFO] running `"docker" "rm" "-f" "ae761d2213583af3691f77a6d5896c5e31c923104e50d06ea517a6ce8a53d46b"`
[INFO] [stdout] ae761d2213583af3691f77a6d5896c5e31c923104e50d06ea517a6ce8a53d46b