[INFO] cloning repository https://github.com/asafigan/rust-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/asafigan/rust-project-euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasafigan%2Frust-project-euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasafigan%2Frust-project-euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9aae5ddf8f4fad93ff7e2f1b85614b1535942bd4
[INFO] checking asafigan/rust-project-euler against master#cced03bfd61a304243a34504618ecec86c17063f for pr-157082
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasafigan%2Frust-project-euler" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/asafigan/rust-project-euler
[INFO] finished tweaking git repo https://github.com/asafigan/rust-project-euler
[INFO] tweaked toml for git repo https://github.com/asafigan/rust-project-euler written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/asafigan/rust-project-euler on toolchain cced03bfd61a304243a34504618ecec86c17063f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/asafigan/rust-project-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" "+cced03bfd61a304243a34504618ecec86c17063f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.1.54
[INFO] [stderr]   Downloaded chrono v0.4.6
[INFO] [stderr]   Downloaded num-integer v0.1.39
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded winapi v0.3.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e
[INFO] running `Command { std: "docker" "start" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking problem22 v0.1.0 (/opt/rustwide/workdir/problem22)
[INFO] [stderr]     Checking problem8 v0.1.0 (/opt/rustwide/workdir/problem8)
[INFO] [stderr]     Checking problem18 v0.1.0 (/opt/rustwide/workdir/problem18)
[INFO] [stderr]     Checking problem2 v0.1.0 (/opt/rustwide/workdir/problem2)
[INFO] [stderr]     Checking problem1 v0.1.0 (/opt/rustwide/workdir/problem1)
[INFO] [stderr]     Checking problem7 v0.1.0 (/opt/rustwide/workdir/problem7)
[INFO] [stderr]     Checking problem3 v0.1.0 (/opt/rustwide/workdir/problem3)
[INFO] [stderr]     Checking problem9 v0.1.0 (/opt/rustwide/workdir/problem9)
[INFO] [stderr]     Checking problem24 v0.1.0 (/opt/rustwide/workdir/problem24)
[INFO] [stderr]     Checking problem5 v0.1.0 (/opt/rustwide/workdir/problem5)
[INFO] [stderr]     Checking problem10 v0.1.0 (/opt/rustwide/workdir/problem10)
[INFO] [stdout] warning: enum `StaticOrDynamic` is never used
[INFO] [stdout]   --> problem22/src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum StaticOrDynamic {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> problem22/src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn test() -> Vec<StaticOrDynamic> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking problem4 v0.1.0 (/opt/rustwide/workdir/problem4)
[INFO] [stderr]     Checking problem11 v0.1.0 (/opt/rustwide/workdir/problem11)
[INFO] [stderr]     Checking problem21 v0.1.0 (/opt/rustwide/workdir/problem21)
[INFO] [stdout] warning: enum `StaticOrDynamic` is never used
[INFO] [stdout]   --> problem22/src/main.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum StaticOrDynamic {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> problem22/src/main.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn test() -> Vec<StaticOrDynamic> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking problem6 v0.1.0 (/opt/rustwide/workdir/problem6)
[INFO] [stderr]     Checking problem67 v0.1.0 (/opt/rustwide/workdir/problem67)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> problem67/src/main.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             {last_row.collect::<Vec<_>>()},
[INFO] [stdout]     |             ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 122 -             {last_row.collect::<Vec<_>>()},
[INFO] [stdout] 122 +             last_row.collect::<Vec<_>>() ,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> problem67/src/main.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             {last_row.collect::<Vec<_>>()},
[INFO] [stdout]     |             ^                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 122 -             {last_row.collect::<Vec<_>>()},
[INFO] [stdout] 122 +             last_row.collect::<Vec<_>>() ,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking problem19 v0.1.0 (/opt/rustwide/workdir/problem19)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e", kill_on_drop: false }`
[INFO] [stdout] 54c77fc6005a813f18d1035e75280f105cf51063291d5d62c8e29930163f3a9e