[INFO] cloning repository https://github.com/lorien/euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lorien/euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Florien%2Feuler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Florien%2Feuler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 473e1a4ff8e946f5842c3a2e197079e923f07529
[INFO] checking lorien/euler against master#8f08b3a32478b8d0507732800ecb548a76e0fd0c for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Florien%2Feuler" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lorien/euler
[INFO] finished tweaking git repo https://github.com/lorien/euler
[INFO] tweaked toml for git repo https://github.com/lorien/euler written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lorien/euler on toolchain 8f08b3a32478b8d0507732800ecb548a76e0fd0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lorien/euler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f38f88327ab233fc0f4109c4c43c99ed90472091e63345c8c6c3df708016446
[INFO] running `Command { std: "docker" "start" "-a" "1f38f88327ab233fc0f4109c4c43c99ed90472091e63345c8c6c3df708016446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f38f88327ab233fc0f4109c4c43c99ed90472091e63345c8c6c3df708016446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f38f88327ab233fc0f4109c4c43c99ed90472091e63345c8c6c3df708016446", kill_on_drop: false }`
[INFO] [stdout] 1f38f88327ab233fc0f4109c4c43c99ed90472091e63345c8c6c3df708016446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+8f08b3a32478b8d0507732800ecb548a76e0fd0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39d57ad5c140fc82c9fb579242463e5f2d9eaa82202e64f4db4bab0c3738fa85
[INFO] running `Command { std: "docker" "start" "-a" "39d57ad5c140fc82c9fb579242463e5f2d9eaa82202e64f4db4bab0c3738fa85", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.11
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking indexmap v2.8.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> examples/problem17.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |         if (num % 10 == 0) {
[INFO] [stdout]    |            ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 44 -         if (num % 10 == 0) {
[INFO] [stdout] 44 +         if num % 10 == 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `limit` should have an upper case name
[INFO] [stdout]   --> examples/problem10.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 |     const limit: i64 = TARGET;
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 36 -     const limit: i64 = TARGET;
[INFO] [stdout] 36 +     const LIMIT: i64 = TARGET;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]   --> examples/problem20.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn add(num1: &Vec<i32>, num2: &Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mult` is never used
[INFO] [stdout]   --> examples/problem20.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn mult(num1: &Vec<i32>, num2: &Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]   --> examples/problem23.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     for idx in 0..limit + 1 {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> examples/problem23.rs:55:15
[INFO] [stdout]    |
[INFO] [stdout] 55 |     for (idx, item) in non_sum.iter().enumerate() {
[INFO] [stdout]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print` is never used
[INFO] [stdout]  --> examples/problem23.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn print(num: i32) {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `day`
[INFO] [stdout]   --> examples/problem19.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut day = 1;
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/problem19.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let mut day = 1;
[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: unused variable: `power`
[INFO] [stdout]   --> examples/problem16.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     for power in 2..=1000 {
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_power`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `max_product` is never read
[INFO] [stdout]    --> examples/problem11.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |             max_product = product;
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `Command { std: "docker" "inspect" "39d57ad5c140fc82c9fb579242463e5f2d9eaa82202e64f4db4bab0c3738fa85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d57ad5c140fc82c9fb579242463e5f2d9eaa82202e64f4db4bab0c3738fa85", kill_on_drop: false }`
[INFO] [stdout] 39d57ad5c140fc82c9fb579242463e5f2d9eaa82202e64f4db4bab0c3738fa85