[INFO] fetching crate portal-solutions-rv-emit 0.0.2...
[INFO] testing portal-solutions-rv-emit-0.0.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate portal-solutions-rv-emit 0.0.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate portal-solutions-rv-emit 0.0.2
[INFO] finished tweaking crates.io crate portal-solutions-rv-emit 0.0.2
[INFO] tweaked toml for crates.io crate portal-solutions-rv-emit 0.0.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate portal-solutions-rv-emit 0.0.2 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate portal-solutions-rv-emit 0.0.2 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ced41cf18615fe9d4334e05a75300b916c24335031088650193bc5c38246e06b
[INFO] running `Command { std: "docker" "start" "-a" "ced41cf18615fe9d4334e05a75300b916c24335031088650193bc5c38246e06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ced41cf18615fe9d4334e05a75300b916c24335031088650193bc5c38246e06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ced41cf18615fe9d4334e05a75300b916c24335031088650193bc5c38246e06b", kill_on_drop: false }`
[INFO] [stdout] ced41cf18615fe9d4334e05a75300b916c24335031088650193bc5c38246e06b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efcf4ce77fe53c56f711aa28a6e3ef2275e75b1970b876020327f97c0be15ce8
[INFO] running `Command { std: "docker" "start" "-a" "efcf4ce77fe53c56f711aa28a6e3ef2275e75b1970b876020327f97c0be15ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling rv-asm v0.2.1
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling no-error-type v0.1.2
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling exhaust-macros v0.2.2
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling exhaust v0.2.2
[INFO] [stderr]    Compiling portal-pc-asm-common v0.1.0
[INFO] [stderr]    Compiling portal-solutions-rv-emit v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `slice::BitSlice`
[INFO] [stdout]  --> src/lib.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitvec::{bits, slice::BitSlice};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn i64_reg(mut a: u64, r: Reg) -> impl Iterator<Item = (Inst, Nj)> {
[INFO] [stdout]    |                ----^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     mut a: impl Iterator<Item = V>,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let mut a = core::iter::from_fn(move || {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.69s
[INFO] running `Command { std: "docker" "inspect" "efcf4ce77fe53c56f711aa28a6e3ef2275e75b1970b876020327f97c0be15ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efcf4ce77fe53c56f711aa28a6e3ef2275e75b1970b876020327f97c0be15ce8", kill_on_drop: false }`
[INFO] [stdout] efcf4ce77fe53c56f711aa28a6e3ef2275e75b1970b876020327f97c0be15ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15e613092f517755ba2fd1fe88a68c5e23b2a39766e1fbaf6c9a5ceb427d4372
[INFO] running `Command { std: "docker" "start" "-a" "15e613092f517755ba2fd1fe88a68c5e23b2a39766e1fbaf6c9a5ceb427d4372", kill_on_drop: false }`
[INFO] [stderr]    Compiling portal-solutions-rv-emit v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `slice::BitSlice`
[INFO] [stdout]  --> src/lib.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitvec::{bits, slice::BitSlice};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn i64_reg(mut a: u64, r: Reg) -> impl Iterator<Item = (Inst, Nj)> {
[INFO] [stdout]    |                ----^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     mut a: impl Iterator<Item = V>,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let mut a = core::iter::from_fn(move || {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `slice::BitSlice`
[INFO] [stdout]  --> src/lib.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use bitvec::{bits, slice::BitSlice};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn i64_reg(mut a: u64, r: Reg) -> impl Iterator<Item = (Inst, Nj)> {
[INFO] [stdout]    |                ----^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     mut a: impl Iterator<Item = V>,
[INFO] [stdout]    |     ----^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:97:9
[INFO] [stdout]    |
[INFO] [stdout] 97 |     let mut a = core::iter::from_fn(move || {
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "15e613092f517755ba2fd1fe88a68c5e23b2a39766e1fbaf6c9a5ceb427d4372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15e613092f517755ba2fd1fe88a68c5e23b2a39766e1fbaf6c9a5ceb427d4372", kill_on_drop: false }`
[INFO] [stdout] 15e613092f517755ba2fd1fe88a68c5e23b2a39766e1fbaf6c9a5ceb427d4372
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da9da5ee3800eaf68fd13e75795e97e7057852b6ef72414f7f31b608d18f1cbc
[INFO] running `Command { std: "docker" "start" "-a" "da9da5ee3800eaf68fd13e75795e97e7057852b6ef72414f7f31b608d18f1cbc", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `slice::BitSlice`
[INFO] [stderr]  --> src/lib.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use bitvec::{bits, slice::BitSlice};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn i64_reg(mut a: u64, r: Reg) -> impl Iterator<Item = (Inst, Nj)> {
[INFO] [stderr]    |                ----^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     mut a: impl Iterator<Item = V>,
[INFO] [stderr]    |     ----^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:97:9
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let mut a = core::iter::from_fn(move || {
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `portal-solutions-rv-emit` (lib) generated 4 warnings (run `cargo fix --lib -p portal-solutions-rv-emit` to apply 4 suggestions)
[INFO] [stderr] warning: `portal-solutions-rv-emit` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/portal_solutions_rv_emit-3f5896188576b222)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests portal_solutions_rv_emit
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da9da5ee3800eaf68fd13e75795e97e7057852b6ef72414f7f31b608d18f1cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9da5ee3800eaf68fd13e75795e97e7057852b6ef72414f7f31b608d18f1cbc", kill_on_drop: false }`
[INFO] [stdout] da9da5ee3800eaf68fd13e75795e97e7057852b6ef72414f7f31b608d18f1cbc
