[INFO] fetching crate crabik-board 0.1.1...
[INFO] testing crabik-board-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate crabik-board 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate crabik-board 0.1.1
[INFO] finished tweaking crates.io crate crabik-board 0.1.1
[INFO] tweaked toml for crates.io crate crabik-board 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate crabik-board 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding cortex-m-rt v0.6.15 (available: v0.7.5)
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding nrf52810-hal v0.12.2 (available: v0.19.0)
[INFO] [stderr]       Adding nrf52810-pac v0.9.0 (available: v0.12.2)
[INFO] [stderr]       Adding rtt-target v0.3.1 (available: v0.6.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded as-slice v0.1.5
[INFO] [stderr]   Downloaded aligned v0.3.5
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded nrf52810-hal v0.12.2
[INFO] [stderr]   Downloaded cast v0.2.7
[INFO] [stderr]   Downloaded generic-array v0.12.4
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] [stderr]   Downloaded fixed v1.29.0
[INFO] [stderr]   Downloaded nrf-hal-common v0.12.2
[INFO] [stderr]   Downloaded nrf52810-pac v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00663d48cdd9e5e719a5f07736aa9df524ee44c3d6cccf3afc8c8bd7efdea6fe
[INFO] running `Command { std: "docker" "start" "-a" "00663d48cdd9e5e719a5f07736aa9df524ee44c3d6cccf3afc8c8bd7efdea6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00663d48cdd9e5e719a5f07736aa9df524ee44c3d6cccf3afc8c8bd7efdea6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00663d48cdd9e5e719a5f07736aa9df524ee44c3d6cccf3afc8c8bd7efdea6fe", kill_on_drop: false }`
[INFO] [stdout] 00663d48cdd9e5e719a5f07736aa9df524ee44c3d6cccf3afc8c8bd7efdea6fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6746842bbad4bc1b09e383698589d445f4f4fcbc8531f79fe43717fef8f60600
[INFO] running `Command { std: "docker" "start" "-a" "6746842bbad4bc1b09e383698589d445f4f4fcbc8531f79fe43717fef8f60600", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling fixed v1.29.0
[INFO] [stderr]    Compiling nrf52810-pac v0.9.0
[INFO] [stderr]    Compiling nrf-hal-common v0.12.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling embedded-dma v0.1.2
[INFO] [stderr]    Compiling nrf52810-hal v0.12.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling crabik-board v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling rtt-target v0.3.1
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling aligned v0.3.5
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 36.10s
[INFO] running `Command { std: "docker" "inspect" "6746842bbad4bc1b09e383698589d445f4f4fcbc8531f79fe43717fef8f60600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6746842bbad4bc1b09e383698589d445f4f4fcbc8531f79fe43717fef8f60600", kill_on_drop: false }`
[INFO] [stdout] 6746842bbad4bc1b09e383698589d445f4f4fcbc8531f79fe43717fef8f60600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afdeddc22d0e2670d1eb36969dc47d17f2c48b373064e96e11329e681e8b4e6f
[INFO] running `Command { std: "docker" "start" "-a" "afdeddc22d0e2670d1eb36969dc47d17f2c48b373064e96e11329e681e8b4e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling crabik-board v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/lib.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stdout] 53 | |     rprintln!("{}", info);
[INFO] [stdout] ...  |
[INFO] [stdout] 57 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d73d50f7d7b085f5.so, /opt/rustwide/rustup-home/toolchains/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d73d50f7d7b085f5.rlib
[INFO] [stdout]    = note: second definition in the local crate (`crabik_board`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crabik-board` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "afdeddc22d0e2670d1eb36969dc47d17f2c48b373064e96e11329e681e8b4e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afdeddc22d0e2670d1eb36969dc47d17f2c48b373064e96e11329e681e8b4e6f", kill_on_drop: false }`
[INFO] [stdout] afdeddc22d0e2670d1eb36969dc47d17f2c48b373064e96e11329e681e8b4e6f