[INFO] fetching crate captcha_verify 0.1.4...
[INFO] checking captcha_verify-0.1.4 against 1.95.0 for pr-155915
[INFO] extracting crate captcha_verify 0.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate captcha_verify 0.1.4
[INFO] finished tweaking crates.io crate captcha_verify 0.1.4
[INFO] tweaked toml for crates.io crate captcha_verify 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate captcha_verify 0.1.4 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] crate crates.io crate captcha_verify 0.1.4 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linkme v0.3.31
[INFO] [stderr]   Downloaded async_wrap v0.1.10
[INFO] [stderr]   Downloaded gensym v0.1.1
[INFO] [stderr]   Downloaded crc16 v0.4.0
[INFO] [stderr]   Downloaded ub64 v0.0.10
[INFO] [stderr]   Downloaded linkme-impl v0.3.31
[INFO] [stderr]   Downloaded xkv v0.1.44
[INFO] [stderr]   Downloaded xboot v0.1.28
[INFO] [stderr]   Downloaded static_ v0.1.14
[INFO] [stderr]   Downloaded anyhow v1.0.96
[INFO] [stderr]   Downloaded xbin v0.1.6
[INFO] [stderr]   Downloaded cookie-factory v0.3.2
[INFO] [stderr]   Downloaded bytes-utils v0.1.4
[INFO] [stderr]   Downloaded async-trait v0.1.86
[INFO] [stderr]   Downloaded xerr v0.1.15
[INFO] [stderr]   Downloaded either v1.14.0
[INFO] [stderr]   Downloaded redis-protocol v6.0.0
[INFO] [stderr]   Downloaded fred-macros v0.1.0
[INFO] [stderr]   Downloaded cc v1.2.15
[INFO] [stderr]   Downloaded uuid v1.15.0
[INFO] [stderr]   Downloaded fred v10.0.4
[INFO] [stderr]   Downloaded ring v0.17.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d9793a707e656254dcd6a87225410d2e2f762df1e4dcbccf59e3061ea5b0d44e
[INFO] running `Command { std: "docker" "start" "-a" "d9793a707e656254dcd6a87225410d2e2f762df1e4dcbccf59e3061ea5b0d44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9793a707e656254dcd6a87225410d2e2f762df1e4dcbccf59e3061ea5b0d44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9793a707e656254dcd6a87225410d2e2f762df1e4dcbccf59e3061ea5b0d44e", kill_on_drop: false }`
[INFO] [stdout] d9793a707e656254dcd6a87225410d2e2f762df1e4dcbccf59e3061ea5b0d44e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bc6a980475b9e23df150dea378b61f2e03aaad052351072b6cb1db484421b8a3
[INFO] running `Command { std: "docker" "start" "-a" "bc6a980475b9e23df150dea378b61f2e03aaad052351072b6cb1db484421b8a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling anyhow v1.0.96
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]    Compiling linkme-impl v0.3.31
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking rustls-pki-types v1.11.0
[INFO] [stderr]    Compiling rustls v0.23.23
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]     Checking either v1.14.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking cookie-factory v0.3.2
[INFO] [stderr]     Checking rustls-webpki v0.102.8
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]     Checking arc-swap v1.7.1
[INFO] [stderr]     Checking ub64 v0.0.10
[INFO] [stderr]     Checking xbin v0.1.6
[INFO] [stderr]     Checking aok v0.1.17
[INFO] [stderr]     Checking bytes-utils v0.1.4
[INFO] [stderr]     Checking http v1.2.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking socket2 v0.5.8
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking redis-protocol v6.0.0
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling uuid v1.15.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling gensym v0.1.1
[INFO] [stderr]    Compiling fred-macros v0.1.0
[INFO] [stderr]    Compiling async-trait v0.1.86
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]     Checking tokio v1.43.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking linkme v0.3.31
[INFO] [stderr]     Checking zerofrom v0.1.5
[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]     Checking xerr v0.1.15
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking async_wrap v0.1.10
[INFO] [stderr]     Checking xboot v0.1.28
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking tokio-util v0.7.13
[INFO] [stderr]     Checking static_ v0.1.14
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking icu_properties v1.5.1
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking fred v10.0.4
[INFO] [stderr]     Checking xkv v0.1.44
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xkv-0.1.44/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(macro_metavar_expr)]
[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 `xkv` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bc6a980475b9e23df150dea378b61f2e03aaad052351072b6cb1db484421b8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc6a980475b9e23df150dea378b61f2e03aaad052351072b6cb1db484421b8a3", kill_on_drop: false }`
[INFO] [stdout] bc6a980475b9e23df150dea378b61f2e03aaad052351072b6cb1db484421b8a3