Dec 18 16:15:48.628 INFO checking gazetta-render-ext-0.2.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 16:15:48.629 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/gazetta-render-ext/0.2.1:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 16:15:49.191 INFO [stdout] 769d516ce1f2070562a49fa93512966ef7819d6511f2ec7cd09ed6792905833c
Dec 18 16:15:49.194 INFO running `"docker" "start" "-a" "769d516ce1f2070562a49fa93512966ef7819d6511f2ec7cd09ed6792905833c"`
Dec 18 16:15:50.452 INFO [stderr]     Checking str_stack v0.1.0
Dec 18 16:15:50.452 INFO [stderr]     Checking horrorshow v0.6.4
Dec 18 16:15:50.492 INFO [stderr]     Checking pulldown-cmark v0.1.2
Dec 18 16:15:51.692 INFO [stderr]     Checking gazetta-core v0.2.1
Dec 18 16:15:52.772 INFO [stderr]     Checking gazetta-render-ext v0.2.1 (/opt/crater/workdir)
Dec 18 16:15:53.623 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:15:53.623 INFO [stderr]    --> src/markdown.rs:104:30
Dec 18 16:15:53.623 INFO [stderr]     |
Dec 18 16:15:53.623 INFO [stderr] 104 |     fn render_once(mut self, mut tmpl: &mut TemplateBuffer) {
Dec 18 16:15:53.623 INFO [stderr]     |                              ----^^^^
Dec 18 16:15:53.623 INFO [stderr]     |                              |
Dec 18 16:15:53.624 INFO [stderr]     |                              help: remove this `mut`
Dec 18 16:15:53.624 INFO [stderr]     |
Dec 18 16:15:53.624 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:15:53.624 INFO [stderr] 
Dec 18 16:15:53.688 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:15:53.689 INFO [stderr]    --> src/markdown.rs:110:30
Dec 18 16:15:53.689 INFO [stderr]     |
Dec 18 16:15:53.689 INFO [stderr] 110 |     fn render_mut(&mut self, mut tmpl: &mut TemplateBuffer) {
Dec 18 16:15:53.689 INFO [stderr]     |                              ----^^^^
Dec 18 16:15:53.689 INFO [stderr]     |                              |
Dec 18 16:15:53.689 INFO [stderr]     |                              help: remove this `mut`
Dec 18 16:15:53.696 INFO [stderr] 
Dec 18 16:15:54.260 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:15:54.260 INFO [stderr]    --> src/markdown.rs:104:30
Dec 18 16:15:54.260 INFO [stderr]     |
Dec 18 16:15:54.260 INFO [stderr] 104 |     fn render_once(mut self, mut tmpl: &mut TemplateBuffer) {
Dec 18 16:15:54.260 INFO [stderr]     |                              ----^^^^
Dec 18 16:15:54.260 INFO [stderr]     |                              |
Dec 18 16:15:54.260 INFO [stderr]     |                              help: remove this `mut`
Dec 18 16:15:54.260 INFO [stderr]     |
Dec 18 16:15:54.260 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 16:15:54.260 INFO [stderr] 
Dec 18 16:15:54.312 INFO [stderr] warning: variable does not need to be mutable
Dec 18 16:15:54.312 INFO [stderr]    --> src/markdown.rs:110:30
Dec 18 16:15:54.312 INFO [stderr]     |
Dec 18 16:15:54.312 INFO [stderr] 110 |     fn render_mut(&mut self, mut tmpl: &mut TemplateBuffer) {
Dec 18 16:15:54.312 INFO [stderr]     |                              ----^^^^
Dec 18 16:15:54.312 INFO [stderr]     |                              |
Dec 18 16:15:54.312 INFO [stderr]     |                              help: remove this `mut`
Dec 18 16:15:54.312 INFO [stderr] 
Dec 18 16:15:54.385 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.02s
Dec 18 16:15:55.312 INFO running `"docker" "inspect" "769d516ce1f2070562a49fa93512966ef7819d6511f2ec7cd09ed6792905833c"`
Dec 18 16:15:55.578 INFO running `"docker" "rm" "-f" "769d516ce1f2070562a49fa93512966ef7819d6511f2ec7cd09ed6792905833c"`
Dec 18 16:15:55.915 INFO [stdout] 769d516ce1f2070562a49fa93512966ef7819d6511f2ec7cd09ed6792905833c