[INFO] updating cached repository nbouscal/kilo.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nbouscal/kilo.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nbouscal/kilo.rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nbouscal/kilo.rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nbouscal/kilo.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nbouscal/kilo.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a75269e2af8701283fb4859eca35acc8b0e84028
[INFO] sha for GitHub repo nbouscal/kilo.rs: a75269e2af8701283fb4859eca35acc8b0e84028
[INFO] validating manifest of nbouscal/kilo.rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nbouscal/kilo.rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nbouscal/kilo.rs
[INFO] finished frobbing nbouscal/kilo.rs
[INFO] frobbed toml for nbouscal/kilo.rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.rs/Cargo.toml
[INFO] started frobbing nbouscal/kilo.rs
[INFO] finished frobbing nbouscal/kilo.rs
[INFO] frobbed toml for nbouscal/kilo.rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nbouscal/kilo.rs/Cargo.toml
[INFO] crate nbouscal/kilo.rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nbouscal/kilo.rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.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=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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 8b3f6604b974779fcf9ec19343b1edcd518c843e4f87e0187da583a00debcb7a
[INFO] running `"docker" "start" "-a" "8b3f6604b974779fcf9ec19343b1edcd518c843e4f87e0187da583a00debcb7a"`
[INFO] [stderr]    Compiling kilo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/editor/mod.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |             let mut current_row = self.current_row_mut().unwrap();
[INFO] [stderr]    |                 ----^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `"docker" "inspect" "8b3f6604b974779fcf9ec19343b1edcd518c843e4f87e0187da583a00debcb7a"`
[INFO] running `"docker" "rm" "-f" "8b3f6604b974779fcf9ec19343b1edcd518c843e4f87e0187da583a00debcb7a"`
[INFO] [stdout] 8b3f6604b974779fcf9ec19343b1edcd518c843e4f87e0187da583a00debcb7a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.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=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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 197c909f798b724de5dfd8bd00316583c6aebe9924d346c505afc1c990bfa0ac
[INFO] running `"docker" "start" "-a" "197c909f798b724de5dfd8bd00316583c6aebe9924d346c505afc1c990bfa0ac"`
[INFO] [stderr]    Compiling kilo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/editor/mod.rs:93:17
[INFO] [stderr]    |
[INFO] [stderr] 93 |             let mut current_row = self.current_row_mut().unwrap();
[INFO] [stderr]    |                 ----^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "197c909f798b724de5dfd8bd00316583c6aebe9924d346c505afc1c990bfa0ac"`
[INFO] running `"docker" "rm" "-f" "197c909f798b724de5dfd8bd00316583c6aebe9924d346c505afc1c990bfa0ac"`
[INFO] [stdout] 197c909f798b724de5dfd8bd00316583c6aebe9924d346c505afc1c990bfa0ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nbouscal/kilo.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=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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] dd70a2fbf0fa760166884b360e0cbad6fc8ee548a8bd50349f9a2a2bda43cf56
[INFO] running `"docker" "start" "-a" "dd70a2fbf0fa760166884b360e0cbad6fc8ee548a8bd50349f9a2a2bda43cf56"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kilo-28fdeefc9a356c5a
[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" "dd70a2fbf0fa760166884b360e0cbad6fc8ee548a8bd50349f9a2a2bda43cf56"`
[INFO] running `"docker" "rm" "-f" "dd70a2fbf0fa760166884b360e0cbad6fc8ee548a8bd50349f9a2a2bda43cf56"`
[INFO] [stdout] dd70a2fbf0fa760166884b360e0cbad6fc8ee548a8bd50349f9a2a2bda43cf56