[INFO] updating cached repository eliheuer/gif-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/eliheuer/gif-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/eliheuer/gif-generator" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/eliheuer/gif-generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/eliheuer/gif-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/eliheuer/gif-generator" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/eliheuer/gif-generator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/eliheuer/gif-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8eb0239893a0242d403cbb4d61e5373d70ec5dc
[INFO] sha for GitHub repo eliheuer/gif-generator: c8eb0239893a0242d403cbb4d61e5373d70ec5dc
[INFO] validating manifest of eliheuer/gif-generator on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of eliheuer/gif-generator on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing eliheuer/gif-generator
[INFO] finished frobbing eliheuer/gif-generator
[INFO] frobbed toml for eliheuer/gif-generator written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/eliheuer/gif-generator/Cargo.toml
[INFO] started frobbing eliheuer/gif-generator
[INFO] finished frobbing eliheuer/gif-generator
[INFO] frobbed toml for eliheuer/gif-generator written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/eliheuer/gif-generator/Cargo.toml
[INFO] crate eliheuer/gif-generator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking eliheuer/gif-generator against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-6/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/eliheuer/gif-generator:/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=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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 41b3f007078f2d9d8313acedcb3a2ad26cce07e2fef4ac8cdf61a92dc9082b6f
[INFO] running `"docker" "start" "-a" "41b3f007078f2d9d8313acedcb3a2ad26cce07e2fef4ac8cdf61a92dc9082b6f"`
[INFO] [stderr]     Checking gif-generator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rand_col`
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut rand_col: [u8; 256];
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_rand_col`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ary_a`
[INFO] [stderr]   --> src/main.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let mut ary_a: [u8; 256];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_ary_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ary_b`
[INFO] [stderr]   --> src/main.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut ary_b: [u8; 256];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_ary_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rand_col`
[INFO] [stderr]   --> src/main.rs:72:13
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut rand_col: [u8; 256];
[INFO] [stderr]    |             ^^^^^^^^ help: consider prefixing with an underscore: `_rand_col`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ary_a`
[INFO] [stderr]   --> src/main.rs:83:13
[INFO] [stderr]    |
[INFO] [stderr] 83 |     let mut ary_a: [u8; 256];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_ary_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ary_b`
[INFO] [stderr]   --> src/main.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut ary_b: [u8; 256];
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_ary_b`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "41b3f007078f2d9d8313acedcb3a2ad26cce07e2fef4ac8cdf61a92dc9082b6f"`
[INFO] running `"docker" "rm" "-f" "41b3f007078f2d9d8313acedcb3a2ad26cce07e2fef4ac8cdf61a92dc9082b6f"`
[INFO] [stdout] 41b3f007078f2d9d8313acedcb3a2ad26cce07e2fef4ac8cdf61a92dc9082b6f