[INFO] updating cached repository https://github.com/DarrenRJ/Euler [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] 2669d3f7afa22fcb93de70fcc0a8d4fb10a4f483 [INFO] checking DarrenRJ/Euler against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DarrenRJ/Euler on toolchain b61e69433951e31f7bd746e22f516a48ad41623b [INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/DarrenRJ/Euler [INFO] finished tweaking git repo https://github.com/DarrenRJ/Euler [INFO] tweaked toml for git repo https://github.com/DarrenRJ/Euler written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/DarrenRJ/Euler already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 5cbfc5b8a4a32f06991e28ef2ed55d15b1717d0e0a78b662938f70f01154ccc7 [INFO] running `"docker" "start" "-a" "5cbfc5b8a4a32f06991e28ef2ed55d15b1717d0e0a78b662938f70f01154ccc7"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking smallvec v0.4.4 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Checking num-bigint v0.1.40 [INFO] [stderr] Checking primal-sieve v0.2.7 [INFO] [stderr] Checking num-rational v0.1.39 [INFO] [stderr] Checking num v0.1.40 [INFO] [stderr] Checking primal-check v0.2.2 [INFO] [stderr] Checking primal v0.2.3 [INFO] [stderr] Checking euler v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2117:25 [INFO] [stderr] | [INFO] [stderr] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [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/solutions.rs:2354:13 [INFO] [stderr] | [INFO] [stderr] 2354 | let mut a = 100-i; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2357:17 [INFO] [stderr] | [INFO] [stderr] 2357 | let mut b = 100-j; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2117:25 [INFO] [stderr] | [INFO] [stderr] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [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/solutions.rs:2354:13 [INFO] [stderr] | [INFO] [stderr] 2354 | let mut a = 100-i; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/solutions.rs:2357:17 [INFO] [stderr] | [INFO] [stderr] 2357 | let mut b = 100-j; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_factors` [INFO] [stderr] --> src/factors.rs:205:5 [INFO] [stderr] | [INFO] [stderr] 205 | fn test_factors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_divisor_count` [INFO] [stderr] --> src/factors.rs:215:5 [INFO] [stderr] | [INFO] [stderr] 215 | fn test_divisor_count() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_proper_divisors` [INFO] [stderr] --> src/factors.rs:226:5 [INFO] [stderr] | [INFO] [stderr] 226 | fn test_proper_divisors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_sum_of_proper_divisors` [INFO] [stderr] --> src/factors.rs:238:5 [INFO] [stderr] | [INFO] [stderr] 238 | fn test_sum_of_proper_divisors() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.56s [INFO] running `"docker" "inspect" "5cbfc5b8a4a32f06991e28ef2ed55d15b1717d0e0a78b662938f70f01154ccc7"` [INFO] running `"docker" "rm" "-f" "5cbfc5b8a4a32f06991e28ef2ed55d15b1717d0e0a78b662938f70f01154ccc7"` [INFO] [stdout] 5cbfc5b8a4a32f06991e28ef2ed55d15b1717d0e0a78b662938f70f01154ccc7