[INFO] cloning repository FeanorTheElf/RustSimonLib
[INFO] running `"git" "clone" "--bare" "git://github.com/FeanorTheElf/RustSimonLib.git" "work/cache/sources/gh/FeanorTheElf/RustSimonLib"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/FeanorTheElf/RustSimonLib'...
[INFO] running `"git" "clone" "work/cache/sources/gh/FeanorTheElf/RustSimonLib" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/FeanorTheElf/RustSimonLib"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/FeanorTheElf/RustSimonLib'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FeanorTheElf/RustSimonLib" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/FeanorTheElf/RustSimonLib"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/FeanorTheElf/RustSimonLib'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 624132a3b1c7cab22fd5d9e75922958a13a15bfc
[INFO] sha for GitHub repo FeanorTheElf/RustSimonLib: 624132a3b1c7cab22fd5d9e75922958a13a15bfc
[INFO] validating manifest of FeanorTheElf/RustSimonLib on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FeanorTheElf/RustSimonLib on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing FeanorTheElf/RustSimonLib
[INFO] finished frobbing FeanorTheElf/RustSimonLib
[INFO] frobbed toml for FeanorTheElf/RustSimonLib written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/FeanorTheElf/RustSimonLib/Cargo.toml
[INFO] started frobbing FeanorTheElf/RustSimonLib
[INFO] finished frobbing FeanorTheElf/RustSimonLib
[INFO] frobbed toml for FeanorTheElf/RustSimonLib written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/FeanorTheElf/RustSimonLib/Cargo.toml
[INFO] crate FeanorTheElf/RustSimonLib already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking FeanorTheElf/RustSimonLib against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-5/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/FeanorTheElf/RustSimonLib:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 72e1e354a0344200012fe6a2653d4335967bcf1c44429bb0dbf0c35b44281fac
[INFO] running `"docker" "start" "-a" "72e1e354a0344200012fe6a2653d4335967bcf1c44429bb0dbf0c35b44281fac"`
[INFO] [stderr]     Checking simon_util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn expa(n: &i32) -> i32 {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]   --> src/main.rs:36:6
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let test = CheckDrop(String::from("foo"));
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_test`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn expa(n: &i32) -> i32 {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]   --> src/main.rs:36:6
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let test = CheckDrop(String::from("foo"));
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_test`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expa`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn expa(n: &i32) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expb`
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn expb(a: &i32, b: &i32, c: Option<&i32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expa`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn expa(n: &i32) -> i32 {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `expb`
[INFO] [stderr]   --> src/main.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn expb(a: &i32, b: &i32, c: Option<&i32>) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `"docker" "inspect" "72e1e354a0344200012fe6a2653d4335967bcf1c44429bb0dbf0c35b44281fac"`
[INFO] running `"docker" "rm" "-f" "72e1e354a0344200012fe6a2653d4335967bcf1c44429bb0dbf0c35b44281fac"`
[INFO] [stdout] 72e1e354a0344200012fe6a2653d4335967bcf1c44429bb0dbf0c35b44281fac