[INFO] cloning repository https://github.com/Niedzwiedzw/dummy-i2c-rust
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b726623e759e33702ac0087d322abcee16b4a68a
[INFO] testing Niedzwiedzw/dummy-i2c-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Niedzwiedzw/dummy-i2c-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-94/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6233e193fcc8e9ecee9b710cdb12f22ed374216a77c62023d85ca6b919a49eae
[INFO] running `Command { std: "docker" "start" "-a" "6233e193fcc8e9ecee9b710cdb12f22ed374216a77c62023d85ca6b919a49eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6233e193fcc8e9ecee9b710cdb12f22ed374216a77c62023d85ca6b919a49eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6233e193fcc8e9ecee9b710cdb12f22ed374216a77c62023d85ca6b919a49eae", kill_on_drop: false }`
[INFO] [stdout] 6233e193fcc8e9ecee9b710cdb12f22ed374216a77c62023d85ca6b919a49eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8747d845ff9cd91d893fb98d9b1341db4a3ab9a55c5f37fc42af11e4b6e75962
[INFO] running `Command { std: "docker" "start" "-a" "8747d845ff9cd91d893fb98d9b1341db4a3ab9a55c5f37fc42af11e4b6e75962", kill_on_drop: false }`
[INFO] [stderr]    Compiling i2cdummy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `portb` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let portb: *mut u8;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_portb` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `portb` is never read
[INFO] [stdout]    --> src/main.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portb` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let portb: *mut u8;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_portb` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `portb` is never read
[INFO] [stdout]    --> src/main.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 122 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: literal out of range for `u8`
[INFO] [stdout]  --> src/main.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | const TICK: u8 = 500;  // in milliseconds
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(overflowing_literals)]` on by default
[INFO] [stdout]   = note: the literal `500` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.74s
[INFO] running `Command { std: "docker" "inspect" "8747d845ff9cd91d893fb98d9b1341db4a3ab9a55c5f37fc42af11e4b6e75962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8747d845ff9cd91d893fb98d9b1341db4a3ab9a55c5f37fc42af11e4b6e75962", kill_on_drop: false }`
[INFO] [stdout] 8747d845ff9cd91d893fb98d9b1341db4a3ab9a55c5f37fc42af11e4b6e75962
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfc77715a075026c338ef121283f034a4dc16c6386e98546b72fb2489ef98711
[INFO] running `Command { std: "docker" "start" "-a" "bfc77715a075026c338ef121283f034a4dc16c6386e98546b72fb2489ef98711", kill_on_drop: false }`
[INFO] [stderr]    Compiling i2cdummy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `portb` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |     let portb: *mut u8;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_portb` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `portb` is never read
[INFO] [stdout]    --> src/main.rs:101:14
[INFO] [stdout]     |
[INFO] [stdout] 101 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `portb` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |     let portb: *mut u8;
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_portb` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `portb` is never read
[INFO] [stdout]    --> src/main.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 122 |     unsafe { portb = &mut PORTB as *mut u8; };
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: literal out of range for `u8`
[INFO] [stdout]  --> src/main.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | const TICK: u8 = 500;  // in milliseconds
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(overflowing_literals)]` on by default
[INFO] [stdout]   = note: the literal `500` does not fit into the type `u8` whose range is `0..=255`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "bfc77715a075026c338ef121283f034a4dc16c6386e98546b72fb2489ef98711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc77715a075026c338ef121283f034a4dc16c6386e98546b72fb2489ef98711", kill_on_drop: false }`
[INFO] [stdout] bfc77715a075026c338ef121283f034a4dc16c6386e98546b72fb2489ef98711
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] accecced8ff1d521dce2aa02141ac14379b17f95b5adebbdfdc3cb76f62687fb
[INFO] running `Command { std: "docker" "start" "-a" "accecced8ff1d521dce2aa02141ac14379b17f95b5adebbdfdc3cb76f62687fb", kill_on_drop: false }`
[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: 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: `#[warn(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: `i2cdummy` (bin "i2cdummy" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/i2cdummy-df6dbcc331fb3d7e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "accecced8ff1d521dce2aa02141ac14379b17f95b5adebbdfdc3cb76f62687fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "accecced8ff1d521dce2aa02141ac14379b17f95b5adebbdfdc3cb76f62687fb", kill_on_drop: false }`
[INFO] [stdout] accecced8ff1d521dce2aa02141ac14379b17f95b5adebbdfdc3cb76f62687fb