[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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/FeanorTheElf/RustSimonLib"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/FeanorTheElf/RustSimonLib'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FeanorTheElf/RustSimonLib" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/FeanorTheElf/RustSimonLib"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/FeanorTheElf/RustSimonLib'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8082b8bf5f24f1fd25f4c24b9ebb7059b6dbbfae
[INFO] sha for GitHub repo FeanorTheElf/RustSimonLib: 8082b8bf5f24f1fd25f4c24b9ebb7059b6dbbfae
[INFO] validating manifest of FeanorTheElf/RustSimonLib on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FeanorTheElf/RustSimonLib on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-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-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/FeanorTheElf/RustSimonLib/Cargo.toml
[INFO] crate FeanorTheElf/RustSimonLib already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking FeanorTheElf/RustSimonLib against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/FeanorTheElf/RustSimonLib:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e12396708aa2fc088ca9c204bfb5311766cc3a0edb22e8a5d273525e1ee54e61
[INFO] running `"docker" "start" "-a" "e12396708aa2fc088ca9c204bfb5311766cc3a0edb22e8a5d273525e1ee54e61"`
[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: 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: 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]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `"docker" "inspect" "e12396708aa2fc088ca9c204bfb5311766cc3a0edb22e8a5d273525e1ee54e61"`
[INFO] running `"docker" "rm" "-f" "e12396708aa2fc088ca9c204bfb5311766cc3a0edb22e8a5d273525e1ee54e61"`
[INFO] [stdout] e12396708aa2fc088ca9c204bfb5311766cc3a0edb22e8a5d273525e1ee54e61