[INFO] cloning repository https://github.com/eavae/rust_opencr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eavae/rust_opencr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feavae%2Frust_opencr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feavae%2Frust_opencr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 468e9da8d2c6b55cace8fe41580b63e916d89c55
[INFO] testing eavae/rust_opencr against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feavae%2Frust_opencr" "/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/eavae/rust_opencr on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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/eavae/rust_opencr
[INFO] finished tweaking git repo https://github.com/eavae/rust_opencr
[INFO] tweaked toml for git repo https://github.com/eavae/rust_opencr written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/eavae/rust_opencr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 988e2e5748d7461aa14e35c5d50c96b4a93da16a14d8e5bb7fa209fc39ecfcd7
[INFO] running `Command { std: "docker" "start" "-a" "988e2e5748d7461aa14e35c5d50c96b4a93da16a14d8e5bb7fa209fc39ecfcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "988e2e5748d7461aa14e35c5d50c96b4a93da16a14d8e5bb7fa209fc39ecfcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988e2e5748d7461aa14e35c5d50c96b4a93da16a14d8e5bb7fa209fc39ecfcd7", kill_on_drop: false }`
[INFO] [stdout] 988e2e5748d7461aa14e35c5d50c96b4a93da16a14d8e5bb7fa209fc39ecfcd7
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c9a3312eea98dc351929a0422c0ac0817a399be6e39ffe38c2a574172e43ccb
[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" "0c9a3312eea98dc351929a0422c0ac0817a399be6e39ffe38c2a574172e43ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling stm32f7 v0.11.0
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling micromath v1.0.1
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling as-slice v0.1.3
[INFO] [stderr]    Compiling aligned v0.3.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling stm32f7xx-hal v0.2.0
[INFO] [stderr]    Compiling opencr_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `InputPin`, `StatefulOutputPin`, `toggleable`
[INFO] [stdout]  --> src/led.rs:3:33
[INFO] [stdout]   |
[INFO] [stdout] 3 | use embedded_hal::digital::v2::{toggleable, InputPin, OutputPin, StatefulOutputPin};
[INFO] [stdout]   |                                 ^^^^^^^^^^  ^^^^^^^^             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hal::prelude`
[INFO] [stdout]  --> src/led.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use hal::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `opencr_rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0c9a3312eea98dc351929a0422c0ac0817a399be6e39ffe38c2a574172e43ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c9a3312eea98dc351929a0422c0ac0817a399be6e39ffe38c2a574172e43ccb", kill_on_drop: false }`
[INFO] [stdout] 0c9a3312eea98dc351929a0422c0ac0817a399be6e39ffe38c2a574172e43ccb