[INFO] updating cached repository pzmarzly/ffserver-daemon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pzmarzly/ffserver-daemon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pzmarzly/ffserver-daemon" "work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pzmarzly/ffserver-daemon" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pzmarzly/ffserver-daemon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pzmarzly/ffserver-daemon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1da703bfde9571e378475fd1e25b89318d7f744a
[INFO] sha for GitHub repo pzmarzly/ffserver-daemon: 1da703bfde9571e378475fd1e25b89318d7f744a
[INFO] validating manifest of pzmarzly/ffserver-daemon 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 pzmarzly/ffserver-daemon 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 pzmarzly/ffserver-daemon
[INFO] finished frobbing pzmarzly/ffserver-daemon
[INFO] frobbed toml for pzmarzly/ffserver-daemon written to work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon/Cargo.toml
[INFO] started frobbing pzmarzly/ffserver-daemon
[INFO] finished frobbing pzmarzly/ffserver-daemon
[INFO] frobbed toml for pzmarzly/ffserver-daemon written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/pzmarzly/ffserver-daemon/Cargo.toml
[INFO] crate pzmarzly/ffserver-daemon 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 pzmarzly/ffserver-daemon against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8ecde99df9f4b57207c99c57a327df154fc39b6f9470f60552f3ffaba4e74edf
[INFO] running `"docker" "start" "-a" "8ecde99df9f4b57207c99c57a327df154fc39b6f9470f60552f3ffaba4e74edf"`
[INFO] [stderr]    Compiling ffserver-daemon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 |             if let Ok(mut remote) = remote {
[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 1.31s
[INFO] running `"docker" "inspect" "8ecde99df9f4b57207c99c57a327df154fc39b6f9470f60552f3ffaba4e74edf"`
[INFO] running `"docker" "rm" "-f" "8ecde99df9f4b57207c99c57a327df154fc39b6f9470f60552f3ffaba4e74edf"`
[INFO] [stdout] 8ecde99df9f4b57207c99c57a327df154fc39b6f9470f60552f3ffaba4e74edf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d7dff1d3d9d671d393cd34332d66440e35172dded73284bb4dcf167ff62cff85
[INFO] running `"docker" "start" "-a" "d7dff1d3d9d671d393cd34332d66440e35172dded73284bb4dcf167ff62cff85"`
[INFO] [stderr]    Compiling ffserver-daemon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 |             if let Ok(mut remote) = remote {
[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 0.73s
[INFO] running `"docker" "inspect" "d7dff1d3d9d671d393cd34332d66440e35172dded73284bb4dcf167ff62cff85"`
[INFO] running `"docker" "rm" "-f" "d7dff1d3d9d671d393cd34332d66440e35172dded73284bb4dcf167ff62cff85"`
[INFO] [stdout] d7dff1d3d9d671d393cd34332d66440e35172dded73284bb4dcf167ff62cff85
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/pzmarzly/ffserver-daemon:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 41343490528d228f0d7f5728aec7ea49b0bf1c824147dfcec6494be79bacfbbd
[INFO] running `"docker" "start" "-a" "41343490528d228f0d7f5728aec7ea49b0bf1c824147dfcec6494be79bacfbbd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ffserver_daemon-386d28e1bdeae583
[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" "41343490528d228f0d7f5728aec7ea49b0bf1c824147dfcec6494be79bacfbbd"`
[INFO] running `"docker" "rm" "-f" "41343490528d228f0d7f5728aec7ea49b0bf1c824147dfcec6494be79bacfbbd"`
[INFO] [stdout] 41343490528d228f0d7f5728aec7ea49b0bf1c824147dfcec6494be79bacfbbd