[INFO] cloning repository https://github.com/zxqcs/rusmachine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zxqcs/rusmachine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3647c3afc13eb9eaf67a9d97f1fac9d390dda27
[INFO] checking zxqcs/rusmachine against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzxqcs%2Frusmachine" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zxqcs/rusmachine on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zxqcs/rusmachine
[INFO] finished tweaking git repo https://github.com/zxqcs/rusmachine
[INFO] tweaked toml for git repo https://github.com/zxqcs/rusmachine written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/zxqcs/rusmachine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a188286931c89100c458725a173b3b3e5e15e29fe7468977d4727f442195a94c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a188286931c89100c458725a173b3b3e5e15e29fe7468977d4727f442195a94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a188286931c89100c458725a173b3b3e5e15e29fe7468977d4727f442195a94c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a188286931c89100c458725a173b3b3e5e15e29fe7468977d4727f442195a94c", kill_on_drop: false }`
[INFO] [stdout] a188286931c89100c458725a173b3b3e5e15e29fe7468977d4727f442195a94c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f98205db715e8872fafddb47f8cacd203a9b1944e52ff974003b52b0303da416
[INFO] running `Command { std: "docker" "start" "-a" "f98205db715e8872fafddb47f8cacd203a9b1944e52ff974003b52b0303da416", kill_on_drop: false }`
[INFO] [stderr]     Checking machine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/basic_machine.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use std::{collections::HashMap, hash::Hash};
[INFO] [stdout]   |                                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BasicMachine`
[INFO] [stdout]  --> src/basic_machine.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub struct BasicMachine<T> {
[INFO] [stdout]   |                ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_stack`
[INFO] [stdout]   --> src/basic_machine.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |         fn initilize_stack(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_registers`
[INFO] [stdout]   --> src/basic_machine.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         fn initilize_registers(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize_instruction_seq`
[INFO] [stdout]   --> src/basic_machine.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn initialize_instruction_seq(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_basic_machine`
[INFO] [stdout]   --> src/basic_machine.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |         pub fn initilize_basic_machine(&mut self) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hash::Hash`
[INFO] [stdout]  --> src/basic_machine.rs:4:37
[INFO] [stdout]   |
[INFO] [stdout] 4 |     use std::{collections::HashMap, hash::Hash};
[INFO] [stdout]   |                                     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/infrastructure.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |         pub fn new(s: &'static str) -> Self {
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/infrastructure.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |         pub fn get(&self) -> &Item {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]   --> src/infrastructure.rs:59:16
[INFO] [stdout]    |
[INFO] [stdout] 59 |         pub fn set(&mut self, val: Item) {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/infrastructure.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |         pub fn pop(&mut self) -> Option<Item> {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `BasicMachine`
[INFO] [stdout]  --> src/basic_machine.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub struct BasicMachine<T> {
[INFO] [stdout]   |                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_stack`
[INFO] [stdout]   --> src/basic_machine.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |         fn initilize_stack(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_registers`
[INFO] [stdout]   --> src/basic_machine.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |         fn initilize_registers(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initialize_instruction_seq`
[INFO] [stdout]   --> src/basic_machine.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         fn initialize_instruction_seq(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `initilize_basic_machine`
[INFO] [stdout]   --> src/basic_machine.rs:27:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |         pub fn initilize_basic_machine(&mut self) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "f98205db715e8872fafddb47f8cacd203a9b1944e52ff974003b52b0303da416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f98205db715e8872fafddb47f8cacd203a9b1944e52ff974003b52b0303da416", kill_on_drop: false }`
[INFO] [stdout] f98205db715e8872fafddb47f8cacd203a9b1944e52ff974003b52b0303da416