[INFO] updating cached repository https://github.com/conradludgate/mb
[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] 9879d13afc05010771254dcbf9f742a80571b1d1
[INFO] testing conradludgate/mb against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Fmb" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/mb on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/conradludgate/mb
[INFO] finished tweaking git repo https://github.com/conradludgate/mb
[INFO] tweaked toml for git repo https://github.com/conradludgate/mb written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/conradludgate/mb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 56b5d516dc2696542dbbbf6e2a8ce669d269aeb0e8b03c3b8d0acb4f3374b9a9
[INFO] running `"docker" "start" "-a" "56b5d516dc2696542dbbbf6e2a8ce669d269aeb0e8b03c3b8d0acb4f3374b9a9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.2.2
[INFO] [stderr]    Compiling rug v1.8.0
[INFO] [stderr]    Compiling az v0.3.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling hsl v0.1.1
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling png v0.16.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling console v0.10.0
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling indicatif v0.14.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1 (https://github.com/clap-rs/clap/#aae96236)
[INFO] [stderr]    Compiling clap v3.0.0-beta.1 (https://github.com/clap-rs/clap/#aae96236)
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "56b5d516dc2696542dbbbf6e2a8ce669d269aeb0e8b03c3b8d0acb4f3374b9a9"`
[INFO] running `"docker" "rm" "-f" "56b5d516dc2696542dbbbf6e2a8ce669d269aeb0e8b03c3b8d0acb4f3374b9a9"`
[INFO] [stdout] 56b5d516dc2696542dbbbf6e2a8ce669d269aeb0e8b03c3b8d0acb4f3374b9a9