[INFO] cloning repository https://github.com/juanmilkah/crucible
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juanmilkah/crucible" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanmilkah%2Fcrucible", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanmilkah%2Fcrucible'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0d1a9b374b44d96610daa6c587789765d62fe8e
[INFO] checking juanmilkah/crucible against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuanmilkah%2Fcrucible" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/juanmilkah/crucible
[INFO] finished tweaking git repo https://github.com/juanmilkah/crucible
[INFO] tweaked toml for git repo https://github.com/juanmilkah/crucible written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/juanmilkah/crucible on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/juanmilkah/crucible 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 896c6a3c7b6df0df799ee04f363fed60e5fc09901c33a1a7493c6c2ba7f12643
[INFO] running `Command { std: "docker" "start" "-a" "896c6a3c7b6df0df799ee04f363fed60e5fc09901c33a1a7493c6c2ba7f12643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "896c6a3c7b6df0df799ee04f363fed60e5fc09901c33a1a7493c6c2ba7f12643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "896c6a3c7b6df0df799ee04f363fed60e5fc09901c33a1a7493c6c2ba7f12643", kill_on_drop: false }`
[INFO] [stdout] 896c6a3c7b6df0df799ee04f363fed60e5fc09901c33a1a7493c6c2ba7f12643
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba9b3f1d1f78f7d21add46a0cf7da656f1f5af3c7d0885690c6dbb740d168423
[INFO] running `Command { std: "docker" "start" "-a" "ba9b3f1d1f78f7d21add46a0cf7da656f1f5af3c7d0885690c6dbb740d168423", kill_on_drop: false }`
[INFO] [stderr]     Checking crucible v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated items `with_memory_size`, `print_state`, `get_register`, `get_memory_byte`, and `set_memory_string` are never used
[INFO] [stdout]    --> src/main.rs:87:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl VirtualMachine {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  87 |     fn with_memory_size(size: usize) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 369 |     fn print_state(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 406 |     fn get_register(&self, reg: u8) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 410 |     fn get_memory_byte(&self, addr: usize) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 414 |     fn set_memory_string(&mut self, addr: usize, s: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_state` is never used
[INFO] [stdout]    --> src/main.rs:369:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl VirtualMachine {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 369 |     fn print_state(&self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "ba9b3f1d1f78f7d21add46a0cf7da656f1f5af3c7d0885690c6dbb740d168423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba9b3f1d1f78f7d21add46a0cf7da656f1f5af3c7d0885690c6dbb740d168423", kill_on_drop: false }`
[INFO] [stdout] ba9b3f1d1f78f7d21add46a0cf7da656f1f5af3c7d0885690c6dbb740d168423