[INFO] cloning repository https://github.com/prefiks/crown-controller
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/prefiks/crown-controller" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprefiks%2Fcrown-controller", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprefiks%2Fcrown-controller'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef8a708f1efa3127e97f7d234e508e5b0638edb0
[INFO] checking prefiks/crown-controller against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprefiks%2Fcrown-controller" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prefiks/crown-controller on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/prefiks/crown-controller
[INFO] finished tweaking git repo https://github.com/prefiks/crown-controller
[INFO] tweaked toml for git repo https://github.com/prefiks/crown-controller written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/prefiks/crown-controller 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded directories v3.0.1
[INFO] [stderr]   Downloaded pico-args v0.3.4
[INFO] [stderr]   Downloaded gethostname v0.2.1
[INFO] [stderr]   Downloaded x11rb v0.6.0
[INFO] [stderr]   Downloaded udev v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62f2dacf30f65272f2183d20c3fdeda9b3aab46ee4581a28f8a6c8f2c35c2720
[INFO] running `Command { std: "docker" "start" "-a" "62f2dacf30f65272f2183d20c3fdeda9b3aab46ee4581a28f8a6c8f2c35c2720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62f2dacf30f65272f2183d20c3fdeda9b3aab46ee4581a28f8a6c8f2c35c2720", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f2dacf30f65272f2183d20c3fdeda9b3aab46ee4581a28f8a6c8f2c35c2720", kill_on_drop: false }`
[INFO] [stdout] 62f2dacf30f65272f2183d20c3fdeda9b3aab46ee4581a28f8a6c8f2c35c2720
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d6898b25d476a38e0fccbf54f567a8d4e5a4f9b000ce395dc0754770397c61
[INFO] running `Command { std: "docker" "start" "-a" "18d6898b25d476a38e0fccbf54f567a8d4e5a4f9b000ce395dc0754770397c61", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]     Checking udev v0.4.0
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling crown-controller v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking x11rb v0.6.0
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/hid.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/hid.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FocusChanged { pid: u32, program: String },
[INFO] [stdout]    |     ------------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FocusChanged { pid: u32, program: String },
[INFO] [stdout]    |     ------------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.36s
[INFO] running `Command { std: "docker" "inspect" "18d6898b25d476a38e0fccbf54f567a8d4e5a4f9b000ce395dc0754770397c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d6898b25d476a38e0fccbf54f567a8d4e5a4f9b000ce395dc0754770397c61", kill_on_drop: false }`
[INFO] [stdout] 18d6898b25d476a38e0fccbf54f567a8d4e5a4f9b000ce395dc0754770397c61
[INFO] checking prefiks/crown-controller against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprefiks%2Fcrown-controller" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/prefiks/crown-controller on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/prefiks/crown-controller
[INFO] finished tweaking git repo https://github.com/prefiks/crown-controller
[INFO] tweaked toml for git repo https://github.com/prefiks/crown-controller written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/prefiks/crown-controller 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57a5ccd3c5e509865eabc7b0fc1a40890f3318ae20a590b091a63f4782239b85
[INFO] running `Command { std: "docker" "start" "-a" "57a5ccd3c5e509865eabc7b0fc1a40890f3318ae20a590b091a63f4782239b85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57a5ccd3c5e509865eabc7b0fc1a40890f3318ae20a590b091a63f4782239b85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a5ccd3c5e509865eabc7b0fc1a40890f3318ae20a590b091a63f4782239b85", kill_on_drop: false }`
[INFO] [stdout] 57a5ccd3c5e509865eabc7b0fc1a40890f3318ae20a590b091a63f4782239b85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a53527e424bfd5a22fbbc92e16018d11419f4e08b8356dedb675cfc13d8ddb91
[INFO] running `Command { std: "docker" "start" "-a" "a53527e424bfd5a22fbbc92e16018d11419f4e08b8356dedb675cfc13d8ddb91", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking udev v0.4.0
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling crown-controller v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking x11rb v0.6.0
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/hid.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/hid.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use libc;
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FocusChanged { pid: u32, program: String },
[INFO] [stdout]    |     ------------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pid` is never read
[INFO] [stdout]   --> src/main.rs:17:20
[INFO] [stdout]    |
[INFO] [stdout] 17 |     FocusChanged { pid: u32, program: String },
[INFO] [stdout]    |     ------------   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.20s
[INFO] running `Command { std: "docker" "inspect" "a53527e424bfd5a22fbbc92e16018d11419f4e08b8356dedb675cfc13d8ddb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a53527e424bfd5a22fbbc92e16018d11419f4e08b8356dedb675cfc13d8ddb91", kill_on_drop: false }`
[INFO] [stdout] a53527e424bfd5a22fbbc92e16018d11419f4e08b8356dedb675cfc13d8ddb91