[INFO] cloning repository https://github.com/derekmorr/rust-rc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekmorr/rust-rc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekmorr%2Frust-rc"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekmorr%2Frust-rc'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 746e1be1e4c7a2c47a43fcc33d6c738f3b4ec165
[INFO] checking derekmorr/rust-rc against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekmorr%2Frust-rc" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derekmorr/rust-rc 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/derekmorr/rust-rc
[INFO] finished tweaking git repo https://github.com/derekmorr/rust-rc
[INFO] tweaked toml for git repo https://github.com/derekmorr/rust-rc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/derekmorr/rust-rc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4ea54f9aaf95a4430bf9bd33eb0fd8cd9be9676e6710caa0dd4eb432119dde5a
[INFO] running `"docker" "start" "-a" "4ea54f9aaf95a4430bf9bd33eb0fd8cd9be9676e6710caa0dd4eb432119dde5a"`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling bv v0.7.4
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]     Checking bytecount v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking itertools-num v0.1.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking serde v1.0.70
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking multimap v0.4.0
[INFO] [stderr]     Checking bio v0.21.0
[INFO] [stderr]     Checking rust-rc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "4ea54f9aaf95a4430bf9bd33eb0fd8cd9be9676e6710caa0dd4eb432119dde5a"`
[INFO] running `"docker" "rm" "-f" "4ea54f9aaf95a4430bf9bd33eb0fd8cd9be9676e6710caa0dd4eb432119dde5a"`
[INFO] [stdout] 4ea54f9aaf95a4430bf9bd33eb0fd8cd9be9676e6710caa0dd4eb432119dde5a