[INFO] cloning repository https://github.com/mcclure/rovr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcclure/rovr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcclure%2Frovr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcclure%2Frovr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15e3c687c7872d7cbcf385ef3847bdc7d5366e7f
[INFO] checking mcclure/rovr against master#c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c for pr-123737
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcclure%2Frovr" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcclure/rovr on toolchain c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcclure/rovr
[INFO] finished tweaking git repo https://github.com/mcclure/rovr
[INFO] tweaked toml for git repo https://github.com/mcclure/rovr written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mcclure/rovr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cmake v0.1.46
[INFO] [stderr]   Downloaded cc v1.0.66
[INFO] [stderr]   Downloaded mlua v0.5.1
[INFO] [stderr]   Downloaded bstr v0.2.15
[INFO] [stderr]   Downloaded lua-src v542.0.0
[INFO] [stderr]   Downloaded libc v0.2.91
[INFO] [stderr]   Downloaded luajit-src v210.1.2+resty29a66f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5030c574538ce7fe54550aaecb9c1045ddffb742a22fc02c47dfffff23a060e2
[INFO] running `Command { std: "docker" "start" "-a" "5030c574538ce7fe54550aaecb9c1045ddffb742a22fc02c47dfffff23a060e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5030c574538ce7fe54550aaecb9c1045ddffb742a22fc02c47dfffff23a060e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5030c574538ce7fe54550aaecb9c1045ddffb742a22fc02c47dfffff23a060e2", kill_on_drop: false }`
[INFO] [stdout] 5030c574538ce7fe54550aaecb9c1045ddffb742a22fc02c47dfffff23a060e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+c2239bca5b89a8d3573cc0fc0f2fa65c50edb79c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4072b06d064ebcc32cec3ea22a97437fdee293f97fb1b96e6dcd211ea6d75d57
[INFO] running `Command { std: "docker" "start" "-a" "4072b06d064ebcc32cec3ea22a97437fdee293f97fb1b96e6dcd211ea6d75d57", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lua-src v542.0.0
[INFO] [stderr]    Compiling luajit-src v210.1.2+resty29a66f7
[INFO] [stderr]    Compiling cmake v0.1.46
[INFO] [stderr]     Checking nom v6.1.2
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling mlua v0.5.1
[INFO] [stderr]    Compiling rovr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking calloop v0.6.5
[INFO] [stderr]     Checking wayland-commons v0.28.5
[INFO] [stderr]     Checking wayland-client v0.28.5
[INFO] [stderr]     Checking wayland-cursor v0.28.5
[INFO] [stderr]     Checking wayland-protocols v0.28.5
[INFO] [stderr]     Checking smithay-client-toolkit v0.12.3
[INFO] [stderr]     Checking winit v0.24.0
[INFO] [stdout] warning: unused imports: `LuaMultiValue`, `LuaResult`, `LuaValue`
[INFO] [stdout]  --> src/api/rovr/display.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | use mlua::prelude::{LuaTable, LuaResult, LuaError, LuaValue, LuaMultiValue};
[INFO] [stdout]   |                               ^^^^^^^^^            ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core_result_to_lua`
[INFO] [stdout]  --> src/api/rovr/display.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 | use api::{forgive_nonfatal, core_result_to_lua};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Error`, `print_nonfatal`
[INFO] [stdout]  --> src/modules/display/mod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::core::{Result, Error, ErrorKind, print_nonfatal};
[INFO] [stdout]   |                           ^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LuaMultiValue`, `LuaResult`, `LuaValue`
[INFO] [stdout]  --> src/api/rovr/display.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | use mlua::prelude::{LuaTable, LuaResult, LuaError, LuaValue, LuaMultiValue};
[INFO] [stdout]   |                               ^^^^^^^^^            ^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core_result_to_lua`
[INFO] [stdout]  --> src/api/rovr/display.rs:8:29
[INFO] [stdout]   |
[INFO] [stdout] 8 | use api::{forgive_nonfatal, core_result_to_lua};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ErrorKind`, `Error`, `print_nonfatal`
[INFO] [stdout]  --> src/modules/display/mod.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::core::{Result, Error, ErrorKind, print_nonfatal};
[INFO] [stdout]   |                           ^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/modules/display/mod.rs:42:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | /         event_loop.run(move |event, _, control_flow: &mut ControlFlow| {
[INFO] [stdout] 31 | |             *control_flow = ControlFlow::Wait;
[INFO] [stdout] 32 | |
[INFO] [stdout] 33 | |             match event {
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |             }
[INFO] [stdout] 40 | |         });
[INFO] [stdout]    | |__________- any code following this expression is unreachable
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extension`
[INFO] [stdout]   --> src/api/lovr/filesystem.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let extension = if (cfg!(target_os = "windows")) { ".dll" } else { ".so" };
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extension`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/modules/display/mod.rs:42:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | /         event_loop.run(move |event, _, control_flow: &mut ControlFlow| {
[INFO] [stdout] 31 | |             *control_flow = ControlFlow::Wait;
[INFO] [stdout] 32 | |
[INFO] [stdout] 33 | |             match event {
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |             }
[INFO] [stdout] 40 | |         });
[INFO] [stdout]    | |__________- any code following this expression is unreachable
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |           Ok(())
[INFO] [stdout]    |           ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lua`
[INFO] [stdout]   --> src/api/rovr/mod.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn getVersion(lua: &Lua, _: ()) -> LuaResult<LuaMultiValue> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_lua`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extension`
[INFO] [stdout]   --> src/api/lovr/filesystem.rs:39:6
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let extension = if (cfg!(target_os = "windows")) { ".dll" } else { ".so" };
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extension`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lua`
[INFO] [stdout]   --> src/api/rovr/mod.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn getVersion(lua: &Lua, _: ()) -> LuaResult<LuaMultiValue> {
[INFO] [stdout]    |               ^^^ help: if this is intentional, prefix it with an underscore: `_lua`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_nonfatal` is never used
[INFO] [stdout]   --> src/api/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn print_nonfatal(result: core::Result<()>) -> LuaResult<bool> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forgive_nonfatal` is never used
[INFO] [stdout]   --> src/core/mod.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn forgive_nonfatal(result: Result<()>) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/modules/display/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct State {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_nonfatal` is never used
[INFO] [stdout]   --> src/api/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn print_nonfatal(result: core::Result<()>) -> LuaResult<bool> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `forgive_nonfatal` is never used
[INFO] [stdout]   --> src/core/mod.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn forgive_nonfatal(result: Result<()>) -> Result<bool> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]   --> src/modules/display/mod.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct State {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.22s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: mlua v0.5.1, nom v6.1.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "4072b06d064ebcc32cec3ea22a97437fdee293f97fb1b96e6dcd211ea6d75d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4072b06d064ebcc32cec3ea22a97437fdee293f97fb1b96e6dcd211ea6d75d57", kill_on_drop: false }`
[INFO] [stdout] 4072b06d064ebcc32cec3ea22a97437fdee293f97fb1b96e6dcd211ea6d75d57