[INFO] fetching crate cralgebra 0.2.1...
[INFO] testing cralgebra-0.2.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate cralgebra 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate cralgebra 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate cralgebra 0.2.1
[INFO] tweaked toml for crates.io crate cralgebra 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cralgebra 0.2.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cralgebra 0.2.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42
[INFO] running `Command { std: "docker" "start" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling cralgebra v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bigint_helper_methods)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `bigint_helper_methods`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(bigint_helper_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]   --> src/types/z2_8.rs:75:38
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/types/z2_8.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |             ^^^^^^^^^^^   ---------------------------------- this expression has type `u16`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected `u16`, found `(_, _)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `u16`
[INFO] [stdout]              found tuple `(_, _)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]   --> src/types/z2_16.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/types/z2_16.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |             ^^^^^^^^^^^   ---------------------------------- this expression has type `u32`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected `u32`, found `(_, _)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `u32`
[INFO] [stdout]              found tuple `(_, _)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]   --> src/types/z2_32.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/types/z2_32.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |             ^^^^^^^^^^^   ---------------------------------- this expression has type `u64`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected `u64`, found `(_, _)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `u64`
[INFO] [stdout]              found tuple `(_, _)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]   --> src/types/z2_64.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/types/z2_64.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |             ^^^^^^^^^^^   ---------------------------------- this expression has type `u128`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             expected `u128`, found `(_, _)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type `u128`
[INFO] [stdout]              found tuple `(_, _)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `widening_mul` found for type `u128` in the current scope
[INFO] [stdout]   --> src/types/z2_128.rs:69:38
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `wrapping_mul` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 69 -         let (low, high) = self.inner.widening_mul(rhs.inner);
[INFO] [stdout] 69 +         let (low, high) = self.inner.wrapping_mul(rhs.inner);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `widening_mul`
[INFO] [stdout]    --> src/types/z2_64n.rs:149:51
[INFO] [stdout]     |
[INFO] [stdout] 149 |                     let (rl, rh) = self.chunks[m].widening_mul(rhs.chunks[n - m]);
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #152016 <https://github.com/rust-lang/rust/issues/152016> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/types/z2_64n.rs:149:25
[INFO] [stdout]     |
[INFO] [stdout] 149 |                     let (rl, rh) = self.chunks[m].widening_mul(rhs.chunks[n - m]);
[INFO] [stdout]     |                         ^^^^^^^^   ---------------------------------------------- this expression has type `u128`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         expected `u128`, found `(_, _)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type `u128`
[INFO] [stdout]               found tuple `(_, _)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/types/montgomery_dyn.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let c = ctx.1;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554, E0599, E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cralgebra` (lib) due to 13 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42", kill_on_drop: false }`
[INFO] [stdout] d31306f4da5d08fe5b31f56e1bd49cf6f868f01b83406e5fa2adbbdcc0d54d42
