[INFO] cloning repository https://github.com/parisholley/rust-ptrbug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parisholley/rust-ptrbug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96fb797297a4e26f0d5e6a4bb6860c929a87157c
[INFO] testing parisholley/rust-ptrbug against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparisholley%2Frust-ptrbug" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/parisholley/rust-ptrbug on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/parisholley/rust-ptrbug
[INFO] finished tweaking git repo https://github.com/parisholley/rust-ptrbug
[INFO] tweaked toml for git repo https://github.com/parisholley/rust-ptrbug written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/parisholley/rust-ptrbug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b185e044067e7e09f90a7371b00c93b54f9b8745e8e0926ee3382fae0752a35
[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" "7b185e044067e7e09f90a7371b00c93b54f9b8745e8e0926ee3382fae0752a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b185e044067e7e09f90a7371b00c93b54f9b8745e8e0926ee3382fae0752a35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b185e044067e7e09f90a7371b00c93b54f9b8745e8e0926ee3382fae0752a35", kill_on_drop: false }`
[INFO] [stdout] 7b185e044067e7e09f90a7371b00c93b54f9b8745e8e0926ee3382fae0752a35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 3d3c3c9befa998582eee51f916335eb84157138dc01df6c8d6596b903e0fd56e
[INFO] running `Command { std: "docker" "start" "-a" "3d3c3c9befa998582eee51f916335eb84157138dc01df6c8d6596b903e0fd56e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling test-sys v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `NonNull`
[INFO] [stdout]  --> src/lib.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::ptr::{NonNull};
[INFO] [stdout]   |                ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `poolStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type poolStruct = poolStructT;
[INFO] [stdout]   |          ^^^^^^^^^^ help: convert the identifier to upper camel case: `PoolStruct`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `engineStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type engineStruct = engineStructT;
[INFO] [stdout]   |          ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `EngineStruct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `workerStruct` should have an upper camel case name
[INFO] [stdout]  --> src/bind.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub type workerStruct = workerStructT;
[INFO] [stdout]   |          ^^^^^^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `WorkerStruct`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cstr_ptr`
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let cstr_ptr = cstr.into_raw();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cstr_ptr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> src/lib.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut engine:MaybeUninit<engineStruct> = unsafe { MaybeUninit::uninit()};
[INFO] [stdout]    |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:74:13
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut engine:MaybeUninit<engineStruct> = unsafe { MaybeUninit::uninit()};
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let mut engine = MaybeUninit::uninit();
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/lib.rs:74:52
[INFO] [stdout]    |
[INFO] [stdout] 74 |         let mut engine:MaybeUninit<engineStruct> = unsafe { MaybeUninit::uninit()};
[INFO] [stdout]    |                                                    ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         unsafe{
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Engine`
[INFO] [stdout]   --> src/lib.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Engine{
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `assert_engine`
[INFO] [stdout]   --> src/lib.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn assert_engine(engine:*mut engineStruct){
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `do_get_release_worker`
[INFO] [stdout]   --> src/lib.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn do_get_release_worker(engine: *mut engineStruct) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `panic_static`
[INFO] [stdout]   --> src/lib.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | static panic_static:&str = "this static str should not cause panic";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `panic_string`
[INFO] [stdout]   --> src/lib.rs:41:1
[INFO] [stdout]    |
[INFO] [stdout] 41 | const panic_string:&str = "this const str should not cause panic";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_println`
[INFO] [stdout]   --> src/lib.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn should_not_cause_panic_println(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_cstring`
[INFO] [stdout]   --> src/lib.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn should_not_cause_panic_cstring(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_str`
[INFO] [stdout]   --> src/lib.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn should_not_cause_panic_str(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_static_vec`
[INFO] [stdout]   --> src/lib.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn should_not_cause_panic_static_vec(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_static_to_string`
[INFO] [stdout]   --> src/lib.rs:60:4
[INFO] [stdout]    |
[INFO] [stdout] 60 | fn should_not_cause_panic_static_to_string(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_const_to_string`
[INFO] [stdout]   --> src/lib.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn should_not_cause_panic_const_to_string(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `should_not_cause_panic_to_string`
[INFO] [stdout]   --> src/lib.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn should_not_cause_panic_to_string(){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new() -> Engine{
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_release_worker`
[INFO] [stdout]    --> src/lib.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn get_release_worker(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `startEngine`
[INFO] [stdout]    --> src/bind.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn startEngine(engine: *mut engineStruct);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `getWorker`
[INFO] [stdout]    --> src/bind.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn getWorker(engine: *const engineStruct) -> *mut workerStruct;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `releaseWorker`
[INFO] [stdout]    --> src/bind.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn releaseWorker(worker: *mut workerStruct) -> ::std::os::raw::c_int;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_ref)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_ref` has been stable since 1.55.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_ref)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `panic_static` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | static panic_static:&str = "this static str should not cause panic";
[INFO] [stdout]    |        ^^^^^^^^^^^^ help: convert the identifier to upper case: `PANIC_STATIC`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `panic_string` should have an upper case name
[INFO] [stdout]   --> src/lib.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | const panic_string:&str = "this const str should not cause panic";
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: convert the identifier to upper case: `PANIC_STRING`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 30 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-sys` due to 3 previous errors; 30 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3d3c3c9befa998582eee51f916335eb84157138dc01df6c8d6596b903e0fd56e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3c3c9befa998582eee51f916335eb84157138dc01df6c8d6596b903e0fd56e", kill_on_drop: false }`
[INFO] [stdout] 3d3c3c9befa998582eee51f916335eb84157138dc01df6c8d6596b903e0fd56e