[INFO] updating cached repository https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1
[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] 085d07dc42b6b96392880cedcf53d7f2d7332929
[INFO] checking subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsubjectdenied%2FProgramming-in-Rust-02-Relative-Dates-Part-1" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1
[INFO] finished tweaking git repo https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1
[INFO] tweaked toml for git repo https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/subjectdenied/Programming-in-Rust-02-Relative-Dates-Part-1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+914adf04af1c1a984707f778da3d04590c03d144" "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] 3a9643c4ee1b81edd81b3ff14bc7effd0e5c8006330539aa266f3b4e3f134900
[INFO] running `"docker" "start" "-a" "3a9643c4ee1b81edd81b3ff14bc7effd0e5c8006330539aa266f3b4e3f134900"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.30
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.7.0
[INFO] [stderr]     Checking clap v2.26.0 (https://github.com/kbknapp/clap-rs#f2266e23)
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking reldate v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.86s
[INFO] running `"docker" "inspect" "3a9643c4ee1b81edd81b3ff14bc7effd0e5c8006330539aa266f3b4e3f134900"`
[INFO] running `"docker" "rm" "-f" "3a9643c4ee1b81edd81b3ff14bc7effd0e5c8006330539aa266f3b4e3f134900"`
[INFO] [stdout] 3a9643c4ee1b81edd81b3ff14bc7effd0e5c8006330539aa266f3b4e3f134900