[INFO] fetching crate dyadic-rationals 0.1.2...
[INFO] testing dyadic-rationals-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate dyadic-rationals 0.1.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate dyadic-rationals 0.1.2
[INFO] finished tweaking crates.io crate dyadic-rationals 0.1.2
[INFO] tweaked toml for crates.io crate dyadic-rationals 0.1.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dyadic-rationals 0.1.2 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 dyadic-rationals 0.1.2 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty v0.12.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.89
[INFO] [stderr]   Downloaded derive_arbitrary v1.3.2
[INFO] [stderr]   Downloaded arbtest v0.3.1
[INFO] [stderr]   Downloaded syn v2.0.85
[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] d070c0e156d23f1677f0d5b70dd62242359e4c529974fc6f837cfa7eca74ed55
[INFO] running `Command { std: "docker" "start" "-a" "d070c0e156d23f1677f0d5b70dd62242359e4c529974fc6f837cfa7eca74ed55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d070c0e156d23f1677f0d5b70dd62242359e4c529974fc6f837cfa7eca74ed55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d070c0e156d23f1677f0d5b70dd62242359e4c529974fc6f837cfa7eca74ed55", kill_on_drop: false }`
[INFO] [stdout] d070c0e156d23f1677f0d5b70dd62242359e4c529974fc6f837cfa7eca74ed55
[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] 2dfc4b97778e123ba0a76de15ee6ff18942115b7f928906f8a42918d7f9b32b1
[INFO] running `Command { std: "docker" "start" "-a" "2dfc4b97778e123ba0a76de15ee6ff18942115b7f928906f8a42918d7f9b32b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling pretty v0.12.3
[INFO] [stderr]    Compiling dyadic-rationals v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(btree_extract_if)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `impl Fn(&V) -> bool: RangeBounds<V>` is not satisfied
[INFO] [stdout]    --> src/context.rs:435:27
[INFO] [stdout]     |
[INFO] [stdout] 435 |         self.0.extract_if(f).collect()
[INFO] [stdout]     |                ---------- ^ the trait `RangeBounds<V>` is not implemented for `impl Fn(&V) -> bool`
[INFO] [stdout]     |                |
[INFO] [stdout]     |                required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `BTreeSet::<T, A>::extract_if`
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/collections/btree/set.rs:1223:5
[INFO] [stdout] help: consider restricting opaque type `impl Fn(&V) -> bool` with trait `RangeBounds`
[INFO] [stdout]     |
[INFO] [stdout] 431 |     pub fn extract_if(&mut self, f: impl Fn(&V) -> bool + std::ops::RangeBounds<V>) -> Set<V>
[INFO] [stdout]     |                                                         ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 2 arguments but 1 argument was supplied
[INFO] [stdout]    --> src/context.rs:435:16
[INFO] [stdout]     |
[INFO] [stdout] 435 |         self.0.extract_if(f).collect()
[INFO] [stdout]     |                ^^^^^^^^^^--- argument #2 is missing
[INFO] [stdout]     |
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/collections/btree/set.rs:1223:12
[INFO] [stdout] help: provide the argument
[INFO] [stdout]     |
[INFO] [stdout] 435 |         self.0.extract_if(f, /* pred */).collect()
[INFO] [stdout]     |                            ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `collect` exists for struct `std::collections::btree_set::ExtractIf<'_, V, impl Fn(&V) -> bool, _>`, but its trait bounds were not satisfied
[INFO] [stdout]    --> src/context.rs:435:30
[INFO] [stdout]     |
[INFO] [stdout] 435 |         self.0.extract_if(f).collect()
[INFO] [stdout]     |                              ^^^^^^^ method cannot be called due to unsatisfied trait bounds
[INFO] [stdout]     |
[INFO] [stdout]     = note: the following trait bounds were not satisfied:
[INFO] [stdout]             `impl Fn(&V) -> bool: RangeBounds<V>`
[INFO] [stdout]             which is required by `std::collections::btree_set::ExtractIf<'_, V, impl Fn(&V) -> bool, _>: Iterator`
[INFO] [stdout]             `std::collections::btree_set::ExtractIf<'_, V, impl Fn(&V) -> bool, _>: Iterator`
[INFO] [stdout]             which is required by `&mut std::collections::btree_set::ExtractIf<'_, V, impl Fn(&V) -> bool, _>: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0277, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dyadic-rationals` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "2dfc4b97778e123ba0a76de15ee6ff18942115b7f928906f8a42918d7f9b32b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dfc4b97778e123ba0a76de15ee6ff18942115b7f928906f8a42918d7f9b32b1", kill_on_drop: false }`
[INFO] [stdout] 2dfc4b97778e123ba0a76de15ee6ff18942115b7f928906f8a42918d7f9b32b1
