[INFO] cloning repository https://github.com/fky2015/brainfuck-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fky2015/brainfuck-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffky2015%2Fbrainfuck-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffky2015%2Fbrainfuck-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b644d4722f489fde38b9df4a8b59f472465c2fc
[INFO] building fky2015/brainfuck-rs against try#3bbb5242a8064de4ca3af4036745ddf603ddaa85 for pr-101929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffky2015%2Fbrainfuck-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fky2015/brainfuck-rs on toolchain 3bbb5242a8064de4ca3af4036745ddf603ddaa85
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fky2015/brainfuck-rs
[INFO] finished tweaking git repo https://github.com/fky2015/brainfuck-rs
[INFO] tweaked toml for git repo https://github.com/fky2015/brainfuck-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/fky2015/brainfuck-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abf6dd44b9e2fd0915945f59c0722b77ef9acb2c010bda0725544df2b7011158
[INFO] running `Command { std: "docker" "start" "-a" "abf6dd44b9e2fd0915945f59c0722b77ef9acb2c010bda0725544df2b7011158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abf6dd44b9e2fd0915945f59c0722b77ef9acb2c010bda0725544df2b7011158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abf6dd44b9e2fd0915945f59c0722b77ef9acb2c010bda0725544df2b7011158", kill_on_drop: false }`
[INFO] [stdout] abf6dd44b9e2fd0915945f59c0722b77ef9acb2c010bda0725544df2b7011158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cf6cbe59be16b8b1a9f349d525276ff7cfaa7763594f33eac71f720c726c426
[INFO] running `Command { std: "docker" "start" "-a" "7cf6cbe59be16b8b1a9f349d525276ff7cfaa7763594f33eac71f720c726c426", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling clap_lex v0.1.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.1.12
[INFO] [stderr]    Compiling brainfuck-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `StdOut`
[INFO] [stdout]    --> src/lib.rs:195:31
[INFO] [stdout]     |
[INFO] [stdout] 195 |         io::{StdIn, StdInOut, StdOut},
[INFO] [stdout]     |                               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StdIn`
[INFO] [stdout]    --> src/lib.rs:195:14
[INFO] [stdout]     |
[INFO] [stdout] 195 |         io::{StdIn, StdInOut, StdOut},
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `print_memory` is never used
[INFO] [stdout]    --> src/lib.rs:273:16
[INFO] [stdout]     |
[INFO] [stdout] 273 |         pub fn print_memory(&self) {
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_helper` is never used
[INFO] [stdout]    --> src/lib.rs:327:12
[INFO] [stdout]     |
[INFO] [stdout] 327 |     pub fn test_helper(source_code: &str, input: Option<&str>, output: Option<&str>) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_test_from_file` is never used
[INFO] [stdout]    --> src/lib.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn load_test_from_file(file_name: &str) -> (String, Option<String>, Option<String>) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:377:16
[INFO] [stdout]     |
[INFO] [stdout] 377 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `push_input` is never used
[INFO] [stdout]    --> src/lib.rs:384:16
[INFO] [stdout]     |
[INFO] [stdout] 384 |         pub fn push_input(&mut self, input: &str) {
[INFO] [stdout]     |                ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.88s
[INFO] running `Command { std: "docker" "inspect" "7cf6cbe59be16b8b1a9f349d525276ff7cfaa7763594f33eac71f720c726c426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cf6cbe59be16b8b1a9f349d525276ff7cfaa7763594f33eac71f720c726c426", kill_on_drop: false }`
[INFO] [stdout] 7cf6cbe59be16b8b1a9f349d525276ff7cfaa7763594f33eac71f720c726c426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e92e462e59ac3446a933540fd361ddeb5362c86f92d432d6a560a917a465022e" "/opt/rustwide/cargo-home/bin/cargo" "+3bbb5242a8064de4ca3af4036745ddf603ddaa85" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77c0827fb1e2dc6f3c4b8cd103ec1115acecf4f28a4eaa613dabcd10d2bd3b81
[INFO] running `Command { std: "docker" "start" "-a" "77c0827fb1e2dc6f3c4b8cd103ec1115acecf4f28a4eaa613dabcd10d2bd3b81", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "77c0827fb1e2dc6f3c4b8cd103ec1115acecf4f28a4eaa613dabcd10d2bd3b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c0827fb1e2dc6f3c4b8cd103ec1115acecf4f28a4eaa613dabcd10d2bd3b81", kill_on_drop: false }`
[INFO] [stdout] 77c0827fb1e2dc6f3c4b8cd103ec1115acecf4f28a4eaa613dabcd10d2bd3b81