[INFO] cloning repository https://github.com/ardentTech/mv_v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ardentTech/mv_v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardentTech%2Fmv_v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardentTech%2Fmv_v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a18f54768d0abdb4fd5b743067c8b413f40c3022
[INFO] checking ardentTech/mv_v2 against try#fe84aa3583bb2681b5d0580316bde6d58ccfd6b5 for pr-154149-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FardentTech%2Fmv_v2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ardentTech/mv_v2
[INFO] finished tweaking git repo https://github.com/ardentTech/mv_v2
[INFO] tweaked toml for git repo https://github.com/ardentTech/mv_v2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ardentTech/mv_v2 on toolchain fe84aa3583bb2681b5d0580316bde6d58ccfd6b5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe84aa3583bb2681b5d0580316bde6d58ccfd6b5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ardentTech/mv_v2 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" "+fe84aa3583bb2681b5d0580316bde6d58ccfd6b5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+fe84aa3583bb2681b5d0580316bde6d58ccfd6b5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61a658d21d99aaaa2e00e486e4dcbaa58392370e05a78f4ad8fe7ab9a825a950
[INFO] running `Command { std: "docker" "start" "-a" "61a658d21d99aaaa2e00e486e4dcbaa58392370e05a78f4ad8fe7ab9a825a950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61a658d21d99aaaa2e00e486e4dcbaa58392370e05a78f4ad8fe7ab9a825a950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61a658d21d99aaaa2e00e486e4dcbaa58392370e05a78f4ad8fe7ab9a825a950", kill_on_drop: false }`
[INFO] [stdout] 61a658d21d99aaaa2e00e486e4dcbaa58392370e05a78f4ad8fe7ab9a825a950
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+fe84aa3583bb2681b5d0580316bde6d58ccfd6b5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8252e85878b50b30fd2ae0df392353cbfbe20dad4c7c36f43f8b7c9b75dff36
[INFO] running `Command { std: "docker" "start" "-a" "b8252e85878b50b30fd2ae0df392353cbfbe20dad4c7c36f43f8b7c9b75dff36", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling portable-atomic v1.10.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking critical-section v1.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile-register v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling nrf52833-pac v0.12.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling fixed v1.28.0
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking half v2.4.1
[INFO] [stderr]     Checking bytemuck v1.21.0
[INFO] [stderr]    Compiling nrf-hal-common v0.18.0
[INFO] [stderr]     Checking embedded-dma v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]    Compiling defmt-macros v0.4.0
[INFO] [stderr]     Checking embedded-storage v0.3.1
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]    Compiling nrf52833-hal v0.18.0
[INFO] [stderr]     Checking embedded-io v0.6.1
[INFO] [stderr]    Compiling defmt v0.3.10
[INFO] [stderr]    Compiling defmt-rtt v0.4.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking tiny-led-matrix v1.0.2
[INFO] [stderr]     Checking panic-halt v1.0.0
[INFO] [stderr]     Checking log v0.4.25
[INFO] [stderr]     Checking usb-device v0.3.2
[INFO] [stderr]     Checking nrf-usbd v0.3.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling defmt-parser v0.4.1
[INFO] [stderr]     Checking microbit-common v0.15.1
[INFO] [stderr]     Checking microbit-v2 v0.15.1
[INFO] [stderr]     Checking mb_v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: duplicate lang item in crate `std` (which `test` depends on): `panic_impl`
[INFO] [stdout]   |
[INFO] [stdout]   = note: the lang item is first defined in crate `panic_halt` (which `mb_v2` depends on)
[INFO] [stdout]   = note: first definition in `panic_halt` loaded from /opt/rustwide/target/debug/deps/libpanic_halt-357548d739fe60f4.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/fe84aa3583bb2681b5d0580316bde6d58ccfd6b5/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-fa01d964e82d0da8.rmeta
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mb_v2` (bin "mb_v2" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mb_v2` (bin "mb_v2") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b8252e85878b50b30fd2ae0df392353cbfbe20dad4c7c36f43f8b7c9b75dff36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8252e85878b50b30fd2ae0df392353cbfbe20dad4c7c36f43f8b7c9b75dff36", kill_on_drop: false }`
[INFO] [stdout] b8252e85878b50b30fd2ae0df392353cbfbe20dad4c7c36f43f8b7c9b75dff36