[INFO] cloning repository https://github.com/hamptonmoore/optimizing-brainfuck-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hamptonmoore/optimizing-brainfuck-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamptonmoore%2Foptimizing-brainfuck-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamptonmoore%2Foptimizing-brainfuck-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd84d8c09569f77b7f50029ac64eebade3174ac7
[INFO] testing hamptonmoore/optimizing-brainfuck-compiler against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhamptonmoore%2Foptimizing-brainfuck-compiler" "/workspace/builds/worker-119/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-119/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hamptonmoore/optimizing-brainfuck-compiler on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hamptonmoore/optimizing-brainfuck-compiler
[INFO] finished tweaking git repo https://github.com/hamptonmoore/optimizing-brainfuck-compiler
[INFO] tweaked toml for git repo https://github.com/hamptonmoore/optimizing-brainfuck-compiler written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] crate git repo https://github.com/hamptonmoore/optimizing-brainfuck-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ff805531af9ac4dfd62e67b89bbb4f28022e9d6e7fe1c18a02f1667d4825525
[INFO] running `Command { std: "docker" "start" "-a" "1ff805531af9ac4dfd62e67b89bbb4f28022e9d6e7fe1c18a02f1667d4825525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ff805531af9ac4dfd62e67b89bbb4f28022e9d6e7fe1c18a02f1667d4825525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff805531af9ac4dfd62e67b89bbb4f28022e9d6e7fe1c18a02f1667d4825525", kill_on_drop: false }`
[INFO] [stdout] 1ff805531af9ac4dfd62e67b89bbb4f28022e9d6e7fe1c18a02f1667d4825525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ffb240279654a1604dab09e90e26f9dacbd3d9ed5446ede98cc1d8786fe5133
[INFO] running `Command { std: "docker" "start" "-a" "5ffb240279654a1604dab09e90e26f9dacbd3d9ed5446ede98cc1d8786fe5133", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling optimizing-brainfuck-compiler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stdout`
[INFO] [stdout]   --> src/main.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use std::io::{stdin,stdout};
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 Instruction::Input => {},
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     stdin().read_line(&mut s);
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.37s
[INFO] running `Command { std: "docker" "inspect" "5ffb240279654a1604dab09e90e26f9dacbd3d9ed5446ede98cc1d8786fe5133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ffb240279654a1604dab09e90e26f9dacbd3d9ed5446ede98cc1d8786fe5133", kill_on_drop: false }`
[INFO] [stdout] 5ffb240279654a1604dab09e90e26f9dacbd3d9ed5446ede98cc1d8786fe5133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 006d1e632cd164918fbe88f43a39cb768413fb341d8fef81479d04f1596a90f2
[INFO] running `Command { std: "docker" "start" "-a" "006d1e632cd164918fbe88f43a39cb768413fb341d8fef81479d04f1596a90f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimizing-brainfuck-compiler v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `stdout`
[INFO] [stdout]   --> src/main.rs:29:25
[INFO] [stdout]    |
[INFO] [stdout] 29 |     use std::io::{stdin,stdout};
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 Instruction::Input => {},
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:21
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     stdin().read_line(&mut s);
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "006d1e632cd164918fbe88f43a39cb768413fb341d8fef81479d04f1596a90f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "006d1e632cd164918fbe88f43a39cb768413fb341d8fef81479d04f1596a90f2", kill_on_drop: false }`
[INFO] [stdout] 006d1e632cd164918fbe88f43a39cb768413fb341d8fef81479d04f1596a90f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8b2f0f18dab5264f3e2c6119ca53e084dd94cf4d41e48b0a31c1804c65463b5
[INFO] running `Command { std: "docker" "start" "-a" "e8b2f0f18dab5264f3e2c6119ca53e084dd94cf4d41e48b0a31c1804c65463b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `stdout`
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:29:25
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 29 |     use std::io::{stdin,stdout};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:68:17
[INFO] [stderr]    |
[INFO] [stderr] 68 |                 Instruction::Input => {},
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:21
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     stdin().read_line(&mut s);
[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: `optimizing-brainfuck-compiler` (bin "optimizing-brainfuck-compiler" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optimizing_brainfuck_compiler-0a5bcce998228eb5)
[INFO] running `Command { std: "docker" "inspect" "e8b2f0f18dab5264f3e2c6119ca53e084dd94cf4d41e48b0a31c1804c65463b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b2f0f18dab5264f3e2c6119ca53e084dd94cf4d41e48b0a31c1804c65463b5", kill_on_drop: false }`
[INFO] [stdout] e8b2f0f18dab5264f3e2c6119ca53e084dd94cf4d41e48b0a31c1804c65463b5