[INFO] cloning repository https://github.com/MordechaiHadad/nand2tetris-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MordechaiHadad/nand2tetris-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2aea09f5d44f9952510bdecee467735614b3b86a
[INFO] checking MordechaiHadad/nand2tetris-rust against try#ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1 for pr-145108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MordechaiHadad/nand2tetris-rust
[INFO] finished tweaking git repo https://github.com/MordechaiHadad/nand2tetris-rust
[INFO] tweaked toml for git repo https://github.com/MordechaiHadad/nand2tetris-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MordechaiHadad/nand2tetris-rust on toolchain ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MordechaiHadad/nand2tetris-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking MordechaiHadad/nand2tetris-rust against try#ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1 for pr-145108
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MordechaiHadad/nand2tetris-rust
[INFO] finished tweaking git repo https://github.com/MordechaiHadad/nand2tetris-rust
[INFO] tweaked toml for git repo https://github.com/MordechaiHadad/nand2tetris-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MordechaiHadad/nand2tetris-rust on toolchain ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MordechaiHadad/nand2tetris-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d7c0489974bd23ea9e57fa1f3d11aaae69c19c92bce18f1a3399609ee66e551
[INFO] running `Command { std: "docker" "start" "-a" "0d7c0489974bd23ea9e57fa1f3d11aaae69c19c92bce18f1a3399609ee66e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d7c0489974bd23ea9e57fa1f3d11aaae69c19c92bce18f1a3399609ee66e551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7c0489974bd23ea9e57fa1f3d11aaae69c19c92bce18f1a3399609ee66e551", kill_on_drop: false }`
[INFO] [stdout] 0d7c0489974bd23ea9e57fa1f3d11aaae69c19c92bce18f1a3399609ee66e551
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a6e88b9e0e22130824fcb86e1cbff3273e167b5e571437aaafff07f9cf95731
[INFO] running `Command { std: "docker" "start" "-a" "9a6e88b9e0e22130824fcb86e1cbff3273e167b5e571437aaafff07f9cf95731", kill_on_drop: false }`
[INFO] [stderr]     Checking nand2tetris-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `hi`
[INFO] [stdout]   --> src/alu.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let hi = [false; 8];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hi`
[INFO] [stdout]   --> src/alu.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 |     let hi = [false; 8];
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_hi`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux` is never used
[INFO] [stdout]   --> src/gates.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn dmux(x: bool, sel: bool) -> (bool, bool) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `or_16` is never used
[INFO] [stdout]   --> src/gates.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn or_16(x: [bool; 16], y: [bool; 16]) -> [bool; 16] {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mux_4_way_16` is never used
[INFO] [stdout]    --> src/gates.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn mux_4_way_16(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mux_8_way_16` is never used
[INFO] [stdout]    --> src/gates.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn mux_8_way_16(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux` is never used
[INFO] [stdout]   --> src/gates.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn dmux(x: bool, sel: bool) -> (bool, bool) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `or_16` is never used
[INFO] [stdout]   --> src/gates.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn or_16(x: [bool; 16], y: [bool; 16]) -> [bool; 16] {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux_4_way` is never used
[INFO] [stdout]    --> src/gates.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub fn dmux_4_way(x: bool, sel: [bool; 2]) -> (bool, bool, bool, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux_8_way` is never used
[INFO] [stdout]    --> src/gates.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn dmux_8_way(x: bool, sel: [bool; 3]) -> (bool, bool, bool, bool, bool, bool, bool, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mux_4_way_16` is never used
[INFO] [stdout]    --> src/gates.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn mux_4_way_16(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `increment_16` is never used
[INFO] [stdout]   --> src/alu.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn increment_16(x: [bool; 16]) -> [bool; 16] {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `out`, `zr`, and `ng` are never read
[INFO] [stdout]   --> src/alu.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct AluResult {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 60 |     out: [bool; 16],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 61 |     zr: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 62 |     ng: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AluResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mux_8_way_16` is never used
[INFO] [stdout]    --> src/gates.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub fn mux_8_way_16(
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux_4_way` is never used
[INFO] [stdout]    --> src/gates.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub fn dmux_4_way(x: bool, sel: [bool; 2]) -> (bool, bool, bool, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dmux_8_way` is never used
[INFO] [stdout]    --> src/gates.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn dmux_8_way(x: bool, sel: [bool; 3]) -> (bool, bool, bool, bool, bool, bool, bool, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `increment_16` is never used
[INFO] [stdout]   --> src/alu.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn increment_16(x: [bool; 16]) -> [bool; 16] {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `out`, `zr`, and `ng` are never read
[INFO] [stdout]   --> src/alu.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct AluResult {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 60 |     out: [bool; 16],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 61 |     zr: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 62 |     ng: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AluResult` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "9a6e88b9e0e22130824fcb86e1cbff3273e167b5e571437aaafff07f9cf95731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a6e88b9e0e22130824fcb86e1cbff3273e167b5e571437aaafff07f9cf95731", kill_on_drop: false }`
[INFO] [stdout] 9a6e88b9e0e22130824fcb86e1cbff3273e167b5e571437aaafff07f9cf95731