[INFO] fetching crate drug 0.0.2...
[INFO] testing drug-0.0.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate drug 0.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate drug 0.0.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drug 0.0.2
[INFO] finished tweaking crates.io crate drug 0.0.2
[INFO] tweaked toml for crates.io crate drug 0.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded debug_stub_derive v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c99356d64eb08f5848aadc81e7deb2f46292803f4a055e050604b8e376507549
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c99356d64eb08f5848aadc81e7deb2f46292803f4a055e050604b8e376507549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c99356d64eb08f5848aadc81e7deb2f46292803f4a055e050604b8e376507549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99356d64eb08f5848aadc81e7deb2f46292803f4a055e050604b8e376507549", kill_on_drop: false }`
[INFO] [stdout] c99356d64eb08f5848aadc81e7deb2f46292803f4a055e050604b8e376507549
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f1bbe3c99f5607db7bd3acded651e71ede60334b56ae3f1c366d3e265aca532
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f1bbe3c99f5607db7bd3acded651e71ede60334b56ae3f1c366d3e265aca532", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling drug v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/graph.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Initializer(Box<(Fn(&[usize]) -> ArrayD<f32>)>);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct Initializer(Box<(Fn(&[usize]) -> ArrayD<f32>)>);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/graph.rs:73:33
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new(initializer: Box<(Fn(&[usize]) -> ArrayD<f32>)>, optimizer: Optimizer) -> Self {
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graph.rs:73:34
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn new(initializer: Box<(Fn(&[usize]) -> ArrayD<f32>)>, optimizer: Optimizer) -> Self {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<f32>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph.rs:106:44
[INFO] [stdout]     |
[INFO] [stdout] 106 |     pub fn input(&mut self, it: Option<Box<Iterator<Item = ArrayD<f32>>>>) -> Idx {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/graph.rs:226:18
[INFO] [stdout]     |
[INFO] [stdout] 226 |         new: Box<Iterator<Item = ArrayD<f32>>>,
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/mod.rs:56:24
[INFO] [stdout]    |
[INFO] [stdout] 56 |         it: Option<Box<Iterator<Item = ArrayD<f32>>>>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nodes/mod.rs:87:24
[INFO] [stdout]    |
[INFO] [stdout] 87 |         operation: Box<Operation>,
[INFO] [stdout]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nodes/mod.rs:138:22
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl Default for Box<Operation> {
[INFO] [stdout]     |                      ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drug` due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8f1bbe3c99f5607db7bd3acded651e71ede60334b56ae3f1c366d3e265aca532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f1bbe3c99f5607db7bd3acded651e71ede60334b56ae3f1c366d3e265aca532", kill_on_drop: false }`
[INFO] [stdout] 8f1bbe3c99f5607db7bd3acded651e71ede60334b56ae3f1c366d3e265aca532
