[INFO] updating cached repository KyussCaesar/csv2struct
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/KyussCaesar/csv2struct
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/KyussCaesar/csv2struct" "work/ex/beta-1.38-1/sources/1.37.0/gh/KyussCaesar/csv2struct"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/KyussCaesar/csv2struct'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/KyussCaesar/csv2struct" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KyussCaesar/csv2struct"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KyussCaesar/csv2struct'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36126a0491eb3fe1b12842c9a7199496586e1208
[INFO] sha for GitHub repo KyussCaesar/csv2struct: 36126a0491eb3fe1b12842c9a7199496586e1208
[INFO] validating manifest of KyussCaesar/csv2struct 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 KyussCaesar/csv2struct 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 KyussCaesar/csv2struct
[INFO] finished frobbing KyussCaesar/csv2struct
[INFO] frobbed toml for KyussCaesar/csv2struct written to work/ex/beta-1.38-1/sources/1.37.0/gh/KyussCaesar/csv2struct/Cargo.toml
[INFO] started frobbing KyussCaesar/csv2struct
[INFO] finished frobbing KyussCaesar/csv2struct
[INFO] frobbed toml for KyussCaesar/csv2struct written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/KyussCaesar/csv2struct/Cargo.toml
[INFO] crate KyussCaesar/csv2struct 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 KyussCaesar/csv2struct 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/KyussCaesar/csv2struct:/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] 3b4e1e7703c21493256fbc8a60198c9f247d992250a093687a39419d3b623451
[INFO] running `"docker" "start" "-a" "3b4e1e7703c21493256fbc8a60198c9f247d992250a093687a39419d3b623451"`
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling csv2struct v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `type_name` is never read
[INFO] [stderr]    --> src/main.rs:230:21
[INFO] [stderr]     |
[INFO] [stderr] 230 |             let mut type_name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.49s
[INFO] running `"docker" "inspect" "3b4e1e7703c21493256fbc8a60198c9f247d992250a093687a39419d3b623451"`
[INFO] running `"docker" "rm" "-f" "3b4e1e7703c21493256fbc8a60198c9f247d992250a093687a39419d3b623451"`
[INFO] [stdout] 3b4e1e7703c21493256fbc8a60198c9f247d992250a093687a39419d3b623451
[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/KyussCaesar/csv2struct:/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] 2aa15768c45482534a6f9fe1878a98338b519c4a8bf16e2b207e55acf83e2969
[INFO] running `"docker" "start" "-a" "2aa15768c45482534a6f9fe1878a98338b519c4a8bf16e2b207e55acf83e2969"`
[INFO] [stderr]    Compiling csv2struct v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `type_name` is never read
[INFO] [stderr]    --> src/main.rs:230:21
[INFO] [stderr]     |
[INFO] [stderr] 230 |             let mut type_name = String::new();
[INFO] [stderr]     |                     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "2aa15768c45482534a6f9fe1878a98338b519c4a8bf16e2b207e55acf83e2969"`
[INFO] running `"docker" "rm" "-f" "2aa15768c45482534a6f9fe1878a98338b519c4a8bf16e2b207e55acf83e2969"`
[INFO] [stdout] 2aa15768c45482534a6f9fe1878a98338b519c4a8bf16e2b207e55acf83e2969
[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/KyussCaesar/csv2struct:/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] 51449c545e5a39a167a0c540ae7f7d261d05d0245a6814f3465f7d1aef0105e7
[INFO] running `"docker" "start" "-a" "51449c545e5a39a167a0c540ae7f7d261d05d0245a6814f3465f7d1aef0105e7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csv2struct-029f94ba24ed574c
[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" "51449c545e5a39a167a0c540ae7f7d261d05d0245a6814f3465f7d1aef0105e7"`
[INFO] running `"docker" "rm" "-f" "51449c545e5a39a167a0c540ae7f7d261d05d0245a6814f3465f7d1aef0105e7"`
[INFO] [stdout] 51449c545e5a39a167a0c540ae7f7d261d05d0245a6814f3465f7d1aef0105e7