[INFO] cloning repository https://github.com/dmoonfire/minimal-rust-lsp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmoonfire/minimal-rust-lsp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmoonfire%2Fminimal-rust-lsp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmoonfire%2Fminimal-rust-lsp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a971993f46204dbc895638efd819e3486aa8303
[INFO] checking dmoonfire/minimal-rust-lsp against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmoonfire%2Fminimal-rust-lsp" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmoonfire/minimal-rust-lsp on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmoonfire/minimal-rust-lsp
[INFO] finished tweaking git repo https://github.com/dmoonfire/minimal-rust-lsp
[INFO] tweaked toml for git repo https://github.com/dmoonfire/minimal-rust-lsp written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/dmoonfire/minimal-rust-lsp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b45deccc65c1cc7401218547d411a96ddcd583d960b00ca5e7395d40b12f4748
[INFO] running `Command { std: "docker" "start" "-a" "b45deccc65c1cc7401218547d411a96ddcd583d960b00ca5e7395d40b12f4748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b45deccc65c1cc7401218547d411a96ddcd583d960b00ca5e7395d40b12f4748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45deccc65c1cc7401218547d411a96ddcd583d960b00ca5e7395d40b12f4748", kill_on_drop: false }`
[INFO] [stdout] b45deccc65c1cc7401218547d411a96ddcd583d960b00ca5e7395d40b12f4748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e8d87b79d2f87b568c47507d50d953ea9cb9fbf58c257fb2dba76b8bfe4a4ed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1e8d87b79d2f87b568c47507d50d953ea9cb9fbf58c257fb2dba76b8bfe4a4ed", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]    Compiling num-traits v0.2.7
[INFO] [stderr]    Compiling num-integer v0.1.40
[INFO] [stderr]    Compiling backtrace v0.3.20
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking simple_logger v1.2.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde v1.0.91
[INFO] [stderr]     Checking url_serde v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking lsp-types v0.57.1
[INFO] [stderr]     Checking gen_lsp_server v0.2.0
[INFO] [stderr]     Checking lsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `read_msg_text`
[INFO] [stdout]  --> src/msg.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_msg_text(
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_msg_text`
[INFO] [stdout]  --> src/msg.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_msg_text(
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.82s
[INFO] running `Command { std: "docker" "inspect" "1e8d87b79d2f87b568c47507d50d953ea9cb9fbf58c257fb2dba76b8bfe4a4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8d87b79d2f87b568c47507d50d953ea9cb9fbf58c257fb2dba76b8bfe4a4ed", kill_on_drop: false }`
[INFO] [stdout] 1e8d87b79d2f87b568c47507d50d953ea9cb9fbf58c257fb2dba76b8bfe4a4ed