[INFO] updating cached repository https://github.com/LFalch/key-layout
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b6330cf89682228073b882fbe1aa9affa7f8033c
[INFO] checking LFalch/key-layout against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FLFalch%2Fkey-layout" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LFalch/key-layout on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/LFalch/key-layout
[INFO] finished tweaking git repo https://github.com/LFalch/key-layout
[INFO] tweaked toml for git repo https://github.com/LFalch/key-layout written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/LFalch/key-layout already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c0544f89deced38eae099dc48b9e0ef090e77005188634a83c3167dc3e1bd58d
[INFO] running `"docker" "start" "-a" "c0544f89deced38eae099dc48b9e0ef090e77005188634a83c3167dc3e1bd58d"`
[INFO] [stderr]     Checking utf16-ext v0.1.0
[INFO] [stderr]     Checking serde-xml-rs v0.2.1
[INFO] [stderr]     Checking key-layout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/klc.rs:166:74
[INFO] [stderr]     |
[INFO] [stderr] 166 |                     ret.deadkeys.get_mut(k)?.insert(read_char(args[0])?, (read_char(args[1])?));
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/klc.rs:166:74
[INFO] [stderr]     |
[INFO] [stderr] 166 |                     ret.deadkeys.get_mut(k)?.insert(read_char(args[0])?, (read_char(args[1])?));
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]  --> src/convert.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |         layout,
[INFO] [stderr]   |         ^^^^^^ help: try ignoring the field: `layout: _`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `deadkeys`
[INFO] [stderr]  --> src/convert.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         deadkeys,
[INFO] [stderr]   |         ^^^^^^^^ help: try ignoring the field: `deadkeys: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keynames_dead`
[INFO] [stderr]  --> src/convert.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         keynames_dead,
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: try ignoring the field: `keynames_dead: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `layout`
[INFO] [stderr]  --> src/convert.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |         layout,
[INFO] [stderr]   |         ^^^^^^ help: try ignoring the field: `layout: _`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `deadkeys`
[INFO] [stderr]  --> src/convert.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |         deadkeys,
[INFO] [stderr]   |         ^^^^^^^^ help: try ignoring the field: `deadkeys: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `keynames_dead`
[INFO] [stderr]  --> src/convert.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         keynames_dead,
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: try ignoring the field: `keynames_dead: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/convert.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut key_maps: Vec<_> = (0..9).map(|i| KeyMap {
[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/convert.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut actions = vec![];
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/convert.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut terminators = vec![];
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/convert.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut key_maps: Vec<_> = (0..9).map(|i| KeyMap {
[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/convert.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut actions = vec![];
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/convert.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut terminators = vec![];
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `"docker" "inspect" "c0544f89deced38eae099dc48b9e0ef090e77005188634a83c3167dc3e1bd58d"`
[INFO] running `"docker" "rm" "-f" "c0544f89deced38eae099dc48b9e0ef090e77005188634a83c3167dc3e1bd58d"`
[INFO] [stdout] c0544f89deced38eae099dc48b9e0ef090e77005188634a83c3167dc3e1bd58d