[INFO] cloning repository https://github.com/AndreiKazakov/rust-16-bit-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndreiKazakov/rust-16-bit-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Frust-16-bit-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Frust-16-bit-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b74f3578bc5c2dcd8467400ad7628f2001ba2f64
[INFO] checking AndreiKazakov/rust-16-bit-vm against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreiKazakov%2Frust-16-bit-vm" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AndreiKazakov/rust-16-bit-vm
[INFO] finished tweaking git repo https://github.com/AndreiKazakov/rust-16-bit-vm
[INFO] tweaked toml for git repo https://github.com/AndreiKazakov/rust-16-bit-vm written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AndreiKazakov/rust-16-bit-vm on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AndreiKazakov/rust-16-bit-vm 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5679b214ecb23e43b718feec827515c5ff78e54849763afad9d0abe5b13e6106
[INFO] running `Command { std: "docker" "start" "-a" "5679b214ecb23e43b718feec827515c5ff78e54849763afad9d0abe5b13e6106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5679b214ecb23e43b718feec827515c5ff78e54849763afad9d0abe5b13e6106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5679b214ecb23e43b718feec827515c5ff78e54849763afad9d0abe5b13e6106", kill_on_drop: false }`
[INFO] [stdout] 5679b214ecb23e43b718feec827515c5ff78e54849763afad9d0abe5b13e6106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b31c9c2d1b74a16c21848fcd3570be0798b61d1585ae303915f86bcb0ebcf61
[INFO] running `Command { std: "docker" "start" "-a" "7b31c9c2d1b74a16c21848fcd3570be0798b61d1585ae303915f86bcb0ebcf61", kill_on_drop: false }`
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `hex8_or_exp` is never used
[INFO] [stdout]   --> src/assembler/formats.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn hex8_or_exp<'a>() -> Parser<'a, str, Type> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hex_literal8` is never used
[INFO] [stdout]   --> src/assembler/parser.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn hex_literal8<'a>() -> Parser<'a, str, Type> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `HexLiteral8` is never constructed
[INFO] [stdout]    --> src/assembler/parser.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub enum Type {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 204 |     HexLiteral8(u8),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_literal` is never used
[INFO] [stdout]  --> src/parser_combinator/byte.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn match_literal(expected: &[u8]) -> Parser<[u8], ()> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `map_err`, `sequence_of`, and `between` are never used
[INFO] [stdout]    --> src/parser_combinator/core.rs:78:12
[INFO] [stdout]     |
[INFO] [stdout] 39  | impl<'a, I: ?Sized + ParseInput, O> Parser<'a, I, O> {
[INFO] [stdout]     | ---------------------------------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 78  |     pub fn map_err<F>(self, err_map_fn: F) -> Parser<'a, I, O>
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn sequence_of(parsers: Vec<Parser<I, O>>) -> Parser<I, Vec<O>> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     pub fn between<B, A>(
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `upper_or_lower` is never used
[INFO] [stdout]   --> src/parser_combinator/string.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn upper_or_lower<'a>(s: String) -> Parser<'a, str, String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/parser_combinator/byte.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn match_literal(expected: &[u8]) -> Parser<[u8], ()> {
[INFO] [stdout]   |                            ^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn match_literal(expected: &[u8]) -> Parser<'_, [u8], ()> {
[INFO] [stdout]   |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hex8_or_exp` is never used
[INFO] [stdout]   --> src/assembler/formats.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn hex8_or_exp<'a>() -> Parser<'a, str, Type> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hex_literal8` is never used
[INFO] [stdout]   --> src/assembler/parser.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn hex_literal8<'a>() -> Parser<'a, str, Type> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `HexLiteral8` is never constructed
[INFO] [stdout]    --> src/assembler/parser.rs:204:5
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub enum Type {
[INFO] [stdout]     |          ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 204 |     HexLiteral8(u8),
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `view_memory_at` is never used
[INFO] [stdout]    --> src/cpu.rs:448:8
[INFO] [stdout]     |
[INFO] [stdout] 448 |     fn view_memory_at(mem: Memory, address: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/assembler.rs:315:55
[INFO] [stdout]     |
[INFO] [stdout] 315 |             assert!(super::mov().parse(line).is_ok(), line)
[INFO] [stdout]     |                                                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 315 |             assert!(super::mov().parse(line).is_ok(), "{}", line)
[INFO] [stdout]     |                                                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]  --> src/parser_combinator/byte.rs:3:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn match_literal(expected: &[u8]) -> Parser<[u8], ()> {
[INFO] [stdout]   |                            ^^^^^     ---------------- the lifetime gets resolved as `'_`
[INFO] [stdout]   |                            |
[INFO] [stdout]   |                            this lifetime flows to the output
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn match_literal(expected: &[u8]) -> Parser<'_, [u8], ()> {
[INFO] [stdout]   |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "7b31c9c2d1b74a16c21848fcd3570be0798b61d1585ae303915f86bcb0ebcf61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b31c9c2d1b74a16c21848fcd3570be0798b61d1585ae303915f86bcb0ebcf61", kill_on_drop: false }`
[INFO] [stdout] 7b31c9c2d1b74a16c21848fcd3570be0798b61d1585ae303915f86bcb0ebcf61
