[INFO] cloning repository https://github.com/DavidBM/slacktus
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DavidBM/slacktus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidBM%2Fslacktus"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidBM%2Fslacktus'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f471f96a50f12d7fbc94493136c653a39fd67d9a
[INFO] checking DavidBM/slacktus against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavidBM%2Fslacktus" "/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/DavidBM/slacktus on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DavidBM/slacktus
[INFO] finished tweaking git repo https://github.com/DavidBM/slacktus
[INFO] tweaked toml for git repo https://github.com/DavidBM/slacktus written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DavidBM/slacktus already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa19d93e28df39828e458c9b79e1bd0cd9909f4fc70bfd863dc1956643c7898e
[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" "fa19d93e28df39828e458c9b79e1bd0cd9909f4fc70bfd863dc1956643c7898e"`
[INFO] [stderr]    Compiling regex v1.1.8
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking backtrace-sys v0.1.30
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking miniz_oxide_c_api v0.2.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking openssl v0.10.23
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking h2 v0.1.25
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking hyper v0.12.31
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.18
[INFO] [stderr]     Checking slacktus v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.62s
[INFO] running `"docker" "inspect" "fa19d93e28df39828e458c9b79e1bd0cd9909f4fc70bfd863dc1956643c7898e"`
[INFO] running `"docker" "rm" "-f" "fa19d93e28df39828e458c9b79e1bd0cd9909f4fc70bfd863dc1956643c7898e"`
[INFO] [stdout] fa19d93e28df39828e458c9b79e1bd0cd9909f4fc70bfd863dc1956643c7898e