[INFO] updating cached repository https://github.com/autozimu/LanguageClient-neovim
[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] ee6cdb0940d9c2c95f31488f7d463b2d12abcbc4
[INFO] checking autozimu/LanguageClient-neovim against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fautozimu%2FLanguageClient-neovim" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/autozimu/LanguageClient-neovim on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/autozimu/LanguageClient-neovim
[INFO] finished tweaking git repo https://github.com/autozimu/LanguageClient-neovim
[INFO] tweaked toml for git repo https://github.com/autozimu/LanguageClient-neovim written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/autozimu/LanguageClient-neovim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 34fdea20266a84b36f21e9218888cb6f4ebf4a037387b738e5898e503c6718dd
[INFO] running `"docker" "start" "-a" "34fdea20266a84b36f21e9218888cb6f4ebf4a037387b738e5898e503c6718dd"`
[INFO] [stderr]    Compiling languageclient v0.1.154 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking jsonrpc-core v12.0.0
[INFO] [stderr]     Checking lsp-types v0.60.0
[INFO] [stderr]     Checking log4rs v0.8.3
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking notify v4.0.12
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/rpchandler.rs:10:62
[INFO] [stderr]    |
[INFO] [stderr] 10 |                 let result = self.handle_method_call(lang_id.as_deref(), &method_call);
[INFO] [stderr]    |                                                              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/rpchandler.rs:25:63
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let result = self.handle_notification(lang_id.as_deref(), &notification);
[INFO] [stderr]    |                                                               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/rpchandler.rs:10:62
[INFO] [stderr]    |
[INFO] [stderr] 10 |                 let result = self.handle_method_call(lang_id.as_deref(), &method_call);
[INFO] [stderr]    |                                                              ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/rpchandler.rs:25:63
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let result = self.handle_notification(lang_id.as_deref(), &notification);
[INFO] [stderr]    |                                                               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/vim.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let goto = goto_cmd.as_deref().unwrap_or("edit");
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/vim.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let goto = goto_cmd.as_deref().unwrap_or("edit");
[INFO] [stderr]     |                             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `types::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]     = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.48s
[INFO] running `"docker" "inspect" "34fdea20266a84b36f21e9218888cb6f4ebf4a037387b738e5898e503c6718dd"`
[INFO] running `"docker" "rm" "-f" "34fdea20266a84b36f21e9218888cb6f4ebf4a037387b738e5898e503c6718dd"`
[INFO] [stdout] 34fdea20266a84b36f21e9218888cb6f4ebf4a037387b738e5898e503c6718dd