[INFO] cloning repository https://github.com/aleb2000/RustyBoy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aleb2000/RustyBoy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleb2000%2FRustyBoy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleb2000%2FRustyBoy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05ee2476b7f6b8e7301ba0abff75fdc29a6ff5a4
[INFO] checking aleb2000/RustyBoy against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleb2000%2FRustyBoy" "/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/aleb2000/RustyBoy
[INFO] finished tweaking git repo https://github.com/aleb2000/RustyBoy
[INFO] tweaked toml for git repo https://github.com/aleb2000/RustyBoy written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aleb2000/RustyBoy on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aleb2000/RustyBoy 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a494820caa622ec49977b0bb797a05d8a8115111929891f51d19fa89b5ad4d28
[INFO] running `Command { std: "docker" "start" "-a" "a494820caa622ec49977b0bb797a05d8a8115111929891f51d19fa89b5ad4d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a494820caa622ec49977b0bb797a05d8a8115111929891f51d19fa89b5ad4d28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a494820caa622ec49977b0bb797a05d8a8115111929891f51d19fa89b5ad4d28", kill_on_drop: false }`
[INFO] [stdout] a494820caa622ec49977b0bb797a05d8a8115111929891f51d19fa89b5ad4d28
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 631a91e4547a9fcb5a89faa770c77bb874f149b8aeb5213772982d08cd5c3aac
[INFO] running `Command { std: "docker" "start" "-a" "631a91e4547a9fcb5a89faa770c77bb874f149b8aeb5213772982d08cd5c3aac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]     Checking clap v3.1.12
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]     Checking num_enum v0.5.7
[INFO] [stderr]     Checking bytesize v1.1.0
[INFO] [stderr]     Checking emu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `TOpcode` is never used
[INFO] [stdout]  --> src/opcode.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait TOpcode {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_NAMES` is never used
[INFO] [stdout]    --> src/opcode.rs:603:7
[INFO] [stdout]     |
[INFO] [stdout] 603 | const OPCODE_NAMES: &'static [&'static str] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_SIZES` is never used
[INFO] [stdout]    --> src/opcode.rs:645:7
[INFO] [stdout]     |
[INFO] [stdout] 645 | const OPCODE_SIZES: [usize; 512] = [
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NINTENDO_LOGO` is never used
[INFO] [stdout]  --> src/cartridge.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const NINTENDO_LOGO: [u8; 48] = [
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `entry`, `logo`, `header_checksum`, `global_checksum`, and `data` are never read
[INFO] [stdout]   --> src/cartridge.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Cartridge {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     entry: [u8; 4], 
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     logo: [u8; 48],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     header_checksum: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     global_checksum: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |
[INFO] [stdout] 30 |     data: Vec<u8>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     file: String
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TOpcode` is never used
[INFO] [stdout]  --> src/opcode.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait TOpcode {
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_NAMES` is never used
[INFO] [stdout]    --> src/opcode.rs:603:7
[INFO] [stdout]     |
[INFO] [stdout] 603 | const OPCODE_NAMES: &'static [&'static str] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OPCODE_SIZES` is never used
[INFO] [stdout]    --> src/opcode.rs:645:7
[INFO] [stdout]     |
[INFO] [stdout] 645 | const OPCODE_SIZES: [usize; 512] = [
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NINTENDO_LOGO` is never used
[INFO] [stdout]  --> src/cartridge.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const NINTENDO_LOGO: [u8; 48] = [
[INFO] [stdout]   |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `entry`, `logo`, `header_checksum`, `global_checksum`, and `data` are never read
[INFO] [stdout]   --> src/cartridge.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Cartridge {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     entry: [u8; 4], 
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     logo: [u8; 48],
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     header_checksum: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     global_checksum: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 29 |
[INFO] [stdout] 30 |     data: Vec<u8>
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `emu` (bin "emu" test) due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     file: String
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `emu` (bin "emu") due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "631a91e4547a9fcb5a89faa770c77bb874f149b8aeb5213772982d08cd5c3aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "631a91e4547a9fcb5a89faa770c77bb874f149b8aeb5213772982d08cd5c3aac", kill_on_drop: false }`
[INFO] [stdout] 631a91e4547a9fcb5a89faa770c77bb874f149b8aeb5213772982d08cd5c3aac
