[INFO] cloning repository https://github.com/clevinson/rustypals
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clevinson/rustypals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclevinson%2Frustypals"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclevinson%2Frustypals'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f27eec02a24aeb85864819194e70cb73649c6657
[INFO] checking clevinson/rustypals against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclevinson%2Frustypals" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/clevinson/rustypals on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/clevinson/rustypals
[INFO] finished tweaking git repo https://github.com/clevinson/rustypals
[INFO] tweaked toml for git repo https://github.com/clevinson/rustypals written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/clevinson/rustypals already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] c9cac027bcaee5029d3665911f7ca8f9b109a964f7ce5b56538238b29951c94c
[INFO] running `"docker" "start" "-a" "c9cac027bcaee5029d3665911f7ca8f9b109a964f7ce5b56538238b29951c94c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.50
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking rustypals v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `hex`
[INFO] [stderr]  --> src/set1.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use hex;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.28s
[INFO] running `"docker" "inspect" "c9cac027bcaee5029d3665911f7ca8f9b109a964f7ce5b56538238b29951c94c"`
[INFO] running `"docker" "rm" "-f" "c9cac027bcaee5029d3665911f7ca8f9b109a964f7ce5b56538238b29951c94c"`
[INFO] [stdout] c9cac027bcaee5029d3665911f7ca8f9b109a964f7ce5b56538238b29951c94c