[INFO] cloning repository https://github.com/magnus-lindstrom/keyboard_simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magnus-lindstrom/keyboard_simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnus-lindstrom%2Fkeyboard_simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnus-lindstrom%2Fkeyboard_simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7c5ec5fa629cd20b934bd43fec0166391a88bc7
[INFO] checking magnus-lindstrom/keyboard_simulator against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnus-lindstrom%2Fkeyboard_simulator" "/workspace/builds/worker-67/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-67/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/magnus-lindstrom/keyboard_simulator on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/magnus-lindstrom/keyboard_simulator
[INFO] finished tweaking git repo https://github.com/magnus-lindstrom/keyboard_simulator
[INFO] tweaked toml for git repo https://github.com/magnus-lindstrom/keyboard_simulator written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate git repo https://github.com/magnus-lindstrom/keyboard_simulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9489e608da2d54edba043d0c777e9611665af875b07695eb0c6a06b1e1bdaee
[INFO] running `Command { std: "docker" "start" "-a" "c9489e608da2d54edba043d0c777e9611665af875b07695eb0c6a06b1e1bdaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9489e608da2d54edba043d0c777e9611665af875b07695eb0c6a06b1e1bdaee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9489e608da2d54edba043d0c777e9611665af875b07695eb0c6a06b1e1bdaee", kill_on_drop: false }`
[INFO] [stdout] c9489e608da2d54edba043d0c777e9611665af875b07695eb0c6a06b1e1bdaee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59085559195f27589b69cb3497a35c6b12c67f9e584d5059a70fb9eb59e003f2
[INFO] running `Command { std: "docker" "start" "-a" "59085559195f27589b69cb3497a35c6b12c67f9e584d5059a70fb9eb59e003f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking keyboard_optimiser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_write`
[INFO] [stdout]   --> src/lib.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn test_write() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deb`
[INFO] [stdout]    --> src/lib.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn deb<T: std::fmt::Debug>(x: T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_write`
[INFO] [stdout]   --> src/lib.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn test_write() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pause`
[INFO] [stdout]    --> src/lib.rs:620:4
[INFO] [stdout]     |
[INFO] [stdout] 620 | fn pause() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deb`
[INFO] [stdout]    --> src/lib.rs:138:4
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn deb<T: std::fmt::Debug>(x: T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pause`
[INFO] [stdout]    --> src/lib.rs:620:4
[INFO] [stdout]     |
[INFO] [stdout] 620 | fn pause() {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     file.write_all(s.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     file.write_all(s.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 54.31s
[INFO] running `Command { std: "docker" "inspect" "59085559195f27589b69cb3497a35c6b12c67f9e584d5059a70fb9eb59e003f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59085559195f27589b69cb3497a35c6b12c67f9e584d5059a70fb9eb59e003f2", kill_on_drop: false }`
[INFO] [stdout] 59085559195f27589b69cb3497a35c6b12c67f9e584d5059a70fb9eb59e003f2