[INFO] fetching crate khalas 0.2.0...
[INFO] checking khalas-0.2.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate khalas 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate khalas 0.2.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate khalas 0.2.0
[INFO] finished tweaking crates.io crate khalas 0.2.0
[INFO] tweaked toml for crates.io crate khalas 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e493f3486f54fc54ed68d203d0f41f2d5742a129cba407a999a695daede492e
[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" "5e493f3486f54fc54ed68d203d0f41f2d5742a129cba407a999a695daede492e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e493f3486f54fc54ed68d203d0f41f2d5742a129cba407a999a695daede492e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e493f3486f54fc54ed68d203d0f41f2d5742a129cba407a999a695daede492e", kill_on_drop: false }`
[INFO] [stdout] 5e493f3486f54fc54ed68d203d0f41f2d5742a129cba407a999a695daede492e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2427a1a9a38255e86e9591ccff96d665b2b27cf8bfa3087ed1610c3543401fa
[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" "c2427a1a9a38255e86e9591ccff96d665b2b27cf8bfa3087ed1610c3543401fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.67
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.67
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling pulldown-cmark v0.6.1
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling seed v0.6.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling dbg v1.0.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derive_rich v0.2.2
[INFO] [stderr]    Compiling derive_more v0.99.9
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking web-sys v0.3.44
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.17
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking khalas v0.2.0 (/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(decl_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `PMsg` in this scope
[INFO] [stdout]    --> src/el/layout/flexbox.rs:311:25
[INFO] [stdout]     |
[INFO] [stdout] 304 |     pub enum Msg {
[INFO] [stdout]     |     ------------ similarly named enum `Msg` defined here
[INFO] [stdout] ...
[INFO] [stdout] 311 |         items: Vec<Node<PMsg>>,
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 311 |         items: Vec<Node<Msg>>,
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub struct Flexbox<PMsg> {
[INFO] [stdout]     |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `PMsg` in this scope
[INFO] [stdout]    --> src/el/layout/flexbox.rs:314:48
[INFO] [stdout]     |
[INFO] [stdout] 304 |     pub enum Msg {
[INFO] [stdout]     |     ------------ similarly named enum `Msg` defined here
[INFO] [stdout] ...
[INFO] [stdout] 314 |     fn view_flexbox(flexbox: &Flexbox) -> Node<PMsg> {
[INFO] [stdout]     |                                                ^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn view_flexbox(flexbox: &Flexbox) -> Node<Msg> {
[INFO] [stdout]     |                                                ^^^
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]     |
[INFO] [stdout] 314 |     fn view_flexbox<PMsg>(flexbox: &Flexbox) -> Node<PMsg> {
[INFO] [stdout]     |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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(decl_macro)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/el/control/button.rs:238:9
[INFO] [stdout]     |
[INFO] [stdout] 238 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/render.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `khalas`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/el/layout/flexbox.rs:328:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |         panic!("{:#?}", flexbox);
[INFO] [stdout]     |         ------------------------- any code following this expression is unreachable
[INFO] [stdout] 328 |         let node = view_flexbox(&flexbox);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c2427a1a9a38255e86e9591ccff96d665b2b27cf8bfa3087ed1610c3543401fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2427a1a9a38255e86e9591ccff96d665b2b27cf8bfa3087ed1610c3543401fa", kill_on_drop: false }`
[INFO] [stdout] c2427a1a9a38255e86e9591ccff96d665b2b27cf8bfa3087ed1610c3543401fa
