[INFO] fetching crate yarnn 0.1.0...
[INFO] testing yarnn-0.1.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate yarnn 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate yarnn 0.1.0
[INFO] finished tweaking crates.io crate yarnn 0.1.0
[INFO] tweaked toml for crates.io crate yarnn 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yarnn 0.1.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to highest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.3)
[INFO] [stderr]       Adding rand_distr v0.2.2 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | homepage = "https://github.com/andreytkachenko/yarnn"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 | repository = "https://github.com/andreytkachenko/yarnn"
[INFO] [stderr]    |              ------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `yarnn` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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] bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522
[INFO] running `Command { std: "docker" "start" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522", 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" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522", 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" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | homepage = "https://github.com/andreytkachenko/yarnn"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 | repository = "https://github.com/andreytkachenko/yarnn"
[INFO] [stderr]    |              ------------------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `yarnn` (manifest) generated 1 warning
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling yarnn v0.1.0 (/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(specialization, trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization, trait_alias)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::EPSILON`: replaced by the `EPSILON` associated constant on `f32`
[INFO] [stdout]   --> src/optimizers/adam.rs:90:139
[INFO] [stdout]    |
[INFO] [stdout] 90 | ....vhats, backend.scalar_f32(self.epsilon.unwrap_or(core::f32::EPSILON)));
[INFO] [stdout]    |                                                                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::EPSILON`: replaced by the `EPSILON` associated constant on `f32`
[INFO] [stdout]   --> src/optimizers/adam.rs:93:138
[INFO] [stdout]    |
[INFO] [stdout] 93 | ...x.vels, backend.scalar_f32(self.epsilon.unwrap_or(core::f32::EPSILON)));
[INFO] [stdout]    |                                                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::EPSILON`: replaced by the `EPSILON` associated constant on `f32`
[INFO] [stdout]   --> src/optimizers/rmsprop.rs:65:146
[INFO] [stdout]    |
[INFO] [stdout] 65 | ....accum, backend.scalar_f32(self.epsilon.unwrap_or(core::f32::EPSILON)));
[INFO] [stdout]    |                                                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::NEG_INFINITY`: replaced by the `NEG_INFINITY` associated constant on `f32`
[INFO] [stdout]    --> src/native/mod.rs:593:40
[INFO] [stdout]     |
[INFO] [stdout] 593 |             let mut max_x = core::f32::NEG_INFINITY;
[INFO] [stdout]     |                                        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::NEG_INFINITY`: replaced by the `NEG_INFINITY` associated constant on `f32`
[INFO] [stdout]   --> src/native/pool2d.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 |             let mut max = core::f32::NEG_INFINITY;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::NEG_INFINITY`: replaced by the `NEG_INFINITY` associated constant on `f32`
[INFO] [stdout]   --> src/native/pool2d.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let mut max = core::f32::NEG_INFINITY;
[INFO] [stdout]    |                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::f32::NEG_INFINITY`: replaced by the `NEG_INFINITY` associated constant on `f32`
[INFO] [stdout]    --> src/native/pool2d.rs:110:38
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let mut max = core::f32::NEG_INFINITY;
[INFO] [stdout]     |                                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yarnn` (lib) due to 1 previous error; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522", kill_on_drop: false }`
[INFO] [stdout] bfb35fef6ed29bf479ac58fdceea6e9f9cde4df5210aafd3fd3ff223c5a16522
