[INFO] updating cached repository CastellaFactory/esma-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/CastellaFactory/esma-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/CastellaFactory/esma-rs" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CastellaFactory/esma-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CastellaFactory/esma-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/CastellaFactory/esma-rs" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CastellaFactory/esma-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CastellaFactory/esma-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6e78c13333d6187b74a42f8e9ff3ae67d63300e
[INFO] sha for GitHub repo CastellaFactory/esma-rs: b6e78c13333d6187b74a42f8e9ff3ae67d63300e
[INFO] validating manifest of CastellaFactory/esma-rs on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of CastellaFactory/esma-rs on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing CastellaFactory/esma-rs
[INFO] finished frobbing CastellaFactory/esma-rs
[INFO] frobbed toml for CastellaFactory/esma-rs written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/CastellaFactory/esma-rs/Cargo.toml
[INFO] started frobbing CastellaFactory/esma-rs
[INFO] finished frobbing CastellaFactory/esma-rs
[INFO] frobbed toml for CastellaFactory/esma-rs written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CastellaFactory/esma-rs/Cargo.toml
[INFO] crate CastellaFactory/esma-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking CastellaFactory/esma-rs against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-3/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/CastellaFactory/esma-rs:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 667f151bbb314e9dcba2abd8b8085a5817fde150c5bc949583961e6436e1fd4e
[INFO] running `"docker" "start" "-a" "667f151bbb314e9dcba2abd8b8085a5817fde150c5bc949583961e6436e1fd4e"`
[INFO] [stderr]     Checking memmap v0.5.2
[INFO] [stderr]     Checking toml v0.4.0
[INFO] [stderr]     Checking clap v2.24.0
[INFO] [stderr]     Checking esma-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `App`, `Arg`
[INFO] [stderr]  --> src/main.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{Arg, App};
[INFO] [stderr]   |            ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Mmap`, `Protection`
[INFO] [stderr]  --> src/runner.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | use memmap::{Mmap, Protection};
[INFO] [stderr]   |              ^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arg`
[INFO] [stderr]  --> src/options.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use clap::{Arg, App};
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `App`, `Arg`
[INFO] [stderr]  --> src/main.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 | use clap::{Arg, App};
[INFO] [stderr]   |            ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Mmap`, `Protection`
[INFO] [stderr]  --> src/runner.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | use memmap::{Mmap, Protection};
[INFO] [stderr]   |              ^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arg`
[INFO] [stderr]  --> src/options.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use clap::{Arg, App};
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opts`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let opts = Options::parse();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_opts`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer`
[INFO] [stderr]   --> src/runner.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let timer = Timer::new(algo);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_timer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]  --> src/options.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let m = App::new("esma-rs")
[INFO] [stderr]   |             ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start`
[INFO] [stderr]   --> src/grep.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn start(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opts`
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let opts = Options::parse();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_opts`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timer`
[INFO] [stderr]   --> src/runner.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |         let timer = Timer::new(algo);
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_timer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]  --> src/options.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let m = App::new("esma-rs")
[INFO] [stderr]   |             ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `start`
[INFO] [stderr]   --> src/grep.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn start(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.89s
[INFO] running `"docker" "inspect" "667f151bbb314e9dcba2abd8b8085a5817fde150c5bc949583961e6436e1fd4e"`
[INFO] running `"docker" "rm" "-f" "667f151bbb314e9dcba2abd8b8085a5817fde150c5bc949583961e6436e1fd4e"`
[INFO] [stdout] 667f151bbb314e9dcba2abd8b8085a5817fde150c5bc949583961e6436e1fd4e