[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 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNiedzwiedzw%2Fdummy-i2c-rust" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Niedzwiedzw/dummy-i2c-rust 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] 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-13/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 7fd26464db0909e74e7e7790d7e2fce5c6b2cb7f976a7b23871d5e1c1d5184b9
[INFO] running `Command { std: "docker" "start" "-a" "7fd26464db0909e74e7e7790d7e2fce5c6b2cb7f976a7b23871d5e1c1d5184b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fd26464db0909e74e7e7790d7e2fce5c6b2cb7f976a7b23871d5e1c1d5184b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd26464db0909e74e7e7790d7e2fce5c6b2cb7f976a7b23871d5e1c1d5184b9", kill_on_drop: false }`
[INFO] [stdout] 7fd26464db0909e74e7e7790d7e2fce5c6b2cb7f976a7b23871d5e1c1d5184b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] f486a39dd2ea32a01f6f55cb723dc456f3417f5e8d798d0deb07804fc2fd84a6
[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" "f486a39dd2ea32a01f6f55cb723dc456f3417f5e8d798d0deb07804fc2fd84a6", 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f486a39dd2ea32a01f6f55cb723dc456f3417f5e8d798d0deb07804fc2fd84a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f486a39dd2ea32a01f6f55cb723dc456f3417f5e8d798d0deb07804fc2fd84a6", kill_on_drop: false }`
[INFO] [stdout] f486a39dd2ea32a01f6f55cb723dc456f3417f5e8d798d0deb07804fc2fd84a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22cad7e6d40a7764b4276535ef430ef80f4419f30e0fe64bbff1011443a9a4b4
[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" "22cad7e6d40a7764b4276535ef430ef80f4419f30e0fe64bbff1011443a9a4b4", 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "22cad7e6d40a7764b4276535ef430ef80f4419f30e0fe64bbff1011443a9a4b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22cad7e6d40a7764b4276535ef430ef80f4419f30e0fe64bbff1011443a9a4b4", kill_on_drop: false }`
[INFO] [stdout] 22cad7e6d40a7764b4276535ef430ef80f4419f30e0fe64bbff1011443a9a4b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5584888abefa0e9d840207f536583f7a524a349df2cab2dd6b071eef9e12df3
[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" "a5584888abefa0e9d840207f536583f7a524a349df2cab2dd6b071eef9e12df3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: variable `portb` is assigned to, but never used
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:100:9
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 100 |     let portb: *mut u8;
[INFO] [stdout] 
[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: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/i2cdummy-96c43abad195f8ba
[INFO] running `Command { std: "docker" "inspect" "a5584888abefa0e9d840207f536583f7a524a349df2cab2dd6b071eef9e12df3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5584888abefa0e9d840207f536583f7a524a349df2cab2dd6b071eef9e12df3", kill_on_drop: false }`
[INFO] [stdout] a5584888abefa0e9d840207f536583f7a524a349df2cab2dd6b071eef9e12df3