[INFO] cloning repository https://github.com/danellis/webarc-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danellis/webarc-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanellis%2Fwebarc-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanellis%2Fwebarc-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b3058bec5d11c0552d3f76da84205d588916a24
[INFO] checking danellis/webarc-rust against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanellis%2Fwebarc-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danellis/webarc-rust on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danellis/webarc-rust
[INFO] finished tweaking git repo https://github.com/danellis/webarc-rust
[INFO] tweaked toml for git repo https://github.com/danellis/webarc-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/danellis/webarc-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 624555e1569b6455b46dbbbeb4e0b16cb804cd6cda95f0b50971da1d5d9d0bf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "624555e1569b6455b46dbbbeb4e0b16cb804cd6cda95f0b50971da1d5d9d0bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "624555e1569b6455b46dbbbeb4e0b16cb804cd6cda95f0b50971da1d5d9d0bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624555e1569b6455b46dbbbeb4e0b16cb804cd6cda95f0b50971da1d5d9d0bf4", kill_on_drop: false }`
[INFO] [stdout] 624555e1569b6455b46dbbbeb4e0b16cb804cd6cda95f0b50971da1d5d9d0bf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54aaa3fd5cd435881e461ae4a8d6b6d1f13f3f76ce2ccb8d8d05ba23ec558b1b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "54aaa3fd5cd435881e461ae4a8d6b6d1f13f3f76ce2ccb8d8d05ba23ec558b1b", kill_on_drop: false }`
[INFO] [stderr]     Checking webarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/webarc/cpu.rs:115:107
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn log_instruction(&self, fetch_address: u32, fetched_word: u32, cond: u8, maybe_instruction: Option<&Instruction>) {
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Instruction`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/webarc/instructions.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn decode(&self, word: u32) -> Option<&Instruction> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: use `dyn`: `dyn Instruction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]   --> src/webarc/instructions.rs:40:49
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn exec(&self,registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) {
[INFO] [stdout]    |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/webarc/cpu.rs:115:107
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn log_instruction(&self, fetch_address: u32, fetched_word: u32, cond: u8, maybe_instruction: Option<&Instruction>) {
[INFO] [stdout]     |                                                                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Instruction`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/webarc/instructions.rs:25:48
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn decode(&self, word: u32) -> Option<&Instruction> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^ help: use `dyn`: `dyn Instruction`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNDEFINED_INSTRUCTION_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const UNDEFINED_INSTRUCTION_VECTOR: u32 = 0x04;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SWI_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SWI_VECTOR: u32 = 0x08;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PREFETCH_ABORT_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const PREFETCH_ABORT_VECTOR: u32 = 0x0c;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DATA_ABORT_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DATA_ABORT_VECTOR: u32 = 0x10;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ADDRESS_EXCEPTION_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ADDRESS_EXCEPTION_VECTOR: u32 = 0x14;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IRQ_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const IRQ_VECTOR: u32 = 0x18;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIRQ_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const FIRQ_VECTOR: u32 = 0x1c;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store`
[INFO] [stdout]   --> src/webarc/memory.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn store(&self, _address: u32, _data: u32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_byte`
[INFO] [stdout]   --> src/webarc/memory.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn load_byte(&mut self, address: u32) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_byte`
[INFO] [stdout]   --> src/webarc/memory.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn store_byte(&mut self, address: u32, data: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `memory`
[INFO] [stdout]   --> src/webarc/instructions.rs:40:49
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn exec(&self,registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) {
[INFO] [stdout]    |                                                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `UNDEFINED_INSTRUCTION_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | const UNDEFINED_INSTRUCTION_VECTOR: u32 = 0x04;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SWI_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | const SWI_VECTOR: u32 = 0x08;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PREFETCH_ABORT_VECTOR`
[INFO] [stdout]  --> src/webarc/cpu.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | const PREFETCH_ABORT_VECTOR: u32 = 0x0c;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DATA_ABORT_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | const DATA_ABORT_VECTOR: u32 = 0x10;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ADDRESS_EXCEPTION_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | const ADDRESS_EXCEPTION_VECTOR: u32 = 0x14;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `IRQ_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | const IRQ_VECTOR: u32 = 0x18;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIRQ_VECTOR`
[INFO] [stdout]   --> src/webarc/cpu.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | const FIRQ_VECTOR: u32 = 0x1c;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store`
[INFO] [stdout]   --> src/webarc/memory.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn store(&self, _address: u32, _data: u32) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `load_byte`
[INFO] [stdout]   --> src/webarc/memory.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn load_byte(&mut self, address: u32) -> u8 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `store_byte`
[INFO] [stdout]   --> src/webarc/memory.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn store_byte(&mut self, address: u32, data: u8) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     f.read(as_u8_slice(&mut rom));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     f.read(as_u8_slice(&mut rom));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "54aaa3fd5cd435881e461ae4a8d6b6d1f13f3f76ce2ccb8d8d05ba23ec558b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54aaa3fd5cd435881e461ae4a8d6b6d1f13f3f76ce2ccb8d8d05ba23ec558b1b", kill_on_drop: false }`
[INFO] [stdout] 54aaa3fd5cd435881e461ae4a8d6b6d1f13f3f76ce2ccb8d8d05ba23ec558b1b