[INFO] cloning repository https://github.com/tootoobeepbeep/brainf-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tootoobeepbeep/brainf-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fbrainf-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fbrainf-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5ded3488744576cc30892e6a492e31de33e8e5d
[INFO] checking tootoobeepbeep/brainf-compiler against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fbrainf-compiler" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tootoobeepbeep/brainf-compiler
[INFO] finished tweaking git repo https://github.com/tootoobeepbeep/brainf-compiler
[INFO] tweaked toml for git repo https://github.com/tootoobeepbeep/brainf-compiler written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tootoobeepbeep/brainf-compiler on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tootoobeepbeep/brainf-compiler 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking tootoobeepbeep/brainf-compiler against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftootoobeepbeep%2Fbrainf-compiler" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tootoobeepbeep/brainf-compiler
[INFO] finished tweaking git repo https://github.com/tootoobeepbeep/brainf-compiler
[INFO] tweaked toml for git repo https://github.com/tootoobeepbeep/brainf-compiler written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tootoobeepbeep/brainf-compiler on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tootoobeepbeep/brainf-compiler 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6efd28c9707eddfb1765e13aaebf662c019a8e183e4398f6e7e24ded86b374a3
[INFO] running `Command { std: "docker" "start" "-a" "6efd28c9707eddfb1765e13aaebf662c019a8e183e4398f6e7e24ded86b374a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6efd28c9707eddfb1765e13aaebf662c019a8e183e4398f6e7e24ded86b374a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6efd28c9707eddfb1765e13aaebf662c019a8e183e4398f6e7e24ded86b374a3", kill_on_drop: false }`
[INFO] [stdout] 6efd28c9707eddfb1765e13aaebf662c019a8e183e4398f6e7e24ded86b374a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f10972e11d93ad5cc683124f58a37754206ae9c0bb9a2bb79f22a731db4dcf34
[INFO] running `Command { std: "docker" "start" "-a" "f10972e11d93ad5cc683124f58a37754206ae9c0bb9a2bb79f22a731db4dcf34", kill_on_drop: false }`
[INFO] [stderr]     Checking bf-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/compile_riscv.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/compile_riscv.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/compile_riscv.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut stack_size = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack_size`
[INFO] [stdout]   --> src/compile_riscv.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut stack_size = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 |                assert!(ptr >= 0)},
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/compile_riscv.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut stack_size = 0;
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack_size`
[INFO] [stdout]   --> src/compile_riscv.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut stack_size = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:27:24
[INFO] [stdout]    |
[INFO] [stdout] 27 |                assert!(ptr >= 0)},
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         compile_riscv::compile(testcase);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = compile_riscv::compile(testcase);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |         compile_riscv::compile(testcase);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let _ = compile_riscv::compile(testcase);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f10972e11d93ad5cc683124f58a37754206ae9c0bb9a2bb79f22a731db4dcf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f10972e11d93ad5cc683124f58a37754206ae9c0bb9a2bb79f22a731db4dcf34", kill_on_drop: false }`
[INFO] [stdout] f10972e11d93ad5cc683124f58a37754206ae9c0bb9a2bb79f22a731db4dcf34
