[INFO] cloning repository https://github.com/dstutman/k2_firmware
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dstutman/k2_firmware" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstutman%2Fk2_firmware", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstutman%2Fk2_firmware'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 469e91e5f865a4bdb33d7665d585dd913202a629
[INFO] checking dstutman/k2_firmware against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstutman%2Fk2_firmware" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dstutman/k2_firmware 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] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/dstutman/k2_firmware
[INFO] finished tweaking git repo https://github.com/dstutman/k2_firmware
[INFO] tweaked toml for git repo https://github.com/dstutman/k2_firmware written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dstutman/k2_firmware 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 nrf52840-hal v0.15.1
[INFO] [stderr]   Downloaded defmt v0.3.2
[INFO] [stderr]   Downloaded defmt-macros v0.3.2
[INFO] [stderr]   Downloaded panic-probe v0.3.0
[INFO] [stderr]   Downloaded defmt-parser v0.3.1
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded defmt-rtt v0.3.2
[INFO] [stderr]   Downloaded cortex-m v0.7.5
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded embedded-dma v0.2.0
[INFO] [stderr]   Downloaded fixed v1.17.0
[INFO] [stderr]   Downloaded embedded-storage v0.3.0
[INFO] [stderr]   Downloaded nrf52840-pac v0.11.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded nrf-usbd v0.1.1
[INFO] [stderr]   Downloaded nrf-hal-common v0.15.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 088dbfbe1bc113dc3d2b1959e2885dfd81f078b3113ac670911e8ee561f49fa8
[INFO] running `Command { std: "docker" "start" "-a" "088dbfbe1bc113dc3d2b1959e2885dfd81f078b3113ac670911e8ee561f49fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "088dbfbe1bc113dc3d2b1959e2885dfd81f078b3113ac670911e8ee561f49fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088dbfbe1bc113dc3d2b1959e2885dfd81f078b3113ac670911e8ee561f49fa8", kill_on_drop: false }`
[INFO] [stdout] 088dbfbe1bc113dc3d2b1959e2885dfd81f078b3113ac670911e8ee561f49fa8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2ecc08ecdff8d8eb2fb890630370187da844062a178c15cded8b61f883f220b1
[INFO] running `Command { std: "docker" "start" "-a" "2ecc08ecdff8d8eb2fb890630370187da844062a178c15cded8b61f883f220b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling cortex-m v0.7.5
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling critical-section v0.2.7
[INFO] [stderr]    Compiling defmt-macros v0.3.2
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling nrf52840-pac v0.11.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling fixed v1.17.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking bytemuck v1.11.0
[INFO] [stderr]    Compiling nrf-hal-common v0.15.1
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking half v2.1.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling nrf52840-hal v0.15.1
[INFO] [stderr]    Compiling defmt-rtt v0.3.2
[INFO] [stderr]     Checking embedded-storage v0.3.0
[INFO] [stderr]    Compiling k2_firmware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking nrf-usbd v0.1.1
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stdout] warning: trait `EventSignaler` is never used
[INFO] [stdout]   --> src/event_mapper.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait EventSignaler {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeltaTimer` is never used
[INFO] [stdout]   --> src/event_mapper.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub trait DeltaTimer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EventSignaler` is never used
[INFO] [stdout]   --> src/event_mapper.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait EventSignaler {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeltaTimer` is never used
[INFO] [stdout]   --> src/event_mapper.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub trait DeltaTimer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.17s
[INFO] running `Command { std: "docker" "inspect" "2ecc08ecdff8d8eb2fb890630370187da844062a178c15cded8b61f883f220b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ecc08ecdff8d8eb2fb890630370187da844062a178c15cded8b61f883f220b1", kill_on_drop: false }`
[INFO] [stdout] 2ecc08ecdff8d8eb2fb890630370187da844062a178c15cded8b61f883f220b1
[INFO] checking dstutman/k2_firmware against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstutman%2Fk2_firmware" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dstutman/k2_firmware 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] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/dstutman/k2_firmware
[INFO] finished tweaking git repo https://github.com/dstutman/k2_firmware
[INFO] tweaked toml for git repo https://github.com/dstutman/k2_firmware written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/dstutman/k2_firmware 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] aac53bda502eb33b0a79e3cc249ca183c14d09c61dea171fe665a88efa97bcd3
[INFO] running `Command { std: "docker" "start" "-a" "aac53bda502eb33b0a79e3cc249ca183c14d09c61dea171fe665a88efa97bcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aac53bda502eb33b0a79e3cc249ca183c14d09c61dea171fe665a88efa97bcd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac53bda502eb33b0a79e3cc249ca183c14d09c61dea171fe665a88efa97bcd3", kill_on_drop: false }`
[INFO] [stdout] aac53bda502eb33b0a79e3cc249ca183c14d09c61dea171fe665a88efa97bcd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a764640511175b7aab786941c5d0746ce19f44a8138105ac99694085d2f444af
[INFO] running `Command { std: "docker" "start" "-a" "a764640511175b7aab786941c5d0746ce19f44a8138105ac99694085d2f444af", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.5
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling defmt v0.3.2
[INFO] [stderr]    Compiling critical-section v0.2.7
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking bare-metal v1.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling defmt-macros v0.3.2
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]    Compiling fixed v1.17.0
[INFO] [stderr]    Compiling defmt-parser v0.3.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling nrf52840-pac v0.11.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking half v2.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling nrf-hal-common v0.15.1
[INFO] [stderr]     Checking usb-device v0.2.9
[INFO] [stderr]     Checking bytemuck v1.11.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling defmt-rtt v0.3.2
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking embedded-storage v0.3.0
[INFO] [stderr]    Compiling panic-probe v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling nrf52840-hal v0.15.1
[INFO] [stderr]    Compiling k2_firmware v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking nrf-usbd v0.1.1
[INFO] [stderr]     Checking rtt-target v0.3.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stdout] warning: trait `EventSignaler` is never used
[INFO] [stdout]   --> src/event_mapper.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait EventSignaler {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeltaTimer` is never used
[INFO] [stdout]   --> src/event_mapper.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub trait DeltaTimer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EventSignaler` is never used
[INFO] [stdout]   --> src/event_mapper.rs:64:11
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub trait EventSignaler {
[INFO] [stdout]    |           ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DeltaTimer` is never used
[INFO] [stdout]   --> src/event_mapper.rs:68:11
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub trait DeltaTimer {
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.04s
[INFO] running `Command { std: "docker" "inspect" "a764640511175b7aab786941c5d0746ce19f44a8138105ac99694085d2f444af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a764640511175b7aab786941c5d0746ce19f44a8138105ac99694085d2f444af", kill_on_drop: false }`
[INFO] [stdout] a764640511175b7aab786941c5d0746ce19f44a8138105ac99694085d2f444af