[INFO] cloning repository https://github.com/bas1c1/NRWM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bas1c1/NRWM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbas1c1%2FNRWM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbas1c1%2FNRWM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e49c6f36cbc6ee5d398a1baa5e86a89e8d07f5fe
[INFO] checking bas1c1/NRWM against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbas1c1%2FNRWM" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bas1c1/NRWM
[INFO] finished tweaking git repo https://github.com/bas1c1/NRWM
[INFO] tweaked toml for git repo https://github.com/bas1c1/NRWM written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bas1c1/NRWM on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bas1c1/NRWM 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xcb v0.10.1
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d07c3d318738316c97fde149c1e35910f55c324ac220d6d5aab641af21df0a20
[INFO] running `Command { std: "docker" "start" "-a" "d07c3d318738316c97fde149c1e35910f55c324ac220d6d5aab641af21df0a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d07c3d318738316c97fde149c1e35910f55c324ac220d6d5aab641af21df0a20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d07c3d318738316c97fde149c1e35910f55c324ac220d6d5aab641af21df0a20", kill_on_drop: false }`
[INFO] [stdout] d07c3d318738316c97fde149c1e35910f55c324ac220d6d5aab641af21df0a20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c79abbdac7f6e1c3914f4ae820dff5494e95f2c2f49942c737b217144db4624
[INFO] running `Command { std: "docker" "start" "-a" "0c79abbdac7f6e1c3914f4ae820dff5494e95f2c2f49942c737b217144db4624", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]     Checking nrwm v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_pop_if)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_char`
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::os::raw::{c_char, c_ulong, c_uchar};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `vec_pop_if` has been stable since 1.86.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_pop_if)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:112:3
[INFO] [stdout]     |
[INFO] [stdout]  57 | /         loop {
[INFO] [stdout]  58 | |             xlib::XNextEvent(disp, &mut e as *mut xlib::XEvent);
[INFO] [stdout]  59 | |             if flag && e.type_ == 19 {
[INFO] [stdout]  60 | |                 flag = false;
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |             updatePanel(disp, _root, panel);
[INFO] [stdout] 110 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 111 |
[INFO] [stdout] 112 |           xlib::XCloseDisplay(disp);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wid`
[INFO] [stdout]    --> src/main.rs:181:22
[INFO] [stdout]     |
[INFO] [stdout] 181 |                     let wid: u32 = xlib::XDisplayWidth(disp, screen).try_into().unwrap();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_wid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hei`
[INFO] [stdout]    --> src/main.rs:182:22
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     let hei: u32 = xlib::XDisplayHeight(disp, screen).try_into().unwrap();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_hei`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root_`
[INFO] [stdout]    --> src/main.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn updatePanel(disp: *mut Display, root_: c_ulong, wnd: xlib::Window) {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_root_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `halfwid`
[INFO] [stdout]    --> src/main.rs:219:7
[INFO] [stdout]     |
[INFO] [stdout] 219 |         let halfwid: i32 = (wid/2).try_into().unwrap();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_halfwid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:234:7
[INFO] [stdout]     |
[INFO] [stdout] 234 |         for i in windows.iter() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrwm` (bin "nrwm" test) due to 1 previous error; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_pop_if)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::mem;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `c_char`
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::os::raw::{c_char, c_ulong, c_uchar};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `vec_pop_if` has been stable since 1.86.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_pop_if)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:112:3
[INFO] [stdout]     |
[INFO] [stdout]  57 | /         loop {
[INFO] [stdout]  58 | |             xlib::XNextEvent(disp, &mut e as *mut xlib::XEvent);
[INFO] [stdout]  59 | |             if flag && e.type_ == 19 {
[INFO] [stdout]  60 | |                 flag = false;
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |             updatePanel(disp, _root, panel);
[INFO] [stdout] 110 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 111 |
[INFO] [stdout] 112 |           xlib::XCloseDisplay(disp);
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `wid`
[INFO] [stdout]    --> src/main.rs:181:22
[INFO] [stdout]     |
[INFO] [stdout] 181 |                     let wid: u32 = xlib::XDisplayWidth(disp, screen).try_into().unwrap();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_wid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hei`
[INFO] [stdout]    --> src/main.rs:182:22
[INFO] [stdout]     |
[INFO] [stdout] 182 |                     let hei: u32 = xlib::XDisplayHeight(disp, screen).try_into().unwrap();
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_hei`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root_`
[INFO] [stdout]    --> src/main.rs:212:36
[INFO] [stdout]     |
[INFO] [stdout] 212 | fn updatePanel(disp: *mut Display, root_: c_ulong, wnd: xlib::Window) {
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_root_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `halfwid`
[INFO] [stdout]    --> src/main.rs:219:7
[INFO] [stdout]     |
[INFO] [stdout] 219 |         let halfwid: i32 = (wid/2).try_into().unwrap();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_halfwid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:234:7
[INFO] [stdout]     |
[INFO] [stdout] 234 |         for i in windows.iter() {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrwm` (bin "nrwm") due to 1 previous error; 10 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0c79abbdac7f6e1c3914f4ae820dff5494e95f2c2f49942c737b217144db4624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c79abbdac7f6e1c3914f4ae820dff5494e95f2c2f49942c737b217144db4624", kill_on_drop: false }`
[INFO] [stdout] 0c79abbdac7f6e1c3914f4ae820dff5494e95f2c2f49942c737b217144db4624
