[INFO] fetching crate chip_8 0.3.1...
[INFO] checking chip_8-0.3.1 against master#f25e92bd42b14e45440c0a30a4ed751ea502f430 for pr-127481
[INFO] extracting crate chip_8 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate chip_8 0.3.1 on toolchain f25e92bd42b14e45440c0a30a4ed751ea502f430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chip_8 0.3.1
[INFO] finished tweaking crates.io crate chip_8 0.3.1
[INFO] tweaked toml for crates.io crate chip_8 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding bit-set v0.5.3 (latest: v0.6.0)
[INFO] [stderr]       Adding bit-vec v0.6.3 (latest: v0.7.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.15)
[INFO] [stderr]       Adding idna v0.5.0 (latest: v1.0.2)
[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (latest: v0.6.4)
[INFO] [stderr]       Adding proptest v0.10.1 (latest: v1.5.0)
[INFO] [stderr]       Adding pulldown-cmark v0.9.6 (latest: v0.11.0)
[INFO] [stderr]       Adding quick-error v1.2.3 (latest: v2.0.1)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rand_xorshift v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.4)
[INFO] [stderr]       Adding toml v0.7.8 (latest: v0.8.14)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.15)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.13)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded proptest v0.10.1
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 855a47929981f02cacff90e1a80305f38d8ef2cc947261f3da9b8b352e3c0d60
[INFO] running `Command { std: "docker" "start" "-a" "855a47929981f02cacff90e1a80305f38d8ef2cc947261f3da9b8b352e3c0d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "855a47929981f02cacff90e1a80305f38d8ef2cc947261f3da9b8b352e3c0d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "855a47929981f02cacff90e1a80305f38d8ef2cc947261f3da9b8b352e3c0d60", kill_on_drop: false }`
[INFO] [stdout] 855a47929981f02cacff90e1a80305f38d8ef2cc947261f3da9b8b352e3c0d60
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f25e92bd42b14e45440c0a30a4ed751ea502f430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1c5f397c20bd6f5fc9f7bba38187975fbc6b149f6caaeff2d80b58801af8167
[INFO] running `Command { std: "docker" "start" "-a" "d1c5f397c20bd6f5fc9f7bba38187975fbc6b149f6caaeff2d80b58801af8167", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking syn v2.0.70
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking tempfile v3.10.1
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]     Checking serde_spanned v0.6.6
[INFO] [stderr]     Checking toml_datetime v0.6.6
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking chip_8 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `i` and `pc` are never read
[INFO] [stdout]   --> src/vm.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct Registers {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 29 |     vregisters: [VRegisterValue; 16], // TODO: Use variant_count for constant?
[INFO] [stdout] 30 |     i: IRegisterValue,
[INFO] [stdout]    |     ^
[INFO] [stdout] 31 |     pc: PCRegisterValue,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Registers` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `registers`, `rng`, `sys_fn`, `keypad`, `waiting_on_any_keypress`, and `display` are never read
[INFO] [stdout]   --> src/vm.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct VM<R: Rng> {
[INFO] [stdout]    |            -- fields in this struct
[INFO] [stdout] 71 |     registers: Registers,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 72 |     rng: R,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 73 |     sys_fn: fn(&mut Self, crate::instructions::Addr) -> crate::errors::Result<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 74 |     keypad: crate::keypad::Keypad,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 75 |     waiting_on_any_keypress: Option<VRegister>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 76 |     memory: Memory,
[INFO] [stdout] 77 |     display: Display,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `execute_instruction` is never used
[INFO] [stdout]    --> src/vm.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 94  | / impl<R> VM<R>
[INFO] [stdout] 95  | | where
[INFO] [stdout] 96  | |     R: rand::Rng,
[INFO] [stdout]     | |_________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 123 |       fn execute_instruction(&mut self, instruction: &Instruction) -> crate::errors::Result<()> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "d1c5f397c20bd6f5fc9f7bba38187975fbc6b149f6caaeff2d80b58801af8167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c5f397c20bd6f5fc9f7bba38187975fbc6b149f6caaeff2d80b58801af8167", kill_on_drop: false }`
[INFO] [stdout] d1c5f397c20bd6f5fc9f7bba38187975fbc6b149f6caaeff2d80b58801af8167
[ERROR] this task or one of its parent failed!
[ERROR] error sending request for url (https://crater.rust-lang.org/agent-api/record-progress): connection closed before message completed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.