[INFO] cloning repository https://github.com/blueluna/nrf52840-dongle-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blueluna/nrf52840-dongle-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueluna%2Fnrf52840-dongle-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueluna%2Fnrf52840-dongle-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cc81c6b52095edd3b84be793ae7817fd09551f5
[INFO] checking blueluna/nrf52840-dongle-experiments against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblueluna%2Fnrf52840-dongle-experiments" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blueluna/nrf52840-dongle-experiments on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/blueluna/nrf52840-dongle-experiments
[INFO] finished tweaking git repo https://github.com/blueluna/nrf52840-dongle-experiments
[INFO] tweaked toml for git repo https://github.com/blueluna/nrf52840-dongle-experiments written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/blueluna/nrf52840-dongle-experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c7bd9b4a28456fa3b89b89032f3f89313f8ca3d5a351502e08e879c742f51039
[INFO] running `Command { std: "docker" "start" "-a" "c7bd9b4a28456fa3b89b89032f3f89313f8ca3d5a351502e08e879c742f51039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7bd9b4a28456fa3b89b89032f3f89313f8ca3d5a351502e08e879c742f51039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7bd9b4a28456fa3b89b89032f3f89313f8ca3d5a351502e08e879c742f51039", kill_on_drop: false }`
[INFO] [stdout] c7bd9b4a28456fa3b89b89032f3f89313f8ca3d5a351502e08e879c742f51039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af6963db45a8038fc8c5258f8a438afa93f05a8da70673ed872b0b8d72bbf749
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "af6963db45a8038fc8c5258f8a438afa93f05a8da70673ed872b0b8d72bbf749", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]     Checking vcell v0.1.0
[INFO] [stderr]    Compiling cortex-m v0.5.8
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.7
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]    Compiling nrf52840-pac v0.6.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.2
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr]    Compiling nrf52840-hal v0.7.0 (https://github.com/nrf-rs/nrf52-hal?branch=master#fccc7831)
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m-rtfm v0.4.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.2
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.0
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking heapless v0.4.2
[INFO] [stderr]     Checking panic-semihosting v0.5.1
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling owned-singleton-macros v0.1.0
[INFO] [stderr]    Compiling cortex-m-rtfm-macros v0.4.2
[INFO] [stderr]     Checking owned-singleton v0.1.0
[INFO] [stderr]     Checking nrf52-hal-common v0.7.0 (https://github.com/nrf-rs/nrf52-hal?branch=master#fccc7831)
[INFO] [stderr]     Checking nrf52840-dongle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: 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_semihosting` (which `nrf52840_dongle` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-d4f8045b8187e09e.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-6f5658153d127ddd.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf52840-dongle`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af6963db45a8038fc8c5258f8a438afa93f05a8da70673ed872b0b8d72bbf749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af6963db45a8038fc8c5258f8a438afa93f05a8da70673ed872b0b8d72bbf749", kill_on_drop: false }`
[INFO] [stdout] af6963db45a8038fc8c5258f8a438afa93f05a8da70673ed872b0b8d72bbf749