[INFO] fetching crate hacker-rs 0.1.5...
[INFO] testing hacker-rs-0.1.5 against 1.75.0 for beta-1.76-1
[INFO] extracting crate hacker-rs 0.1.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate hacker-rs 0.1.5 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] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate hacker-rs 0.1.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate hacker-rs 0.1.5
[INFO] tweaked toml for crates.io crate hacker-rs 0.1.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate hacker-rs 0.1.5 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.42
[INFO] [stderr]   Downloaded ryu v1.0.14
[INFO] [stderr]   Downloaded serde_derive v1.0.166
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.13
[INFO] [stderr]   Downloaded time-macros v0.2.9
[INFO] [stderr]   Downloaded serde v1.0.166
[INFO] [stderr]   Downloaded time v0.3.22
[INFO] [stderr]   Downloaded syn v2.0.23
[INFO] [stderr]   Downloaded serde_json v1.0.100
[INFO] [stderr]   Downloaded axum v0.6.18
[INFO] [stderr]   Downloaded thiserror v1.0.42
[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] 50272814f78307f7e101b23d0579f9175916c983fd770d988c49e4e5cddaebfb
[INFO] running `Command { std: "docker" "start" "-a" "50272814f78307f7e101b23d0579f9175916c983fd770d988c49e4e5cddaebfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50272814f78307f7e101b23d0579f9175916c983fd770d988c49e4e5cddaebfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50272814f78307f7e101b23d0579f9175916c983fd770d988c49e4e5cddaebfb", kill_on_drop: false }`
[INFO] [stdout] 50272814f78307f7e101b23d0579f9175916c983fd770d988c49e4e5cddaebfb
[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] 184372ff1b4727c8374aeb6f47e446feaf2235fdc5c4fb8a6ed4d2782e412c70
[INFO] running `Command { std: "docker" "start" "-a" "184372ff1b4727c8374aeb6f47e446feaf2235fdc5c4fb8a6ed4d2782e412c70", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling pin-project-lite v0.2.10
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling serde v1.0.166
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling openssl v0.10.55
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]    Compiling thiserror v1.0.42
[INFO] [stderr]    Compiling encoding_rs v0.8.32
[INFO] [stderr]    Compiling ipnet v2.8.0
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling base64 v0.21.2
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.166
[INFO] [stderr]    Compiling thiserror-impl v1.0.42
[INFO] [stderr]    Compiling tokio-util v0.7.8
[INFO] [stderr]    Compiling h2 v0.3.20
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.27
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling time v0.3.22
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.18
[INFO] [stderr]    Compiling hacker-rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(type_alias_impl_trait)]
[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 `hacker-rs` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "184372ff1b4727c8374aeb6f47e446feaf2235fdc5c4fb8a6ed4d2782e412c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "184372ff1b4727c8374aeb6f47e446feaf2235fdc5c4fb8a6ed4d2782e412c70", kill_on_drop: false }`
[INFO] [stdout] 184372ff1b4727c8374aeb6f47e446feaf2235fdc5c4fb8a6ed4d2782e412c70
