[INFO] cloning repository https://github.com/quirinux/rust-chip-8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quirinux/rust-chip-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-chip-8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-chip-8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8aa195f586b6b582ed79d9bbf9925a67923b3a1
[INFO] checking quirinux/rust-chip-8 against try#09eeb2bacb9b40b2ed1d47f03177442c0632cda1 for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquirinux%2Frust-chip-8" "/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/quirinux/rust-chip-8
[INFO] finished tweaking git repo https://github.com/quirinux/rust-chip-8
[INFO] tweaked toml for git repo https://github.com/quirinux/rust-chip-8 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quirinux/rust-chip-8 on toolchain 09eeb2bacb9b40b2ed1d47f03177442c0632cda1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quirinux/rust-chip-8 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" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8
[INFO] running `Command { std: "docker" "start" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8" "/opt/rustwide/cargo-home/bin/cargo" "+09eeb2bacb9b40b2ed1d47f03177442c0632cda1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/chip8/optcodes.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     CLS(u16),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 65 -     CLS(u16),
[INFO] [stdout] 65 +     CLS(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/chip8/optcodes.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     RET(u16),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptCode` has a derived impl for the trait `Debug`, but this is 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] 66 -     RET(u16),
[INFO] [stdout] 66 +     RET(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/chip8/optcodes.rs:81:5
[INFO] [stdout]     |
[INFO] [stdout]  63 | pub(crate) enum OptCode {
[INFO] [stdout]     |                 ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  81 |     SUBNVxVy(u16),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     JPV0Addr(u16),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     SCR(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 102 |     SCL(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 103 |     EXIT(u16),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 104 |     LOW(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 105 |     HIGH(u16),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 106 |     DRWVxVy(u16),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 107 |     LDHFVx(u16),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 108 |     LDRVx(u16),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 109 |     LVVxR(u16),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/chip8/optcodes.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     CLS(u16),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[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] 65 -     CLS(u16),
[INFO] [stdout] 65 +     CLS(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/chip8/optcodes.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |     RET(u16),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptCode` has a derived impl for the trait `Debug`, but this is 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] 66 -     RET(u16),
[INFO] [stdout] 66 +     RET(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]    --> src/chip8/optcodes.rs:81:5
[INFO] [stdout]     |
[INFO] [stdout]  63 | pub(crate) enum OptCode {
[INFO] [stdout]     |                 ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  81 |     SUBNVxVy(u16),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  85 |     JPV0Addr(u16),
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     SCR(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 102 |     SCL(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 103 |     EXIT(u16),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 104 |     LOW(u16),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 105 |     HIGH(u16),
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 106 |     DRWVxVy(u16),
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 107 |     LDHFVx(u16),
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 108 |     LDRVx(u16),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 109 |     LVVxR(u16),
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OptCode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.93s
[INFO] running `Command { std: "docker" "inspect" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8", kill_on_drop: false }`
[INFO] [stdout] 870dd64191aa080098c2f6cfb15c4c9107a78252f32cb4ce89dd6913ab56abb8
