[INFO] updating cached repository ul/kak-lsp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ul/kak-lsp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ul/kak-lsp" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ul/kak-lsp"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ul/kak-lsp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ul/kak-lsp" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ul/kak-lsp"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ul/kak-lsp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a64a8b2d20854d1b91058c770dc83441df1fd1d7
[INFO] sha for GitHub repo ul/kak-lsp: a64a8b2d20854d1b91058c770dc83441df1fd1d7
[INFO] validating manifest of ul/kak-lsp on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ul/kak-lsp on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ul/kak-lsp
[INFO] finished frobbing ul/kak-lsp
[INFO] frobbed toml for ul/kak-lsp written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ul/kak-lsp/Cargo.toml
[INFO] started frobbing ul/kak-lsp
[INFO] finished frobbing ul/kak-lsp
[INFO] frobbed toml for ul/kak-lsp written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/ul/kak-lsp/Cargo.toml
[INFO] crate ul/kak-lsp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ul/kak-lsp against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-5/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/ul/kak-lsp:/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2ce79f2763a5c45769ec2d7d6d7fb77db60f4273fab2f63603e439e065e028b7
[INFO] running `"docker" "start" "-a" "2ce79f2763a5c45769ec2d7d6d7fb77db60f4273fab2f63603e439e065e028b7"`
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking daemonize v0.3.0
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking slog-term v2.4.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]     Checking slog-scope v4.1.1
[INFO] [stderr]     Checking slog-stdlog v3.0.2
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking sloggers v0.3.2
[INFO] [stderr]     Checking lsp-types v0.56.0
[INFO] [stderr]     Checking jsonrpc-core v8.0.1
[INFO] [stderr]     Checking kak-lsp v6.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `serde_json` is imported redundantly
[INFO] [stderr]    --> src/types.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |         use serde_json;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate serde_json;
[INFO] [stderr]     | ------------------------ the item `serde_json` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `serde_json` is imported redundantly
[INFO] [stderr]    --> src/types.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |         use serde_json;
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:13:1
[INFO] [stderr]     |
[INFO] [stderr] 13  | extern crate serde_json;
[INFO] [stderr]     | ------------------------ the item `serde_json` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/workspace.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let mut maybe_new_target = target
[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/workspace.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |             let mut maybe_new_target = target
[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]     Finished dev [unoptimized + debuginfo] target(s) in 53.02s
[INFO] running `"docker" "inspect" "2ce79f2763a5c45769ec2d7d6d7fb77db60f4273fab2f63603e439e065e028b7"`
[INFO] running `"docker" "rm" "-f" "2ce79f2763a5c45769ec2d7d6d7fb77db60f4273fab2f63603e439e065e028b7"`
[INFO] [stdout] 2ce79f2763a5c45769ec2d7d6d7fb77db60f4273fab2f63603e439e065e028b7