[INFO] updating cached repository AliSchlereth/bad_connection_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/AliSchlereth/bad_connection_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/AliSchlereth/bad_connection_rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AliSchlereth/bad_connection_rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AliSchlereth/bad_connection_rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AliSchlereth/bad_connection_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8920da136621e84fa52169ff120b97cf529e5dec
[INFO] sha for GitHub repo AliSchlereth/bad_connection_rust: 8920da136621e84fa52169ff120b97cf529e5dec
[INFO] validating manifest of AliSchlereth/bad_connection_rust 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 AliSchlereth/bad_connection_rust 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 AliSchlereth/bad_connection_rust
[INFO] finished frobbing AliSchlereth/bad_connection_rust
[INFO] frobbed toml for AliSchlereth/bad_connection_rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust/Cargo.toml
[INFO] started frobbing AliSchlereth/bad_connection_rust
[INFO] finished frobbing AliSchlereth/bad_connection_rust
[INFO] frobbed toml for AliSchlereth/bad_connection_rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/AliSchlereth/bad_connection_rust/Cargo.toml
[INFO] crate AliSchlereth/bad_connection_rust 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 AliSchlereth/bad_connection_rust 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust:/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] f659464efdebf47933995c2ee16e4772bd858daac0680fe446b2181ce7db0545
[INFO] running `"docker" "start" "-a" "f659464efdebf47933995c2ee16e4772bd858daac0680fe446b2181ce7db0545"`
[INFO] [stderr]    Compiling bad_connection v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut listening = true;
[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 0.44s
[INFO] running `"docker" "inspect" "f659464efdebf47933995c2ee16e4772bd858daac0680fe446b2181ce7db0545"`
[INFO] running `"docker" "rm" "-f" "f659464efdebf47933995c2ee16e4772bd858daac0680fe446b2181ce7db0545"`
[INFO] [stdout] f659464efdebf47933995c2ee16e4772bd858daac0680fe446b2181ce7db0545
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust:/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] 9779e13259636986ed59c3d78d934e807a8628e3d2510c342f3cdeb5325be4d2
[INFO] running `"docker" "start" "-a" "9779e13259636986ed59c3d78d934e807a8628e3d2510c342f3cdeb5325be4d2"`
[INFO] [stderr]    Compiling bad_connection v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut listening = true;
[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 0.40s
[INFO] running `"docker" "inspect" "9779e13259636986ed59c3d78d934e807a8628e3d2510c342f3cdeb5325be4d2"`
[INFO] running `"docker" "rm" "-f" "9779e13259636986ed59c3d78d934e807a8628e3d2510c342f3cdeb5325be4d2"`
[INFO] [stdout] 9779e13259636986ed59c3d78d934e807a8628e3d2510c342f3cdeb5325be4d2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/AliSchlereth/bad_connection_rust:/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] 0ba270b9dde470d3ae24027652b9d551ddb0463b5da56591fbd6aeaed333a1be
[INFO] running `"docker" "start" "-a" "0ba270b9dde470d3ae24027652b9d551ddb0463b5da56591fbd6aeaed333a1be"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bad_connection-69dd6ef927392c1b
[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" "0ba270b9dde470d3ae24027652b9d551ddb0463b5da56591fbd6aeaed333a1be"`
[INFO] running `"docker" "rm" "-f" "0ba270b9dde470d3ae24027652b9d551ddb0463b5da56591fbd6aeaed333a1be"`
[INFO] [stdout] 0ba270b9dde470d3ae24027652b9d551ddb0463b5da56591fbd6aeaed333a1be