[INFO] updating cached repository https://github.com/matklad/rowan
[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/matklad/rowan
[INFO] [stderr]    7ec4b78..cdb6ded  master     -> master
[INFO] [stderr]  * [new branch]      refactor   -> refactor
[INFO] [stderr]    7ec4b78..4eecb44  staging    -> staging
[INFO] [stderr]  * [new tag]         v0.8.0     -> v0.8.0
[INFO] [stderr]  * [new tag]         v0.8.1     -> v0.8.1
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cdb6dedbb8ab9330d2fab0685bcaddc0c560f107
[INFO] checking matklad/rowan against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatklad%2Frowan" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matklad/rowan on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matklad/rowan
[INFO] finished tweaking git repo https://github.com/matklad/rowan
[INFO] tweaked toml for git repo https://github.com/matklad/rowan written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+2da942f32802c8233a09744024dfbc34431adf65" "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] 086b0a87978958792df8768f7d546f598b54d44de544f7d22d07cf46c6b58851
[INFO] running `"docker" "start" "-a" "086b0a87978958792df8768f7d546f598b54d44de544f7d22d07cf46c6b58851"`
[INFO] [stderr]     Checking thin-dst v1.0.0
[INFO] [stderr]     Checking text_unit v0.1.9
[INFO] [stderr]     Checking m_lexer v0.0.4
[INFO] [stderr]     Checking rowan v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.36s
[INFO] running `"docker" "inspect" "086b0a87978958792df8768f7d546f598b54d44de544f7d22d07cf46c6b58851"`
[INFO] running `"docker" "rm" "-f" "086b0a87978958792df8768f7d546f598b54d44de544f7d22d07cf46c6b58851"`
[INFO] [stdout] 086b0a87978958792df8768f7d546f598b54d44de544f7d22d07cf46c6b58851