[INFO] fetching crate bifrost 0.4.0-alpha.2...
[INFO] checking bifrost-0.4.0-alpha.2 against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] extracting crate bifrost 0.4.0-alpha.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bifrost 0.4.0-alpha.2 on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bifrost 0.4.0-alpha.2
[INFO] finished tweaking crates.io crate bifrost 0.4.0-alpha.2
[INFO] tweaked toml for crates.io crate bifrost 0.4.0-alpha.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bifrost-ice v0.1.0-alpha
[INFO] [stderr]   Downloaded bifrost-stun v0.1.0-alpha
[INFO] [stderr]   Downloaded bifrost-sdp v0.1.0
[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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 880576d8c3bf94a47c83ccf01bf313779f4fa2ec8b729e2c5ced3c430711d2de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "880576d8c3bf94a47c83ccf01bf313779f4fa2ec8b729e2c5ced3c430711d2de"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking vec1 v1.5.0
[INFO] [stderr]     Checking bifrost-stun v0.1.0-alpha
[INFO] [stderr]     Checking bifrost-ice v0.1.0-alpha
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking bifrost-sdp v0.1.0
[INFO] [stderr]     Checking bifrost v0.4.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.87s
[INFO] running `"docker" "inspect" "880576d8c3bf94a47c83ccf01bf313779f4fa2ec8b729e2c5ced3c430711d2de"`
[INFO] running `"docker" "rm" "-f" "880576d8c3bf94a47c83ccf01bf313779f4fa2ec8b729e2c5ced3c430711d2de"`
[INFO] [stdout] 880576d8c3bf94a47c83ccf01bf313779f4fa2ec8b729e2c5ced3c430711d2de