[INFO] cloning repository https://github.com/mcginty/alti2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcginty/alti2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcginty%2Falti2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcginty%2Falti2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9bf4bbdbd60d10516df859f2e6d210d2746b49f
[INFO] checking mcginty/alti2 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcginty%2Falti2" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcginty/alti2 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcginty/alti2
[INFO] finished tweaking git repo https://github.com/mcginty/alti2
[INFO] tweaked toml for git repo https://github.com/mcginty/alti2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/mcginty/alti2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b50249321d2243a20da59849698024dc9f1249269655af8174d9dcd58760ae9e
[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" "b50249321d2243a20da59849698024dc9f1249269655af8174d9dcd58760ae9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b50249321d2243a20da59849698024dc9f1249269655af8174d9dcd58760ae9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b50249321d2243a20da59849698024dc9f1249269655af8174d9dcd58760ae9e", kill_on_drop: false }`
[INFO] [stdout] b50249321d2243a20da59849698024dc9f1249269655af8174d9dcd58760ae9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33a90df5ff9148638e6b2553f7e78efb65d9e51ad9d317b31cba53dcb5884ab6
[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" "33a90df5ff9148638e6b2553f7e78efb65d9e51ad9d317b31cba53dcb5884ab6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking alti2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     let mut session = Session::open("/dev/ttyUSB0")?;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:271:9
[INFO] [stdout]     |
[INFO] [stdout] 271 |     let mut session = Session::open("/dev/ttyUSB0")?;
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `k`
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     k: [u32; 4],
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `encrypt_single`
[INFO] [stdout]    --> src/main.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub fn encrypt_single(&self, v: &[u32]) -> [u32; 2] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decrypt_single`
[INFO] [stdout]    --> src/main.rs:150:12
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn decrypt_single(&self, v: &[u32]) -> [u32; 2] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `encrypt`
[INFO] [stdout]    --> src/main.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub fn encrypt(&self, bytes: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `decrypt`
[INFO] [stdout]    --> src/main.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn decrypt(&self, bytes: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tty`
[INFO] [stdout]    --> src/main.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 220 |     tty: serial::unix::TTYPort,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cipher`
[INFO] [stdout]    --> src/main.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     cipher: Cipher,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tty`
[INFO] [stdout]    --> src/main.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 220 |     tty: serial::unix::TTYPort,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `cipher`
[INFO] [stdout]    --> src/main.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     cipher: Cipher,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "33a90df5ff9148638e6b2553f7e78efb65d9e51ad9d317b31cba53dcb5884ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a90df5ff9148638e6b2553f7e78efb65d9e51ad9d317b31cba53dcb5884ab6", kill_on_drop: false }`
[INFO] [stdout] 33a90df5ff9148638e6b2553f7e78efb65d9e51ad9d317b31cba53dcb5884ab6