[INFO] updating cached repository https://github.com/ul/kak-lsp
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/ul/kak-lsp
[INFO] [stderr]    befd2f3..996e483  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 996e483bb86c6116988e533790235cb4e4105b51
[INFO] checking ul/kak-lsp against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ful%2Fkak-lsp" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ul/kak-lsp on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ul/kak-lsp
[INFO] finished tweaking git repo https://github.com/ul/kak-lsp
[INFO] tweaked toml for git repo https://github.com/ul/kak-lsp written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ul/kak-lsp already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7fcc331a13de1257d10100df2d413782ff6291bf5b78ad2252fe3b25f1e53efc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7fcc331a13de1257d10100df2d413782ff6291bf5b78ad2252fe3b25f1e53efc"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking whoami v0.5.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ropey v1.1.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking slog-scope v4.3.0
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-kvfilter v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking slog-term v2.4.2
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]     Checking trackable v0.2.23
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking sloggers v0.3.5
[INFO] [stderr]     Checking lsp-types v0.67.0
[INFO] [stderr]     Checking jsonrpc-core v13.2.0
[INFO] [stderr]     Checking kak-lsp v7.0.0-snapshot (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 15s
[INFO] running `"docker" "inspect" "7fcc331a13de1257d10100df2d413782ff6291bf5b78ad2252fe3b25f1e53efc"`
[INFO] running `"docker" "rm" "-f" "7fcc331a13de1257d10100df2d413782ff6291bf5b78ad2252fe3b25f1e53efc"`
[INFO] [stdout] 7fcc331a13de1257d10100df2d413782ff6291bf5b78ad2252fe3b25f1e53efc