[INFO] updating cached repository https://github.com/ycatbink0t/smallest_enclosing_ring
[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] 13e654db002d9882d0e4a1c237bd6c5eccfda6c5
[INFO] checking ycatbink0t/smallest_enclosing_ring against try#71b81291baafb8a58836272757b28817fe1d8190 for pr-73102
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fycatbink0t%2Fsmallest_enclosing_ring" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ycatbink0t/smallest_enclosing_ring on toolchain 71b81291baafb8a58836272757b28817fe1d8190
[INFO] running `"/workspace/cargo-home/bin/cargo" "+71b81291baafb8a58836272757b28817fe1d8190" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ycatbink0t/smallest_enclosing_ring
[INFO] finished tweaking git repo https://github.com/ycatbink0t/smallest_enclosing_ring
[INFO] tweaked toml for git repo https://github.com/ycatbink0t/smallest_enclosing_ring written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ycatbink0t/smallest_enclosing_ring already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+71b81291baafb8a58836272757b28817fe1d8190" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+71b81291baafb8a58836272757b28817fe1d8190" "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] 2b784867d70ffa0ec002c6a0f2bd551add4e3e9711baeffa8d99f098037705ea
[INFO] running `"docker" "start" "-a" "2b784867d70ffa0ec002c6a0f2bd551add4e3e9711baeffa8d99f098037705ea"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[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 smallest_enclosing_ring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |         let mut points: Vec<Point> = (0..10000).map(|_| {
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let mut points: Vec<Point> = (0..10000).map(|_| {
[INFO] [stderr]     |             ----^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.14s
[INFO] running `"docker" "inspect" "2b784867d70ffa0ec002c6a0f2bd551add4e3e9711baeffa8d99f098037705ea"`
[INFO] running `"docker" "rm" "-f" "2b784867d70ffa0ec002c6a0f2bd551add4e3e9711baeffa8d99f098037705ea"`
[INFO] [stdout] 2b784867d70ffa0ec002c6a0f2bd551add4e3e9711baeffa8d99f098037705ea