[INFO] fetching crate gcra 0.4.0...
[INFO] testing gcra-0.4.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate gcra 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate gcra 0.4.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gcra 0.4.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate gcra 0.4.0
[INFO] tweaked toml for crates.io crate gcra 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate gcra 0.4.0 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e9f2bb92c3dfd486ad95f3720adf4c5ddd103a7e622e0cecdc63cd97b459ab0
[INFO] running `Command { std: "docker" "start" "-a" "7e9f2bb92c3dfd486ad95f3720adf4c5ddd103a7e622e0cecdc63cd97b459ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e9f2bb92c3dfd486ad95f3720adf4c5ddd103a7e622e0cecdc63cd97b459ab0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e9f2bb92c3dfd486ad95f3720adf4c5ddd103a7e622e0cecdc63cd97b459ab0", kill_on_drop: false }`
[INFO] [stdout] 7e9f2bb92c3dfd486ad95f3720adf4c5ddd103a7e622e0cecdc63cd97b459ab0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21136fe29d8112664243baea0ac1c840e003879ca83a71a493ce130405cba765
[INFO] running `Command { std: "docker" "start" "-a" "21136fe29d8112664243baea0ac1c840e003879ca83a71a493ce130405cba765", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling dashmap v5.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.39
[INFO] [stderr]    Compiling gcra v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(div_duration)]
[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:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(is_some_and)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `gcra` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "21136fe29d8112664243baea0ac1c840e003879ca83a71a493ce130405cba765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21136fe29d8112664243baea0ac1c840e003879ca83a71a493ce130405cba765", kill_on_drop: false }`
[INFO] [stdout] 21136fe29d8112664243baea0ac1c840e003879ca83a71a493ce130405cba765
