[INFO] updating cached repository Arekkusuva/try-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Arekkusuva/try-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Arekkusuva/try-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/Arekkusuva/try-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Arekkusuva/try-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Arekkusuva/try-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 453065a21eca81b37b0511d5558c30272c961d5c
[INFO] sha for GitHub repo Arekkusuva/try-rust: 453065a21eca81b37b0511d5558c30272c961d5c
[INFO] validating manifest of Arekkusuva/try-rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Arekkusuva/try-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Arekkusuva/try-rust
[INFO] finished frobbing Arekkusuva/try-rust
[INFO] frobbed toml for Arekkusuva/try-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/Arekkusuva/try-rust/Cargo.toml
[INFO] started frobbing Arekkusuva/try-rust
[INFO] finished frobbing Arekkusuva/try-rust
[INFO] frobbed toml for Arekkusuva/try-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust/Cargo.toml
[INFO] crate Arekkusuva/try-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Arekkusuva/try-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6913663aac664731684b3b3ac8ba47bd86f89129d94fdd1a66edc2b13fb4d3be
[INFO] running `"docker" "start" "-a" "6913663aac664731684b3b3ac8ba47bd86f89129d94fdd1a66edc2b13fb4d3be"`
[INFO] [stderr]    Compiling serde v1.0.39
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling yaml-rust v0.4.0
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling flate2 v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.39
[INFO] [stderr]    Compiling serde_yaml v0.7.3
[INFO] [stderr]    Compiling serde_json v1.0.15
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling serde-value v0.5.2
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling log4rs v0.8.0
[INFO] [stderr]    Compiling zoma v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/watcher.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn update(&mut self, c: conf::Config) {
[INFO] [stderr]    |                              ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn start(&mut self, task_name: String) {
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:38:28
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn stop(&mut self, task_name: String) {
[INFO] [stderr]    |                            ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn status(&self, task_name: String) -> bool {
[INFO] [stderr]    |                          ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `"docker" "inspect" "6913663aac664731684b3b3ac8ba47bd86f89129d94fdd1a66edc2b13fb4d3be"`
[INFO] running `"docker" "rm" "-f" "6913663aac664731684b3b3ac8ba47bd86f89129d94fdd1a66edc2b13fb4d3be"`
[INFO] [stdout] 6913663aac664731684b3b3ac8ba47bd86f89129d94fdd1a66edc2b13fb4d3be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b9d0c107350bf62b8607ab44560acda7ebddf3aa85eae9cc63799c1383d69ea0
[INFO] running `"docker" "start" "-a" "b9d0c107350bf62b8607ab44560acda7ebddf3aa85eae9cc63799c1383d69ea0"`
[INFO] [stderr]    Compiling zoma v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> src/watcher.rs:28:30
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn update(&mut self, c: conf::Config) {
[INFO] [stderr]    |                              ^ help: consider prefixing with an underscore: `_c`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:33:29
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn start(&mut self, task_name: String) {
[INFO] [stderr]    |                             ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:38:28
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn stop(&mut self, task_name: String) {
[INFO] [stderr]    |                            ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `task_name`
[INFO] [stderr]   --> src/watcher.rs:45:26
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn status(&self, task_name: String) -> bool {
[INFO] [stderr]    |                          ^^^^^^^^^ help: consider prefixing with an underscore: `_task_name`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "b9d0c107350bf62b8607ab44560acda7ebddf3aa85eae9cc63799c1383d69ea0"`
[INFO] running `"docker" "rm" "-f" "b9d0c107350bf62b8607ab44560acda7ebddf3aa85eae9cc63799c1383d69ea0"`
[INFO] [stdout] b9d0c107350bf62b8607ab44560acda7ebddf3aa85eae9cc63799c1383d69ea0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Arekkusuva/try-rust:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c0ae396a0928e83b1fef42b95fe65103bf091b3d9adbd2fe69c25596715170dd
[INFO] running `"docker" "start" "-a" "c0ae396a0928e83b1fef42b95fe65103bf091b3d9adbd2fe69c25596715170dd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zoma-9dcb38a4493cebd4
[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" "c0ae396a0928e83b1fef42b95fe65103bf091b3d9adbd2fe69c25596715170dd"`
[INFO] running `"docker" "rm" "-f" "c0ae396a0928e83b1fef42b95fe65103bf091b3d9adbd2fe69c25596715170dd"`
[INFO] [stdout] c0ae396a0928e83b1fef42b95fe65103bf091b3d9adbd2fe69c25596715170dd