[INFO] cloning repository https://github.com/mattdarc/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattdarc/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdarc%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdarc%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a28bc8b3b5480ee18505f384f3daf3b7d5aa34d
[INFO] testing mattdarc/rlox against master#1f7f8ea0721a3b1eb73e6c6d25cccb371434b320 for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattdarc%2Frlox" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mattdarc/rlox
[INFO] finished tweaking git repo https://github.com/mattdarc/rlox
[INFO] tweaked toml for git repo https://github.com/mattdarc/rlox written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mattdarc/rlox on toolchain 1f7f8ea0721a3b1eb73e6c6d25cccb371434b320
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mattdarc/rlox 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" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 210a787ae6343db8ae8363072836287fb37849c106c2a5b3597ff1237095a913
[INFO] running `Command { std: "docker" "start" "-a" "210a787ae6343db8ae8363072836287fb37849c106c2a5b3597ff1237095a913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "210a787ae6343db8ae8363072836287fb37849c106c2a5b3597ff1237095a913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "210a787ae6343db8ae8363072836287fb37849c106c2a5b3597ff1237095a913", kill_on_drop: false }`
[INFO] [stdout] 210a787ae6343db8ae8363072836287fb37849c106c2a5b3597ff1237095a913
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69efcbd107d5e5dfd244094aceedbdbc12db42b2c9908fd03393b73b90529b11
[INFO] running `Command { std: "docker" "start" "-a" "69efcbd107d5e5dfd244094aceedbdbc12db42b2c9908fd03393b73b90529b11", kill_on_drop: false }`
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/immix/immix.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockList` is never constructed
[INFO] [stdout]  --> src/immix/blocklist.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BlockList<A: AllocationPolicy> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `alloc`, and `dealloc` are never used
[INFO] [stdout]   --> src/immix/blocklist.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<A: AllocationPolicy> BlockList<A> {
[INFO] [stdout]    | -------------------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn alloc(&mut self, bytes: usize) -> Result<ManagedPtr, AllocError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BlockState` is never used
[INFO] [stdout]   --> src/immix/bump_alloc.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum BlockState {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ManagedPtr` is never constructed
[INFO] [stdout]   --> src/immix/bump_alloc.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct ManagedPtr {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/immix/bump_alloc.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl ManagedPtr {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(inner: NonNull<u8>, size: usize) -> ManagedPtr {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BumpBlock` is never constructed
[INFO] [stdout]   --> src/immix/bump_alloc.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct BumpBlock<A: AllocationPolicy> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `inner_dealloc`, `inner_alloc`, `get_block_state`, `contains`, and `find_first_hole` are never used
[INFO] [stdout]    --> src/immix/bump_alloc.rs:55:12
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl<A: AllocationPolicy> BumpBlock<A> {
[INFO] [stdout]     | -------------------------------------- associated items in this implementation
[INFO] [stdout]  55 |     pub fn new() -> Result<Self, AllocError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn inner_dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn inner_alloc(&mut self, bytes: usize) -> Option<ManagedPtr> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub fn get_block_state(&self) -> BlockState {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     pub fn contains(&self, ptr: &ManagedPtr) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn find_first_hole(&self) -> Option<(usize, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectHeader` is never used
[INFO] [stdout]  --> src/immix/header.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait ObjectHeader {
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultAllocation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct DefaultAllocation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultReclamation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct DefaultReclamation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImmixGc` is never constructed
[INFO] [stdout]   --> src/immix/immix.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ImmixGc<A: AllocationPolicy, R: ReclamationPolicy> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StickyImmix` is never used
[INFO] [stdout]   --> src/immix/immix.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type StickyImmix = ImmixGc<DefaultAllocation, DefaultReclamation>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `alloc` is never used
[INFO] [stdout]   --> src/immix/immix.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<A: AllocationPolicy, R: ReclamationPolicy> ImmixGc<A, R> {
[INFO] [stdout]    | ------------------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LineMap` is never constructed
[INFO] [stdout]  --> src/immix/linemap.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LineMap(BitVec);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/immix/linemap.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl LineMap {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  7 |     pub fn new(size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn is_used(&self, line: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn set_used(&mut self, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_unused(&mut self, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn set_range_used(&mut self, start: usize, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set_range_unused(&mut self, start: usize, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn entire_block_unused(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn entire_block_used(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn find_next_used(&self, line: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn find_next_unused(&self, line: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn print(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn dump(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `AllocError` is never used
[INFO] [stdout]  --> src/immix/memory.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum AllocError {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/immix/memory.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockPtr` is never used
[INFO] [stdout]   --> src/immix/memory.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type BlockPtr = NonNull<u8>;
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockSize` is never used
[INFO] [stdout]   --> src/immix/memory.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type BlockSize = usize;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockResult` is never used
[INFO] [stdout]   --> src/immix/memory.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type BlockResult = Result<Block, AllocError>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `into_ptr_mut`, `size`, and `as_ptr` are never used
[INFO] [stdout]   --> src/immix/memory.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new(size: BlockSize) -> BlockResult {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn into_ptr_mut(self) -> BlockPtr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn size(&self) -> BlockSize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn as_ptr(&self) -> *mut u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `alloc_block` is never used
[INFO] [stdout]   --> src/immix/memory.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn alloc_block(size: BlockSize) -> BlockResult {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dealloc_block` is never used
[INFO] [stdout]   --> src/immix/memory.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn dealloc_block(block: &mut Block) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AllocationPolicy` is never used
[INFO] [stdout]  --> src/immix/policy.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait AllocationPolicy {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReclamationPolicy` is never used
[INFO] [stdout]  --> src/immix/policy.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait ReclamationPolicy {}
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ApplicationRoots` is never constructed
[INFO] [stdout]  --> src/immix/roots.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ApplicationRoots {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestAllocator` is never constructed
[INFO] [stdout]  --> src/immix/test_allocator.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TestAllocator;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[f64; 256]` does not permit being left uninitialized
[INFO] [stdout]   --> src/vm.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |             stack: RefCell::new(unsafe { MaybeUninit::uninit().assume_init() }),
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          this code causes undefined behavior when executed
[INFO] [stdout]    |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: floats must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "69efcbd107d5e5dfd244094aceedbdbc12db42b2c9908fd03393b73b90529b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69efcbd107d5e5dfd244094aceedbdbc12db42b2c9908fd03393b73b90529b11", kill_on_drop: false }`
[INFO] [stdout] 69efcbd107d5e5dfd244094aceedbdbc12db42b2c9908fd03393b73b90529b11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05fa32fdc68486db439c0e0164e69c79e855e933451adacdfbc99a8acf2adcfc
[INFO] running `Command { std: "docker" "start" "-a" "05fa32fdc68486db439c0e0164e69c79e855e933451adacdfbc99a8acf2adcfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/immix/immix.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BlockList` is never constructed
[INFO] [stdout]  --> src/immix/blocklist.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BlockList<A: AllocationPolicy> {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `alloc`, and `dealloc` are never used
[INFO] [stdout]   --> src/immix/blocklist.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<A: AllocationPolicy> BlockList<A> {
[INFO] [stdout]    | -------------------------------------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn alloc(&mut self, bytes: usize) -> Result<ManagedPtr, AllocError> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BlockState` is never used
[INFO] [stdout]   --> src/immix/bump_alloc.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum BlockState {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ManagedPtr` is never constructed
[INFO] [stdout]   --> src/immix/bump_alloc.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct ManagedPtr {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/immix/bump_alloc.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl ManagedPtr {
[INFO] [stdout]    | --------------- associated function in this implementation
[INFO] [stdout] 32 |     fn new(inner: NonNull<u8>, size: usize) -> ManagedPtr {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BumpBlock` is never constructed
[INFO] [stdout]   --> src/immix/bump_alloc.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub struct BumpBlock<A: AllocationPolicy> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `inner_dealloc`, `inner_alloc`, `get_block_state`, `contains`, and `find_first_hole` are never used
[INFO] [stdout]    --> src/immix/bump_alloc.rs:55:12
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl<A: AllocationPolicy> BumpBlock<A> {
[INFO] [stdout]     | -------------------------------------- associated items in this implementation
[INFO] [stdout]  55 |     pub fn new() -> Result<Self, AllocError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  67 |     pub fn inner_dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub fn inner_alloc(&mut self, bytes: usize) -> Option<ManagedPtr> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub fn get_block_state(&self) -> BlockState {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     pub fn contains(&self, ptr: &ManagedPtr) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn find_first_hole(&self) -> Option<(usize, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectHeader` is never used
[INFO] [stdout]  --> src/immix/header.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait ObjectHeader {
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultAllocation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct DefaultAllocation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultReclamation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct DefaultReclamation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImmixGc` is never constructed
[INFO] [stdout]   --> src/immix/immix.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ImmixGc<A: AllocationPolicy, R: ReclamationPolicy> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StickyImmix` is never used
[INFO] [stdout]   --> src/immix/immix.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type StickyImmix = ImmixGc<DefaultAllocation, DefaultReclamation>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `alloc` is never used
[INFO] [stdout]   --> src/immix/immix.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<A: AllocationPolicy, R: ReclamationPolicy> ImmixGc<A, R> {
[INFO] [stdout]    | ------------------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LineMap` is never constructed
[INFO] [stdout]  --> src/immix/linemap.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LineMap(BitVec);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/immix/linemap.rs:7:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl LineMap {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout]  7 |     pub fn new(size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub fn is_used(&self, line: usize) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn set_used(&mut self, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn set_unused(&mut self, line: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn set_range_used(&mut self, start: usize, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn set_range_unused(&mut self, start: usize, end: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn entire_block_unused(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn entire_block_used(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn find_next_used(&self, line: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn find_next_unused(&self, line: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn print(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn dump(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `AllocError` is never used
[INFO] [stdout]  --> src/immix/memory.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum AllocError {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Block` is never constructed
[INFO] [stdout]   --> src/immix/memory.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Block {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockPtr` is never used
[INFO] [stdout]   --> src/immix/memory.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub type BlockPtr = NonNull<u8>;
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockSize` is never used
[INFO] [stdout]   --> src/immix/memory.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub type BlockSize = usize;
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `BlockResult` is never used
[INFO] [stdout]   --> src/immix/memory.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub type BlockResult = Result<Block, AllocError>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `into_ptr_mut`, `size`, and `as_ptr` are never used
[INFO] [stdout]   --> src/immix/memory.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Block {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new(size: BlockSize) -> BlockResult {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn into_ptr_mut(self) -> BlockPtr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn size(&self) -> BlockSize {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn as_ptr(&self) -> *mut u8 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `alloc_block` is never used
[INFO] [stdout]   --> src/immix/memory.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn alloc_block(size: BlockSize) -> BlockResult {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dealloc_block` is never used
[INFO] [stdout]   --> src/immix/memory.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn dealloc_block(block: &mut Block) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AllocationPolicy` is never used
[INFO] [stdout]  --> src/immix/policy.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait AllocationPolicy {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReclamationPolicy` is never used
[INFO] [stdout]  --> src/immix/policy.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait ReclamationPolicy {}
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ApplicationRoots` is never constructed
[INFO] [stdout]  --> src/immix/roots.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ApplicationRoots {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestAllocator` is never constructed
[INFO] [stdout]  --> src/immix/test_allocator.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TestAllocator;
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[f64; 256]` does not permit being left uninitialized
[INFO] [stdout]   --> src/vm.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |             stack: RefCell::new(unsafe { MaybeUninit::uninit().assume_init() }),
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          this code causes undefined behavior when executed
[INFO] [stdout]    |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: floats must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `object`
[INFO] [stdout]   --> src/immix/immix.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BlockState` is never used
[INFO] [stdout]   --> src/immix/bump_alloc.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum BlockState {
[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 `get_block_state` is never used
[INFO] [stdout]    --> src/immix/bump_alloc.rs:128:12
[INFO] [stdout]     |
[INFO] [stdout]  54 | impl<A: AllocationPolicy> BumpBlock<A> {
[INFO] [stdout]     | -------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 128 |     pub fn get_block_state(&self) -> BlockState {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ObjectHeader` is never used
[INFO] [stdout]  --> src/immix/header.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait ObjectHeader {
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultAllocation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct DefaultAllocation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DefaultReclamation` is never constructed
[INFO] [stdout]  --> src/immix/immix.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct DefaultReclamation;
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ImmixGc` is never constructed
[INFO] [stdout]   --> src/immix/immix.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct ImmixGc<A: AllocationPolicy, R: ReclamationPolicy> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `StickyImmix` is never used
[INFO] [stdout]   --> src/immix/immix.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub type StickyImmix = ImmixGc<DefaultAllocation, DefaultReclamation>;
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `alloc` is never used
[INFO] [stdout]   --> src/immix/immix.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<A: AllocationPolicy, R: ReclamationPolicy> ImmixGc<A, R> {
[INFO] [stdout]    | ------------------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `print` and `dump` are never used
[INFO] [stdout]   --> src/immix/linemap.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl LineMap {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     pub fn print(&self) -> String {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn dump(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `into_ptr_mut` is never used
[INFO] [stdout]   --> src/immix/memory.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Block {
[INFO] [stdout]    | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn into_ptr_mut(self) -> BlockPtr {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `ReclamationPolicy` is never used
[INFO] [stdout]  --> src/immix/policy.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait ReclamationPolicy {}
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ApplicationRoots` is never constructed
[INFO] [stdout]  --> src/immix/roots.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct ApplicationRoots {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `[f64; 256]` does not permit being left uninitialized
[INFO] [stdout]   --> src/vm.rs:24:42
[INFO] [stdout]    |
[INFO] [stdout] 24 |             stack: RefCell::new(unsafe { MaybeUninit::uninit().assume_init() }),
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          this code causes undefined behavior when executed
[INFO] [stdout]    |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: floats must be initialized
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "05fa32fdc68486db439c0e0164e69c79e855e933451adacdfbc99a8acf2adcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05fa32fdc68486db439c0e0164e69c79e855e933451adacdfbc99a8acf2adcfc", kill_on_drop: false }`
[INFO] [stdout] 05fa32fdc68486db439c0e0164e69c79e855e933451adacdfbc99a8acf2adcfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1f7f8ea0721a3b1eb73e6c6d25cccb371434b320" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62b230d1541fda76de646783082d767c80019dc732695ae8e663bfd5ed3ef0f6
[INFO] running `Command { std: "docker" "start" "-a" "62b230d1541fda76de646783082d767c80019dc732695ae8e663bfd5ed3ef0f6", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `object`
[INFO] [stderr]   --> src/immix/immix.rs:30:46
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stderr]    |                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_object`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BlockList` is never constructed
[INFO] [stderr]  --> src/immix/blocklist.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct BlockList<A: AllocationPolicy> {
[INFO] [stderr]   |            ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `alloc`, and `dealloc` are never used
[INFO] [stderr]   --> src/immix/blocklist.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | impl<A: AllocationPolicy> BlockList<A> {
[INFO] [stderr]    | -------------------------------------- associated items in this implementation
[INFO] [stderr] 11 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn alloc(&mut self, bytes: usize) -> Result<ManagedPtr, AllocError> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 37 |     pub fn dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `BlockState` is never used
[INFO] [stderr]   --> src/immix/bump_alloc.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum BlockState {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ManagedPtr` is never constructed
[INFO] [stderr]   --> src/immix/bump_alloc.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub struct ManagedPtr {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/immix/bump_alloc.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | impl ManagedPtr {
[INFO] [stderr]    | --------------- associated function in this implementation
[INFO] [stderr] 32 |     fn new(inner: NonNull<u8>, size: usize) -> ManagedPtr {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `BumpBlock` is never constructed
[INFO] [stderr]   --> src/immix/bump_alloc.rs:44:12
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub struct BumpBlock<A: AllocationPolicy> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `inner_dealloc`, `inner_alloc`, `get_block_state`, `contains`, and `find_first_hole` are never used
[INFO] [stderr]    --> src/immix/bump_alloc.rs:55:12
[INFO] [stderr]     |
[INFO] [stderr]  54 | impl<A: AllocationPolicy> BumpBlock<A> {
[INFO] [stderr]     | -------------------------------------- associated items in this implementation
[INFO] [stderr]  55 |     pub fn new() -> Result<Self, AllocError> {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] ...
[INFO] [stderr]  67 |     pub fn inner_dealloc(&mut self, ptr: ManagedPtr) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  81 |     pub fn inner_alloc(&mut self, bytes: usize) -> Option<ManagedPtr> {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 128 |     pub fn get_block_state(&self) -> BlockState {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 139 |     pub fn contains(&self, ptr: &ManagedPtr) -> bool {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 149 |     fn find_first_hole(&self) -> Option<(usize, usize)> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ObjectHeader` is never used
[INFO] [stderr]  --> src/immix/header.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub trait ObjectHeader {
[INFO] [stderr]   |           ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DefaultAllocation` is never constructed
[INFO] [stderr]  --> src/immix/immix.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct DefaultAllocation;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DefaultReclamation` is never constructed
[INFO] [stderr]  --> src/immix/immix.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct DefaultReclamation;
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ImmixGc` is never constructed
[INFO] [stderr]   --> src/immix/immix.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct ImmixGc<A: AllocationPolicy, R: ReclamationPolicy> {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `StickyImmix` is never used
[INFO] [stderr]   --> src/immix/immix.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub type StickyImmix = ImmixGc<DefaultAllocation, DefaultReclamation>;
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `alloc` is never used
[INFO] [stderr]   --> src/immix/immix.rs:30:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | impl<A: AllocationPolicy, R: ReclamationPolicy> ImmixGc<A, R> {
[INFO] [stderr]    | ------------------------------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 30 |     pub fn alloc<T: ObjectHeader>(&mut self, object: T) -> NonNull<T> {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `LineMap` is never constructed
[INFO] [stderr]  --> src/immix/linemap.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct LineMap(BitVec);
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated items are never used
[INFO] [stderr]   --> src/immix/linemap.rs:7:12
[INFO] [stderr]    |
[INFO] [stderr]  6 | impl LineMap {
[INFO] [stderr]    | ------------ associated items in this implementation
[INFO] [stderr]  7 |     pub fn new(size: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 12 |     pub fn is_used(&self, line: usize) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn set_used(&mut self, line: usize) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub fn set_unused(&mut self, line: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     pub fn set_range_used(&mut self, start: usize, end: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 39 |     pub fn set_range_unused(&mut self, start: usize, end: usize) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 51 |     pub fn entire_block_unused(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn entire_block_used(&self) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 61 |     pub fn find_next_used(&self, line: usize) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 66 |     pub fn find_next_unused(&self, line: usize) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 70 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |     pub fn print(&self) -> String {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 82 |     pub fn dump(&self) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `AllocError` is never used
[INFO] [stderr]  --> src/immix/memory.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub enum AllocError {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Block` is never constructed
[INFO] [stderr]   --> src/immix/memory.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 | pub struct Block {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `BlockPtr` is never used
[INFO] [stderr]   --> src/immix/memory.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type BlockPtr = NonNull<u8>;
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `BlockSize` is never used
[INFO] [stderr]   --> src/immix/memory.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub type BlockSize = usize;
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `BlockResult` is never used
[INFO] [stderr]   --> src/immix/memory.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub type BlockResult = Result<Block, AllocError>;
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `into_ptr_mut`, `size`, and `as_ptr` are never used
[INFO] [stderr]   --> src/immix/memory.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl Block {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 20 |     pub fn new(size: BlockSize) -> BlockResult {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn into_ptr_mut(self) -> BlockPtr {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 28 |     pub fn size(&self) -> BlockSize {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub fn as_ptr(&self) -> *mut u8 {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `alloc_block` is never used
[INFO] [stderr]   --> src/immix/memory.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn alloc_block(size: BlockSize) -> BlockResult {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `dealloc_block` is never used
[INFO] [stderr]   --> src/immix/memory.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn dealloc_block(block: &mut Block) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `AllocationPolicy` is never used
[INFO] [stderr]  --> src/immix/policy.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub trait AllocationPolicy {
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `ReclamationPolicy` is never used
[INFO] [stderr]  --> src/immix/policy.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub trait ReclamationPolicy {}
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `ApplicationRoots` is never constructed
[INFO] [stderr]  --> src/immix/roots.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct ApplicationRoots {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `TestAllocator` is never constructed
[INFO] [stderr]  --> src/immix/test_allocator.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct TestAllocator;
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the type `[f64; 256]` does not permit being left uninitialized
[INFO] [stderr]   --> src/vm.rs:24:42
[INFO] [stderr]    |
[INFO] [stderr] 24 |             stack: RefCell::new(unsafe { MaybeUninit::uninit().assume_init() }),
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                                          |
[INFO] [stderr]    |                                          this code causes undefined behavior when executed
[INFO] [stderr]    |                                          help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: floats must be initialized
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rlox` (lib) generated 29 warnings (run `cargo fix --lib -p rlox` to apply 1 suggestion)
[INFO] [stderr] warning: enum `BlockState` is never used
[INFO] [stderr]   --> src/immix/bump_alloc.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum BlockState {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_block_state` is never used
[INFO] [stderr]    --> src/immix/bump_alloc.rs:128:12
[INFO] [stderr]     |
[INFO] [stderr]  54 | impl<A: AllocationPolicy> BumpBlock<A> {
[INFO] [stderr]     | -------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 128 |     pub fn get_block_state(&self) -> BlockState {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `print` and `dump` are never used
[INFO] [stderr]   --> src/immix/linemap.rs:74:12
[INFO] [stderr]    |
[INFO] [stderr]  6 | impl LineMap {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 74 |     pub fn print(&self) -> String {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 82 |     pub fn dump(&self) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `into_ptr_mut` is never used
[INFO] [stderr]   --> src/immix/memory.rs:24:12
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl Block {
[INFO] [stderr]    | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 24 |     pub fn into_ptr_mut(self) -> BlockPtr {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rlox` (lib test) generated 14 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/librlox-100d4639f6918f71)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test bytecode::test::get_instr_line ... ok
[INFO] [stdout] test immix::blocklist::test::alloc_dealloc_blocks ... ok
[INFO] [stdout] test bytecode::test::size_of_instr ... ok
[INFO] [stdout] test immix::bump_alloc::test::block_contains_ptr ... ok
[INFO] [stdout] test immix::bump_alloc::test::dealloc_bytes ... ok
[INFO] [stdout] test immix::bump_alloc::test::allocate_bytes ... ok
[INFO] [stdout] test immix::memory::test::test_32k ... ok
[INFO] [stdout] test vm::test::negate_value ... ok
[INFO] [stdout] test immix::memory::test::test_16m ... ok
[INFO] [stdout] test immix::linemap::test::next_unused ... ok
[INFO] [stdout] test immix::linemap::test::entire_block_used ... ok
[INFO] [stdout] test immix::linemap::test::entire_block_unused ... ok
[INFO] [stdout] test immix::memory::test::test_4k ... ok
[INFO] [stdout] test immix::memory::test::test_bad_sizealign ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rlox-092bda5a8d1fd199)
[INFO] [stdout] test immix::linemap::test::next_used ... ok
[INFO] [stdout] test immix::linemap::test::used_unused ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests librlox
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "62b230d1541fda76de646783082d767c80019dc732695ae8e663bfd5ed3ef0f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b230d1541fda76de646783082d767c80019dc732695ae8e663bfd5ed3ef0f6", kill_on_drop: false }`
[INFO] [stdout] 62b230d1541fda76de646783082d767c80019dc732695ae8e663bfd5ed3ef0f6
