[INFO] fetching crate carbon14 0.0.0...
[INFO] testing carbon14-0.0.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate carbon14 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate carbon14 0.0.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carbon14 0.0.0
[INFO] finished tweaking crates.io crate carbon14 0.0.0
[INFO] tweaked toml for crates.io crate carbon14 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate carbon14 0.0.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shellexpand v3.1.0
[INFO] [stderr]   Downloaded rustc-std-workspace-core v1.0.0
[INFO] [stderr]   Downloaded x11-clipboard v0.8.1
[INFO] [stderr]   Downloaded gethostname v0.3.0
[INFO] [stderr]   Downloaded copypasta v0.10.0
[INFO] [stderr]   Downloaded wayland-cursor v0.31.0
[INFO] [stderr]   Downloaded smithay-clipboard v0.7.0
[INFO] [stderr]   Downloaded wayland-csd-frame v0.3.0
[INFO] [stderr]   Downloaded lazy-bytes-cast v5.0.1
[INFO] [stderr]   Downloaded bswap v1.0.0
[INFO] [stderr]   Downloaded wayland-protocols-wlr v0.2.0
[INFO] [stderr]   Downloaded wayland-scanner v0.31.0
[INFO] [stderr]   Downloaded portable-atomic v1.5.1
[INFO] [stderr]   Downloaded cursor-icon v1.1.0
[INFO] [stderr]   Downloaded wayland-protocols v0.31.0
[INFO] [stderr]   Downloaded clap_builder v4.4.7
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.18.0
[INFO] [stderr]   Downloaded x11rb-protocol v0.12.0
[INFO] [stderr]   Downloaded x11rb v0.12.0
[INFO] [stderr]   Downloaded xkeysym v0.2.0
[INFO] [stderr]   Downloaded wayland-backend v0.3.2
[INFO] [stderr]   Downloaded indicatif v0.17.7
[INFO] [stderr]   Downloaded memmap2 v0.9.0
[INFO] [stderr]   Downloaded wayland-client v0.31.1
[INFO] [stderr]   Downloaded clap v4.4.7
[INFO] [stderr]   Downloaded polling v3.3.0
[INFO] [stderr]   Downloaded iocore v0.110.0
[INFO] [stderr]   Downloaded calloop v0.12.3
[INFO] [stderr]   Downloaded serde_yaml v0.9.27
[INFO] [stderr]   Downloaded sanitation v0.0.0
[INFO] [stderr]   Downloaded clipboard-win v3.1.1
[INFO] [stderr]   Downloaded calloop-wayland-source v0.2.0
[INFO] [stderr]   Downloaded wayland-sys v0.31.1
[INFO] [stderr]   Downloaded sha v1.0.3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c45cb88d84f115ceb298c9f4663074ce6d6e280d739436a574d1fc662567d5c
[INFO] running `Command { std: "docker" "start" "-a" "2c45cb88d84f115ceb298c9f4663074ce6d6e280d739436a574d1fc662567d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c45cb88d84f115ceb298c9f4663074ce6d6e280d739436a574d1fc662567d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c45cb88d84f115ceb298c9f4663074ce6d6e280d739436a574d1fc662567d5c", kill_on_drop: false }`
[INFO] [stdout] 2c45cb88d84f115ceb298c9f4663074ce6d6e280d739436a574d1fc662567d5c
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 213cc39d806b45ec5451f0c7911f917ae36db2b3293d78b427ef3e59c572e46b
[INFO] running `Command { std: "docker" "start" "-a" "213cc39d806b45ec5451f0c7911f917ae36db2b3293d78b427ef3e59c572e46b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling libloading v0.8.1
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling dlib v0.5.2
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling smithay-client-toolkit v0.18.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling cursor-icon v1.1.0
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling x11rb v0.12.0
[INFO] [stderr]    Compiling wayland-sys v0.31.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.2
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling xkeysym v0.2.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling quick-xml v0.30.0
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling const-oid v0.9.5
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.4
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling portable-atomic v1.5.1
[INFO] [stderr]    Compiling anstream v0.6.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling rustc-std-workspace-core v1.0.0
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling clap_builder v4.4.7
[INFO] [stderr]    Compiling wayland-scanner v0.31.0
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling bswap v1.0.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.9
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling sanitation v0.0.0
[INFO] [stderr]    Compiling sha v1.0.3
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling gethostname v0.3.0
[INFO] [stderr]    Compiling memmap2 v0.9.0
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling console v0.15.7
[INFO] [stderr]    Compiling crc v3.0.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling wayland-backend v0.3.2
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling indicatif v0.17.7
[INFO] [stderr]    Compiling xcursor v0.3.4
[INFO] [stderr]    Compiling polling v3.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling x11rb-protocol v0.12.0
[INFO] [stderr]    Compiling bstr v1.7.0
[INFO] [stderr]    Compiling regex v1.10.2
[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-6f17d22bba15001f/regex-1.10.2/src/lib.rs:1317:42
[INFO] [stdout]      |
[INFO] [stdout] 1317 | #![cfg_attr(feature = "pattern", feature(pattern))]
[INFO] [stdout]      |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wayland-client v0.31.1
[INFO] [stderr]    Compiling wayland-csd-frame v0.3.0
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "213cc39d806b45ec5451f0c7911f917ae36db2b3293d78b427ef3e59c572e46b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213cc39d806b45ec5451f0c7911f917ae36db2b3293d78b427ef3e59c572e46b", kill_on_drop: false }`
[INFO] [stdout] 213cc39d806b45ec5451f0c7911f917ae36db2b3293d78b427ef3e59c572e46b
