[INFO] cloning repository https://github.com/LevitatingBusinessMan/rasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LevitatingBusinessMan/rasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevitatingBusinessMan%2Frasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevitatingBusinessMan%2Frasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1545dfe49a9e4f0eafe82de41b99465402571604
[INFO] checking LevitatingBusinessMan/rasm against master#0ef0dd24510b52da980889546fcd15254dc56a23 for pr-126452
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevitatingBusinessMan%2Frasm" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LevitatingBusinessMan/rasm on toolchain 0ef0dd24510b52da980889546fcd15254dc56a23
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0ef0dd24510b52da980889546fcd15254dc56a23" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LevitatingBusinessMan/rasm
[INFO] finished tweaking git repo https://github.com/LevitatingBusinessMan/rasm
[INFO] tweaked toml for git repo https://github.com/LevitatingBusinessMan/rasm written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LevitatingBusinessMan/rasm 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" "+0ef0dd24510b52da980889546fcd15254dc56a23" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking LevitatingBusinessMan/rasm against try#d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9 for pr-126452
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLevitatingBusinessMan%2Frasm" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LevitatingBusinessMan/rasm on toolchain d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LevitatingBusinessMan/rasm
[INFO] finished tweaking git repo https://github.com/LevitatingBusinessMan/rasm
[INFO] tweaked toml for git repo https://github.com/LevitatingBusinessMan/rasm written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LevitatingBusinessMan/rasm 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" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0f7049b4e87a8505ffc061dd837e8f33595a68f260e41d2ea54aeca755c0a84
[INFO] running `Command { std: "docker" "start" "-a" "d0f7049b4e87a8505ffc061dd837e8f33595a68f260e41d2ea54aeca755c0a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0f7049b4e87a8505ffc061dd837e8f33595a68f260e41d2ea54aeca755c0a84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0f7049b4e87a8505ffc061dd837e8f33595a68f260e41d2ea54aeca755c0a84", kill_on_drop: false }`
[INFO] [stdout] d0f7049b4e87a8505ffc061dd837e8f33595a68f260e41d2ea54aeca755c0a84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+d9cbfeb054d7bd02cf942e6d32c1c0a91f042ce9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20c0eb709a34c00cc606b9db60c3a46015d8b8aa4a5e3ce3ae8aba5595e28a78
[INFO] running `Command { std: "docker" "start" "-a" "20c0eb709a34c00cc606b9db60c3a46015d8b8aa4a5e3ce3ae8aba5595e28a78", kill_on_drop: false }`
[INFO] [stderr]     Checking rasm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]  --> src/lexer/mod.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(source: String, backend: impl Backend) {
[INFO] [stdout]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `source`
[INFO] [stdout]  --> src/lexer/mod.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(source: String, backend: impl Backend) {
[INFO] [stdout]   |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_source`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `backend`
[INFO] [stdout]  --> src/lexer/mod.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(source: String, backend: impl Backend) {
[INFO] [stdout]   |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `backend`
[INFO] [stdout]  --> src/lexer/mod.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(source: String, backend: impl Backend) {
[INFO] [stdout]   |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_backend`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let tokens = lexer::lex(source, backends::x86::X86);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tokens`
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let tokens = lexer::lex(source, backends::x86::X86);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_tokens`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `registers` and `instruction` are never used
[INFO] [stdout]  --> src/backends/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Backend {
[INFO] [stdout]   |           ------- associated constants in this trait
[INFO] [stdout] 4 |     const registers: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 5 |     const instruction: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constants `registers` and `instruction` are never used
[INFO] [stdout]  --> src/backends/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Backend {
[INFO] [stdout]   |           ------- associated constants in this trait
[INFO] [stdout] 4 |     const registers: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout] 5 |     const instruction: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `registers` should have an upper case name
[INFO] [stdout]  --> src/backends/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     const registers: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^ help: convert the identifier to upper case: `REGISTERS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `registers` should have an upper case name
[INFO] [stdout]  --> src/backends/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     const registers: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^ help: convert the identifier to upper case: `REGISTERS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `instruction` should have an upper case name
[INFO] [stdout]  --> src/backends/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const instruction: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^^^ help: convert the identifier to upper case: `INSTRUCTION`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant `instruction` should have an upper case name
[INFO] [stdout]  --> src/backends/mod.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const instruction: &'static [&'static str];
[INFO] [stdout]   |           ^^^^^^^^^^^ help: convert the identifier to upper case: `INSTRUCTION`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "20c0eb709a34c00cc606b9db60c3a46015d8b8aa4a5e3ce3ae8aba5595e28a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c0eb709a34c00cc606b9db60c3a46015d8b8aa4a5e3ce3ae8aba5595e28a78", kill_on_drop: false }`
[INFO] [stdout] 20c0eb709a34c00cc606b9db60c3a46015d8b8aa4a5e3ce3ae8aba5595e28a78