[INFO] updating cached repository https://github.com/danellis/webarc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd029ae5ecb66eeae1d3e6d4aaf5071d0bbb9d58
[INFO] checking danellis/webarc against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanellis%2Fwebarc" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danellis/webarc on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/danellis/webarc
[INFO] finished tweaking git repo https://github.com/danellis/webarc
[INFO] tweaked toml for git repo https://github.com/danellis/webarc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/danellis/webarc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f9a4fe7240183402b002176ab98bd41815fea98a2fd16931f0ec0dfd285e2ec
[INFO] running `"docker" "start" "-a" "4f9a4fe7240183402b002176ab98bd41815fea98a2fd16931f0ec0dfd285e2ec"`
[INFO] [stderr]     Checking webarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::ops::Shr`
[INFO] [stderr]  --> src/webarc/instructions.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Shr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Shr`
[INFO] [stderr]  --> src/webarc/instructions.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Shr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/webarc/instructions.rs:28:46
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn exec_branch(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:123:15
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn format_alu(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/webarc/instructions.rs:165:47
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn exec_alu_add(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rd`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:78
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                              ^^ help: if this is intentional, prefix it with an underscore: `_rd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op1`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:87
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_op1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op2`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:97
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_op2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:229:19
[INFO] [stderr]     |
[INFO] [stderr] 229 | fn format_ldr_str(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `registers`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:23
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:53
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:74
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:287:25
[INFO] [stderr]     |
[INFO] [stderr] 287 | fn format_unimplemented(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/webarc/instructions.rs:287:51
[INFO] [stderr]     |
[INFO] [stderr] 287 | fn format_unimplemented(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]   --> src/webarc/instructions.rs:28:46
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn exec_branch(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UNDEFINED_INSTRUCTION_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const UNDEFINED_INSTRUCTION_VECTOR: u32 = 0x04;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:123:15
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn format_alu(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |               ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/webarc/instructions.rs:165:47
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn exec_alu_add(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                               ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rd`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:78
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                              ^^ help: if this is intentional, prefix it with an underscore: `_rd`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op1`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:87
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                                       ^^^ help: if this is intentional, prefix it with an underscore: `_op1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `op2`
[INFO] [stderr]    --> src/webarc/instructions.rs:170:97
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn exec_alu_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, rd: u32, op1: u32, op2: u32) -> Action {
[INFO] [stderr]     |                                                                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_op2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:229:19
[INFO] [stderr]     |
[INFO] [stderr] 229 | fn format_ldr_str(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `registers`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:23
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_registers`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `memory`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:53
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_memory`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/webarc/instructions.rs:283:74
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn exec_unimplemented(registers: &mut RegisterFile, memory: &mut Memory, instruction: u32) -> Action {
[INFO] [stderr]     |                                                                          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `address`
[INFO] [stderr]    --> src/webarc/instructions.rs:287:25
[INFO] [stderr]     |
[INFO] [stderr] 287 | fn format_unimplemented(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_address`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `instruction`
[INFO] [stderr]    --> src/webarc/instructions.rs:287:51
[INFO] [stderr]     |
[INFO] [stderr] 287 | fn format_unimplemented(address: u32, cond: &str, instruction: u32) -> String {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_instruction`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `UNDEFINED_INSTRUCTION_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | const UNDEFINED_INSTRUCTION_VECTOR: u32 = 0x04;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SWI_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SWI_VECTOR: u32 = 0x08;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PREFETCH_ABORT_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const PREFETCH_ABORT_VECTOR: u32 = 0x0c;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DATA_ABORT_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const DATA_ABORT_VECTOR: u32 = 0x10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ADDRESS_EXCEPTION_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ADDRESS_EXCEPTION_VECTOR: u32 = 0x14;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IRQ_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const IRQ_VECTOR: u32 = 0x18;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FIRQ_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FIRQ_VECTOR: u32 = 0x1c;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     f.read(as_u8_slice(&mut rom));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SWI_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | const SWI_VECTOR: u32 = 0x08;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PREFETCH_ABORT_VECTOR`
[INFO] [stderr]  --> src/webarc/cpu.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const PREFETCH_ABORT_VECTOR: u32 = 0x0c;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `DATA_ABORT_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const DATA_ABORT_VECTOR: u32 = 0x10;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ADDRESS_EXCEPTION_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const ADDRESS_EXCEPTION_VECTOR: u32 = 0x14;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `IRQ_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | const IRQ_VECTOR: u32 = 0x18;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `FIRQ_VECTOR`
[INFO] [stderr]   --> src/webarc/cpu.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | const FIRQ_VECTOR: u32 = 0x1c;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     f.read(as_u8_slice(&mut rom));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `"docker" "inspect" "4f9a4fe7240183402b002176ab98bd41815fea98a2fd16931f0ec0dfd285e2ec"`
[INFO] running `"docker" "rm" "-f" "4f9a4fe7240183402b002176ab98bd41815fea98a2fd16931f0ec0dfd285e2ec"`
[INFO] [stdout] 4f9a4fe7240183402b002176ab98bd41815fea98a2fd16931f0ec0dfd285e2ec