[INFO] cloning repository https://github.com/js0-site/jdb_ftl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js0-site/jdb_ftl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs0-site%2Fjdb_ftl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs0-site%2Fjdb_ftl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1cceb3409df2afd688d5df0ff322777bf4573d2
[INFO] testing js0-site/jdb_ftl against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs0-site%2Fjdb_ftl" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/js0-site/jdb_ftl
[INFO] finished tweaking git repo https://github.com/js0-site/jdb_ftl
[INFO] tweaked toml for git repo https://github.com/js0-site/jdb_ftl written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/js0-site/jdb_ftl 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 194 packages to latest compatible versions
[INFO] [stderr]       Adding fluent-templates v0.13.3 (available: v0.14.0)
[INFO] [stderr]       Adding rand v0.9.4 (available: v0.10.1)
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca3b92975bf2df818cebd0f2b2159a87358508e794b9d44f8859a55e7f2889c9
[INFO] running `Command { std: "docker" "start" "-a" "ca3b92975bf2df818cebd0f2b2159a87358508e794b9d44f8859a55e7f2889c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca3b92975bf2df818cebd0f2b2159a87358508e794b9d44f8859a55e7f2889c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca3b92975bf2df818cebd0f2b2159a87358508e794b9d44f8859a55e7f2889c9", kill_on_drop: false }`
[INFO] [stdout] ca3b92975bf2df818cebd0f2b2159a87358508e794b9d44f8859a55e7f2889c9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79ecc2ccb9a497d37a2173539aa6f54f3684eb944fd9e97d3e2a29eb79f80b86
[INFO] running `Command { std: "docker" "start" "-a" "79ecc2ccb9a497d37a2173539aa6f54f3684eb944fd9e97d3e2a29eb79f80b86", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling rustc-hash v2.1.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling bstr v1.12.1
[INFO] [stderr]    Compiling type-map v0.5.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling simd-adler32 v0.3.9
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling ref-cast v1.0.25
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling unicode-width v0.2.2
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling self_cell v1.2.2
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling console v0.16.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling rapidhash v4.4.1
[INFO] [stderr]    Compiling sonic-number v0.1.2
[INFO] [stderr]    Compiling sonic-simd v0.1.4
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling ftl_trait v0.1.0 (/opt/rustwide/workdir/ftl_trait)
[INFO] [stderr]    Compiling unit-prefix v0.5.2
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling indicatif v0.18.4
[INFO] [stderr]    Compiling leaftl v0.1.0 (/opt/rustwide/workdir/leaftl)
[INFO] [stderr]    Compiling jiff v0.2.24
[INFO] [stderr]    Compiling jdb_ftl v0.1.0 (/opt/rustwide/workdir/jdb_ftl)
[INFO] [stderr]    Compiling izip v0.1.0 (/opt/rustwide/workdir/izip)
[INFO] [stderr]    Compiling pfor v0.1.0 (/opt/rustwide/workdir/pfor)
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling ignore v0.4.25
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling clap_derive v4.6.1
[INFO] [stderr]    Compiling tinystr v0.8.3
[INFO] [stderr]    Compiling unic-langid-impl v0.9.6
[INFO] [stderr]    Compiling unic-langid-macros-impl v0.9.6
[INFO] [stderr]    Compiling unic-langid-macros v0.9.6
[INFO] [stderr]    Compiling unic-langid v0.9.6
[INFO] [stderr]    Compiling fluent-langneg v0.13.1
[INFO] [stderr]    Compiling intl_pluralrules v7.0.2
[INFO] [stderr]    Compiling intl-memoizer v0.5.3
[INFO] [stderr]    Compiling fluent-syntax v0.12.0
[INFO] [stderr]    Compiling fluent-template-macros v0.13.3
[INFO] [stderr]    Compiling fluent-bundle v0.16.0
[INFO] [stderr]    Compiling clap v4.6.1
[INFO] [stderr]    Compiling faststr v0.2.34
[INFO] [stderr]    Compiling fluent-templates v0.13.3
[INFO] [stderr]    Compiling jdb_ef v0.1.0 (/opt/rustwide/workdir/jdb_ef)
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling sonic-rs v0.5.8
[INFO] [stderr]    Compiling ftl_pgm v0.1.0 (/opt/rustwide/workdir/ftl_pgm)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> ftl_pgm/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_const_exprs)]
[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 `ftl_pgm` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "79ecc2ccb9a497d37a2173539aa6f54f3684eb944fd9e97d3e2a29eb79f80b86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79ecc2ccb9a497d37a2173539aa6f54f3684eb944fd9e97d3e2a29eb79f80b86", kill_on_drop: false }`
[INFO] [stdout] 79ecc2ccb9a497d37a2173539aa6f54f3684eb944fd9e97d3e2a29eb79f80b86
