[INFO] updating cached repository https://github.com/Vanille-N/ray_tracer
[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] [stderr] From https://github.com/Vanille-N/ray_tracer
[INFO] [stderr]    f923581..e05263e  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e05263e34f95826a339d6edc8ba4f98b6da6852a
[INFO] checking Vanille-N/ray_tracer against try#5fae8f15a4dcfce640ee800a4d495673524b0a4d for pr-71814
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVanille-N%2Fray_tracer" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vanille-N/ray_tracer on toolchain 5fae8f15a4dcfce640ee800a4d495673524b0a4d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Vanille-N/ray_tracer
[INFO] finished tweaking git repo https://github.com/Vanille-N/ray_tracer
[INFO] tweaked toml for git repo https://github.com/Vanille-N/ray_tracer written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Vanille-N/ray_tracer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+5fae8f15a4dcfce640ee800a4d495673524b0a4d" "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] f489f106b1f55d7c2f3beff7e0c0c7772e0026600cd84d6f9bb2c3a26c58d9a5
[INFO] running `"docker" "start" "-a" "f489f106b1f55d7c2f3beff7e0c0c7772e0026600cd84d6f9bb2c3a26c58d9a5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking ray_tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]   --> src/composite_flasks.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let epsilon = 0.1 * hgt;
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_epsilon`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `neck_start`
[INFO] [stderr]   --> src/composite_flasks.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         let neck_start = 0.75 * hgt;
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neck_start`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epsilon`
[INFO] [stderr]   --> src/composite_flasks.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let epsilon = 0.1 * hgt;
[INFO] [stderr]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_epsilon`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `neck_start`
[INFO] [stderr]   --> src/composite_flasks.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |         let neck_start = 0.75 * hgt;
[INFO] [stderr]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neck_start`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.66s
[INFO] running `"docker" "inspect" "f489f106b1f55d7c2f3beff7e0c0c7772e0026600cd84d6f9bb2c3a26c58d9a5"`
[INFO] running `"docker" "rm" "-f" "f489f106b1f55d7c2f3beff7e0c0c7772e0026600cd84d6f9bb2c3a26c58d9a5"`
[INFO] [stdout] f489f106b1f55d7c2f3beff7e0c0c7772e0026600cd84d6f9bb2c3a26c58d9a5