[INFO] fetching crate dynagrad 0.4.1...
[INFO] testing dynagrad-0.4.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dynagrad 0.4.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate dynagrad 0.4.1
[INFO] finished tweaking crates.io crate dynagrad 0.4.1
[INFO] tweaked toml for crates.io crate dynagrad 0.4.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dynagrad 0.4.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dynagrad 0.4.1 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-5-tc1/source/examples/simple.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `eg_simple`
[INFO] [stderr]   * `example` target `simple`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.1.15
[INFO] [stderr]   Downloaded ndarray-rand v0.9.0
[INFO] [stderr]   Downloaded gnuplot v0.0.32
[INFO] [stderr]   Downloaded ndarray v0.12.1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 713e84aefb6a0bac9d0b51f5b4dcf297ccc8c1c0ae0a7aab782bf8a9ffad16a5
[INFO] running `Command { std: "docker" "start" "-a" "713e84aefb6a0bac9d0b51f5b4dcf297ccc8c1c0ae0a7aab782bf8a9ffad16a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "713e84aefb6a0bac9d0b51f5b4dcf297ccc8c1c0ae0a7aab782bf8a9ffad16a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713e84aefb6a0bac9d0b51f5b4dcf297ccc8c1c0ae0a7aab782bf8a9ffad16a5", kill_on_drop: false }`
[INFO] [stdout] 713e84aefb6a0bac9d0b51f5b4dcf297ccc8c1c0ae0a7aab782bf8a9ffad16a5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a460ad00f3aaecb94422eac2361657154483fae302fba9e639cc44d24289668
[INFO] running `Command { std: "docker" "start" "-a" "4a460ad00f3aaecb94422eac2361657154483fae302fba9e639cc44d24289668", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/simple.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `eg_simple`
[INFO] [stderr]   * `example` target `simple`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling gnuplot v0.0.32
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling dynagrad v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(weak_into_raw)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `weak_into_raw` has been stable since 1.45.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(weak_into_raw)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `as_raw` found for struct `std::rc::Weak` in the current scope
[INFO] [stdout]   --> src/core.rs:22:16
[INFO] [stdout]    |
[INFO] [stdout] 22 |         (Weak::as_raw(&p) as usize).hash(state);
[INFO] [stdout]    |                ^^^^^^ function or associated item not found in `std::rc::Weak<_, _>`
[INFO] [stdout]    |
[INFO] [stdout] note: if you're trying to build a new `std::rc::Weak<_, _>` consider using one of the following associated functions:
[INFO] [stdout]       std::rc::Weak::<T>::new
[INFO] [stdout]       std::rc::Weak::<T, A>::new_in
[INFO] [stdout]       std::rc::Weak::<T>::from_raw
[INFO] [stdout]       std::rc::Weak::<T, A>::from_raw_in
[INFO] [stdout]   --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/rc.rs:3040:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dynagrad` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "4a460ad00f3aaecb94422eac2361657154483fae302fba9e639cc44d24289668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a460ad00f3aaecb94422eac2361657154483fae302fba9e639cc44d24289668", kill_on_drop: false }`
[INFO] [stdout] 4a460ad00f3aaecb94422eac2361657154483fae302fba9e639cc44d24289668