[INFO] updating cached repository RoguePotato/exoparse
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/RoguePotato/exoparse
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/RoguePotato/exoparse" "work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/RoguePotato/exoparse" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RoguePotato/exoparse"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RoguePotato/exoparse'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e4f87cf046efa4c45124efef7dcb29669a1d9e9f
[INFO] sha for GitHub repo RoguePotato/exoparse: e4f87cf046efa4c45124efef7dcb29669a1d9e9f
[INFO] validating manifest of RoguePotato/exoparse 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 RoguePotato/exoparse 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 RoguePotato/exoparse
[INFO] finished frobbing RoguePotato/exoparse
[INFO] frobbed toml for RoguePotato/exoparse written to work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse/Cargo.toml
[INFO] started frobbing RoguePotato/exoparse
[INFO] finished frobbing RoguePotato/exoparse
[INFO] frobbed toml for RoguePotato/exoparse written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/RoguePotato/exoparse/Cargo.toml
[INFO] crate RoguePotato/exoparse 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 RoguePotato/exoparse 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse:/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] 89bd490588162ff678282d1238612aec845c6f6eb5bda011a859b09473ad5858
[INFO] running `"docker" "start" "-a" "89bd490588162ff678282d1238612aec845c6f6eb5bda011a859b09473ad5858"`
[INFO] [stderr]    Compiling exoparse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let mut split: Vec<&str> = line.split(",").collect();
[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" "89bd490588162ff678282d1238612aec845c6f6eb5bda011a859b09473ad5858"`
[INFO] running `"docker" "rm" "-f" "89bd490588162ff678282d1238612aec845c6f6eb5bda011a859b09473ad5858"`
[INFO] [stdout] 89bd490588162ff678282d1238612aec845c6f6eb5bda011a859b09473ad5858
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse:/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] 8bcf152bf98e36a0022d50c5be82eca257ac45b875968de8c5e5dc9b131077cc
[INFO] running `"docker" "start" "-a" "8bcf152bf98e36a0022d50c5be82eca257ac45b875968de8c5e5dc9b131077cc"`
[INFO] [stderr]    Compiling exoparse v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |             let mut split: Vec<&str> = line.split(",").collect();
[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 0.51s
[INFO] running `"docker" "inspect" "8bcf152bf98e36a0022d50c5be82eca257ac45b875968de8c5e5dc9b131077cc"`
[INFO] running `"docker" "rm" "-f" "8bcf152bf98e36a0022d50c5be82eca257ac45b875968de8c5e5dc9b131077cc"`
[INFO] [stdout] 8bcf152bf98e36a0022d50c5be82eca257ac45b875968de8c5e5dc9b131077cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/RoguePotato/exoparse:/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] d32b0717fff90fb145e472a35a98a01c2b3d6c6e14909d9dd98abf8ec8e8ef97
[INFO] running `"docker" "start" "-a" "d32b0717fff90fb145e472a35a98a01c2b3d6c6e14909d9dd98abf8ec8e8ef97"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exoparse-230e9f070c8b7c2b
[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] [stderr]      Running /opt/crater/target/debug/deps/exoparse-17f172cc234de813
[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] [stderr]    Doc-tests exoparse
[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" "d32b0717fff90fb145e472a35a98a01c2b3d6c6e14909d9dd98abf8ec8e8ef97"`
[INFO] running `"docker" "rm" "-f" "d32b0717fff90fb145e472a35a98a01c2b3d6c6e14909d9dd98abf8ec8e8ef97"`
[INFO] [stdout] d32b0717fff90fb145e472a35a98a01c2b3d6c6e14909d9dd98abf8ec8e8ef97