[INFO] updating cached repository pranith/rush
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pranith/rush
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pranith/rush" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/pranith/rush"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/pranith/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pranith/rush" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/pranith/rush"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/pranith/rush'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f3ff0211e1957fee8bc95202ce53bfe5d3f884a
[INFO] sha for GitHub repo pranith/rush: 0f3ff0211e1957fee8bc95202ce53bfe5d3f884a
[INFO] validating manifest of pranith/rush on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pranith/rush on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pranith/rush
[INFO] finished frobbing pranith/rush
[INFO] frobbed toml for pranith/rush written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/pranith/rush/Cargo.toml
[INFO] started frobbing pranith/rush
[INFO] finished frobbing pranith/rush
[INFO] frobbed toml for pranith/rush written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/pranith/rush/Cargo.toml
[INFO] crate pranith/rush already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pranith/rush against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-6/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/pranith/rush:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9e77e21af6db83f6aede7e15b326e2ffe3941e984e3ab457976f2cd4fb4a6880
[INFO] running `"docker" "start" "-a" "9e77e21af6db83f6aede7e15b326e2ffe3941e984e3ab457976f2cd4fb4a6880"`
[INFO] [stderr]     Checking rush v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> src/main.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 |   let path_buf = env::home_dir().unwrap();
[INFO] [stderr]   |                  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut subproc_with_args = subproc.args(&args);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/main.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   env::set_current_dir(&path).is_ok();
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]  --> src/main.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 |   let path_buf = env::home_dir().unwrap();
[INFO] [stderr]   |                  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut subproc_with_args = subproc.args(&args);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/main.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 |   env::set_current_dir(&path).is_ok();
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "9e77e21af6db83f6aede7e15b326e2ffe3941e984e3ab457976f2cd4fb4a6880"`
[INFO] running `"docker" "rm" "-f" "9e77e21af6db83f6aede7e15b326e2ffe3941e984e3ab457976f2cd4fb4a6880"`
[INFO] [stdout] 9e77e21af6db83f6aede7e15b326e2ffe3941e984e3ab457976f2cd4fb4a6880