[INFO] updating cached repository mwalczyk/plume_watcher_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mwalczyk/plume_watcher_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mwalczyk/plume_watcher_rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/plume_watcher_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/plume_watcher_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mwalczyk/plume_watcher_rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/plume_watcher_rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/plume_watcher_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25b65ad05779b2c875d00230947d4eb7320ff16c
[INFO] sha for GitHub repo mwalczyk/plume_watcher_rs: 25b65ad05779b2c875d00230947d4eb7320ff16c
[INFO] validating manifest of mwalczyk/plume_watcher_rs 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 mwalczyk/plume_watcher_rs 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 mwalczyk/plume_watcher_rs
[INFO] finished frobbing mwalczyk/plume_watcher_rs
[INFO] frobbed toml for mwalczyk/plume_watcher_rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/mwalczyk/plume_watcher_rs/Cargo.toml
[INFO] started frobbing mwalczyk/plume_watcher_rs
[INFO] finished frobbing mwalczyk/plume_watcher_rs
[INFO] frobbed toml for mwalczyk/plume_watcher_rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mwalczyk/plume_watcher_rs/Cargo.toml
[INFO] crate mwalczyk/plume_watcher_rs 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 mwalczyk/plume_watcher_rs 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/mwalczyk/plume_watcher_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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 049ef909cf0f10cc54150c436936bff164a0e3a0fc3c14c83ee5db778d12a07d
[INFO] running `"docker" "start" "-a" "049ef909cf0f10cc54150c436936bff164a0e3a0fc3c14c83ee5db778d12a07d"`
[INFO] [stderr]    Compiling plume_watcher_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `help_dialog`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn help_dialog() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MAX_THREADS`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | static MAX_THREADS: i32 = 10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "049ef909cf0f10cc54150c436936bff164a0e3a0fc3c14c83ee5db778d12a07d"`
[INFO] running `"docker" "rm" "-f" "049ef909cf0f10cc54150c436936bff164a0e3a0fc3c14c83ee5db778d12a07d"`
[INFO] [stdout] 049ef909cf0f10cc54150c436936bff164a0e3a0fc3c14c83ee5db778d12a07d
[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/mwalczyk/plume_watcher_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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a05dcb57b655c560ce240347abe0104b5593d7482c1c4bdd59197033b77ec1dc
[INFO] running `"docker" "start" "-a" "a05dcb57b655c560ce240347abe0104b5593d7482c1c4bdd59197033b77ec1dc"`
[INFO] [stderr]    Compiling plume_watcher_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `help_dialog`
[INFO] [stderr]  --> src/main.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn help_dialog() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static item is never used: `MAX_THREADS`
[INFO] [stderr]   --> src/main.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | static MAX_THREADS: i32 = 10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "a05dcb57b655c560ce240347abe0104b5593d7482c1c4bdd59197033b77ec1dc"`
[INFO] running `"docker" "rm" "-f" "a05dcb57b655c560ce240347abe0104b5593d7482c1c4bdd59197033b77ec1dc"`
[INFO] [stdout] a05dcb57b655c560ce240347abe0104b5593d7482c1c4bdd59197033b77ec1dc
[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/mwalczyk/plume_watcher_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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 72ea343e669ad2e7b010285da4538754ae749a6312151e56382007e23bff6d83
[INFO] running `"docker" "start" "-a" "72ea343e669ad2e7b010285da4538754ae749a6312151e56382007e23bff6d83"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/plume_watcher_rs-0de12e9ea54fa5b7
[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" "72ea343e669ad2e7b010285da4538754ae749a6312151e56382007e23bff6d83"`
[INFO] running `"docker" "rm" "-f" "72ea343e669ad2e7b010285da4538754ae749a6312151e56382007e23bff6d83"`
[INFO] [stdout] 72ea343e669ad2e7b010285da4538754ae749a6312151e56382007e23bff6d83