[INFO] cloning repository https://github.com/Venats/file_sync
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Venats/file_sync" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Ffile_sync", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Ffile_sync'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49b590b92bdc90791f39d25d6db666fdd2114ea0
[INFO] checking Venats/file_sync against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenats%2Ffile_sync" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Venats/file_sync on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Venats/file_sync
[INFO] finished tweaking git repo https://github.com/Venats/file_sync
[INFO] tweaked toml for git repo https://github.com/Venats/file_sync written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Venats/file_sync already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99e8b584d745ff30af186a600c09ed5af752e0d8cf1f37f056700ef239ce8a5d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99e8b584d745ff30af186a600c09ed5af752e0d8cf1f37f056700ef239ce8a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e8b584d745ff30af186a600c09ed5af752e0d8cf1f37f056700ef239ce8a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e8b584d745ff30af186a600c09ed5af752e0d8cf1f37f056700ef239ce8a5d", kill_on_drop: false }`
[INFO] [stdout] 99e8b584d745ff30af186a600c09ed5af752e0d8cf1f37f056700ef239ce8a5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2888561eedd20fadc33a3f585f21f4c94bf8c7a128a432a09be1d27a29ce789b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2888561eedd20fadc33a3f585f21f4c94bf8c7a128a432a09be1d27a29ce789b", kill_on_drop: false }`
[INFO] [stderr]     Checking file_sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `src_file`
[INFO] [stdout]   --> src/main.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest_folder`
[INFO] [stdout]   --> src/main.rs:62:31
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_folder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `src_file`
[INFO] [stdout]   --> src/main.rs:62:14
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_src_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest_folder`
[INFO] [stdout]   --> src/main.rs:62:31
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_dest_folder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_file`
[INFO] [stdout]   --> src/main.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_file`
[INFO] [stdout]   --> src/main.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn copy_file(src_file: &Path, dest_folder: &Path) -> io::Result<()>
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "2888561eedd20fadc33a3f585f21f4c94bf8c7a128a432a09be1d27a29ce789b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2888561eedd20fadc33a3f585f21f4c94bf8c7a128a432a09be1d27a29ce789b", kill_on_drop: false }`
[INFO] [stdout] 2888561eedd20fadc33a3f585f21f4c94bf8c7a128a432a09be1d27a29ce789b