[INFO] updating cached repository https://github.com/tom-hag/synth-proto
[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] 1ff62affd96dca5e79849fb9be8c34860cbab78d
[INFO] checking tom-hag/synth-proto against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftom-hag%2Fsynth-proto" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tom-hag/synth-proto on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tom-hag/synth-proto
[INFO] finished tweaking git repo https://github.com/tom-hag/synth-proto
[INFO] tweaked toml for git repo https://github.com/tom-hag/synth-proto written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/tom-hag/synth-proto already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 5e6caf8cd3e95e436e7fc6880070b9c66b28e67dfe84996f95324b0ebb08ea43
[INFO] running `"docker" "start" "-a" "5e6caf8cd3e95e436e7fc6880070b9c66b28e67dfe84996f95324b0ebb08ea43"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking sample v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking backtrace v0.3.34
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking synth-proto v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.90s
[INFO] running `"docker" "inspect" "5e6caf8cd3e95e436e7fc6880070b9c66b28e67dfe84996f95324b0ebb08ea43"`
[INFO] running `"docker" "rm" "-f" "5e6caf8cd3e95e436e7fc6880070b9c66b28e67dfe84996f95324b0ebb08ea43"`
[INFO] [stdout] 5e6caf8cd3e95e436e7fc6880070b9c66b28e67dfe84996f95324b0ebb08ea43