[INFO] updating cached repository rharriso/troll
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rharriso/troll
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rharriso/troll" "work/ex/beta-1.38-1/sources/1.37.0/gh/rharriso/troll"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rharriso/troll'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rharriso/troll" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rharriso/troll"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rharriso/troll'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f04cb530cf3d33dfc4a8be95a74b98aad0321350
[INFO] sha for GitHub repo rharriso/troll: f04cb530cf3d33dfc4a8be95a74b98aad0321350
[INFO] validating manifest of rharriso/troll 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 rharriso/troll 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 rharriso/troll
[INFO] finished frobbing rharriso/troll
[INFO] frobbed toml for rharriso/troll written to work/ex/beta-1.38-1/sources/1.37.0/gh/rharriso/troll/Cargo.toml
[INFO] started frobbing rharriso/troll
[INFO] finished frobbing rharriso/troll
[INFO] frobbed toml for rharriso/troll written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rharriso/troll/Cargo.toml
[INFO] crate rharriso/troll 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 rharriso/troll 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-3/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/rharriso/troll:/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] f9c8e576c381ba8ae64c26f9fd4c47400ffba70b26d87576627d7c529fd0a54b
[INFO] running `"docker" "start" "-a" "f9c8e576c381ba8ae64c26f9fd4c47400ffba70b26d87576627d7c529fd0a54b"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling encode_unicode v0.3.5
[INFO] [stderr]    Compiling levenshtein v1.0.4
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling troll v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `branch`
[INFO] [stderr]    --> src/main.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let branch = match capture_group.get(3) {
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_branch`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.23s
[INFO] running `"docker" "inspect" "f9c8e576c381ba8ae64c26f9fd4c47400ffba70b26d87576627d7c529fd0a54b"`
[INFO] running `"docker" "rm" "-f" "f9c8e576c381ba8ae64c26f9fd4c47400ffba70b26d87576627d7c529fd0a54b"`
[INFO] [stdout] f9c8e576c381ba8ae64c26f9fd4c47400ffba70b26d87576627d7c529fd0a54b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/rharriso/troll:/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] b2dcf3160a13e18443b97ec003f3870994f2662a0521ac2ac7ac65a432ca44e8
[INFO] running `"docker" "start" "-a" "b2dcf3160a13e18443b97ec003f3870994f2662a0521ac2ac7ac65a432ca44e8"`
[INFO] [stderr]    Compiling troll v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `branch`
[INFO] [stderr]    --> src/main.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |     let branch = match capture_group.get(3) {
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_branch`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "b2dcf3160a13e18443b97ec003f3870994f2662a0521ac2ac7ac65a432ca44e8"`
[INFO] running `"docker" "rm" "-f" "b2dcf3160a13e18443b97ec003f3870994f2662a0521ac2ac7ac65a432ca44e8"`
[INFO] [stdout] b2dcf3160a13e18443b97ec003f3870994f2662a0521ac2ac7ac65a432ca44e8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/rharriso/troll:/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] 5960ba95314f811587f9de177a61dce37aebd423f9c176bcb1ce3d4641e0adb7
[INFO] running `"docker" "start" "-a" "5960ba95314f811587f9de177a61dce37aebd423f9c176bcb1ce3d4641e0adb7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/troll-a2e46f991d3dac1c
[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" "5960ba95314f811587f9de177a61dce37aebd423f9c176bcb1ce3d4641e0adb7"`
[INFO] running `"docker" "rm" "-f" "5960ba95314f811587f9de177a61dce37aebd423f9c176bcb1ce3d4641e0adb7"`
[INFO] [stdout] 5960ba95314f811587f9de177a61dce37aebd423f9c176bcb1ce3d4641e0adb7