[INFO] fetching crate steel-core 0.8.3...
[INFO] checking steel-core-0.8.3 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate steel-core 0.8.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate steel-core 0.8.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate steel-core 0.8.3
[INFO] tweaked toml for crates.io crate steel-core 0.8.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate steel-core 0.8.3 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate steel-core 0.8.3 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98
[INFO] running `Command { std: "docker" "start" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `once_cell::sync::Lazy`
[INFO] [stdout]  --> src/env.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use once_cell::sync::Lazy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContinuationMark`
[INFO] [stdout]   --> src/rvals.rs:24:81
[INFO] [stdout]    |
[INFO] [stdout] 24 |             threads::closure_into_serializable, BuiltInSignature, Continuation, ContinuationMark,
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::RwLock`
[INFO] [stdout]   --> src/rvals.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use parking_lot::RwLock;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::env::SharedVectorWrapper`
[INFO] [stdout]  --> src/steel_vm/vm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::env::SharedVectorWrapper;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]     --> src/compiler/passes/analysis.rs:2453:42
[INFO] [stdout]      |
[INFO] [stdout] 2453 |                 self.count = std::usize::MAX;
[INFO] [stdout]      |                                          ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]     --> src/compiler/passes/analysis.rs:2494:38
[INFO] [stdout]      |
[INFO] [stdout] 2494 |         if self.count != std::usize::MAX {
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `once_cell::sync::Lazy`
[INFO] [stdout]  --> src/env.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use once_cell::sync::Lazy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ContinuationMark`
[INFO] [stdout]   --> src/rvals.rs:24:81
[INFO] [stdout]    |
[INFO] [stdout] 24 |             threads::closure_into_serializable, BuiltInSignature, Continuation, ContinuationMark,
[INFO] [stdout]    |                                                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::RwLock`
[INFO] [stdout]   --> src/rvals.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 | use parking_lot::RwLock;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::env::SharedVectorWrapper`
[INFO] [stdout]  --> src/steel_vm/vm.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::env::SharedVectorWrapper;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]     --> src/compiler/passes/analysis.rs:2453:42
[INFO] [stdout]      |
[INFO] [stdout] 2453 |                 self.count = std::usize::MAX;
[INFO] [stdout]      |                                          ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::usize::MAX`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]     --> src/compiler/passes/analysis.rs:2494:38
[INFO] [stdout]      |
[INFO] [stdout] 2494 |         if self.count != std::usize::MAX {
[INFO] [stdout]      |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/rerrs.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         SteelErr::_new(v.into())
[INFO] [stdout]    |                        - ^^^^ unreachable call
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/rerrs.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |             message: v.to_string(),
[INFO] [stdout]     |                      - ^^^^^^^^^ unreachable call
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      any code following this expression is unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]   --> src/rerrs.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |         SteelErr::_new(v.into())
[INFO] [stdout]    |                        - ^^^^ unreachable call
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable call
[INFO] [stdout]    --> src/rerrs.rs:109:24
[INFO] [stdout]     |
[INFO] [stdout] 109 |             message: v.to_string(),
[INFO] [stdout]     |                      - ^^^^^^^^^ unreachable call
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      any code following this expression is unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsRefSteelVal`
[INFO] [stdout]   --> src/steel_vm/vm/threads.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |         AsRefMutSteelVal, AsRefSteelVal as _, Custom, HeapSerializer, NativeRefSpec,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsRefSteelVal`
[INFO] [stdout]   --> src/steel_vm/vm/threads.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |         AsRefMutSteelVal, AsRefSteelVal as _, Custom, HeapSerializer, NativeRefSpec,
[INFO] [stdout]    |                           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SharedVectorWrapper` is never constructed
[INFO] [stdout]  --> src/env.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct SharedVectorWrapper(pub AtomicSharedVector<SteelVal>);
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_idx` and `repl_define_idx` are never used
[INFO] [stdout]   --> src/env.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl SharedVectorWrapper {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout]  9 |     pub fn set_idx(&mut self, idx: usize, val: SteelVal) -> SteelVal {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn repl_define_idx(&mut self, idx: usize, val: SteelVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `extract` and `add_root_value` are never used
[INFO] [stdout]    --> src/env.rs:70:12
[INFO] [stdout]     |
[INFO] [stdout]  69 | impl Env {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout]  70 |     pub fn extract(&self, idx: usize) -> Option<SteelVal> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn add_root_value(&mut self, idx: usize, val: SteelVal) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call_per_ctx` is never used
[INFO] [stdout]    --> src/steel_vm/vm.rs:590:26
[INFO] [stdout]     |
[INFO] [stdout] 521 | impl Synchronizer {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 590 |     pub(crate) unsafe fn call_per_ctx(&self, mut func: impl FnMut(&mut SteelThread)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CellPointer` is never used
[INFO] [stdout]    --> src/values/lists.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub(crate) type CellPointer<T> = im_lists::list::RawCell<T, PointerType, 4, 2, DropHandlerChoice>;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SharedVectorWrapper` is never constructed
[INFO] [stdout]  --> src/env.rs:6:19
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct SharedVectorWrapper(pub AtomicSharedVector<SteelVal>);
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_idx` and `repl_define_idx` are never used
[INFO] [stdout]   --> src/env.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl SharedVectorWrapper {
[INFO] [stdout]    | ------------------------ methods in this implementation
[INFO] [stdout]  9 |     pub fn set_idx(&mut self, idx: usize, val: SteelVal) -> SteelVal {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn repl_define_idx(&mut self, idx: usize, val: SteelVal) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `extract` and `add_root_value` are never used
[INFO] [stdout]    --> src/env.rs:70:12
[INFO] [stdout]     |
[INFO] [stdout]  69 | impl Env {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout]  70 |     pub fn extract(&self, idx: usize) -> Option<SteelVal> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 142 |     pub fn add_root_value(&mut self, idx: usize, val: SteelVal) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call_per_ctx` is never used
[INFO] [stdout]    --> src/steel_vm/vm.rs:590:26
[INFO] [stdout]     |
[INFO] [stdout] 521 | impl Synchronizer {
[INFO] [stdout]     | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 590 |     pub(crate) unsafe fn call_per_ctx(&self, mut func: impl FnMut(&mut SteelThread)) {
[INFO] [stdout]     |                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CellPointer` is never used
[INFO] [stdout]    --> src/values/lists.rs:249:17
[INFO] [stdout]     |
[INFO] [stdout] 249 | pub(crate) type CellPointer<T> = im_lists::list::RawCell<T, PointerType, 4, 2, DropHandlerChoice>;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `crossbeam-queue`
[INFO] [stderr]   --> Cargo.toml:64:15
[INFO] [stderr]    |
[INFO] [stderr] 64 | [dependencies.crossbeam-queue]
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `crossbeam-queue`
[INFO] [stderr] warning: `steel-core` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.57s
[INFO] running `Command { std: "docker" "inspect" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98", kill_on_drop: false }`
[INFO] [stdout] 3c6e0599ed157f97f31183667ae5213429cc466c95e70cf6451acf8f70e2fc98
