[INFO] cloning repository https://github.com/scratchyone/matrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scratchyone/matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 456e6f7760dee638bffccc12e4cd14f493bf3d9b
[INFO] checking scratchyone/matrix against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscratchyone%2Fmatrix" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/scratchyone/matrix
[INFO] finished tweaking git repo https://github.com/scratchyone/matrix
[INFO] tweaked toml for git repo https://github.com/scratchyone/matrix written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scratchyone/matrix on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scratchyone/matrix 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded siphasher v0.3.3
[INFO] [stderr]   Downloaded signal-hook v0.1.17
[INFO] [stderr]   Downloaded syn v1.0.60
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded lock_api v0.4.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] [stderr]   Downloaded crossterm v0.19.0
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded mio v0.7.7
[INFO] [stderr]   Downloaded running-average v0.1.0
[INFO] [stderr]   Downloaded crossterm_winapi v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1
[INFO] running `Command { std: "docker" "start" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking running-average v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Clear` and `execute`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     execute, queue,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor},
[INFO] [stdout] 5 |     terminal::{self, Clear},
[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 imports: `FromColor` and `IntoColor`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use palette::{FromColor, Gradient, Hsv, IntoColor, LinSrgb};
[INFO] [stdout]   |               ^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::ThreadRng`
[INFO] [stdout]   --> src/main.rs:11:41
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{distributions::Alphanumeric, prelude::ThreadRng};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter` and `thread`
[INFO] [stdout]   --> src/main.rs:13:45
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{collections::HashMap, io::Stdout, iter, thread};
[INFO] [stdout]    |                                             ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Clear` and `execute`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     execute, queue,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor},
[INFO] [stdout] 5 |     terminal::{self, Clear},
[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 imports: `FromColor` and `IntoColor`
[INFO] [stdout]  --> src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | use palette::{FromColor, Gradient, Hsv, IntoColor, LinSrgb};
[INFO] [stdout]   |               ^^^^^^^^^                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::ThreadRng`
[INFO] [stdout]   --> src/main.rs:11:41
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{distributions::Alphanumeric, prelude::ThreadRng};
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `iter` and `thread`
[INFO] [stdout]   --> src/main.rs:13:45
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{collections::HashMap, io::Stdout, iter, thread};
[INFO] [stdout]    |                                             ^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | /     loop {
[INFO] [stdout] 169 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 170 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] ...   |
[INFO] [stdout] 263 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 264 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | /     loop {
[INFO] [stdout] 169 | |         let frame_time_ns = last_frame.elapsed().as_nanos();
[INFO] [stdout] 170 | |         let frame_time_ms = last_frame.elapsed().as_millis();
[INFO] [stdout] ...   |
[INFO] [stdout] 263 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 264 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for ((x, y), item) in &self.terminal {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         for mut line in &mut lines {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |             for ((x, y), item) in &self.terminal {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:175:13
[INFO] [stdout]     |
[INFO] [stdout] 175 |         for mut line in &mut lines {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.73s
[INFO] running `Command { std: "docker" "inspect" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1", kill_on_drop: false }`
[INFO] [stdout] 0b74ca4f0fe84bf906fbf9ea56ca353a369cfed7b3ad2e365f7a95fd2d097ba1
