[INFO] cloning repository https://github.com/grigoryk/toy8080
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grigoryk/toy8080" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrigoryk%2Ftoy8080", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrigoryk%2Ftoy8080'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a304ce88d9bc97a3f5ff93908784dc73ac4f2c9a
[INFO] checking grigoryk/toy8080 against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrigoryk%2Ftoy8080" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grigoryk/toy8080 on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grigoryk/toy8080
[INFO] finished tweaking git repo https://github.com/grigoryk/toy8080
[INFO] tweaked toml for git repo https://github.com/grigoryk/toy8080 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/grigoryk/toy8080 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e56da0c02847bc714c971e674faefc0000a1d6936eb9bf5de2fe15eee3e407b3
[INFO] running `Command { std: "docker" "start" "-a" "e56da0c02847bc714c971e674faefc0000a1d6936eb9bf5de2fe15eee3e407b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e56da0c02847bc714c971e674faefc0000a1d6936eb9bf5de2fe15eee3e407b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56da0c02847bc714c971e674faefc0000a1d6936eb9bf5de2fe15eee3e407b3", kill_on_drop: false }`
[INFO] [stdout] e56da0c02847bc714c971e674faefc0000a1d6936eb9bf5de2fe15eee3e407b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10fb0becd2d330dfb9f6ca06f8234f078f4b80b89a704aa88707f8295b2f6247
[INFO] running `Command { std: "docker" "start" "-a" "10fb0becd2d330dfb9f6ca06f8234f078f4b80b89a704aa88707f8295b2f6247", kill_on_drop: false }`
[INFO] [stderr]     Checking toy8080 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Register` is never used
[INFO] [stdout]  --> src/state.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Register {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `s`, `z`, `p`, `c`, and `ac` are never read
[INFO] [stdout]   --> src/state.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Flags {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 12 |     pub s: bool, // sign
[INFO] [stdout]    |         ^
[INFO] [stdout] 13 |     pub z: bool, // zero
[INFO] [stdout]    |         ^
[INFO] [stdout] 14 |     pub p: bool, // parity
[INFO] [stdout]    |         ^
[INFO] [stdout] 15 |     pub c: bool, // carry
[INFO] [stdout]    |         ^
[INFO] [stdout] 16 |     pub ac: bool // aux carry
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> src/state.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Registers {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub a: u8, // accumulator
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/state.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct State {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub flags: Flags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/instructions.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Push(RegisterPair),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Push(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Di` and `Unused` are never constructed
[INFO] [stdout]   --> src/instructions.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Cmd {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 98 |     Di, // special
[INFO] [stdout]    |     ^^
[INFO] [stdout] 99 |     Unused, // ???
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Register` is never used
[INFO] [stdout]  --> src/state.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Register {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Register` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `s`, `z`, `p`, `c`, and `ac` are never read
[INFO] [stdout]   --> src/state.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Flags {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 12 |     pub s: bool, // sign
[INFO] [stdout]    |         ^
[INFO] [stdout] 13 |     pub z: bool, // zero
[INFO] [stdout]    |         ^
[INFO] [stdout] 14 |     pub p: bool, // parity
[INFO] [stdout]    |         ^
[INFO] [stdout] 15 |     pub c: bool, // carry
[INFO] [stdout]    |         ^
[INFO] [stdout] 16 |     pub ac: bool // aux carry
[INFO] [stdout]    |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> src/state.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct Registers {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub a: u8, // accumulator
[INFO] [stdout]    |         ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]   --> src/state.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct State {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub flags: Flags,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/instructions.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Push(RegisterPair),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Push(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Di` and `Unused` are never constructed
[INFO] [stdout]   --> src/instructions.rs:98:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub enum Cmd {
[INFO] [stdout]    |          --- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 98 |     Di, // special
[INFO] [stdout]    |     ^^
[INFO] [stdout] 99 |     Unused, // ???
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cmd` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "10fb0becd2d330dfb9f6ca06f8234f078f4b80b89a704aa88707f8295b2f6247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fb0becd2d330dfb9f6ca06f8234f078f4b80b89a704aa88707f8295b2f6247", kill_on_drop: false }`
[INFO] [stdout] 10fb0becd2d330dfb9f6ca06f8234f078f4b80b89a704aa88707f8295b2f6247
