[INFO] cloning repository https://github.com/lazmond3/rust-nand2tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lazmond3/rust-nand2tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazmond3%2Frust-nand2tetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazmond3%2Frust-nand2tetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76b17b4665722036c42d9fa493705c3c7037b1ac
[INFO] checking lazmond3/rust-nand2tetris against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flazmond3%2Frust-nand2tetris" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lazmond3/rust-nand2tetris on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lazmond3/rust-nand2tetris
[INFO] finished tweaking git repo https://github.com/lazmond3/rust-nand2tetris
[INFO] tweaked toml for git repo https://github.com/lazmond3/rust-nand2tetris written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lazmond3/rust-nand2tetris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15a2f8bfdf52756b62fcca06d8fbe7c9ec8d30c4f07243f42e18249b5db3b578
[INFO] running `Command { std: "docker" "start" "-a" "15a2f8bfdf52756b62fcca06d8fbe7c9ec8d30c4f07243f42e18249b5db3b578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15a2f8bfdf52756b62fcca06d8fbe7c9ec8d30c4f07243f42e18249b5db3b578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15a2f8bfdf52756b62fcca06d8fbe7c9ec8d30c4f07243f42e18249b5db3b578", kill_on_drop: false }`
[INFO] [stdout] 15a2f8bfdf52756b62fcca06d8fbe7c9ec8d30c4f07243f42e18249b5db3b578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b56a39d96cbcbbbdad00e050f6daf27754c08dffc810833ce9147ea9dcf2b2
[INFO] running `Command { std: "docker" "start" "-a" "b6b56a39d96cbcbbbdad00e050f6daf27754c08dffc810833ce9147ea9dcf2b2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking nand2tetris v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/ram.rs (6 fixes)
[INFO] [stderr]        Fixed src/word.rs (9 fixes)
[INFO] [stderr]        Fixed src/dff.rs (1 fix)
[INFO] [stderr]        Fixed src/rom.rs (4 fixes)
[INFO] [stderr]        Fixed src/keyboard.rs (3 fixes)
[INFO] [stdout] warning: function is never used: `and`
[INFO] [stdout]  --> src/and.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn and(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `and_word`
[INFO] [stdout]   --> src/and.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn and_word(a: Word, b: Word) -> Word {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state_past`
[INFO] [stdout]  --> src/dff.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     state_past: Bit,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state_next`
[INFO] [stdout]  --> src/dff.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     state_next: Bit,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dff.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `input`
[INFO] [stdout]   --> src/dff.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn input(&mut self, a: Bit, clock: &Clock) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say`
[INFO] [stdout]   --> src/ownership_test.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn say(u: usize) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_fancy`
[INFO] [stdout]   --> src/ownership_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn say_fancy(u: FancyBox) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_mut_fancy`
[INFO] [stdout]   --> src/ownership_test.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn say_mut_fancy(u: &FancyBox) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rom`
[INFO] [stdout]  --> src/rom.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Rom {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rom.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easy_add`
[INFO] [stdout]    --> src/word.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn easy_add(one: Word, other: Word) -> Word {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `word`
[INFO] [stdout]  --> src/keyboard.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     word: Word,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matching`
[INFO] [stdout]   --> src/keyboard.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn matching(line: String) -> Option<Word> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/rom.rs (1 fix)
[INFO] [stderr]        Fixed src/word.rs (2 fixes)
[INFO] [stdout] warning: struct is never constructed: `Rom`
[INFO] [stdout]  --> src/rom.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Rom {
[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: `new`
[INFO] [stdout]   --> src/rom.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easy_add`
[INFO] [stdout]    --> src/word.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn easy_add(one: Word, other: Word) -> Word {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `word`
[INFO] [stdout]  --> src/keyboard.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     word: Word,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking nand2tetris v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `and`
[INFO] [stdout]  --> src/and.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn and(a: Bit, b: Bit) -> Bit {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `and_word`
[INFO] [stdout]   --> src/and.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn and_word(a: Word, b: Word) -> Word {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state_past`
[INFO] [stdout]  --> src/dff.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     state_past: Bit,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state_next`
[INFO] [stdout]  --> src/dff.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     state_next: Bit,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dff.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `input`
[INFO] [stdout]   --> src/dff.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn input(&mut self, a: Bit, clock: &Clock) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say`
[INFO] [stdout]   --> src/ownership_test.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn say(u: usize) {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_fancy`
[INFO] [stdout]   --> src/ownership_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn say_fancy(u: FancyBox) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `say_mut_fancy`
[INFO] [stdout]   --> src/ownership_test.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn say_mut_fancy(u: &FancyBox) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rom`
[INFO] [stdout]  --> src/rom.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Rom {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rom.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easy_add`
[INFO] [stdout]    --> src/word.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn easy_add(one: Word, other: Word) -> Word {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `word`
[INFO] [stdout]  --> src/keyboard.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     word: Word,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `matching`
[INFO] [stdout]   --> src/keyboard.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn matching(line: String) -> Option<Word> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Rom`
[INFO] [stdout]  --> src/rom.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Rom {
[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: `new`
[INFO] [stdout]   --> src/rom.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easy_add`
[INFO] [stdout]    --> src/word.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn easy_add(one: Word, other: Word) -> Word {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `word`
[INFO] [stdout]  --> src/keyboard.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     word: Word,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "b6b56a39d96cbcbbbdad00e050f6daf27754c08dffc810833ce9147ea9dcf2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b56a39d96cbcbbbdad00e050f6daf27754c08dffc810833ce9147ea9dcf2b2", kill_on_drop: false }`
[INFO] [stdout] b6b56a39d96cbcbbbdad00e050f6daf27754c08dffc810833ce9147ea9dcf2b2