[INFO] cloning repository https://github.com/codec-abc/synacor-challenge-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codec-abc/synacor-challenge-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodec-abc%2Fsynacor-challenge-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodec-abc%2Fsynacor-challenge-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8106355e9b1dc3a97f41e0c79ff83a12e31d792e
[INFO] checking codec-abc/synacor-challenge-rust against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodec-abc%2Fsynacor-challenge-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codec-abc/synacor-challenge-rust
[INFO] finished tweaking git repo https://github.com/codec-abc/synacor-challenge-rust
[INFO] tweaked toml for git repo https://github.com/codec-abc/synacor-challenge-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codec-abc/synacor-challenge-rust on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codec-abc/synacor-challenge-rust 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e713e02d62a664ebf96928a344350b628e69a89f62033acfae1e194f3c1e6ab
[INFO] running `Command { std: "docker" "start" "-a" "7e713e02d62a664ebf96928a344350b628e69a89f62033acfae1e194f3c1e6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e713e02d62a664ebf96928a344350b628e69a89f62033acfae1e194f3c1e6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e713e02d62a664ebf96928a344350b628e69a89f62033acfae1e194f3c1e6ab", kill_on_drop: false }`
[INFO] [stdout] 7e713e02d62a664ebf96928a344350b628e69a89f62033acfae1e194f3c1e6ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c900f49cea0140b82762ad296a25e9f3ed4c7273c0c206da162d93403afdf2e
[INFO] running `Command { std: "docker" "start" "-a" "2c900f49cea0140b82762ad296a25e9f3ed4c7273c0c206da162d93403afdf2e", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking num-traits v0.2.0
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking synacor_challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:231:51
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let register_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 231 -     let register_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 231 +     let register_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:232:48
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout] 232 +     let value_result = read_mem_as_u16_le(mem, offset + 2);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:256:48
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 256 -     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 256 +     let value_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:275:48
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 275 -     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 275 +     let value_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:294:47
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 294 -     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 294 +     let cell_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:295:56
[INFO] [stdout]     |
[INFO] [stdout] 295 |     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout]     |                                                        ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 295 -     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout] 295 +     let first_operand_result = read_mem_as_u16_le(mem, offset + 2);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:296:57
[INFO] [stdout]     |
[INFO] [stdout] 296 |     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stdout]     |                                                         ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 296 -     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stdout] 296 +     let second_operand_result = read_mem_as_u16_le(mem, offset + 3);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:231:51
[INFO] [stdout]     |
[INFO] [stdout] 231 |     let register_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                   ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 231 -     let register_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 231 +     let register_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:232:48
[INFO] [stdout]     |
[INFO] [stdout] 232 |     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 232 -     let value_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout] 232 +     let value_result = read_mem_as_u16_le(mem, offset + 2);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:256:48
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 256 -     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 256 +     let value_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:275:48
[INFO] [stdout]     |
[INFO] [stdout] 275 |     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                                ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 275 -     let value_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 275 +     let value_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:294:47
[INFO] [stdout]     |
[INFO] [stdout] 294 |     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout]     |                                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 294 -     let cell_result = read_mem_as_u16_le(mem, (offset + 1));
[INFO] [stdout] 294 +     let cell_result = read_mem_as_u16_le(mem, offset + 1);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:295:56
[INFO] [stdout]     |
[INFO] [stdout] 295 |     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout]     |                                                        ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 295 -     let first_operand_result = read_mem_as_u16_le(mem, (offset + 2));
[INFO] [stdout] 295 +     let first_operand_result = read_mem_as_u16_le(mem, offset + 2);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/opcode.rs:296:57
[INFO] [stdout]     |
[INFO] [stdout] 296 |     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stdout]     |                                                         ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 296 -     let second_operand_result = read_mem_as_u16_le(mem, (offset + 3));
[INFO] [stdout] 296 +     let second_operand_result = read_mem_as_u16_le(mem, offset + 3);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:626:25
[INFO] [stdout]     |
[INFO] [stdout] 626 |                     let mut f = File::create(dir.clone() + "registers.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:626:25
[INFO] [stdout]     |
[INFO] [stdout] 626 |                     let mut f = File::create(dir.clone() + "registers.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synacor_challenge` (bin "synacor_challenge"); 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/2b39fe756f52bc2825bf5b2bfc385cab922dae10/bin/rustc --crate-name synacor_challenge --edition=2015 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=a04c66b288e41bb3 -C extra-filename=-842cdd9acda05812 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-93dc8483ed0b64cc.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-83cd5f6e0ecc24db.rmeta --cap-lints=forbid` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:640:25
[INFO] [stdout]     |
[INFO] [stdout] 640 |                     let mut f = File::create(dir.clone() + "stack.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:654:25
[INFO] [stdout]     |
[INFO] [stdout] 654 |                     let mut f = File::create(dir.clone() + "program_counter.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:665:25
[INFO] [stdout]     |
[INFO] [stdout] 665 |                     let mut f = File::create(dir.clone() + "step_number.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm.rs:676:25
[INFO] [stdout]     |
[INFO] [stdout] 676 |                     let mut f = File::create(dir.clone() + "memory.txt");
[INFO] [stdout]     |                         ----^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 27 |                     let mut should_continue = true;
[INFO] [stdout]    |                         ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_invalid_number` is never used
[INFO] [stdout]    --> src/opcode.rs:838:12
[INFO] [stdout]     |
[INFO] [stdout] 818 | impl ParsedNumber
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 838 |     pub fn is_invalid_number(&self) -> bool
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/vm.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |     OpCodeParseFailure(opcode::ReadOpCodeFailure),
[INFO] [stdout]    |     ------------------ ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RunFailure` 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] 25 -     OpCodeParseFailure(opcode::ReadOpCodeFailure),
[INFO] [stdout] 25 +     OpCodeParseFailure(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c900f49cea0140b82762ad296a25e9f3ed4c7273c0c206da162d93403afdf2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c900f49cea0140b82762ad296a25e9f3ed4c7273c0c206da162d93403afdf2e", kill_on_drop: false }`
[INFO] [stdout] 2c900f49cea0140b82762ad296a25e9f3ed4c7273c0c206da162d93403afdf2e
