[INFO] cloning repository https://github.com/DarrenRJ/Euler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DarrenRJ/Euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2669d3f7afa22fcb93de70fcc0a8d4fb10a4f483 [INFO] checking DarrenRJ/Euler against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/DarrenRJ/Euler on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-0/source/Cargo.toml [INFO] crate git repo https://github.com/DarrenRJ/Euler already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded primal-check v0.2.2 [INFO] [stderr] Downloaded primal-estimate v0.2.1 [INFO] [stderr] Downloaded primal-bit v0.2.4 [INFO] [stderr] Downloaded primal-sieve v0.2.7 [INFO] [stderr] Downloaded primal v0.2.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 18bb648bf9799ca4b413540c2e49002e4252cb6ae703617afa681ba3a3116b22 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "18bb648bf9799ca4b413540c2e49002e4252cb6ae703617afa681ba3a3116b22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "18bb648bf9799ca4b413540c2e49002e4252cb6ae703617afa681ba3a3116b22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "18bb648bf9799ca4b413540c2e49002e4252cb6ae703617afa681ba3a3116b22", kill_on_drop: false }` [INFO] [stdout] 18bb648bf9799ca4b413540c2e49002e4252cb6ae703617afa681ba3a3116b22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bc955bed847764845ff898dd20e328a193ce4e12f4b791038644cc13133fd064 [INFO] running `Command { std: "docker" "start" "-a" "bc955bed847764845ff898dd20e328a193ce4e12f4b791038644cc13133fd064", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.33 [INFO] [stderr] Checking hamming v0.1.3 [INFO] [stderr] Checking primal-estimate v0.2.1 [INFO] [stderr] Checking smallvec v0.4.4 [INFO] [stderr] Checking num-complex v0.1.40 [INFO] [stderr] Checking primal-bit v0.2.4 [INFO] [stderr] Checking primal-sieve v0.2.7 [INFO] [stderr] Checking rand v0.3.17 [INFO] [stderr] Checking time v0.1.38 [INFO] [stderr] Checking num-bigint v0.1.40 [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2117:25 [INFO] [stdout] | [INFO] [stdout] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2354:13 [INFO] [stdout] | [INFO] [stdout] 2354 | let mut a = 100-i; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2357:17 [INFO] [stdout] | [INFO] [stdout] 2357 | let mut b = 100-j; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2117:25 [INFO] [stdout] | [INFO] [stdout] 2117 | let mut candidate : usize = generate_candidate( i, last_digit[k], pattern, replacment ); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2354:13 [INFO] [stdout] | [INFO] [stdout] 2354 | let mut a = 100-i; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solutions.rs:2357:17 [INFO] [stdout] | [INFO] [stdout] 2357 | let mut b = 100-j; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_factors` [INFO] [stdout] --> src/factors.rs:205:8 [INFO] [stdout] | [INFO] [stdout] 205 | fn test_factors() [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_divisor_count` [INFO] [stdout] --> src/factors.rs:215:8 [INFO] [stdout] | [INFO] [stdout] 215 | fn test_divisor_count() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_proper_divisors` [INFO] [stdout] --> src/factors.rs:226:8 [INFO] [stdout] | [INFO] [stdout] 226 | fn test_proper_divisors() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_sum_of_proper_divisors` [INFO] [stdout] --> src/factors.rs:238:8 [INFO] [stdout] | [INFO] [stdout] 238 | fn test_sum_of_proper_divisors() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.19s [INFO] running `Command { std: "docker" "inspect" "bc955bed847764845ff898dd20e328a193ce4e12f4b791038644cc13133fd064", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc955bed847764845ff898dd20e328a193ce4e12f4b791038644cc13133fd064", kill_on_drop: false }` [INFO] [stdout] bc955bed847764845ff898dd20e328a193ce4e12f4b791038644cc13133fd064