[INFO] fetching crate quizx 0.3.0...
[INFO] testing quizx-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate quizx 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate quizx 0.3.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate quizx 0.3.0
[INFO] tweaked toml for crates.io crate quizx 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate quizx 0.3.0 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 quizx 0.3.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 878d6c8eb72047c8e50c8fda2e40ef743dbb2d44784bad3a18060ce31994acd0
[INFO] running `Command { std: "docker" "start" "-a" "878d6c8eb72047c8e50c8fda2e40ef743dbb2d44784bad3a18060ce31994acd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "878d6c8eb72047c8e50c8fda2e40ef743dbb2d44784bad3a18060ce31994acd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878d6c8eb72047c8e50c8fda2e40ef743dbb2d44784bad3a18060ce31994acd0", kill_on_drop: false }`
[INFO] [stdout] 878d6c8eb72047c8e50c8fda2e40ef743dbb2d44784bad3a18060ce31994acd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1e8634338e29027d3ed640c9f8b4381032ba187d0906d9921a917a8bfc63ae71
[INFO] running `Command { std: "docker" "start" "-a" "1e8634338e29027d3ed640c9f8b4381032ba187d0906d9921a917a8bfc63ae71", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rand v0.8.5
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[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling ndarray v0.16.1
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[INFO] [stderr]    Compiling openqasm v0.1.2
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling quizx v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extract.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn extractor(&mut self) -> Extractor<Self> {
[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] 52 |     fn extractor(&mut self) -> Extractor<'_, Self> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/params.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn iter(&self) -> ParityIter {
[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] 72 |     pub fn iter(&self) -> ParityIter<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/params.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> ExprIter {
[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] 190 |     pub fn iter(&self) -> ExprIter<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:125:24
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<A, IxDyn>, ArrayViewMut<A, IxDyn>);
[INFO] [stdout]     |                        ^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |                        |
[INFO] [stdout]     |                        |                        the same lifetime is hidden here
[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] 125 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<'_, A, IxDyn>, ArrayViewMut<'_, A, IxDyn>);
[INFO] [stdout]     |                                                              +++                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:180:24
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<A, IxDyn>, ArrayViewMut<A, IxDyn>) {
[INFO] [stdout]     |                        ^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |                        |
[INFO] [stdout]     |                        |                        the same lifetime is hidden here
[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] 180 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<'_, A, IxDyn>, ArrayViewMut<'_, A, IxDyn>) {
[INFO] [stdout]     |                                                              +++                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 16s
[INFO] running `Command { std: "docker" "inspect" "1e8634338e29027d3ed640c9f8b4381032ba187d0906d9921a917a8bfc63ae71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8634338e29027d3ed640c9f8b4381032ba187d0906d9921a917a8bfc63ae71", kill_on_drop: false }`
[INFO] [stdout] 1e8634338e29027d3ed640c9f8b4381032ba187d0906d9921a917a8bfc63ae71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 337f667b5f3a7dc740a41b8b1453f819cc9f4c7867e950012cec3116fe57686d
[INFO] running `Command { std: "docker" "start" "-a" "337f667b5f3a7dc740a41b8b1453f819cc9f4c7867e950012cec3116fe57686d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling string_cache v0.8.9
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling predicates-core v1.0.9
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling float-cmp v0.10.0
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling termtree v0.5.1
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]    Compiling ndarray v0.16.1
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling predicates-tree v1.0.12
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling lalrpop-util v0.19.12
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling lalrpop v0.19.12
[INFO] [stderr]    Compiling bstr v1.12.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling rstest_macros v0.23.0
[INFO] [stderr]    Compiling env_logger v0.11.8
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.6.0
[INFO] [stderr]    Compiling rstest v0.23.0
[INFO] [stderr]    Compiling openqasm v0.1.2
[INFO] [stderr]    Compiling quizx v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read `src/../../test_files/4-qubit-unitary.qgraph`: No such file or directory (os error 2)
[INFO] [stdout]    --> src/json.rs:389:40
[INFO] [stdout]     |
[INFO] [stdout] 389 |     const TEST_JSON_4Q_UNITARY: &str = include_str!("../../test_files/4-qubit-unitary.qgraph");
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extract.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     fn extractor(&mut self) -> Extractor<Self> {
[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] 52 |     fn extractor(&mut self) -> Extractor<'_, Self> {
[INFO] [stdout]    |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/params.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn iter(&self) -> ParityIter {
[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] 72 |     pub fn iter(&self) -> ParityIter<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/params.rs:190:17
[INFO] [stdout]     |
[INFO] [stdout] 190 |     pub fn iter(&self) -> ExprIter {
[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] 190 |     pub fn iter(&self) -> ExprIter<'_> {
[INFO] [stdout]     |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:125:24
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<A, IxDyn>, ArrayViewMut<A, IxDyn>);
[INFO] [stdout]     |                        ^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |                        |
[INFO] [stdout]     |                        |                        the same lifetime is hidden here
[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] 125 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<'_, A, IxDyn>, ArrayViewMut<'_, A, IxDyn>);
[INFO] [stdout]     |                                                              +++                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tensor.rs:180:24
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<A, IxDyn>, ArrayViewMut<A, IxDyn>) {
[INFO] [stdout]     |                        ^^^^^^^^^                ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |                        |
[INFO] [stdout]     |                        |                        the same lifetime is hidden here
[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] 180 |     fn slice_qubit_mut(&mut self, q: usize) -> (ArrayViewMut<'_, A, IxDyn>, ArrayViewMut<'_, A, IxDyn>) {
[INFO] [stdout]     |                                                              +++                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quizx` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "337f667b5f3a7dc740a41b8b1453f819cc9f4c7867e950012cec3116fe57686d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "337f667b5f3a7dc740a41b8b1453f819cc9f4c7867e950012cec3116fe57686d", kill_on_drop: false }`
[INFO] [stdout] 337f667b5f3a7dc740a41b8b1453f819cc9f4c7867e950012cec3116fe57686d
