[INFO] cloning repository https://github.com/robinsonj/project_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robinsonj/project_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonj%2Fproject_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonj%2Fproject_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba494a87e0c8f114cd0c9654564a56559da8d47d
[INFO] checking robinsonj/project_euler against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobinsonj%2Fproject_euler" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robinsonj/project_euler on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robinsonj/project_euler
[INFO] finished tweaking git repo https://github.com/robinsonj/project_euler
[INFO] tweaked toml for git repo https://github.com/robinsonj/project_euler written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/robinsonj/project_euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", 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] cca653d1f262da96697344db36c664b1fda13c62a164d8171923d8291f2ca732
[INFO] running `Command { std: "docker" "start" "-a" "cca653d1f262da96697344db36c664b1fda13c62a164d8171923d8291f2ca732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cca653d1f262da96697344db36c664b1fda13c62a164d8171923d8291f2ca732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca653d1f262da96697344db36c664b1fda13c62a164d8171923d8291f2ca732", kill_on_drop: false }`
[INFO] [stdout] cca653d1f262da96697344db36c664b1fda13c62a164d8171923d8291f2ca732
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 208fc81f92eaf53525418a6487aca83b991335ccbc9e93627392b2798b97ae6f
[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" "208fc81f92eaf53525418a6487aca83b991335ccbc9e93627392b2798b97ae6f", kill_on_drop: false }`
[INFO] [stderr]     Checking euler_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/math/primes/mod.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 |     2 ... 3         => true,
[INFO] [stdout]     |       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/math/primes/mod.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 |     2 ... 3         => true,
[INFO] [stdout]     |       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/solver/mod.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |       SolverFunction::FunctionWithFile(file_name, solve) => {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_name`
[INFO] [stdout]   --> src/solver/mod.rs:39:40
[INFO] [stdout]    |
[INFO] [stdout] 39 |       SolverFunction::FunctionWithFile(file_name, solve) => {
[INFO] [stdout]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FunctionWithFile`
[INFO] [stdout]  --> src/solver/mod.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   FunctionWithFile(&'a str, fn() -> String)
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `FunctionWithFile`
[INFO] [stdout]  --> src/solver/mod.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 |   FunctionWithFile(&'a str, fn() -> String)
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "208fc81f92eaf53525418a6487aca83b991335ccbc9e93627392b2798b97ae6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "208fc81f92eaf53525418a6487aca83b991335ccbc9e93627392b2798b97ae6f", kill_on_drop: false }`
[INFO] [stdout] 208fc81f92eaf53525418a6487aca83b991335ccbc9e93627392b2798b97ae6f