[INFO] fetching crate harper 0.0.2...
[INFO] testing harper-0.0.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate harper 0.0.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate harper 0.0.2
[INFO] finished tweaking crates.io crate harper 0.0.2
[INFO] tweaked toml for crates.io crate harper 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate harper 0.0.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 171 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v5.5.3 (available: v6.1.0)
[INFO] [stderr]       Adding mlua v0.9.9 (available: v0.11.4)
[INFO] [stderr]       Adding pulldown-cmark v0.10.3 (available: v0.13.0)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.1.1)
[INFO] [stderr]       Adding svgbob v0.6.6 (available: v0.6.7)
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c296b7a63119a15eeaf493413d054c97c62703886d42ce7da23e87f89bbdb66d
[INFO] running `Command { std: "docker" "start" "-a" "c296b7a63119a15eeaf493413d054c97c62703886d42ce7da23e87f89bbdb66d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c296b7a63119a15eeaf493413d054c97c62703886d42ce7da23e87f89bbdb66d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c296b7a63119a15eeaf493413d054c97c62703886d42ce7da23e87f89bbdb66d", kill_on_drop: false }`
[INFO] [stdout] c296b7a63119a15eeaf493413d054c97c62703886d42ce7da23e87f89bbdb66d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 510fb30d0a6b5961d5e7eccf7bd2df19f1fb792bb94f4dc6a5dc308b1d1cb9be
[INFO] running `Command { std: "docker" "start" "-a" "510fb30d0a6b5961d5e7eccf7bd2df19f1fb792bb94f4dc6a5dc308b1d1cb9be", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
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[INFO] [stderr]    Compiling rand_core v0.6.4
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[INFO] [stderr]    Compiling approx v0.5.1
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[INFO] [stderr]    Compiling phf_macros v0.11.3
[INFO] [stderr]    Compiling jwalk v0.8.1
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[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling simba v0.7.3
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling grass_compiler v0.13.4
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling jss v0.5.1
[INFO] [stderr]    Compiling onig v6.5.1
[INFO] [stderr]    Compiling sauron-core v0.45.2
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling plist v1.8.0
[INFO] [stderr]    Compiling unified-minijinja v0.0.2
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling sauron v0.45.2
[INFO] [stderr]    Compiling syntect v5.3.0
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling nalgebra v0.30.1
[INFO] [stderr]    Compiling grass v0.13.4
[INFO] [stderr]    Compiling parry2d v0.8.0
[INFO] [stderr]    Compiling svgbob v0.6.6
[INFO] [stderr]    Compiling svgbobdoc v0.3.0
[INFO] [stderr]    Compiling harper v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::error`
[INFO] [stdout]  --> src/markdown/markdown.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::error;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | /     fn drive_unindexed<C>(self, consumer: C) -> C::Result
[INFO] [stdout] 157 | |         where C: UnindexedConsumer<Self::Item>
[INFO] [stdout]     | |______________________________________________^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&'a list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `ParIter<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub struct ParIter<'a, T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::ParallelIterator`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:356:37
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub trait ParallelIterator: Sized + Send {
[INFO] [stdout]     |                                     ^^^^ required by this bound in `ParallelIterator`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl<'a, T: Sync + std::marker::Send> ParallelIterator for ParIter<'a, T> {
[INFO] [stdout]     |                  +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:153:40
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl<'a, T: Sync> ParallelIterator for ParIter<'a, T> {
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&'a list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `ParIter<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub struct ParIter<'a, T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::ParallelIterator`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:356:37
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub trait ParallelIterator: Sized + Send {
[INFO] [stdout]     |                                     ^^^^ required by this bound in `ParallelIterator`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl<'a, T: Sync + std::marker::Send> ParallelIterator for ParIter<'a, T> {
[INFO] [stdout]     |                  +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:168:5
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn drive<C: Consumer<Self::Item>>(self, consumer: C) -> C::Result {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'_, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `ParIter<'_, T>`
[INFO] [stdout]    --> src/value/list.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub struct ParIter<'a, T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::ParallelIterator`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:356:37
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub trait ParallelIterator: Sized + Send {
[INFO] [stdout]     |                                     ^^^^ required by this bound in `ParallelIterator`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl<T: Sync + std::marker::Send> IndexedParallelIterator for ParIter<'_, T> {
[INFO] [stdout]     |              +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 172 |     fn with_producer<CB: ProducerCallback<Self::Item>>(self, callback: CB) -> CB::Output {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'_, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `ParIter<'_, T>`
[INFO] [stdout]    --> src/value/list.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub struct ParIter<'a, T> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::ParallelIterator`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:356:37
[INFO] [stdout]     |
[INFO] [stdout] 356 | pub trait ParallelIterator: Sized + Send {
[INFO] [stdout]     |                                     ^^^^ required by this bound in `ParallelIterator`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl<T: Sync + std::marker::Send> IndexedParallelIterator for ParIter<'_, T> {
[INFO] [stdout]     |              +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]     --> src/value/list.rs:163:43
[INFO] [stdout]      |
[INFO] [stdout]  163 | impl<T: Sync> IndexedParallelIterator for ParIter<'_, T> {
[INFO] [stdout]      |                                           ^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]      |
[INFO] [stdout]      = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]      = note: 1 redundant requirement hidden
[INFO] [stdout]      = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]      |
[INFO] [stdout]   14 | pub struct Vec<T> {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]      |
[INFO] [stdout]   57 | pub struct Vec<T> {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]     --> src/value/list.rs:6:12
[INFO] [stdout]      |
[INFO] [stdout]    6 | pub struct List<T> {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout]      = note: required for `&list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'_, T>`
[INFO] [stdout]     --> src/value/list.rs:67:12
[INFO] [stdout]      |
[INFO] [stdout]   67 | pub struct Slice<'a, T> {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `ParIter<'_, T>`
[INFO] [stdout]     --> src/value/list.rs:149:12
[INFO] [stdout]      |
[INFO] [stdout]  149 | pub struct ParIter<'a, T> {
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      = note: required for `ParIter<'_, T>` to implement `rayon::iter::ParallelIterator`
[INFO] [stdout] note: required by a bound in `rayon::iter::IndexedParallelIterator`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/mod.rs:2439:36
[INFO] [stdout]      |
[INFO] [stdout] 2439 | pub trait IndexedParallelIterator: ParallelIterator {
[INFO] [stdout]      |                                    ^^^^^^^^^^^^^^^^ required by this bound in `IndexedParallelIterator`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]      |
[INFO] [stdout]  163 | impl<T: Sync + std::marker::Send> IndexedParallelIterator for ParIter<'_, T> {
[INFO] [stdout]      |              +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:186:5
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&'a list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `IterProducer<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct IterProducer<'a, T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::plumbing::Producer`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/plumbing/mod.rs:56:21
[INFO] [stdout]     |
[INFO] [stdout]  56 | pub trait Producer: Send + Sized {
[INFO] [stdout]     |                     ^^^^ required by this bound in `Producer`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 181 | impl<'a, T: Sync + std::marker::Send> Producer for IterProducer<'a, T> {
[INFO] [stdout]     |                  +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `T` cannot be sent between threads safely
[INFO] [stdout]    --> src/value/list.rs:181:32
[INFO] [stdout]     |
[INFO] [stdout] 181 | impl<'a, T: Sync> Producer for IterProducer<'a, T> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^ `T` cannot be sent between threads safely
[INFO] [stdout]     |
[INFO] [stdout]     = note: required for `boxcar::vec::raw::Entry<T>` to implement `Sync`
[INFO] [stdout]     = note: 1 redundant requirement hidden
[INFO] [stdout]     = note: required for `Buckets<boxcar::vec::raw::Entry<T>, 58>` to implement `Sync`
[INFO] [stdout] note: required because it appears within the type `boxcar::vec::raw::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/raw.rs:14:12
[INFO] [stdout]     |
[INFO] [stdout]  14 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `boxcar::Vec<T>`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/boxcar-0.2.14/src/vec/mod.rs:57:12
[INFO] [stdout]     |
[INFO] [stdout]  57 | pub struct Vec<T> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] note: required because it appears within the type `list::List<T>`
[INFO] [stdout]    --> src/value/list.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout]   6 | pub struct List<T> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout]     = note: required for `&'a list::List<T>` to implement `Send`
[INFO] [stdout] note: required because it appears within the type `Slice<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:67:12
[INFO] [stdout]     |
[INFO] [stdout]  67 | pub struct Slice<'a, T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] note: required because it appears within the type `IterProducer<'a, T>`
[INFO] [stdout]    --> src/value/list.rs:177:8
[INFO] [stdout]     |
[INFO] [stdout] 177 | struct IterProducer<'a, T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `rayon::iter::plumbing::Producer`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rayon-1.11.0/src/iter/plumbing/mod.rs:56:21
[INFO] [stdout]     |
[INFO] [stdout]  56 | pub trait Producer: Send + Sized {
[INFO] [stdout]     |                     ^^^^ required by this bound in `Producer`
[INFO] [stdout] help: consider further restricting type parameter `T` with trait `Send`
[INFO] [stdout]     |
[INFO] [stdout] 181 | impl<'a, T: Sync + std::marker::Send> Producer for IterProducer<'a, T> {
[INFO] [stdout]     |                  +++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `harper` (lib) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "510fb30d0a6b5961d5e7eccf7bd2df19f1fb792bb94f4dc6a5dc308b1d1cb9be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "510fb30d0a6b5961d5e7eccf7bd2df19f1fb792bb94f4dc6a5dc308b1d1cb9be", kill_on_drop: false }`
[INFO] [stdout] 510fb30d0a6b5961d5e7eccf7bd2df19f1fb792bb94f4dc6a5dc308b1d1cb9be
