[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#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MordechaiHadad/nand2tetris-rust on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking MordechaiHadad/nand2tetris-rust against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMordechaiHadad%2Fnand2tetris-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MordechaiHadad/nand2tetris-rust on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d40fcd1d5e10f4b34bba03fb85c85005ea8c13ea3ba3f41dad2ac3d865cf90d
[INFO] running `Command { std: "docker" "start" "-a" "6d40fcd1d5e10f4b34bba03fb85c85005ea8c13ea3ba3f41dad2ac3d865cf90d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d40fcd1d5e10f4b34bba03fb85c85005ea8c13ea3ba3f41dad2ac3d865cf90d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d40fcd1d5e10f4b34bba03fb85c85005ea8c13ea3ba3f41dad2ac3d865cf90d", kill_on_drop: false }`
[INFO] [stdout] 6d40fcd1d5e10f4b34bba03fb85c85005ea8c13ea3ba3f41dad2ac3d865cf90d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e4e3aebb78a292e866aa68ab15e449873c5145297e53ce10f7482ac820b7840
[INFO] running `Command { std: "docker" "start" "-a" "9e4e3aebb78a292e866aa68ab15e449873c5145297e53ce10f7482ac820b7840", 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: 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_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] [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_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 0.22s
[INFO] running `Command { std: "docker" "inspect" "9e4e3aebb78a292e866aa68ab15e449873c5145297e53ce10f7482ac820b7840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e4e3aebb78a292e866aa68ab15e449873c5145297e53ce10f7482ac820b7840", kill_on_drop: false }`
[INFO] [stdout] 9e4e3aebb78a292e866aa68ab15e449873c5145297e53ce10f7482ac820b7840
