[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] testing lorien/euler against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Florien%2Feuler" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lorien/euler on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec976cac5765621ff588d3d1f40c70a842d613b287c6440f842aadc77c208ebc
[INFO] running `Command { std: "docker" "start" "-a" "ec976cac5765621ff588d3d1f40c70a842d613b287c6440f842aadc77c208ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec976cac5765621ff588d3d1f40c70a842d613b287c6440f842aadc77c208ebc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec976cac5765621ff588d3d1f40c70a842d613b287c6440f842aadc77c208ebc", kill_on_drop: false }`
[INFO] [stdout] ec976cac5765621ff588d3d1f40c70a842d613b287c6440f842aadc77c208ebc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06b33a9e7b2886b4aebe0f28bb008e02d5f58e6b726f28cb6ee9cf3e7696fdab
[INFO] running `Command { std: "docker" "start" "-a" "06b33a9e7b2886b4aebe0f28bb008e02d5f58e6b726f28cb6ee9cf3e7696fdab", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling indexmap v2.8.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.63s
[INFO] running `Command { std: "docker" "inspect" "06b33a9e7b2886b4aebe0f28bb008e02d5f58e6b726f28cb6ee9cf3e7696fdab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06b33a9e7b2886b4aebe0f28bb008e02d5f58e6b726f28cb6ee9cf3e7696fdab", kill_on_drop: false }`
[INFO] [stdout] 06b33a9e7b2886b4aebe0f28bb008e02d5f58e6b726f28cb6ee9cf3e7696fdab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5217c7969e3b7ec0d12ef17cafde36292d5df39a1ea3b66cfa395c79eb85319b
[INFO] running `Command { std: "docker" "start" "-a" "5217c7969e3b7ec0d12ef17cafde36292d5df39a1ea3b66cfa395c79eb85319b", kill_on_drop: false }`
[INFO] [stderr]    Compiling euler v0.1.0 (/opt/rustwide/workdir)
[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: 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] [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: 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: 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: 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: 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "5217c7969e3b7ec0d12ef17cafde36292d5df39a1ea3b66cfa395c79eb85319b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5217c7969e3b7ec0d12ef17cafde36292d5df39a1ea3b66cfa395c79eb85319b", kill_on_drop: false }`
[INFO] [stdout] 5217c7969e3b7ec0d12ef17cafde36292d5df39a1ea3b66cfa395c79eb85319b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1974c9f2890157243ec4265a142a92348afe9da8216d5c49b0450220358d0245
[INFO] running `Command { std: "docker" "start" "-a" "1974c9f2890157243ec4265a142a92348afe9da8216d5c49b0450220358d0245", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `power`
[INFO] [stderr]   --> examples/problem16.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for power in 2..=1000 {
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_power`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> examples/problem17.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 |         if (num % 10 == 0) {
[INFO] [stderr]    |            ^             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 44 -         if (num % 10 == 0) {
[INFO] [stderr] 44 +         if num % 10 == 0 {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `max_product` is never read
[INFO] [stderr]    --> examples/problem11.rs:132:13
[INFO] [stderr]     |
[INFO] [stderr] 132 |             max_product = product;
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `limit` should have an upper case name
[INFO] [stderr]   --> examples/problem10.rs:36:11
[INFO] [stderr]    |
[INFO] [stderr] 36 |     const limit: i64 = TARGET;
[INFO] [stderr]    |           ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] help: convert the identifier to upper case
[INFO] [stderr]    |
[INFO] [stderr] 36 -     const limit: i64 = TARGET;
[INFO] [stderr] 36 +     const LIMIT: i64 = TARGET;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]   --> examples/problem20.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn add(num1: &Vec<i32>, num2: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `mult` is never used
[INFO] [stderr]   --> examples/problem20.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn mult(num1: &Vec<i32>, num2: &Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]   --> examples/problem23.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     for idx in 0..limit + 1 {
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `item`
[INFO] [stderr]   --> examples/problem23.rs:55:15
[INFO] [stderr]    |
[INFO] [stderr] 55 |     for (idx, item) in non_sum.iter().enumerate() {
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stderr] 
[INFO] [stderr] warning: function `print` is never used
[INFO] [stderr]  --> examples/problem23.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn print(num: i32) {
[INFO] [stderr]   |    ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `euler` (example "problem16") generated 1 warning
[INFO] [stderr] warning: `euler` (example "problem17") generated 1 warning (run `cargo fix --example "problem17"` to apply 1 suggestion)
[INFO] [stderr] warning: `euler` (example "problem11") generated 1 warning
[INFO] [stderr] warning: `euler` (example "problem10") generated 1 warning (run `cargo fix --example "problem10"` to apply 1 suggestion)
[INFO] [stderr] warning: `euler` (example "problem20") generated 2 warnings
[INFO] [stderr] warning: `euler` (example "problem23") generated 3 warnings
[INFO] [stderr] warning: unused variable: `day`
[INFO] [stderr]   --> examples/problem19.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut day = 1;
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_day`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/problem19.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut day = 1;
[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: `euler` (example "problem19") generated 2 warnings (run `cargo fix --example "problem19"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/euler-7e58072fbc1fe0fa)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests euler
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1974c9f2890157243ec4265a142a92348afe9da8216d5c49b0450220358d0245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1974c9f2890157243ec4265a142a92348afe9da8216d5c49b0450220358d0245", kill_on_drop: false }`
[INFO] [stdout] 1974c9f2890157243ec4265a142a92348afe9da8216d5c49b0450220358d0245
