[INFO] updating cached repository testingcan/xlsx-csv
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/testingcan/xlsx-csv
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/testingcan/xlsx-csv" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/testingcan/xlsx-csv"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/testingcan/xlsx-csv'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/testingcan/xlsx-csv" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/testingcan/xlsx-csv"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/testingcan/xlsx-csv'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9219b197e9ecf2f06892a1bfd00e017b707548dc
[INFO] sha for GitHub repo testingcan/xlsx-csv: 9219b197e9ecf2f06892a1bfd00e017b707548dc
[INFO] validating manifest of testingcan/xlsx-csv on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of testingcan/xlsx-csv on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing testingcan/xlsx-csv
[INFO] finished frobbing testingcan/xlsx-csv
[INFO] frobbed toml for testingcan/xlsx-csv written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/testingcan/xlsx-csv/Cargo.toml
[INFO] started frobbing testingcan/xlsx-csv
[INFO] finished frobbing testingcan/xlsx-csv
[INFO] frobbed toml for testingcan/xlsx-csv written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/testingcan/xlsx-csv/Cargo.toml
[INFO] crate testingcan/xlsx-csv already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking testingcan/xlsx-csv against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/testingcan/xlsx-csv:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 93b3c24845a4903b924b399e58f7711d60451c8e63740e6f6c0b165f128a2ec0
[INFO] running `"docker" "start" "-a" "93b3c24845a4903b924b399e58f7711d60451c8e63740e6f6c0b165f128a2ec0"`
[INFO] [stderr]     Checking rust-ini v0.12.2
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking miniz_oxide v0.1.3
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking encoding_rs v0.8.6
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]    Compiling syn v0.14.5
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking flate2 v1.0.1
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking serde-hjson v0.8.1
[INFO] [stderr]     Checking config v0.9.0
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking quick-xml v0.12.1
[INFO] [stderr]     Checking calamine v0.14.3
[INFO] [stderr]     Checking xlsx-csv v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/file.rs:90:17
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut f = File::create("foo.xlsx");
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/file.rs:90:13
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mut f = File::create("foo.xlsx");
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/file.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |         remove_file("foo.xlsx");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.88s
[INFO] running `"docker" "inspect" "93b3c24845a4903b924b399e58f7711d60451c8e63740e6f6c0b165f128a2ec0"`
[INFO] running `"docker" "rm" "-f" "93b3c24845a4903b924b399e58f7711d60451c8e63740e6f6c0b165f128a2ec0"`
[INFO] [stdout] 93b3c24845a4903b924b399e58f7711d60451c8e63740e6f6c0b165f128a2ec0