[INFO] cloning repository https://github.com/tsloughter/erls
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsloughter/erls" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsloughter%2Ferls", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsloughter%2Ferls'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dadfd593e158791b50d76bcbfcd37441f74d1267
[INFO] checking tsloughter/erls against try#2cbf9c3ff35600794d69a7dc7ab399810a067910 for pr-129249-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsloughter%2Ferls" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsloughter/erls
[INFO] finished tweaking git repo https://github.com/tsloughter/erls
[INFO] tweaked toml for git repo https://github.com/tsloughter/erls written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsloughter/erls on toolchain 2cbf9c3ff35600794d69a7dc7ab399810a067910
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsloughter/erls 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" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b
[INFO] running `Command { std: "docker" "start" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b", 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" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b", 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" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b" "/opt/rustwide/cargo-home/bin/cargo" "+2cbf9c3ff35600794d69a7dc7ab399810a067910" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking rand_os v0.1.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clicolors-control v1.0.0
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking tar v0.4.20
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking console v0.7.5
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking erls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/config.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     for s in erls {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     for s in erls {
[INFO] [stdout] 46 +     while let Some(s) = erls {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 46 -     for s in erls {
[INFO] [stdout] 46 +     if let Some(s) = erls {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> src/config.rs:46:14
[INFO] [stdout]    |
[INFO] [stdout] 46 |     for s in erls {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]    |
[INFO] [stdout] 46 -     for s in erls {
[INFO] [stdout] 46 +     while let Some(s) = erls {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 46 -     for s in erls {
[INFO] [stdout] 46 +     if let Some(s) = erls {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.76s
[INFO] running `Command { std: "docker" "inspect" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b", kill_on_drop: false }`
[INFO] [stdout] e7bf3831643d616f4a30c5069f3ec1ad4ed03b4353a8efe4d31b4ad33ff2931b
