[INFO] fetching crate pstd 1.0.3...
[INFO] testing pstd-1.0.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate pstd 1.0.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate pstd 1.0.3
[INFO] finished tweaking crates.io crate pstd 1.0.3
[INFO] tweaked toml for crates.io crate pstd 1.0.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pstd 1.0.3 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pstd 1.0.3 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a3af000abb082cd4d347bdddbc77c85d56b3d9097ba6b3f288d8155899a398b
[INFO] running `Command { std: "docker" "start" "-a" "3a3af000abb082cd4d347bdddbc77c85d56b3d9097ba6b3f288d8155899a398b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a3af000abb082cd4d347bdddbc77c85d56b3d9097ba6b3f288d8155899a398b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3af000abb082cd4d347bdddbc77c85d56b3d9097ba6b3f288d8155899a398b", kill_on_drop: false }`
[INFO] [stdout] 3a3af000abb082cd4d347bdddbc77c85d56b3d9097ba6b3f288d8155899a398b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77025dd344fa15cd34c7c37dd2cba2b6ea4532ab1dffaa14f7f044ee28f3d1b7
[INFO] running `Command { std: "docker" "start" "-a" "77025dd344fa15cd34c7c37dd2cba2b6ea4532ab1dffaa14f7f044ee28f3d1b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pstd v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:588:17
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter(&self) -> IterPairVec<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter(&self) -> IterPairVec<'_, K, V> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:597:18
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn range(&self, x: usize, y: usize) -> IterPairVec<K, V> {
[INFO] [stdout]     |                  ^^^^^                         ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn range(&self, x: usize, y: usize) -> IterPairVec<'_, K, V> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:607:21
[INFO] [stdout]     |
[INFO] [stdout] 607 |     pub fn iter_mut(&mut self) -> IterMutPairVec<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 607 |     pub fn iter_mut(&mut self) -> IterMutPairVec<'_, K, V> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:617:22
[INFO] [stdout]     |
[INFO] [stdout] 617 |     pub fn range_mut(&mut self, x: usize, y: usize) -> IterMutPairVec<K, V> {
[INFO] [stdout]     |                      ^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 617 |     pub fn range_mut(&mut self, x: usize, y: usize) -> IterMutPairVec<'_, K, V> {
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "77025dd344fa15cd34c7c37dd2cba2b6ea4532ab1dffaa14f7f044ee28f3d1b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77025dd344fa15cd34c7c37dd2cba2b6ea4532ab1dffaa14f7f044ee28f3d1b7", kill_on_drop: false }`
[INFO] [stdout] 77025dd344fa15cd34c7c37dd2cba2b6ea4532ab1dffaa14f7f044ee28f3d1b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51d617e5f3774891c84cae544bcf9f3e388a70db63a45cbc917601bf4f211beb
[INFO] running `Command { std: "docker" "start" "-a" "51d617e5f3774891c84cae544bcf9f3e388a70db63a45cbc917601bf4f211beb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling cc v1.0.98
[INFO] [stderr]    Compiling either v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling plotters-backend v0.3.6
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling cap v0.1.2
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:588:17
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter(&self) -> IterPairVec<K, V> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter(&self) -> IterPairVec<'_, K, V> {
[INFO] [stdout]     |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:597:18
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn range(&self, x: usize, y: usize) -> IterPairVec<K, V> {
[INFO] [stdout]     |                  ^^^^^                         ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 597 |     pub fn range(&self, x: usize, y: usize) -> IterPairVec<'_, K, V> {
[INFO] [stdout]     |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:607:21
[INFO] [stdout]     |
[INFO] [stdout] 607 |     pub fn iter_mut(&mut self) -> IterMutPairVec<K, V> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 607 |     pub fn iter_mut(&mut self) -> IterMutPairVec<'_, K, V> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/collections/btree_map/vecs.rs:617:22
[INFO] [stdout]     |
[INFO] [stdout] 617 |     pub fn range_mut(&mut self, x: usize, y: usize) -> IterMutPairVec<K, V> {
[INFO] [stdout]     |                      ^^^^^^^^^                         ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 617 |     pub fn range_mut(&mut self, x: usize, y: usize) -> IterMutPairVec<'_, K, V> {
[INFO] [stdout]     |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling plotters-svg v0.3.6
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling clap_builder v4.5.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.38
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.6
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling clap v4.5.4
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling mimalloc v0.1.42
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling pstd v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(test, feature(btree_cursors, assert_matches))]
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pstd` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "51d617e5f3774891c84cae544bcf9f3e388a70db63a45cbc917601bf4f211beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d617e5f3774891c84cae544bcf9f3e388a70db63a45cbc917601bf4f211beb", kill_on_drop: false }`
[INFO] [stdout] 51d617e5f3774891c84cae544bcf9f3e388a70db63a45cbc917601bf4f211beb
