[INFO] cloning repository https://github.com/scjudd/gb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/scjudd/gb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscjudd%2Fgb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscjudd%2Fgb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c332b803ad5be91e67077cbc5e845b472af28e1
[INFO] checking scjudd/gb against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fscjudd%2Fgb" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/scjudd/gb
[INFO] finished tweaking git repo https://github.com/scjudd/gb
[INFO] tweaked toml for git repo https://github.com/scjudd/gb written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/scjudd/gb on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/scjudd/gb 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24409693b13fa1094758a3db0249b32f371426e0d8fa09419dd8d6bea757815e
[INFO] running `Command { std: "docker" "start" "-a" "24409693b13fa1094758a3db0249b32f371426e0d8fa09419dd8d6bea757815e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24409693b13fa1094758a3db0249b32f371426e0d8fa09419dd8d6bea757815e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24409693b13fa1094758a3db0249b32f371426e0d8fa09419dd8d6bea757815e", kill_on_drop: false }`
[INFO] [stdout] 24409693b13fa1094758a3db0249b32f371426e0d8fa09419dd8d6bea757815e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dce964b22db1f5a4ad4f3c96cf2b23fc1b848e422c0b44fc67ff5debde7bc3d
[INFO] running `Command { std: "docker" "start" "-a" "9dce964b22db1f5a4ad4f3c96cf2b23fc1b848e422c0b44fc67ff5debde7bc3d", kill_on_drop: false }`
[INFO] [stderr]     Checking gb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `FakeBus` is never constructed
[INFO] [stdout]    --> src/bus.rs:152:12
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct FakeBus {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bus.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 156 | impl FakeBus {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 157 |     pub fn new() -> FakeBus {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_cycle_count` and `get_stopped` are never used
[INFO] [stdout]   --> src/cpu.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 3  | pub trait Compute {
[INFO] [stdout]    |           ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 13 |     fn get_cycle_count(&self) -> u64;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     fn get_stopped(&self) -> bool;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `reset` is never used
[INFO] [stdout]   --> src/cpu.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | impl Cpu {
[INFO] [stdout]    | -------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 55 |     pub fn reset() -> Cpu {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `reset` is never used
[INFO] [stdout]   --> src/registers.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 95 | impl Registers {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] 96 |     /// Return a set of registers that have been reset to zero.
[INFO] [stdout] 97 |     pub fn reset() -> Registers {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "9dce964b22db1f5a4ad4f3c96cf2b23fc1b848e422c0b44fc67ff5debde7bc3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dce964b22db1f5a4ad4f3c96cf2b23fc1b848e422c0b44fc67ff5debde7bc3d", kill_on_drop: false }`
[INFO] [stdout] 9dce964b22db1f5a4ad4f3c96cf2b23fc1b848e422c0b44fc67ff5debde7bc3d