[INFO] fetching crate syndicate-tools 0.10.0...
[INFO] testing syndicate-tools-0.10.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate syndicate-tools 0.10.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate syndicate-tools 0.10.0 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 syndicate-tools 0.10.0
[INFO] finished tweaking crates.io crate syndicate-tools 0.10.0
[INFO] tweaked toml for crates.io crate syndicate-tools 0.10.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate syndicate-tools 0.10.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded syndicate v0.31.1
[INFO] [stderr]   Downloaded noise-protocol v0.1.4
[INFO] [stderr]   Downloaded preserves-schema v5.992.0
[INFO] [stderr]   Downloaded x25519-dalek v1.2.0
[INFO] [stderr]   Downloaded preserves v4.992.1
[INFO] [stderr]   Downloaded noise-rust-crypto v0.5.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d18d06ccdd58b4208f2bdb46ae4abff82d3b29627553cfc6ff502bbcf8cacf3
[INFO] running `Command { std: "docker" "start" "-a" "5d18d06ccdd58b4208f2bdb46ae4abff82d3b29627553cfc6ff502bbcf8cacf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d18d06ccdd58b4208f2bdb46ae4abff82d3b29627553cfc6ff502bbcf8cacf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d18d06ccdd58b4208f2bdb46ae4abff82d3b29627553cfc6ff502bbcf8cacf3", kill_on_drop: false }`
[INFO] [stdout] 5d18d06ccdd58b4208f2bdb46ae4abff82d3b29627553cfc6ff502bbcf8cacf3
[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=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] e0d66cb9f19f68583aef6058f42baa3f1c65844b24b5d44bc7f55c6b7fb710b4
[INFO] running `Command { std: "docker" "start" "-a" "e0d66cb9f19f68583aef6058f42baa3f1c65844b24b5d44bc7f55c6b7fb710b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling clap_lex v0.6.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling tracing-log v0.1.4
[INFO] [stderr]    Compiling clap_builder v4.4.8
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling noise-protocol v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling universal-hash v0.4.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling aead v0.4.3
[INFO] [stderr]    Compiling polyval v0.5.3
[INFO] [stderr]    Compiling poly1305 v0.7.2
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling aes v0.7.5
[INFO] [stderr]    Compiling ctr v0.8.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling ghash v0.4.4
[INFO] [stderr]    Compiling blake2 v0.10.6
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling aes-gcm v0.9.4
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling clap_derive v4.4.7
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling tokio v1.34.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling chacha20 v0.8.2
[INFO] [stderr]    Compiling curve25519-dalek v3.2.1
[INFO] [stderr]    Compiling chacha20poly1305 v0.9.1
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling x25519-dalek v1.2.0
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling noise-rust-crypto v0.5.0
[INFO] [stderr]    Compiling clap v4.4.8
[INFO] [stderr]    Compiling clap_complete v4.4.4
[INFO] [stderr]    Compiling tokio-util v0.6.10
[INFO] [stderr]    Compiling futures-executor v0.3.29
[INFO] [stderr]    Compiling futures v0.3.29
[INFO] [stderr]    Compiling serde_bytes v0.11.12
[INFO] [stderr]    Compiling tracing-serde v0.1.3
[INFO] [stderr]    Compiling preserves v4.992.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.25
[INFO] [stderr]    Compiling preserves-schema v5.992.0
[INFO] [stderr]    Compiling syndicate v0.31.1
[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/syndicate-0.31.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(min_specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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 `syndicate` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e0d66cb9f19f68583aef6058f42baa3f1c65844b24b5d44bc7f55c6b7fb710b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d66cb9f19f68583aef6058f42baa3f1c65844b24b5d44bc7f55c6b7fb710b4", kill_on_drop: false }`
[INFO] [stdout] e0d66cb9f19f68583aef6058f42baa3f1c65844b24b5d44bc7f55c6b7fb710b4
