[INFO] updating cached repository https://github.com/AlmostAll/intro-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0bd0374a93f2d9ca62125c01ee6f0d032f49cd5c
[INFO] checking AlmostAll/intro-rs against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmostAll%2Fintro-rs" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlmostAll/intro-rs on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AlmostAll/intro-rs
[INFO] finished tweaking git repo https://github.com/AlmostAll/intro-rs
[INFO] tweaked toml for git repo https://github.com/AlmostAll/intro-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/AlmostAll/intro-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d0f3d752ef14b5e4f6638745b522f568cf9fc828837e2075ff40e7b8bc6b9336
[INFO] running `"docker" "start" "-a" "d0f3d752ef14b5e4f6638745b522f568cf9fc828837e2075ff40e7b8bc6b9336"`
[INFO] [stderr]     Checking libc v0.2.24
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking unicode-segmentation v1.1.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.6.0
[INFO] [stderr]     Checking clap v2.25.0
[INFO] [stderr]     Checking intro-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::string::String`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::string::String;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::string::String`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::string::String;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/main.rs:43:19
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn handle_integer(input: i32) -> i32 {
[INFO] [stderr]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/main.rs:43:19
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn handle_integer(input: i32) -> i32 {
[INFO] [stderr]    |                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.02s
[INFO] running `"docker" "inspect" "d0f3d752ef14b5e4f6638745b522f568cf9fc828837e2075ff40e7b8bc6b9336"`
[INFO] running `"docker" "rm" "-f" "d0f3d752ef14b5e4f6638745b522f568cf9fc828837e2075ff40e7b8bc6b9336"`
[INFO] [stdout] d0f3d752ef14b5e4f6638745b522f568cf9fc828837e2075ff40e7b8bc6b9336