[INFO] cloning repository https://github.com/jamesmunns/tiny-nrf52
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesmunns/tiny-nrf52" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesmunns%2Ftiny-nrf52", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesmunns%2Ftiny-nrf52'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cdb8b24e6e502f049e8569b7cf38075ba55923d
[INFO] checking jamesmunns/tiny-nrf52 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamesmunns%2Ftiny-nrf52" "/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/jamesmunns/tiny-nrf52 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jamesmunns/tiny-nrf52
[INFO] finished tweaking git repo https://github.com/jamesmunns/tiny-nrf52
[INFO] tweaked toml for git repo https://github.com/jamesmunns/tiny-nrf52 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jamesmunns/tiny-nrf52 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45f97ba76d35bfb6f8661dda49ee8cefdf6072cbacacd88b048fd1415bfff3f3
[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" "45f97ba76d35bfb6f8661dda49ee8cefdf6072cbacacd88b048fd1415bfff3f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45f97ba76d35bfb6f8661dda49ee8cefdf6072cbacacd88b048fd1415bfff3f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f97ba76d35bfb6f8661dda49ee8cefdf6072cbacacd88b048fd1415bfff3f3", kill_on_drop: false }`
[INFO] [stdout] 45f97ba76d35bfb6f8661dda49ee8cefdf6072cbacacd88b048fd1415bfff3f3
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e22df79415bd1628578c8d6e685e9e627a564e09f4cfa26116d7c89afd6fa705
[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" "e22df79415bd1628578c8d6e685e9e627a564e09f4cfa26116d7c89afd6fa705", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling fpa v0.1.0
[INFO] [stderr]    Compiling nrf52832-pac v0.8.0
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling nrf52832-hal v0.8.1
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling heapless v0.5.1
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]     Checking embedded-timeout-macros v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.0
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr]     Checking panic-reset v0.1.0
[INFO] [stderr]    Compiling hash32-derive v0.1.0
[INFO] [stderr]     Checking ieee802154 v0.3.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking ssmarshal v1.0.0
[INFO] [stderr]     Checking dw1000 v0.3.0
[INFO] [stderr]     Checking nrf52-hal-common v0.8.1
[INFO] [stderr]     Checking dwm1001 v0.3.0
[INFO] [stderr]     Checking tiny-nrf52 v0.1.0 (/opt/rustwide/workdir)
[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_reset` (which `tiny_nrf52` depends on)
[INFO] [stdout]   = note: first definition in `panic_reset` loaded from /opt/rustwide/target/debug/deps/libpanic_reset-50529815831441bb.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8ca495943bae7405.rlib
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tiny-nrf52`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e22df79415bd1628578c8d6e685e9e627a564e09f4cfa26116d7c89afd6fa705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e22df79415bd1628578c8d6e685e9e627a564e09f4cfa26116d7c89afd6fa705", kill_on_drop: false }`
[INFO] [stdout] e22df79415bd1628578c8d6e685e9e627a564e09f4cfa26116d7c89afd6fa705