[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-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/akky2501/Ruml"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/akky2501/Ruml'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/akky2501/Ruml" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/akky2501/Ruml"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/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#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of akky2501/Ruml on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-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-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/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-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/akky2501/Ruml/Cargo.toml
[INFO] crate akky2501/Ruml already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking akky2501/Ruml against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-0/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b12d34911c138d3448a613a85915c02135779ffa42163d5d418ab030fa899619
[INFO] running `"docker" "start" "-a" "b12d34911c138d3448a613a85915c02135779ffa42163d5d418ab030fa899619"`
[INFO] [stderr]     Checking pom v1.0.1
[INFO] [stderr]     Checking 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]     |                     --------^^^^
[INFO] [stderr]     |                     |
[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]     |                            --------^^^^
[INFO] [stderr]     |                            |
[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]     |                     --------^^^^
[INFO] [stderr]     |                     |
[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]     |                                                                    --------^^^^^
[INFO] [stderr]     |                                                                    |
[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]     |                            ----^^^^
[INFO] [stderr]     |                            |
[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]     |                  ----^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: try ignoring the field: `expr: _`
[INFO] [stderr] 
[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]     |                     --------^^^^
[INFO] [stderr]     |                     |
[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]     |                            --------^^^^
[INFO] [stderr]     |                            |
[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]     |                     --------^^^^
[INFO] [stderr]     |                     |
[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]     |                                                                    --------^^^^^
[INFO] [stderr]     |                                                                    |
[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]     |                            ----^^^^
[INFO] [stderr]     |                            |
[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]     |                  ----^^^^
[INFO] [stderr]     |                  |
[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] 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 3.44s
[INFO] running `"docker" "inspect" "b12d34911c138d3448a613a85915c02135779ffa42163d5d418ab030fa899619"`
[INFO] running `"docker" "rm" "-f" "b12d34911c138d3448a613a85915c02135779ffa42163d5d418ab030fa899619"`
[INFO] [stdout] b12d34911c138d3448a613a85915c02135779ffa42163d5d418ab030fa899619