[INFO] fetching crate qn 0.2.0...
[INFO] checking qn-0.2.0 against 1.95.0 for pr-155915
[INFO] extracting crate qn 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate qn 0.2.0
[INFO] finished tweaking crates.io crate qn 0.2.0
[INFO] tweaked toml for crates.io crate qn 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qn 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] [stderr]       Adding rand_chacha v0.3.1 (available: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.4.3
[INFO] [stderr]   Downloaded rayon v1.12.0
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7862a04e7878f24b9a46abb89f6db1f4fe2d08355931f7d54a2ecfc4fe451d3b
[INFO] running `Command { std: "docker" "start" "-a" "7862a04e7878f24b9a46abb89f6db1f4fe2d08355931f7d54a2ecfc4fe451d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7862a04e7878f24b9a46abb89f6db1f4fe2d08355931f7d54a2ecfc4fe451d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7862a04e7878f24b9a46abb89f6db1f4fe2d08355931f7d54a2ecfc4fe451d3b", kill_on_drop: false }`
[INFO] [stdout] 7862a04e7878f24b9a46abb89f6db1f4fe2d08355931f7d54a2ecfc4fe451d3b
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7f1ff91768f778a54408469994308206ff5cb61c6be3c3e99c97645452268fd
[INFO] running `Command { std: "docker" "start" "-a" "a7f1ff91768f778a54408469994308206ff5cb61c6be3c3e99c97645452268fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking clap_lex v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.8.10
[INFO] [stderr]     Checking anstyle v1.0.14
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking rayon v1.12.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking clap v4.6.1
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.6
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking qn v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/qubit.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |         stm: &'a mut System<T>,
[INFO] [stdout]    |               -- the lifetime is named here
[INFO] [stdout] 64 |         index: u16,
[INFO] [stdout] 65 |     ) -> Option<Qubit<'_, T>> {
[INFO] [stdout]    |                       ^^ the same 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 65 -     ) -> Option<Qubit<'_, T>> {
[INFO] [stdout] 65 +     ) -> Option<Qubit<'a, T>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/qubit.rs:87:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |         stm: &'a mut System<T>,
[INFO] [stdout]    |               -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 87 |     ) -> Option<(Qubit<'_, T>, Qubit<'_, T>)> {
[INFO] [stdout]    |                        ^^            ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the same 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 87 -     ) -> Option<(Qubit<'_, T>, Qubit<'_, T>)> {
[INFO] [stdout] 87 +     ) -> Option<(Qubit<'a, T>, Qubit<'a, T>)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/my_benchmark.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd)]
[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 `qn` (bench "my_benchmark") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/qubit.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 63 |         stm: &'a mut System<T>,
[INFO] [stdout]    |               -- the lifetime is named here
[INFO] [stdout] 64 |         index: u16,
[INFO] [stdout] 65 |     ) -> Option<Qubit<'_, T>> {
[INFO] [stdout]    |                       ^^ the same 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 65 -     ) -> Option<Qubit<'_, T>> {
[INFO] [stdout] 65 +     ) -> Option<Qubit<'a, T>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/qubit.rs:87:24
[INFO] [stdout]    |
[INFO] [stdout] 84 |         stm: &'a mut System<T>,
[INFO] [stdout]    |               -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 87 |     ) -> Option<(Qubit<'_, T>, Qubit<'_, T>)> {
[INFO] [stdout]    |                        ^^            ^^ the same lifetime is elided here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the same 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: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 87 -     ) -> Option<(Qubit<'_, T>, Qubit<'_, T>)> {
[INFO] [stdout] 87 +     ) -> Option<(Qubit<'a, T>, Qubit<'a, T>)> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7f1ff91768f778a54408469994308206ff5cb61c6be3c3e99c97645452268fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f1ff91768f778a54408469994308206ff5cb61c6be3c3e99c97645452268fd", kill_on_drop: false }`
[INFO] [stdout] a7f1ff91768f778a54408469994308206ff5cb61c6be3c3e99c97645452268fd
