[INFO] cloning repository https://github.com/MarkSwanson/cargo_default_features
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarkSwanson/cargo_default_features" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkSwanson%2Fcargo_default_features"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkSwanson%2Fcargo_default_features'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a337930febc5ec35cbb7c5636a4b1e060b87b778
[INFO] checking MarkSwanson/cargo_default_features against try#1a399c10897767c36d147199696c96f193034e49 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkSwanson%2Fcargo_default_features" "/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/MarkSwanson/cargo_default_features on toolchain 1a399c10897767c36d147199696c96f193034e49
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/MarkSwanson/cargo_default_features
[INFO] finished tweaking git repo https://github.com/MarkSwanson/cargo_default_features
[INFO] tweaked toml for git repo https://github.com/MarkSwanson/cargo_default_features written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MarkSwanson/cargo_default_features already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a399c10897767c36d147199696c96f193034e49" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+1a399c10897767c36d147199696c96f193034e49" "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] 89e7e80c7e7074302642fe7e7dd26dfa65749c1690d09dd265420055d4b6a5fe
[INFO] running `"docker" "start" "-a" "89e7e80c7e7074302642fe7e7dd26dfa65749c1690d09dd265420055d4b6a5fe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking cargo_default_features v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `num_traits::Zero`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::Zero;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::Zero`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::Zero;
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "89e7e80c7e7074302642fe7e7dd26dfa65749c1690d09dd265420055d4b6a5fe"`
[INFO] running `"docker" "rm" "-f" "89e7e80c7e7074302642fe7e7dd26dfa65749c1690d09dd265420055d4b6a5fe"`
[INFO] [stdout] 89e7e80c7e7074302642fe7e7dd26dfa65749c1690d09dd265420055d4b6a5fe