[INFO] cloning repository https://github.com/mrazorvin/rust-ivec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrazorvin/rust-ivec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrazorvin%2Frust-ivec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrazorvin%2Frust-ivec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7cd61d2f43b23672717ad47ab2857a0513d1a3e
[INFO] checking mrazorvin/rust-ivec against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrazorvin%2Frust-ivec" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrazorvin/rust-ivec on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrazorvin/rust-ivec
[INFO] finished tweaking git repo https://github.com/mrazorvin/rust-ivec
[INFO] tweaked toml for git repo https://github.com/mrazorvin/rust-ivec written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mrazorvin/rust-ivec 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7de14f29b14676aabcea1e96f1c89587de72c59e871de154eedbb8599803cd07
[INFO] running `Command { std: "docker" "start" "-a" "7de14f29b14676aabcea1e96f1c89587de72c59e871de154eedbb8599803cd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7de14f29b14676aabcea1e96f1c89587de72c59e871de154eedbb8599803cd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de14f29b14676aabcea1e96f1c89587de72c59e871de154eedbb8599803cd07", kill_on_drop: false }`
[INFO] [stdout] 7de14f29b14676aabcea1e96f1c89587de72c59e871de154eedbb8599803cd07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bf714f3f71ca071cade1da5ff490038d9f31ddfe353c4184314582b464633fc
[INFO] running `Command { std: "docker" "start" "-a" "4bf714f3f71ca071cade1da5ff490038d9f31ddfe353c4184314582b464633fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling ahash v0.8.10
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking rust-ivec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> src/sync_vec.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sync_vec.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let next_raw_len = (chunk.raw_len.fetch_add(1, Ordering::Release) + 1);
[INFO] [stdout]    |                                ^                                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -             let next_raw_len = (chunk.raw_len.fetch_add(1, Ordering::Release) + 1);
[INFO] [stdout] 67 +             let next_raw_len = chunk.raw_len.fetch_add(1, Ordering::Release) + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::panic`
[INFO] [stdout]  --> src/sync_vec.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::panic;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sync_vec.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 |             let next_raw_len = (chunk.raw_len.fetch_add(1, Ordering::Release) + 1);
[INFO] [stdout]    |                                ^                                                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -             let next_raw_len = (chunk.raw_len.fetch_add(1, Ordering::Release) + 1);
[INFO] [stdout] 67 +             let next_raw_len = chunk.raw_len.fetch_add(1, Ordering::Release) + 1;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let (x, y) = x.split_at_mut(5);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let (x, y) = x.split_at_mut(5);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear_prev_snapshots` is never used
[INFO] [stdout]    --> src/ivec.rs:193:19
[INFO] [stdout]     |
[INFO] [stdout] 55  | impl<T> IVec<T> {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub unsafe fn clear_prev_snapshots(&self) -> Option<usize> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SyncVec` is never constructed
[INFO] [stdout]   --> src/sync_vec.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SyncVec<T> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/sync_vec.rs:33:14
[INFO] [stdout]     |
[INFO] [stdout] 32  | impl<T> SyncVec<T> {
[INFO] [stdout]     | ------------------ associated items in this implementation
[INFO] [stdout] 33  |     const fn new() -> Self {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38  |     pub fn size(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43  |     pub fn get(&self, index: usize) -> Option<&T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 53  |     pub fn push(&self, value: T) -> &T {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 85  |     pub fn chunks<'a>(&'a self) -> ChunksIterator<'a, T> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94  |     pub unsafe fn chunks_size(&self) -> usize {
[INFO] [stdout]     |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     pub unsafe fn reset(&self) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub unsafe fn get_unchecked(&self, index: usize) -> &T {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_unchecked`, and `try_init_next_chunk` are never used
[INFO] [stdout]    --> src/sync_vec.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 156 | impl<T> SyncVecChunk<T> {
[INFO] [stdout]     | ----------------------- associated items in this implementation
[INFO] [stdout] 157 |     const unsafe fn new() -> SyncVecChunk<T> {
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 170 |     unsafe fn get_unchecked(&self, index: usize) -> &T {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 174 |     unsafe fn try_init_next_chunk(&self) -> *mut SyncVecChunk<T> {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunksIterator` is never constructed
[INFO] [stdout]    --> src/sync_vec.rs:193:8
[INFO] [stdout]     |
[INFO] [stdout] 193 | struct ChunksIterator<'a, T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]    --> src/sync_vec.rs:220:5
[INFO] [stdout]     |
[INFO] [stdout] 218 | struct ChunkIteratorItem<'a, T> {
[INFO] [stdout]     |        ----------------- field in this struct
[INFO] [stdout] 219 |     chunk: &'a SyncVecChunk<T>,
[INFO] [stdout] 220 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]    --> src/sync_vec.rs:225:12
[INFO] [stdout]     |
[INFO] [stdout] 223 | impl<'a, T> ChunkIteratorItem<'a, T> {
[INFO] [stdout]     | ------------------------------------ method in this implementation
[INFO] [stdout] 224 |     #[inline]
[INFO] [stdout] 225 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ZipRangeIterator` is never constructed
[INFO] [stdout]    --> src/sync_vec.rs:240:8
[INFO] [stdout]     |
[INFO] [stdout] 240 | struct ZipRangeIterator {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `add` are never used
[INFO] [stdout]    --> src/sync_vec.rs:247:12
[INFO] [stdout]     |
[INFO] [stdout] 246 | impl ZipRangeIterator {
[INFO] [stdout]     | --------------------- associated items in this implementation
[INFO] [stdout] 247 |     pub fn new() -> ZipRangeIterator {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 252 |     pub fn add<'a, T>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first`, `start`, and `end` are never read
[INFO] [stdout]    --> src/sync_vec.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 289 | struct ZipRangeChunk {
[INFO] [stdout]     |        ------------- fields in this struct
[INFO] [stdout] 290 |     first: bool,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 291 |     start: usize,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 292 |     end: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `complete` and `progress` are never used
[INFO] [stdout]    --> src/sync_vec.rs:297:12
[INFO] [stdout]     |
[INFO] [stdout] 295 | impl ZipRangeChunk {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] 296 |     #[inline]
[INFO] [stdout] 297 |     pub fn complete(self) -> std::ops::Range<usize> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 302 |     pub fn progress<'b, T>(
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:54:10
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let (x, y) = x.split_at_mut(5);
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let (x, y) = x.split_at_mut(5);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_unchecked` is never used
[INFO] [stdout]    --> src/sync_vec.rs:170:15
[INFO] [stdout]     |
[INFO] [stdout] 156 | impl<T> SyncVecChunk<T> {
[INFO] [stdout]     | ----------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 170 |     unsafe fn get_unchecked(&self, index: usize) -> &T {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "4bf714f3f71ca071cade1da5ff490038d9f31ddfe353c4184314582b464633fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf714f3f71ca071cade1da5ff490038d9f31ddfe353c4184314582b464633fc", kill_on_drop: false }`
[INFO] [stdout] 4bf714f3f71ca071cade1da5ff490038d9f31ddfe353c4184314582b464633fc