[INFO] updating cached repository https://github.com/lovesegfault/dotty
[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/lovesegfault/dotty
[INFO] [stderr]    1212433..5446225  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 54462251434c4ee351cfb04fa5bb3577e9bc6778
[INFO] checking lovesegfault/dotty against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fdotty" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovesegfault/dotty 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/lovesegfault/dotty
[INFO] finished tweaking git repo https://github.com/lovesegfault/dotty
[INFO] tweaked toml for git repo https://github.com/lovesegfault/dotty written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/lovesegfault/dotty 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] a1b364404d32c4ecaa97489d6e6a9801a58ea790964832791f8ea618a9bc576e
[INFO] running `"docker" "start" "-a" "a1b364404d32c4ecaa97489d6e6a9801a58ea790964832791f8ea618a9bc576e"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.12
[INFO] [stderr]    Compiling libgit2-sys v0.10.0
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.0
[INFO] [stderr]     Checking git2 v0.11.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]     Checking structopt v0.3.7
[INFO] [stderr]     Checking dotty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `"docker" "inspect" "a1b364404d32c4ecaa97489d6e6a9801a58ea790964832791f8ea618a9bc576e"`
[INFO] running `"docker" "rm" "-f" "a1b364404d32c4ecaa97489d6e6a9801a58ea790964832791f8ea618a9bc576e"`
[INFO] [stdout] a1b364404d32c4ecaa97489d6e6a9801a58ea790964832791f8ea618a9bc576e