[INFO] cloning repository https://github.com/Niedzwiedzw/dummy-i2c-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Niedzwiedzw/dummy-i2c-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b726623e759e33702ac0087d322abcee16b4a68a
[INFO] checking Niedzwiedzw/dummy-i2c-rust against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Niedzwiedzw/dummy-i2c-rust on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Niedzwiedzw/dummy-i2c-rust
[INFO] finished tweaking git repo https://github.com/Niedzwiedzw/dummy-i2c-rust
[INFO] tweaked toml for git repo https://github.com/Niedzwiedzw/dummy-i2c-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Niedzwiedzw/dummy-i2c-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c317042af4a7988d08b5f196409c6bac5a7efdb73cbd4ce98c9704fb3f2637fd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "c317042af4a7988d08b5f196409c6bac5a7efdb73cbd4ce98c9704fb3f2637fd"`
[INFO] [stderr]     Checking i2cdummy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable `portb` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let portb: *mut u8;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_portb` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `portb` is never read
[INFO] [stderr]    --> src/main.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portb` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |     let portb: *mut u8;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_portb` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `portb` is never read
[INFO] [stderr]    --> src/main.rs:122:14
[INFO] [stderr]     |
[INFO] [stderr] 122 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portb` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let portb: *mut u8;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_portb` instead
[INFO] [stderr] 
[INFO] [stderr] error: literal out of range for `u8`
[INFO] [stderr]  --> src/main.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | const TICK: u8 = 500;  // in milliseconds
[INFO] [stderr]   |                  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stderr]   = note: the literal `500` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `portb` is never read
[INFO] [stderr]    --> src/main.rs:101:14
[INFO] [stderr]     |
[INFO] [stderr] 101 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `portb` is assigned to, but never used
[INFO] [stderr]    --> src/main.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |     let portb: *mut u8;
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_portb` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `portb` is never read
[INFO] [stderr]    --> src/main.rs:122:14
[INFO] [stderr]     |
[INFO] [stderr] 122 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `i2cdummy`.
[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] [stderr] error: literal out of range for `u8`
[INFO] [stderr]  --> src/main.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | const TICK: u8 = 500;  // in milliseconds
[INFO] [stderr]   |                  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[deny(overflowing_literals)]` on by default
[INFO] [stderr]   = note: the literal `500` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `i2cdummy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c317042af4a7988d08b5f196409c6bac5a7efdb73cbd4ce98c9704fb3f2637fd"`
[INFO] running `"docker" "rm" "-f" "c317042af4a7988d08b5f196409c6bac5a7efdb73cbd4ce98c9704fb3f2637fd"`
[INFO] [stdout] c317042af4a7988d08b5f196409c6bac5a7efdb73cbd4ce98c9704fb3f2637fd