[INFO] cloning repository https://github.com/mayabyte/cavegen-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mayabyte/cavegen-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayabyte%2Fcavegen-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayabyte%2Fcavegen-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f59899fdc88efc05b56fd052d79005fb1b9dbb92
[INFO] checking mayabyte/cavegen-bot against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmayabyte%2Fcavegen-bot" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mayabyte/cavegen-bot
[INFO] finished tweaking git repo https://github.com/mayabyte/cavegen-bot
[INFO] tweaked toml for git repo https://github.com/mayabyte/cavegen-bot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mayabyte/cavegen-bot 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 git repo https://github.com/mayabyte/cavegen-bot 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 git repository `https://github.com/mayabyte/caveripper`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v4.3.3
[INFO] [stderr]   Downloaded poise_macros v0.6.1
[INFO] [stderr]   Downloaded fontdue v0.8.0
[INFO] [stderr]   Downloaded half v2.7.0
[INFO] [stderr]   Downloaded error-stack v0.4.1
[INFO] [stderr]   Downloaded regex v1.12.1
[INFO] [stderr]   Downloaded poise v0.6.1
[INFO] [stderr]   Downloaded regex-syntax v0.8.7
[INFO] [stderr]   Downloaded regex-automata v0.4.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7b4756b4d4fd159a9745b55d3ffca27710df0b174a9b8f695e2eef489894a3cf
[INFO] running `Command { std: "docker" "start" "-a" "7b4756b4d4fd159a9745b55d3ffca27710df0b174a9b8f695e2eef489894a3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b4756b4d4fd159a9745b55d3ffca27710df0b174a9b8f695e2eef489894a3cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b4756b4d4fd159a9745b55d3ffca27710df0b174a9b8f695e2eef489894a3cf", kill_on_drop: false }`
[INFO] [stdout] 7b4756b4d4fd159a9745b55d3ffca27710df0b174a9b8f695e2eef489894a3cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 308b761f2fbcdbab22ca469e6020da550b9e47de8a2013c2773b44b77f04d160
[INFO] running `Command { std: "docker" "start" "-a" "308b761f2fbcdbab22ca469e6020da550b9e47de8a2013c2773b44b77f04d160", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling zerocopy v0.8.27
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[INFO] [stderr]    Compiling ahash v0.8.12
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[INFO] [stderr]    Compiling rustls v0.22.4
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling pest v2.8.3
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling cc v1.2.41
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking deranged v0.5.4
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking encoding_rs v0.8.35
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[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]     Checking num_threads v0.1.7
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[INFO] [stderr]     Checking anstream v0.6.21
[INFO] [stderr]    Compiling error-stack v0.4.1
[INFO] [stderr]     Checking webpki-roots v0.26.11
[INFO] [stderr]     Checking jpeg-decoder v0.3.2
[INFO] [stderr]    Compiling syn v2.0.106
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[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling pest_meta v2.8.3
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[INFO] [stderr]     Checking zune-inflate v0.2.54
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[INFO] [stderr]     Checking clap_builder v4.5.48
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[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num-iter v0.1.45
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[INFO] [stderr]    Compiling ring v0.17.14
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[INFO] [stderr]     Checking block-buffer v0.10.4
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[INFO] [stderr]     Checking float-ord v0.3.2
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[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking regex v1.12.1
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling auto_impl v1.3.0
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking rustls-webpki v0.102.8
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]     Checking clap v4.5.48
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling poise_macros v0.6.1
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.3
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking exr v1.73.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking fontdue v0.8.0
[INFO] [stderr]     Checking time v0.3.44
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking serde_cow v0.1.2
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking secrecy v0.8.0
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking futures v0.3.31
[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 tokio-util v0.7.16
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-rustls v0.25.0
[INFO] [stderr]     Checking tungstenite v0.21.0
[INFO] [stderr]     Checking simple_logger v4.3.3
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking tokio-tungstenite v0.21.0
[INFO] [stderr]     Checking caveripper v0.1.0 (https://github.com/mayabyte/caveripper#7bc7a208)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/caveripper-f85a0bcd20ebf51b/7bc7a20/caveripper/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_as_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_else` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hyper v0.14.32
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `caveripper` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "308b761f2fbcdbab22ca469e6020da550b9e47de8a2013c2773b44b77f04d160", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308b761f2fbcdbab22ca469e6020da550b9e47de8a2013c2773b44b77f04d160", kill_on_drop: false }`
[INFO] [stdout] 308b761f2fbcdbab22ca469e6020da550b9e47de8a2013c2773b44b77f04d160