[INFO] fetching crate falvo 0.0.0...
[INFO] checking falvo-0.0.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate falvo 0.0.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate falvo 0.0.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate falvo 0.0.0
[INFO] finished tweaking crates.io crate falvo 0.0.0
[INFO] tweaked toml for crates.io crate falvo 0.0.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate falvo 0.0.0 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb58ff24b461e254ed82a65e4aedae768323e706828ed897168ca2c66a67952
[INFO] running `Command { std: "docker" "start" "-a" "fdb58ff24b461e254ed82a65e4aedae768323e706828ed897168ca2c66a67952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb58ff24b461e254ed82a65e4aedae768323e706828ed897168ca2c66a67952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb58ff24b461e254ed82a65e4aedae768323e706828ed897168ca2c66a67952", kill_on_drop: false }`
[INFO] [stdout] fdb58ff24b461e254ed82a65e4aedae768323e706828ed897168ca2c66a67952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 633c4a232336f1ef38813afd1b3d174a5d5445112f9dacdc8af09564d0f1310c
[INFO] running `Command { std: "docker" "start" "-a" "633c4a232336f1ef38813afd1b3d174a5d5445112f9dacdc8af09564d0f1310c", kill_on_drop: false }`
[INFO] [stderr]     Checking falvo v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct fields are separated by `,`
[INFO] [stdout]   --> examples/demo.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ----- while parsing this struct
[INFO] [stdout] 12 |     root: W;
[INFO] [stdout]    |            ^ help: replace `;` with `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `tmpl` in this scope
[INFO] [stdout]   --> examples/slider.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         tmpl!{
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HtmlDriver` in this scope
[INFO] [stdout]  --> examples/demo.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl HtmlDriver {
[INFO] [stdout]   |      ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Server` in this scope
[INFO] [stdout]  --> examples/demo.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(server: Server) -> Self {
[INFO] [stdout]   |                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `HtmlDriver` in this scope
[INFO] [stdout]  --> examples/demo.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         HtmlDriver{
[INFO] [stdout]   |         ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]   --> examples/demo.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |                            ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Tuner` in this scope
[INFO] [stdout]   --> examples/demo.rs:16:39
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |                                       ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]  --> examples/slider.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl Widget for Slider {
[INFO] [stdout]   |      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]   --> examples/slider.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn unfold() -> Vec<Box<dyn Widget>> {
[INFO] [stdout]    |                                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Element` in this scope
[INFO] [stdout]   --> examples/slider.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Element for Slider {
[INFO] [stdout]    |      ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `slider`
[INFO] [stdout]   --> examples/slider.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/slider.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `falvo` should have an upper camel case name
[INFO] [stdout]   --> examples/demo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Falvo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `demo`
[INFO] [stdout]   --> examples/demo.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/demo.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: missing generics for struct `falvo`
[INFO] [stdout]   --> examples/demo.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |            ^^^^^ expected 2 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] note: struct defined here, with 2 generic parameters: `W`, `T`
[INFO] [stdout]   --> examples/demo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ^^^^^ -  -
[INFO] [stdout] help: add missing generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo<W, T> where W : Widget, T :Tuner {
[INFO] [stdout]    |                 ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0405, E0412, E0422, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `falvo` (example "slider") due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `falvo` (example "demo") due to 9 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "633c4a232336f1ef38813afd1b3d174a5d5445112f9dacdc8af09564d0f1310c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "633c4a232336f1ef38813afd1b3d174a5d5445112f9dacdc8af09564d0f1310c", kill_on_drop: false }`
[INFO] [stdout] 633c4a232336f1ef38813afd1b3d174a5d5445112f9dacdc8af09564d0f1310c
[INFO] checking falvo-0.0.0 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate falvo 0.0.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate falvo 0.0.0 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate falvo 0.0.0
[INFO] finished tweaking crates.io crate falvo 0.0.0
[INFO] tweaked toml for crates.io crate falvo 0.0.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate falvo 0.0.0 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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce5543b71269c6b1975acd9c2916f19f0303f06ff289ef750729bb87911560dc
[INFO] running `Command { std: "docker" "start" "-a" "ce5543b71269c6b1975acd9c2916f19f0303f06ff289ef750729bb87911560dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce5543b71269c6b1975acd9c2916f19f0303f06ff289ef750729bb87911560dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce5543b71269c6b1975acd9c2916f19f0303f06ff289ef750729bb87911560dc", kill_on_drop: false }`
[INFO] [stdout] ce5543b71269c6b1975acd9c2916f19f0303f06ff289ef750729bb87911560dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a57b2befc9d376b5ef0f714355d639f96a8795de0e78751866c5a060b741f1c3
[INFO] running `Command { std: "docker" "start" "-a" "a57b2befc9d376b5ef0f714355d639f96a8795de0e78751866c5a060b741f1c3", kill_on_drop: false }`
[INFO] [stderr]     Checking falvo v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct fields are separated by `,`
[INFO] [stdout]   --> examples/demo.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ----- while parsing this struct
[INFO] [stdout] 12 |     root: W;
[INFO] [stdout]    |            ^ help: replace `;` with `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `tmpl` in this scope
[INFO] [stdout]   --> examples/slider.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         tmpl!{
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]  --> examples/slider.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | impl Widget for Slider {
[INFO] [stdout]   |      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]   --> examples/slider.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn unfold() -> Vec<Box<dyn Widget>> {
[INFO] [stdout]    |                                ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Element` in this scope
[INFO] [stdout]   --> examples/slider.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Element for Slider {
[INFO] [stdout]    |      ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `HtmlDriver` in this scope
[INFO] [stdout]  --> examples/demo.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl HtmlDriver {
[INFO] [stdout]   |      ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Server` in this scope
[INFO] [stdout]  --> examples/demo.rs:4:24
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn new(server: Server) -> Self {
[INFO] [stdout]   |                        ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `HtmlDriver` in this scope
[INFO] [stdout]  --> examples/demo.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         HtmlDriver{
[INFO] [stdout]   |         ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Widget` in this scope
[INFO] [stdout]   --> examples/demo.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |                            ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Tuner` in this scope
[INFO] [stdout]   --> examples/demo.rs:16:39
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |                                       ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `slider`
[INFO] [stdout]   --> examples/slider.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/slider.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] warning: type `falvo` should have an upper camel case name
[INFO] [stdout]   --> examples/demo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Falvo`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `demo`
[INFO] [stdout]   --> examples/demo.rs:24:2
[INFO] [stdout]    |
[INFO] [stdout] 24 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `examples/demo.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `falvo` (example "slider") due to 6 previous errors
[INFO] [stdout] error[E0107]: missing generics for struct `falvo`
[INFO] [stdout]   --> examples/demo.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo where W : Widget, T :Tuner {
[INFO] [stdout]    |            ^^^^^ expected 2 generic arguments
[INFO] [stdout]    |
[INFO] [stdout] note: struct defined here, with 2 generic parameters: `W`, `T`
[INFO] [stdout]   --> examples/demo.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct falvo<W, T> {
[INFO] [stdout]    |            ^^^^^ -  -
[INFO] [stdout] help: add missing generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl<W, T> falvo<W, T> where W : Widget, T :Tuner {
[INFO] [stdout]    |                 ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0405, E0412, E0422, E0601.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `falvo` (example "demo") due to 9 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a57b2befc9d376b5ef0f714355d639f96a8795de0e78751866c5a060b741f1c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a57b2befc9d376b5ef0f714355d639f96a8795de0e78751866c5a060b741f1c3", kill_on_drop: false }`
[INFO] [stdout] a57b2befc9d376b5ef0f714355d639f96a8795de0e78751866c5a060b741f1c3
