[INFO] updating cached repository kenpratt/rusty_scheme
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kenpratt/rusty_scheme
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kenpratt/rusty_scheme" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kenpratt/rusty_scheme"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kenpratt/rusty_scheme'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kenpratt/rusty_scheme" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kenpratt/rusty_scheme"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kenpratt/rusty_scheme'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2020c424a065882e064cfee97341219e0da605fd
[INFO] sha for GitHub repo kenpratt/rusty_scheme: 2020c424a065882e064cfee97341219e0da605fd
[INFO] validating manifest of kenpratt/rusty_scheme on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kenpratt/rusty_scheme on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kenpratt/rusty_scheme
[INFO] finished frobbing kenpratt/rusty_scheme
[INFO] frobbed toml for kenpratt/rusty_scheme written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kenpratt/rusty_scheme/Cargo.toml
[INFO] started frobbing kenpratt/rusty_scheme
[INFO] finished frobbing kenpratt/rusty_scheme
[INFO] frobbed toml for kenpratt/rusty_scheme written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kenpratt/rusty_scheme/Cargo.toml
[INFO] crate kenpratt/rusty_scheme already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kenpratt/rusty_scheme against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kenpratt/rusty_scheme:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8aa24582354d785c6341749f601d55a7f9e3e419bb5e0cd59a7b7dc1385bed80
[INFO] running `"docker" "start" "-a" "8aa24582354d785c6341749f601d55a7f9e3e419bb5e0cd59a7b7dc1385bed80"`
[INFO] [stderr]     Checking libc v0.1.6
[INFO] [stderr]     Checking log v0.3.1
[INFO] [stderr]     Checking getopts v0.2.11
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.11/src/lib.rs:974:33
[INFO] [stderr]     |
[INFO] [stderr] 921 |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]     |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 925 |         state = match (state, whitespace, limit) {
[INFO] [stderr]     |         ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 974 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]     |                                 ^ use of borrowed `state`
[INFO] [stderr] 975 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]     |         ------- borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr] 
[INFO] [stderr]     Checking rusty_scheme v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:57:1
[INFO] [stderr]    |
[INFO] [stderr] 57 | / macro_rules! assert_execute_all {
[INFO] [stderr] 58 | |     ($src:expr, $res:expr) => (
[INFO] [stderr] 59 | |         assert_execute_ast_walk!($src, $res);
[INFO] [stderr] 60 | |         assert_execute_cps!($src, $res);
[INFO] [stderr] 61 | |     )
[INFO] [stderr] 62 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:64:1
[INFO] [stderr]    |
[INFO] [stderr] 64 | / macro_rules! assert_execute_fail_all {
[INFO] [stderr] 65 | |     ($src:expr, $res:expr) => (
[INFO] [stderr] 66 | |         assert_execute_fail_ast_walk!($src, $res);
[INFO] [stderr] 67 | |         assert_execute_fail_cps!($src, $res);
[INFO] [stderr] 68 | |     )
[INFO] [stderr] 69 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | / macro_rules! assert_execute_ast_walk {
[INFO] [stderr] 72 | |     ($src:expr, $res:expr) => (assert_eq!(interpreter::new("ast_walk").execute($src).unwrap(), $res));
[INFO] [stderr] 73 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:75:1
[INFO] [stderr]    |
[INFO] [stderr] 75 | / macro_rules! assert_execute_fail_ast_walk {
[INFO] [stderr] 76 | |     ($src:expr, $res:expr) => (assert_eq!(interpreter::new("ast_walk").execute($src).err().unwrap(), $res));
[INFO] [stderr] 77 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:79:1
[INFO] [stderr]    |
[INFO] [stderr] 79 | / macro_rules! assert_execute_cps {
[INFO] [stderr] 80 | |     ($src:expr, $res:expr) => (assert_eq!(interpreter::new("cps").execute($src).unwrap(), $res));
[INFO] [stderr] 81 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/main.rs:83:1
[INFO] [stderr]    |
[INFO] [stderr] 83 | / macro_rules! assert_execute_fail_cps {
[INFO] [stderr] 84 | |     ($src:expr, $res:expr) => (assert_eq!(interpreter::new("cps").execute($src).err().unwrap(), $res));
[INFO] [stderr] 85 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `"docker" "inspect" "8aa24582354d785c6341749f601d55a7f9e3e419bb5e0cd59a7b7dc1385bed80"`
[INFO] running `"docker" "rm" "-f" "8aa24582354d785c6341749f601d55a7f9e3e419bb5e0cd59a7b7dc1385bed80"`
[INFO] [stdout] 8aa24582354d785c6341749f601d55a7f9e3e419bb5e0cd59a7b7dc1385bed80