[INFO] updating cached repository vaithak/scp-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vaithak/scp-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vaithak/scp-rust" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/vaithak/scp-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/vaithak/scp-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vaithak/scp-rust" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/vaithak/scp-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/vaithak/scp-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 47cf0dc49873a5a66399ae4fdb9cde2187dd91bf
[INFO] sha for GitHub repo vaithak/scp-rust: 47cf0dc49873a5a66399ae4fdb9cde2187dd91bf
[INFO] validating manifest of vaithak/scp-rust on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vaithak/scp-rust on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vaithak/scp-rust
[INFO] finished frobbing vaithak/scp-rust
[INFO] frobbed toml for vaithak/scp-rust written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/vaithak/scp-rust/Cargo.toml
[INFO] started frobbing vaithak/scp-rust
[INFO] finished frobbing vaithak/scp-rust
[INFO] frobbed toml for vaithak/scp-rust written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/vaithak/scp-rust/Cargo.toml
[INFO] crate vaithak/scp-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vaithak/scp-rust against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/vaithak/scp-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 60e99489388d38f4f7ba6ef2fac4d08d92f9b350f51cdfe563c8927d82b82f50
[INFO] running `"docker" "start" "-a" "60e99489388d38f4f7ba6ef2fac4d08d92f9b350f51cdfe563c8927d82b82f50"`
[INFO] [stderr]     Checking walkdir v2.2.6
[INFO] [stderr]     Checking scp v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `dest_path`
[INFO] [stderr]  --> src/main.rs:9:40
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn recursive_copy(source_path: String, dest_path: String) {
[INFO] [stderr]   |                                        ^^^^^^^^^ help: consider prefixing with an underscore: `_dest_path`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dest_path`
[INFO] [stderr]  --> src/main.rs:9:40
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn recursive_copy(source_path: String, dest_path: String) {
[INFO] [stderr]   |                                        ^^^^^^^^^ help: consider prefixing with an underscore: `_dest_path`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fs::copy(source_path, dest_path);  // Copy foo.txt to bar.txt
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fs::copy(source_path, dest_path);  // Copy foo.txt to bar.txt
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "60e99489388d38f4f7ba6ef2fac4d08d92f9b350f51cdfe563c8927d82b82f50"`
[INFO] running `"docker" "rm" "-f" "60e99489388d38f4f7ba6ef2fac4d08d92f9b350f51cdfe563c8927d82b82f50"`
[INFO] [stdout] 60e99489388d38f4f7ba6ef2fac4d08d92f9b350f51cdfe563c8927d82b82f50