[INFO] cloning repository moratorium08/moo
[INFO] running `"git" "clone" "--bare" "git://github.com/moratorium08/moo.git" "work/cache/sources/gh/moratorium08/moo"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/moratorium08/moo'...
[INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/moo" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/moratorium08/moo"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/moratorium08/moo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/moo" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/moratorium08/moo"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/moratorium08/moo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] afb34d135dea862de6ba19a665216f579ee24bb8
[INFO] sha for GitHub repo moratorium08/moo: afb34d135dea862de6ba19a665216f579ee24bb8
[INFO] validating manifest of moratorium08/moo on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of moratorium08/moo on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing moratorium08/moo
[INFO] finished frobbing moratorium08/moo
[INFO] frobbed toml for moratorium08/moo written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/moratorium08/moo/Cargo.toml
[INFO] started frobbing moratorium08/moo
[INFO] finished frobbing moratorium08/moo
[INFO] frobbed toml for moratorium08/moo written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/moratorium08/moo/Cargo.toml
[INFO] crate moratorium08/moo has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking moratorium08/moo against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-2/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/moratorium08/moo:/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" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ea171ac377780757f2a7b71daf134e7bdf40be9f041c4e5a8a63d0702adf7865
[INFO] running `"docker" "start" "-a" "ea171ac377780757f2a7b71daf134e7bdf40be9f041c4e5a8a63d0702adf7865"`
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking stst v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::getchar`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use libc::getchar;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::Chars`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libc::getchar`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use libc::getchar;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/main.rs:164:21
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 let frame: &mut Frame = &mut env[n - 1];
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/main.rs:354:41
[INFO] [stderr]     |
[INFO] [stderr] 354 |                                 let mut v: Vec<(ID, ID)> = Vec::new();
[INFO] [stderr]     |                                         ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:366:38
[INFO] [stderr]     |
[INFO] [stderr] 366 |                     Some(Value::List(c)) => {
[INFO] [stderr]     |                                      ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `nest` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:512:13
[INFO] [stderr]     |
[INFO] [stderr] 512 |     let mut nest = 0;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_nest` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `frame`
[INFO] [stderr]    --> src/main.rs:164:21
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 let frame: &mut Frame = &mut env[n - 1];
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_frame`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]    --> src/main.rs:354:41
[INFO] [stderr]     |
[INFO] [stderr] 354 |                                 let mut v: Vec<(ID, ID)> = Vec::new();
[INFO] [stderr]     |                                         ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]    --> src/main.rs:366:38
[INFO] [stderr]     |
[INFO] [stderr] 366 |                     Some(Value::List(c)) => {
[INFO] [stderr]     |                                      ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `nest` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:512:13
[INFO] [stderr]     |
[INFO] [stderr] 512 |     let mut nest = 0;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_nest` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:623:5
[INFO] [stderr]     |
[INFO] [stderr] 623 |     f.read_to_string(&mut code);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:623:5
[INFO] [stderr]     |
[INFO] [stderr] 623 |     f.read_to_string(&mut code);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `"docker" "inspect" "ea171ac377780757f2a7b71daf134e7bdf40be9f041c4e5a8a63d0702adf7865"`
[INFO] running `"docker" "rm" "-f" "ea171ac377780757f2a7b71daf134e7bdf40be9f041c4e5a8a63d0702adf7865"`
[INFO] [stdout] ea171ac377780757f2a7b71daf134e7bdf40be9f041c4e5a8a63d0702adf7865