[INFO] cloning repository https://github.com/ticki/b
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ticki/b" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticki%2Fb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticki%2Fb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b155633ed5c8e2dba46b1fceb52562df1c6cccd
[INFO] checking ticki/b against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fticki%2Fb" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ticki/b on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ticki/b
[INFO] finished tweaking git repo https://github.com/ticki/b
[INFO] tweaked toml for git repo https://github.com/ticki/b written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ticki/b already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 007dcbb7d593a0b9b6e5fcd903b3eb7de565398863e70ca85cb6aa78a010a9f3
[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" "007dcbb7d593a0b9b6e5fcd903b3eb7de565398863e70ca85cb6aa78a010a9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "007dcbb7d593a0b9b6e5fcd903b3eb7de565398863e70ca85cb6aa78a010a9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "007dcbb7d593a0b9b6e5fcd903b3eb7de565398863e70ca85cb6aa78a010a9f3", kill_on_drop: false }`
[INFO] [stdout] 007dcbb7d593a0b9b6e5fcd903b3eb7de565398863e70ca85cb6aa78a010a9f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8a1dccbd023ab10e5837795c4b1673b72b069a38817b696fea9884b35de2430
[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" "c8a1dccbd023ab10e5837795c4b1673b72b069a38817b696fea9884b35de2430", 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] [stderr]     Checking jemalloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IndexMut`, `Index`
[INFO] [stdout]  --> src/memory.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::ops::{Index, IndexMut};
[INFO] [stdout]   |                 ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `intrinsics`
[INFO] [stdout]  --> src/memory.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{cmp, intrinsics, mem};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/memory.rs:119:30
[INFO] [stdout]     |
[INFO] [stdout] 119 |         MemoryState::from_u8(((ptr::read_u8((self.ptr + byte) as *mut u8) >> bit) & 0b11))
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IndexMut`, `Index`
[INFO] [stdout]  --> src/memory.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::ops::{Index, IndexMut};
[INFO] [stdout]   |                 ^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `intrinsics`
[INFO] [stdout]  --> src/memory.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::{cmp, intrinsics, mem};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/memory.rs:119:30
[INFO] [stdout]     |
[INFO] [stdout] 119 |         MemoryState::from_u8(((ptr::read_u8((self.ptr + byte) as *mut u8) >> bit) & 0b11))
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let b = memory::alloc(i);
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `size` is never read
[INFO] [stdout]    --> src/memory.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         size = (1 << order) * MT_ATOM;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:348:13
[INFO] [stdout]     |
[INFO] [stdout] 348 |         for i in 0..delta {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/memory.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let mut level = 0;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `size` is never read
[INFO] [stdout]    --> src/memory.rs:366:13
[INFO] [stdout]     |
[INFO] [stdout] 366 |             size = (1 << order) * MT_ATOM;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:372:21
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 for i in 1..(-delta as usize) {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:380:21
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 for i in 1..delta {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let mut level = 0;
[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: taking a mutable reference to a `const` item
[INFO] [stdout]    --> src/memory.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |     MT.dealloc(b);
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]     = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]     = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]    --> src/memory.rs:408:5
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub unsafe fn dealloc(&mut self, block: Block) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]    --> src/memory.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | / pub const MT: MemoryTree = MemoryTree {
[INFO] [stdout] 27  | |     tree: StateTree {
[INFO] [stdout] 28  | |         arr: StateArray {
[INFO] [stdout] 29  | |             ptr: MT_PTR,
[INFO] [stdout] 30  | |         }
[INFO] [stdout] 31  | |     },
[INFO] [stdout] 32  | | };
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:523:17
[INFO] [stdout]     |
[INFO] [stdout] 523 |     if let Some(mut b) = MT.realloc(Block::from_ptr(ptr), size) {
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:552:9
[INFO] [stdout]     |
[INFO] [stdout] 552 |     let mut ret = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:562:9
[INFO] [stdout]     |
[INFO] [stdout] 562 |     let mut ret = 1024 * 1024;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub unsafe fn alloc(size: usize) -> usize {
[INFO] [stdout]     | ----------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 441 |     unsafe {
[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/memory.rs:467:5
[INFO] [stdout]     |
[INFO] [stdout] 459 | pub unsafe fn alloc_aligned(size: usize, align: usize) -> usize {
[INFO] [stdout]     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 467 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:553:5
[INFO] [stdout]     |
[INFO] [stdout] 553 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:563:5
[INFO] [stdout]     |
[INFO] [stdout] 563 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MT_ROOT`
[INFO] [stdout]   --> src/memory.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub const MT_ROOT: usize = MT_LEAFS * MT_ATOM;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read`
[INFO] [stdout]   --> src/memory.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub unsafe fn read(ptr: *const u8) -> u8 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pos`
[INFO] [stdout]    --> src/memory.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn pos(&self, idx: usize, level: usize) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]    --> src/memory.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Left = 0,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]    --> src/memory.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     Right = 1,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sibl`
[INFO] [stdout]    --> src/memory.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn sibl(&self) -> Sibling {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parrent`
[INFO] [stdout]    --> src/memory.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 207 |     pub fn parrent(&self) -> Block {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/memory.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn size(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_pos`
[INFO] [stdout]    --> src/memory.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |     pub fn from_pos(pos: usize) -> Block {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_ptr`
[INFO] [stdout]    --> src/memory.rs:233:12
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn from_ptr(ptr: usize) -> Block {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alloc_align`
[INFO] [stdout]    --> src/memory.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub unsafe fn alloc_align(&self, mut size: usize, align: usize) -> Option<Block> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `realloc`
[INFO] [stdout]    --> src/memory.rs:357:19
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub unsafe fn realloc(&self, mut block: Block, mut size: usize) -> Option<Block> {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]    --> src/memory.rs:408:19
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub unsafe fn dealloc(&mut self, block: Block) {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_aligned`
[INFO] [stdout]    --> src/memory.rs:459:15
[INFO] [stdout]     |
[INFO] [stdout] 459 | pub unsafe fn alloc_aligned(size: usize, align: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_type`
[INFO] [stdout]    --> src/memory.rs:486:15
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub unsafe fn alloc_type<T>() -> *mut T {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_size`
[INFO] [stdout]    --> src/memory.rs:491:15
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub unsafe fn alloc_size(ptr: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dealloc`
[INFO] [stdout]    --> src/memory.rs:496:15
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub unsafe fn dealloc(ptr: usize) {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `realloc`
[INFO] [stdout]    --> src/memory.rs:513:15
[INFO] [stdout]     |
[INFO] [stdout] 513 | pub unsafe fn realloc(ptr: usize, size: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `realloc_inplace`
[INFO] [stdout]    --> src/memory.rs:542:15
[INFO] [stdout]     |
[INFO] [stdout] 542 | pub unsafe fn realloc_inplace(ptr: usize, size: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `memory_used`
[INFO] [stdout]    --> src/memory.rs:551:8
[INFO] [stdout]     |
[INFO] [stdout] 551 | pub fn memory_used() -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `memory_free`
[INFO] [stdout]    --> src/memory.rs:561:8
[INFO] [stdout]     |
[INFO] [stdout] 561 | pub fn memory_free() -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/main.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let b = memory::alloc(i);
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `size` is never read
[INFO] [stdout]    --> src/memory.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         size = (1 << order) * MT_ATOM;
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:348:13
[INFO] [stdout]     |
[INFO] [stdout] 348 |         for i in 0..delta {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `level`
[INFO] [stdout]    --> src/memory.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let mut level = 0;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `size` is never read
[INFO] [stdout]    --> src/memory.rs:366:13
[INFO] [stdout]     |
[INFO] [stdout] 366 |             size = (1 << order) * MT_ATOM;
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:372:21
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 for i in 1..(-delta as usize) {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/memory.rs:380:21
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 for i in 1..delta {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:363:17
[INFO] [stdout]     |
[INFO] [stdout] 363 |             let mut level = 0;
[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: taking a mutable reference to a `const` item
[INFO] [stdout]    --> src/memory.rs:501:5
[INFO] [stdout]     |
[INFO] [stdout] 501 |     MT.dealloc(b);
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]     = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]     = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]    --> src/memory.rs:408:5
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub unsafe fn dealloc(&mut self, block: Block) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]    --> src/memory.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  | / pub const MT: MemoryTree = MemoryTree {
[INFO] [stdout] 27  | |     tree: StateTree {
[INFO] [stdout] 28  | |         arr: StateArray {
[INFO] [stdout] 29  | |             ptr: MT_PTR,
[INFO] [stdout] 30  | |         }
[INFO] [stdout] 31  | |     },
[INFO] [stdout] 32  | | };
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:523:17
[INFO] [stdout]     |
[INFO] [stdout] 523 |     if let Some(mut b) = MT.realloc(Block::from_ptr(ptr), size) {
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:552:9
[INFO] [stdout]     |
[INFO] [stdout] 552 |     let mut ret = 0;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/memory.rs:562:9
[INFO] [stdout]     |
[INFO] [stdout] 562 |     let mut ret = 1024 * 1024;
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub unsafe fn alloc(size: usize) -> usize {
[INFO] [stdout]     | ----------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 441 |     unsafe {
[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/memory.rs:467:5
[INFO] [stdout]     |
[INFO] [stdout] 459 | pub unsafe fn alloc_aligned(size: usize, align: usize) -> usize {
[INFO] [stdout]     | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] ...
[INFO] [stdout] 467 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:553:5
[INFO] [stdout]     |
[INFO] [stdout] 553 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/memory.rs:563:5
[INFO] [stdout]     |
[INFO] [stdout] 563 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MT_ROOT`
[INFO] [stdout]   --> src/memory.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub const MT_ROOT: usize = MT_LEAFS * MT_ATOM;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read`
[INFO] [stdout]   --> src/memory.rs:44:19
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub unsafe fn read(ptr: *const u8) -> u8 {
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pos`
[INFO] [stdout]    --> src/memory.rs:143:12
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn pos(&self, idx: usize, level: usize) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Left`
[INFO] [stdout]    --> src/memory.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     Left = 0,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Right`
[INFO] [stdout]    --> src/memory.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     Right = 1,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sibl`
[INFO] [stdout]    --> src/memory.rs:189:12
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn sibl(&self) -> Sibling {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parrent`
[INFO] [stdout]    --> src/memory.rs:207:12
[INFO] [stdout]     |
[INFO] [stdout] 207 |     pub fn parrent(&self) -> Block {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/memory.rs:216:12
[INFO] [stdout]     |
[INFO] [stdout] 216 |     pub fn size(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_pos`
[INFO] [stdout]    --> src/memory.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |     pub fn from_pos(pos: usize) -> Block {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_ptr`
[INFO] [stdout]    --> src/memory.rs:233:12
[INFO] [stdout]     |
[INFO] [stdout] 233 |     pub fn from_ptr(ptr: usize) -> Block {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `alloc_align`
[INFO] [stdout]    --> src/memory.rs:314:19
[INFO] [stdout]     |
[INFO] [stdout] 314 |     pub unsafe fn alloc_align(&self, mut size: usize, align: usize) -> Option<Block> {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `realloc`
[INFO] [stdout]    --> src/memory.rs:357:19
[INFO] [stdout]     |
[INFO] [stdout] 357 |     pub unsafe fn realloc(&self, mut block: Block, mut size: usize) -> Option<Block> {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dealloc`
[INFO] [stdout]    --> src/memory.rs:408:19
[INFO] [stdout]     |
[INFO] [stdout] 408 |     pub unsafe fn dealloc(&mut self, block: Block) {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_aligned`
[INFO] [stdout]    --> src/memory.rs:459:15
[INFO] [stdout]     |
[INFO] [stdout] 459 | pub unsafe fn alloc_aligned(size: usize, align: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_type`
[INFO] [stdout]    --> src/memory.rs:486:15
[INFO] [stdout]     |
[INFO] [stdout] 486 | pub unsafe fn alloc_type<T>() -> *mut T {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `alloc_size`
[INFO] [stdout]    --> src/memory.rs:491:15
[INFO] [stdout]     |
[INFO] [stdout] 491 | pub unsafe fn alloc_size(ptr: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dealloc`
[INFO] [stdout]    --> src/memory.rs:496:15
[INFO] [stdout]     |
[INFO] [stdout] 496 | pub unsafe fn dealloc(ptr: usize) {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `realloc`
[INFO] [stdout]    --> src/memory.rs:513:15
[INFO] [stdout]     |
[INFO] [stdout] 513 | pub unsafe fn realloc(ptr: usize, size: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `realloc_inplace`
[INFO] [stdout]    --> src/memory.rs:542:15
[INFO] [stdout]     |
[INFO] [stdout] 542 | pub unsafe fn realloc_inplace(ptr: usize, size: usize) -> usize {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `memory_used`
[INFO] [stdout]    --> src/memory.rs:551:8
[INFO] [stdout]     |
[INFO] [stdout] 551 | pub fn memory_used() -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `memory_free`
[INFO] [stdout]    --> src/memory.rs:561:8
[INFO] [stdout]     |
[INFO] [stdout] 561 | pub fn memory_free() -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core` has been stable since 1.6.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(core)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jemalloc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name jemalloc src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=eff230f1fcfe803e -C extra-filename=-eff230f1fcfe803e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c8a1dccbd023ab10e5837795c4b1673b72b069a38817b696fea9884b35de2430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a1dccbd023ab10e5837795c4b1673b72b069a38817b696fea9884b35de2430", kill_on_drop: false }`
[INFO] [stdout] c8a1dccbd023ab10e5837795c4b1673b72b069a38817b696fea9884b35de2430