[INFO] cloning repository https://github.com/SimonSapin/rust-on-bbc-microbit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SimonSapin/rust-on-bbc-microbit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonSapin%2Frust-on-bbc-microbit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonSapin%2Frust-on-bbc-microbit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78c18b0c62cf695cea804735e74d29caee557b6a
[INFO] checking SimonSapin/rust-on-bbc-microbit against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSimonSapin%2Frust-on-bbc-microbit" "/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/SimonSapin/rust-on-bbc-microbit on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SimonSapin/rust-on-bbc-microbit
[INFO] finished tweaking git repo https://github.com/SimonSapin/rust-on-bbc-microbit
[INFO] tweaked toml for git repo https://github.com/SimonSapin/rust-on-bbc-microbit written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SimonSapin/rust-on-bbc-microbit 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" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b0e346e76b88774ae753846c5bdb88a32b6b1d982ffa0fde739fe6470095399
[INFO] running `Command { std: "docker" "start" "-a" "8b0e346e76b88774ae753846c5bdb88a32b6b1d982ffa0fde739fe6470095399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b0e346e76b88774ae753846c5bdb88a32b6b1d982ffa0fde739fe6470095399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0e346e76b88774ae753846c5bdb88a32b6b1d982ffa0fde739fe6470095399", kill_on_drop: false }`
[INFO] [stdout] 8b0e346e76b88774ae753846c5bdb88a32b6b1d982ffa0fde739fe6470095399
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1121ed822ff45eec9859c2d77a495eae564dca43e0a19cd3f77ce7741ca4514f
[INFO] running `Command { std: "docker" "start" "-a" "1121ed822ff45eec9859c2d77a495eae564dca43e0a19cd3f77ce7741ca4514f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-on-bbc-microbit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/busy_loop.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     unsafe { asm!("" : : "r"(&dummy)) }
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]   --> src/busy_loop.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     unsafe { asm!("" : : "r"(&dummy)) }
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider importing this macro:
[INFO] [stdout]            core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `asm` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items, asm)]
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `asm` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(lang_items, asm)]
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_fmt`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | extern fn panic_fmt(details: ::core::fmt::Arguments, file: &'static str, line: u32) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `core` (which `rust_on_bbc_microbit` depends on)
[INFO] [stdout]    = note: first definition in `core` loaded from /opt/rustwide/rustup-home/toolchains/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-05898138a596088a.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rust_on_bbc_microbit`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_fmt`
[INFO] [stdout]   --> src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | extern fn panic_fmt(details: ::core::fmt::Arguments, file: &'static str, line: u32) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `core` (which `rust_on_bbc_microbit` depends on)
[INFO] [stdout]    = note: first definition in `core` loaded from /opt/rustwide/rustup-home/toolchains/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-05898138a596088a.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rust_on_bbc_microbit`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `eh_personality`
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern fn eh_personality() {}
[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/9610dfe5a9a731ced1ea4923ecbd0c57fe367898/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a8a9ba95b1228749.rlib
[INFO] [stdout]    = note: second definition in the local crate (`rust_on_bbc_microbit`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-on-bbc-microbit` (lib test) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust-on-bbc-microbit` (lib) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1121ed822ff45eec9859c2d77a495eae564dca43e0a19cd3f77ce7741ca4514f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1121ed822ff45eec9859c2d77a495eae564dca43e0a19cd3f77ce7741ca4514f", kill_on_drop: false }`
[INFO] [stdout] 1121ed822ff45eec9859c2d77a495eae564dca43e0a19cd3f77ce7741ca4514f
