[INFO] fetching crate snocat 0.8.0-alpha.5...
[INFO] testing snocat-0.8.0-alpha.5 against 1.75.0 for beta-1.76-1
[INFO] extracting crate snocat 0.8.0-alpha.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate snocat 0.8.0-alpha.5 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 snocat 0.8.0-alpha.5
[INFO] finished tweaking crates.io crate snocat 0.8.0-alpha.5
[INFO] tweaked toml for crates.io crate snocat 0.8.0-alpha.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded arcstr v1.1.5
[INFO] [stderr]   Downloaded redis-protocol v4.1.0
[INFO] [stderr]   Downloaded fred v6.3.2
[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] 31d6447e90df54c43a0f99dacb26c48a559baf64ee9e6e799b0376d2fc56fa7c
[INFO] running `Command { std: "docker" "start" "-a" "31d6447e90df54c43a0f99dacb26c48a559baf64ee9e6e799b0376d2fc56fa7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31d6447e90df54c43a0f99dacb26c48a559baf64ee9e6e799b0376d2fc56fa7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d6447e90df54c43a0f99dacb26c48a559baf64ee9e6e799b0376d2fc56fa7c", kill_on_drop: false }`
[INFO] [stdout] 31d6447e90df54c43a0f99dacb26c48a559baf64ee9e6e799b0376d2fc56fa7c
[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] 58d65f421789dfcd8d24845594bc9e9ed5e3a6bd8ac53a73ddf25605250c8093
[INFO] running `Command { std: "docker" "start" "-a" "58d65f421789dfcd8d24845594bc9e9ed5e3a6bd8ac53a73ddf25605250c8093", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling untrusted v0.9.0
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling arc-swap v1.6.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling sct v0.7.1
[INFO] [stderr]    Compiling rustls-webpki v0.101.7
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling quinn-udp v0.4.1
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling quinn-proto v0.10.6
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling uuid v1.6.1
[INFO] [stderr]    Compiling quinn v0.10.2
[INFO] [stderr]    Compiling snocat v0.8.0-alpha.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snocat` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "58d65f421789dfcd8d24845594bc9e9ed5e3a6bd8ac53a73ddf25605250c8093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58d65f421789dfcd8d24845594bc9e9ed5e3a6bd8ac53a73ddf25605250c8093", kill_on_drop: false }`
[INFO] [stdout] 58d65f421789dfcd8d24845594bc9e9ed5e3a6bd8ac53a73ddf25605250c8093
