[INFO] cloning repository https://github.com/Osama530/stm32_i2c
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Osama530/stm32_i2c" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsama530%2Fstm32_i2c", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsama530%2Fstm32_i2c'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56274ecd5f5631506f92e4e2114471b695293629
[INFO] checking Osama530/stm32_i2c against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOsama530%2Fstm32_i2c" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Osama530/stm32_i2c on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Osama530/stm32_i2c
[INFO] finished tweaking git repo https://github.com/Osama530/stm32_i2c
[INFO] tweaked toml for git repo https://github.com/Osama530/stm32_i2c written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Osama530/stm32_i2c already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63b573aedbb7d90b575793dbc90ddfecc9c7aff76c24e66da3e711e0e975dbfa
[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" "63b573aedbb7d90b575793dbc90ddfecc9c7aff76c24e66da3e711e0e975dbfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63b573aedbb7d90b575793dbc90ddfecc9c7aff76c24e66da3e711e0e975dbfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b573aedbb7d90b575793dbc90ddfecc9c7aff76c24e66da3e711e0e975dbfa", kill_on_drop: false }`
[INFO] [stdout] 63b573aedbb7d90b575793dbc90ddfecc9c7aff76c24e66da3e711e0e975dbfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 754831005b603557714bdb779dd09a31c83100f36e2afe72518d64c17cae8d8b
[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" "754831005b603557714bdb779dd09a31c83100f36e2afe72518d64c17cae8d8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling stm32f3 v0.10.0
[INFO] [stderr]    Compiling i2c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking aligned v0.3.2
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stdout] warning: unused import: `hprint`
[INFO] [stdout]  --> src/main.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 | use cortex_m_semihosting::{hprint, hprintln};
[INFO] [stdout]   |                            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stm32f3::stm32f303`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use stm32f3::stm32f303;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hprint`
[INFO] [stdout]  --> src/main.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 | use cortex_m_semihosting::{hprint, hprintln};
[INFO] [stdout]   |                            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stm32f3::stm32f303`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use stm32f3::stm32f303;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[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 `i2c` depends on)
[INFO] [stdout]   = note: first definition in `panic_semihosting` loaded from /opt/rustwide/target/debug/deps/libpanic_semihosting-54a79a1456a273d6.rmeta
[INFO] [stdout]   = note: second definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/90442458ac46b1d5eed752c316da25450f67285b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib
[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 `i2c`
[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; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "754831005b603557714bdb779dd09a31c83100f36e2afe72518d64c17cae8d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754831005b603557714bdb779dd09a31c83100f36e2afe72518d64c17cae8d8b", kill_on_drop: false }`
[INFO] [stdout] 754831005b603557714bdb779dd09a31c83100f36e2afe72518d64c17cae8d8b