[INFO] crate csv2struct 0.1.0 is already in cache
[INFO] extracting crate csv2struct 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/csv2struct/0.1.0
[INFO] extracting crate csv2struct 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/csv2struct/0.1.0
[INFO] validating manifest of csv2struct-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of csv2struct-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing csv2struct-0.1.0
[INFO] finished frobbing csv2struct-0.1.0
[INFO] frobbed toml for csv2struct-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/csv2struct/0.1.0/Cargo.toml
[INFO] started frobbing csv2struct-0.1.0
[INFO] finished frobbing csv2struct-0.1.0
[INFO] frobbed toml for csv2struct-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/csv2struct/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing csv2struct-0.1.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/csv2struct/0.1.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 91196d6c1b532bc287ece417becac646f2cdffc00cf0bbfe974defd3a25a80ac
[INFO] running `"docker" "start" "-a" "91196d6c1b532bc287ece417becac646f2cdffc00cf0bbfe974defd3a25a80ac"`
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling regex v1.2.0
[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 9.49s
[INFO] running `"docker" "inspect" "91196d6c1b532bc287ece417becac646f2cdffc00cf0bbfe974defd3a25a80ac"`
[INFO] running `"docker" "rm" "-f" "91196d6c1b532bc287ece417becac646f2cdffc00cf0bbfe974defd3a25a80ac"`
[INFO] [stdout] 91196d6c1b532bc287ece417becac646f2cdffc00cf0bbfe974defd3a25a80ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/csv2struct/0.1.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a2f356fd82a2b2182a33bc6b6762ebe48209ef5d293535fc7b85b09a2a5ed60
[INFO] running `"docker" "start" "-a" "5a2f356fd82a2b2182a33bc6b6762ebe48209ef5d293535fc7b85b09a2a5ed60"`
[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 1.07s
[INFO] running `"docker" "inspect" "5a2f356fd82a2b2182a33bc6b6762ebe48209ef5d293535fc7b85b09a2a5ed60"`
[INFO] running `"docker" "rm" "-f" "5a2f356fd82a2b2182a33bc6b6762ebe48209ef5d293535fc7b85b09a2a5ed60"`
[INFO] [stdout] 5a2f356fd82a2b2182a33bc6b6762ebe48209ef5d293535fc7b85b09a2a5ed60
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/csv2struct/0.1.0:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5278db51183b40749cbab381f937d1c5f08f3af2c5501282ac5db1e9fa2d466d
[INFO] running `"docker" "start" "-a" "5278db51183b40749cbab381f937d1c5f08f3af2c5501282ac5db1e9fa2d466d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/csv2struct-1079d31c0f2318fe
[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" "5278db51183b40749cbab381f937d1c5f08f3af2c5501282ac5db1e9fa2d466d"`
[INFO] running `"docker" "rm" "-f" "5278db51183b40749cbab381f937d1c5f08f3af2c5501282ac5db1e9fa2d466d"`
[INFO] [stdout] 5278db51183b40749cbab381f937d1c5f08f3af2c5501282ac5db1e9fa2d466d