[INFO] updating cached repository nicrgren/rsplacer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nicrgren/rsplacer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nicrgren/rsplacer" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nicrgren/rsplacer"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nicrgren/rsplacer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nicrgren/rsplacer" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nicrgren/rsplacer"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nicrgren/rsplacer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b05baf5cdba6d29175523f5fe43951aa7c812a93
[INFO] sha for GitHub repo nicrgren/rsplacer: b05baf5cdba6d29175523f5fe43951aa7c812a93
[INFO] validating manifest of nicrgren/rsplacer on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nicrgren/rsplacer on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nicrgren/rsplacer
[INFO] finished frobbing nicrgren/rsplacer
[INFO] frobbed toml for nicrgren/rsplacer written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nicrgren/rsplacer/Cargo.toml
[INFO] started frobbing nicrgren/rsplacer
[INFO] finished frobbing nicrgren/rsplacer
[INFO] frobbed toml for nicrgren/rsplacer written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nicrgren/rsplacer/Cargo.toml
[INFO] crate nicrgren/rsplacer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nicrgren/rsplacer against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nicrgren/rsplacer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 74097ae03933437d39f4cd54437eb446541d1dcd31e8e5bd5ada62523f55ab5a
[INFO] running `"docker" "start" "-a" "74097ae03933437d39f4cd54437eb446541d1dcd31e8e5bd5ada62523f55ab5a"`
[INFO] [stderr]     Checking clap v2.28.0
[INFO] [stderr]    Compiling structopt-derive v0.1.6
[INFO] [stderr]     Checking structopt v0.1.6
[INFO] [stderr]     Checking rsplacer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `ToFile`
[INFO] [stderr]  --> src/output.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ToFile(fs::File),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_file`
[INFO] [stderr]   --> src/output.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     pub fn to_file<T: AsRef<str>>(file_path: T)
[INFO] [stderr] 19 | |                                   -> Result<Output, Error> {
[INFO] [stderr] 20 | |         let file = fs::File::open(file_path.as_ref())?;
[INFO] [stderr] 21 | |
[INFO] [stderr] 22 | |         Ok(Output::ToFile(file))
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_replacer_from_arg_str`
[INFO] [stderr]    --> src/replacer.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 |     fn test_replacer_from_arg_str() {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ToFile`
[INFO] [stderr]  --> src/output.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     ToFile(fs::File),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_file`
[INFO] [stderr]   --> src/output.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     pub fn to_file<T: AsRef<str>>(file_path: T)
[INFO] [stderr] 19 | |                                   -> Result<Output, Error> {
[INFO] [stderr] 20 | |         let file = fs::File::open(file_path.as_ref())?;
[INFO] [stderr] 21 | |
[INFO] [stderr] 22 | |         Ok(Output::ToFile(file))
[INFO] [stderr] 23 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.82s
[INFO] running `"docker" "inspect" "74097ae03933437d39f4cd54437eb446541d1dcd31e8e5bd5ada62523f55ab5a"`
[INFO] running `"docker" "rm" "-f" "74097ae03933437d39f4cd54437eb446541d1dcd31e8e5bd5ada62523f55ab5a"`
[INFO] [stdout] 74097ae03933437d39f4cd54437eb446541d1dcd31e8e5bd5ada62523f55ab5a