[INFO] cloning repository https://github.com/konbu310/nand2tetris-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/konbu310/nand2tetris-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonbu310%2Fnand2tetris-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonbu310%2Fnand2tetris-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e2046e79e72dfbe1777bd592e3fd34588884613
[INFO] checking konbu310/nand2tetris-rs against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkonbu310%2Fnand2tetris-rs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/konbu310/nand2tetris-rs on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/konbu310/nand2tetris-rs
[INFO] finished tweaking git repo https://github.com/konbu310/nand2tetris-rs
[INFO] tweaked toml for git repo https://github.com/konbu310/nand2tetris-rs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/konbu310/nand2tetris-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0f56740ff91a31299b04bfea7ede940e91be287529df28fee69b1d109dcf2f9
[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" "c0f56740ff91a31299b04bfea7ede940e91be287529df28fee69b1d109dcf2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0f56740ff91a31299b04bfea7ede940e91be287529df28fee69b1d109dcf2f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f56740ff91a31299b04bfea7ede940e91be287529df28fee69b1d109dcf2f9", kill_on_drop: false }`
[INFO] [stdout] c0f56740ff91a31299b04bfea7ede940e91be287529df28fee69b1d109dcf2f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 650e82b38477303cedb352fd598743ad95e1d9e022336920695169a9c6188e70
[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" "650e82b38477303cedb352fd598743ad95e1d9e022336920695169a9c6188e70", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking nand2tetris-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Into`
[INFO] [stdout]  --> src/logic.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{From, Into};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Into`
[INFO] [stdout]  --> src/logic.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::{From, Into};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `half_adder`
[INFO] [stdout]  --> src/arithmetic.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn half_adder(a: Bit, b: Bit) -> [Bit; 2] {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `full_adder`
[INFO] [stdout]  --> src/arithmetic.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn full_adder(a: Bit, b: Bit, c: Bit) -> [Bit; 2] {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add16`
[INFO] [stdout]   --> src/arithmetic.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn add16(a: Word, b: Word) -> Word {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inc16`
[INFO] [stdout]   --> src/arithmetic.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn inc16(a: Word) -> Word {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alu`
[INFO] [stdout]   --> src/arithmetic.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn alu(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_slice`
[INFO] [stdout]   --> src/logic.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn to_slice(&self) -> [Bit; 16] {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `nand`
[INFO] [stdout]    --> src/logic.rs:135:8
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub fn nand(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `not`
[INFO] [stdout]    --> src/logic.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | pub fn not(a: Bit) -> Bit {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `and`
[INFO] [stdout]    --> src/logic.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub fn and(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `or`
[INFO] [stdout]    --> src/logic.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub fn or(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `xor`
[INFO] [stdout]    --> src/logic.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 | pub fn xor(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux`
[INFO] [stdout]    --> src/logic.rs:164:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | pub fn mux(a: Bit, b: Bit, sel: Bit) -> Bit {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dmux`
[INFO] [stdout]    --> src/logic.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub fn dmux(inc: Bit, sel: Bit) -> [Bit; 2] {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `not16`
[INFO] [stdout]    --> src/logic.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn not16(a: Word) -> Word {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `and16`
[INFO] [stdout]    --> src/logic.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub fn and16(a: Word, b: Word) -> Word {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `or16`
[INFO] [stdout]    --> src/logic.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 | pub fn or16(a: Word, b: Word) -> Word {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux16`
[INFO] [stdout]    --> src/logic.rs:235:8
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub fn mux16(a: Word, b: Word, sel: Bit) -> Word {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `or8way`
[INFO] [stdout]    --> src/logic.rs:256:8
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub fn or8way(a: [Bit; 8]) -> Bit {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux4way16`
[INFO] [stdout]    --> src/logic.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn mux4way16(a: Word, b: Word, c: Word, d: Word, sel: [Bit; 2]) -> Word {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mux8way16`
[INFO] [stdout]    --> src/logic.rs:287:8
[INFO] [stdout]     |
[INFO] [stdout] 287 | pub fn mux8way16(
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dmux4way`
[INFO] [stdout]    --> src/logic.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout] 369 | pub fn dmux4way(inc: Bit, sel: [Bit; 2]) -> [Bit; 4] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dmux8way`
[INFO] [stdout]    --> src/logic.rs:378:8
[INFO] [stdout]     |
[INFO] [stdout] 378 | pub fn dmux8way(inc: Bit, sel: [Bit; 3]) -> [Bit; 8] {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/logic.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |             panic!(format!("index fail: {} is out of range.", index));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/logic.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |             panic!(format!("index_mut fail: {}, out of range.", index));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_slice`
[INFO] [stdout]   --> src/logic.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn to_slice(&self) -> [Bit; 16] {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/logic.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |             panic!(format!("index fail: {} is out of range.", index));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/logic.rs:79:20
[INFO] [stdout]    |
[INFO] [stdout] 79 |             panic!(format!("index_mut fail: {}, out of range.", index));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "650e82b38477303cedb352fd598743ad95e1d9e022336920695169a9c6188e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "650e82b38477303cedb352fd598743ad95e1d9e022336920695169a9c6188e70", kill_on_drop: false }`
[INFO] [stdout] 650e82b38477303cedb352fd598743ad95e1d9e022336920695169a9c6188e70