[INFO] updating cached repository akky2501/Ruml
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/akky2501/Ruml
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/akky2501/Ruml" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/akky2501/Ruml"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/akky2501/Ruml'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/akky2501/Ruml" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb84680a5dec0dde3d2fb0718267528f27fd9931
[INFO] sha for GitHub repo akky2501/Ruml: cb84680a5dec0dde3d2fb0718267528f27fd9931
[INFO] validating manifest of akky2501/Ruml on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of akky2501/Ruml on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing akky2501/Ruml
[INFO] finished frobbing akky2501/Ruml
[INFO] frobbed toml for akky2501/Ruml written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/akky2501/Ruml/Cargo.toml
[INFO] started frobbing akky2501/Ruml
[INFO] finished frobbing akky2501/Ruml
[INFO] frobbed toml for akky2501/Ruml written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml/Cargo.toml
[INFO] crate akky2501/Ruml has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing akky2501/Ruml against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 8eed294f5b437360b93b13ad2eaced6cf77fc1fd36ab2c7881b681214478b6a9
[INFO] running `"docker" "start" "-a" "8eed294f5b437360b93b13ad2eaced6cf77fc1fd36ab2c7881b681214478b6a9"`
[INFO] [stderr]    Compiling pom v1.0.1
[INFO] [stderr]    Compiling Ruml v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/typing.rs:667:9
[INFO] [stderr]     |
[INFO] [stderr] 667 |         _ => unimplemented!(),
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctor`
[INFO] [stderr]    --> src/mangling.rs:106:29
[INFO] [stderr]     |
[INFO] [stderr] 106 |         &mut Ctor { ref mut ctor, ref mut args , type_: _} => {
[INFO] [stderr]     |                             ^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/mangling.rs:211:36
[INFO] [stderr]     |
[INFO] [stderr] 211 |         &mut DataDestruct{ ref mut data, ref mut args } => {
[INFO] [stderr]     |                                    ^^^^ help: try ignoring the field: `data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctor`
[INFO] [stderr]    --> src/typing.rs:692:29
[INFO] [stderr]     |
[INFO] [stderr] 692 |         &mut Ctor { ref mut ctor, ref mut args , ref mut type_} => {
[INFO] [stderr]     |                             ^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_`
[INFO] [stderr]    --> src/typing.rs:737:76
[INFO] [stderr]     |
[INFO] [stderr] 737 |         &mut LetTuple { ref mut names, ref mut expr, ref mut cont, ref mut type_} =>  {
[INFO] [stderr]     |                                                                            ^^^^^ help: try ignoring the field: `type_: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arms`
[INFO] [stderr]    --> src/eval.rs:246:32
[INFO] [stderr]     |
[INFO] [stderr] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stderr]     |                                ^^^^ help: try ignoring the field: `arms: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]    --> src/eval.rs:246:22
[INFO] [stderr]     |
[INFO] [stderr] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stderr]     |                      ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]   --> src/eval.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn remove(&self, key: &K) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ruml` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ruml`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.90s
[INFO] running `"docker" "inspect" "8eed294f5b437360b93b13ad2eaced6cf77fc1fd36ab2c7881b681214478b6a9"`
[INFO] running `"docker" "rm" "-f" "8eed294f5b437360b93b13ad2eaced6cf77fc1fd36ab2c7881b681214478b6a9"`
[INFO] [stdout] 8eed294f5b437360b93b13ad2eaced6cf77fc1fd36ab2c7881b681214478b6a9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7594eb950e67872bf71ef8f29670f6ee203ae62f57d2d25bceb2c8ebb61b1406
[INFO] running `"docker" "start" "-a" "7594eb950e67872bf71ef8f29670f6ee203ae62f57d2d25bceb2c8ebb61b1406"`
[INFO] [stderr]    Compiling Ruml v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/typing.rs:667:9
[INFO] [stderr]     |
[INFO] [stderr] 667 |         _ => unimplemented!(),
[INFO] [stderr]     |         ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctor`
[INFO] [stderr]    --> src/mangling.rs:106:29
[INFO] [stderr]     |
[INFO] [stderr] 106 |         &mut Ctor { ref mut ctor, ref mut args , type_: _} => {
[INFO] [stderr]     |                             ^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]    --> src/mangling.rs:211:36
[INFO] [stderr]     |
[INFO] [stderr] 211 |         &mut DataDestruct{ ref mut data, ref mut args } => {
[INFO] [stderr]     |                                    ^^^^ help: try ignoring the field: `data: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctor`
[INFO] [stderr]    --> src/typing.rs:692:29
[INFO] [stderr]     |
[INFO] [stderr] 692 |         &mut Ctor { ref mut ctor, ref mut args , ref mut type_} => {
[INFO] [stderr]     |                             ^^^^ help: try ignoring the field: `ctor: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_`
[INFO] [stderr]    --> src/typing.rs:737:76
[INFO] [stderr]     |
[INFO] [stderr] 737 |         &mut LetTuple { ref mut names, ref mut expr, ref mut cont, ref mut type_} =>  {
[INFO] [stderr]     |                                                                            ^^^^^ help: try ignoring the field: `type_: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arms`
[INFO] [stderr]    --> src/eval.rs:246:32
[INFO] [stderr]     |
[INFO] [stderr] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stderr]     |                                ^^^^ help: try ignoring the field: `arms: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expr`
[INFO] [stderr]    --> src/eval.rs:246:22
[INFO] [stderr]     |
[INFO] [stderr] 246 |         &Match { ref expr, ref arms , type_: _} => unimplemented!(),
[INFO] [stderr]     |                      ^^^^ help: try ignoring the field: `expr: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove`
[INFO] [stderr]   --> src/eval.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn remove(&self, key: &K) -> Option<V> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Ruml` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `ruml`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "7594eb950e67872bf71ef8f29670f6ee203ae62f57d2d25bceb2c8ebb61b1406"`
[INFO] running `"docker" "rm" "-f" "7594eb950e67872bf71ef8f29670f6ee203ae62f57d2d25bceb2c8ebb61b1406"`
[INFO] [stdout] 7594eb950e67872bf71ef8f29670f6ee203ae62f57d2d25bceb2c8ebb61b1406
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/akky2501/Ruml:/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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] d5bbd2a31c588ee135bb9187e2dac176f14df523ac69822db226b4f447cb9c44
[INFO] running `"docker" "start" "-a" "d5bbd2a31c588ee135bb9187e2dac176f14df523ac69822db226b4f447cb9c44"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/Ruml-cf7a381f1d43f5df
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d5bbd2a31c588ee135bb9187e2dac176f14df523ac69822db226b4f447cb9c44"`
[INFO] running `"docker" "rm" "-f" "d5bbd2a31c588ee135bb9187e2dac176f14df523ac69822db226b4f447cb9c44"`
[INFO] [stdout] d5bbd2a31c588ee135bb9187e2dac176f14df523ac69822db226b4f447cb9c44