[INFO] fetching crate usvg 0.6.1...
[INFO] extracting crate usvg 0.6.1 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/usvg/0.6.1
[INFO] extracting crate usvg 0.6.1 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/usvg/0.6.1
[INFO] validating manifest of usvg-0.6.1 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of usvg-0.6.1 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing usvg-0.6.1
[INFO] finished frobbing usvg-0.6.1
[INFO] frobbed toml for usvg-0.6.1 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/usvg/0.6.1/Cargo.toml
[INFO] started frobbing usvg-0.6.1
[INFO] finished frobbing usvg-0.6.1
[INFO] frobbed toml for usvg-0.6.1 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/usvg/0.6.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] building usvg-0.6.1 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/usvg/0.6.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 74cbdad5fe5409aa2447b49261d7bddb1d2fffeb5b8f24252458233ba6b48f8e
[INFO] running `"docker" "start" "-a" "74cbdad5fe5409aa2447b49261d7bddb1d2fffeb5b8f24252458233ba6b48f8e"`
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling xmlparser v0.9.0
[INFO] [stderr]    Compiling simplecss v0.1.0
[INFO] [stderr]    Compiling rctree v0.2.2
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling svgtypes v0.4.2
[INFO] [stderr]    Compiling roxmltree v0.6.0
[INFO] [stderr]    Compiling svgdom v0.16.1
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling euclid v0.19.8
[INFO] [stderr]    Compiling lyon_geom v0.12.6
[INFO] [stderr]    Compiling usvg v0.6.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/convert/filter.rs:381:21
[INFO] [stderr]     |
[INFO] [stderr] 381 |                 let mut name = format!("result{}", results.idx);
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/tree/export.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                     let mut g_elem = new_doc.create_element(EId::G);
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.23s
[INFO] running `"docker" "inspect" "74cbdad5fe5409aa2447b49261d7bddb1d2fffeb5b8f24252458233ba6b48f8e"`
[INFO] running `"docker" "rm" "-f" "74cbdad5fe5409aa2447b49261d7bddb1d2fffeb5b8f24252458233ba6b48f8e"`
[INFO] [stdout] 74cbdad5fe5409aa2447b49261d7bddb1d2fffeb5b8f24252458233ba6b48f8e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/usvg/0.6.1:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 208fa211d7c8fc4c6b01b3013d1d40b51945cfa5bdb4e2be4b253c71743ab661
[INFO] running `"docker" "start" "-a" "208fa211d7c8fc4c6b01b3013d1d40b51945cfa5bdb4e2be4b253c71743ab661"`
[INFO] [stderr]    Compiling usvg v0.6.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/convert/filter.rs:381:21
[INFO] [stderr]     |
[INFO] [stderr] 381 |                 let mut name = format!("result{}", results.idx);
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/tree/export.rs:394:25
[INFO] [stderr]     |
[INFO] [stderr] 394 |                     let mut g_elem = new_doc.create_element(EId::G);
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `"docker" "inspect" "208fa211d7c8fc4c6b01b3013d1d40b51945cfa5bdb4e2be4b253c71743ab661"`
[INFO] running `"docker" "rm" "-f" "208fa211d7c8fc4c6b01b3013d1d40b51945cfa5bdb4e2be4b253c71743ab661"`
[INFO] [stdout] 208fa211d7c8fc4c6b01b3013d1d40b51945cfa5bdb4e2be4b253c71743ab661