[INFO] updating cached repository mkilgore/rshell
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mkilgore/rshell
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mkilgore/rshell" "work/ex/beta-1.37-6/sources/1.36.0/gh/mkilgore/rshell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mkilgore/rshell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mkilgore/rshell" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4553cf1c2ecfc193a1fcbdf1044f5e9a6e54d131
[INFO] sha for GitHub repo mkilgore/rshell: 4553cf1c2ecfc193a1fcbdf1044f5e9a6e54d131
[INFO] validating manifest of mkilgore/rshell 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 mkilgore/rshell 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 mkilgore/rshell
[INFO] finished frobbing mkilgore/rshell
[INFO] frobbed toml for mkilgore/rshell written to work/ex/beta-1.37-6/sources/1.36.0/gh/mkilgore/rshell/Cargo.toml
[INFO] started frobbing mkilgore/rshell
[INFO] finished frobbing mkilgore/rshell
[INFO] frobbed toml for mkilgore/rshell written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell/Cargo.toml
[INFO] crate mkilgore/rshell 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 mkilgore/rshell against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ead1e78c8c854f042a30b08d0e3215e123ab4641e04b19d699aa6e1cfa93a620
[INFO] running `"docker" "start" "-a" "ead1e78c8c854f042a30b08d0e3215e123ab4641e04b19d699aa6e1cfa93a620"`
[INFO] [stderr]    Compiling rshell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/job_list.rs:38:44
[INFO] [stderr]    |
[INFO] [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
[INFO] [stderr]    |                                            ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/job.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
[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 1.76s
[INFO] running `"docker" "inspect" "ead1e78c8c854f042a30b08d0e3215e123ab4641e04b19d699aa6e1cfa93a620"`
[INFO] running `"docker" "rm" "-f" "ead1e78c8c854f042a30b08d0e3215e123ab4641e04b19d699aa6e1cfa93a620"`
[INFO] [stdout] ead1e78c8c854f042a30b08d0e3215e123ab4641e04b19d699aa6e1cfa93a620
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] a78b6b4a84646cd1e4823be599b4aef6c0e7c89bc5317e2c12cb3eb05fcc1423
[INFO] running `"docker" "start" "-a" "a78b6b4a84646cd1e4823be599b4aef6c0e7c89bc5317e2c12cb3eb05fcc1423"`
[INFO] [stderr]    Compiling rshell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/job_list.rs:38:44
[INFO] [stderr]    |
[INFO] [stderr] 38 |         self.list.push(Arc::new(Mutex::new((job))));
[INFO] [stderr]    |                                            ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/job.rs:80:22
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn parse_job(mut lex: &mut InputLexer) -> Option<Job> {
[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 0.88s
[INFO] running `"docker" "inspect" "a78b6b4a84646cd1e4823be599b4aef6c0e7c89bc5317e2c12cb3eb05fcc1423"`
[INFO] running `"docker" "rm" "-f" "a78b6b4a84646cd1e4823be599b4aef6c0e7c89bc5317e2c12cb3eb05fcc1423"`
[INFO] [stdout] a78b6b4a84646cd1e4823be599b4aef6c0e7c89bc5317e2c12cb3eb05fcc1423
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mkilgore/rshell:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] ff4a0dfd8779c6205badb911680a316e67a6d2200ca16ebad3a9444a4e1aba38
[INFO] running `"docker" "start" "-a" "ff4a0dfd8779c6205badb911680a316e67a6d2200ca16ebad3a9444a4e1aba38"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rshell-d5325117f09072c1
[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" "ff4a0dfd8779c6205badb911680a316e67a6d2200ca16ebad3a9444a4e1aba38"`
[INFO] running `"docker" "rm" "-f" "ff4a0dfd8779c6205badb911680a316e67a6d2200ca16ebad3a9444a4e1aba38"`
[INFO] [stdout] ff4a0dfd8779c6205badb911680a316e67a6d2200ca16ebad3a9444a4e1aba38