[INFO] fetching crate js0_captcha 0.1.1...
[INFO] checking js0_captcha-0.1.1 against 1.95.0 for pr-155915
[INFO] extracting crate js0_captcha 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate js0_captcha 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate js0_captcha 0.1.1
[INFO] tweaked toml for crates.io crate js0_captcha 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate js0_captcha 0.1.1 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 js0_captcha 0.1.1 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 cookie-factory v0.3.2
[INFO] [stderr]   Downloaded static_ v0.1.14
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[INFO] [stderr]   Downloaded xbin v0.1.9
[INFO] [stderr]   Downloaded xerr v0.1.16
[INFO] [stderr]   Downloaded logforth-core v0.2.1
[INFO] [stderr]   Downloaded click_captcha v0.1.38
[INFO] [stderr]   Downloaded image-webp v0.1.3
[INFO] [stderr]   Downloaded logforth v0.28.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 75ff2543e87b42125e67e8708d4d7b561d4725268377762838854a90d74e861d
[INFO] running `Command { std: "docker" "start" "-a" "75ff2543e87b42125e67e8708d4d7b561d4725268377762838854a90d74e861d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75ff2543e87b42125e67e8708d4d7b561d4725268377762838854a90d74e861d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75ff2543e87b42125e67e8708d4d7b561d4725268377762838854a90d74e861d", kill_on_drop: false }`
[INFO] [stdout] 75ff2543e87b42125e67e8708d4d7b561d4725268377762838854a90d74e861d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 947e49914f21d7e4bc35dbfc0635a03ebede194bab852335f5371a88bcaea8f9
[INFO] running `Command { std: "docker" "start" "-a" "947e49914f21d7e4bc35dbfc0635a03ebede194bab852335f5371a88bcaea8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.20
[INFO] [stderr]     Checking sval v2.16.0
[INFO] [stderr]    Compiling typeid v1.0.3
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[INFO] [stderr]    Compiling linkme-impl v0.3.35
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[INFO] [stderr]     Checking kurbo v0.11.3
[INFO] [stderr]     Checking memmap2 v0.9.9
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.3.0
[INFO] [stderr]    Compiling linkme v0.3.35
[INFO] [stderr]     Checking unicode-ccc v0.3.0
[INFO] [stderr]     Checking aok v0.1.17
[INFO] [stderr]     Checking tiny-skia-path v0.11.4
[INFO] [stderr]    Compiling static_init v1.0.4
[INFO] [stderr]     Checking rustls-pki-types v1.12.0
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[INFO] [stderr]     Checking data-url v0.3.2
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[INFO] [stderr]    Compiling tokio-macros v2.6.0
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[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking serde_fmt v1.0.3
[INFO] [stderr]     Checking serde_buf v0.1.1
[INFO] [stderr]     Checking async_wrap v0.1.10
[INFO] [stderr]     Checking tokio-util v0.7.16
[INFO] [stderr]     Checking xboot v0.1.28
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking value-bag-serde1 v1.11.1
[INFO] [stderr]     Checking value-bag v1.11.1
[INFO] [stderr]     Checking static_ v0.1.14
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking logforth-core v0.2.1
[INFO] [stderr]     Checking logforth-layout-text v0.2.1
[INFO] [stderr]     Checking logforth-append-file v0.2.1
[INFO] [stderr]     Checking logforth-layout-json v0.2.1
[INFO] [stderr]     Checking rustybuzz v0.18.0
[INFO] [stderr]     Checking simplecss v0.2.2
[INFO] [stderr]     Checking fontdb v0.22.0
[INFO] [stderr]     Checking tiny-skia v0.11.4
[INFO] [stderr]     Checking logforth-bridge-log v0.2.1
[INFO] [stderr]     Checking redis-protocol v6.0.0
[INFO] [stderr]     Checking xerr v0.1.16
[INFO] [stderr]     Checking logforth v0.28.1
[INFO] [stderr]     Checking log_init v0.1.27
[INFO] [stderr]     Checking xbin v0.1.9
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking fred v10.1.0
[INFO] [stderr]     Checking usvg v0.44.0
[INFO] [stderr]     Checking resvg v0.44.0
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[INFO] [stderr]     Checking click_captcha v0.1.38
[INFO] [stderr]     Checking xkv v0.1.49
[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-0.1.49/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(doc_cfg)]
[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" "947e49914f21d7e4bc35dbfc0635a03ebede194bab852335f5371a88bcaea8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947e49914f21d7e4bc35dbfc0635a03ebede194bab852335f5371a88bcaea8f9", kill_on_drop: false }`
[INFO] [stdout] 947e49914f21d7e4bc35dbfc0635a03ebede194bab852335f5371a88bcaea8f9
