[INFO] fetching crate barg 0.2.0...
[INFO] testing barg-0.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate barg 0.2.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate barg 0.2.0 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 barg 0.2.0
[INFO] finished tweaking crates.io crate barg 0.2.0
[INFO] tweaked toml for crates.io crate barg 0.2.0 written to /workspace/builds/worker-78/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] [stderr]     Blocking waiting for file lock on package cache
[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 inflate v0.3.4
[INFO] [stderr]   Downloaded png v0.14.1
[INFO] [stderr]   Downloaded miniz_oxide v0.2.3
[INFO] [stderr]   Downloaded png v0.10.0
[INFO] [stderr]   Downloaded res v0.4.1
[INFO] [stderr]   Downloaded png_pong v0.0.2
[INFO] [stderr]   Downloaded rvg v0.0.2
[INFO] [stderr]   Downloaded window v0.2.0
[INFO] [stderr]   Downloaded sheep v0.2.1
[INFO] [stderr]   Downloaded footile v0.3.1
[INFO] [stderr]   Downloaded pix v0.6.1
[INFO] [stderr]   Downloaded fonterator v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 38c8dfbd8b5be13b6f193ae8a7acf56d1f5339abeb8fe8c92724a908dfe09632
[INFO] running `Command { std: "docker" "start" "-a" "38c8dfbd8b5be13b6f193ae8a7acf56d1f5339abeb8fe8c92724a908dfe09632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38c8dfbd8b5be13b6f193ae8a7acf56d1f5339abeb8fe8c92724a908dfe09632", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c8dfbd8b5be13b6f193ae8a7acf56d1f5339abeb8fe8c92724a908dfe09632", kill_on_drop: false }`
[INFO] [stdout] 38c8dfbd8b5be13b6f193ae8a7acf56d1f5339abeb8fe8c92724a908dfe09632
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] f6fab74bd0935f2db4ff80d1bc5f1ae67c7ff7885689ec6ecd3ef536d9f5800a
[INFO] running `Command { std: "docker" "start" "-a" "f6fab74bd0935f2db4ff80d1bc5f1ae67c7ff7885689ec6ecd3ef536d9f5800a", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling pix v0.6.1
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling window v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling miniz_oxide v0.2.3
[INFO] [stderr]    Compiling tinyvec v1.3.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling png_pong v0.0.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling png v0.10.0
[INFO] [stderr]    Compiling footile v0.3.1
[INFO] [stderr]    Compiling fonterator v0.4.2
[INFO] [stderr]    Compiling rvg v0.0.2
[INFO] [stderr]    Compiling sheep v0.2.1
[INFO] [stderr]    Compiling res v0.4.1
[INFO] [stderr]    Compiling barg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/gui.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |   type Generator<'b> = Fn(
[INFO] [stdout]   |  ______________________^
[INFO] [stdout] 6 | |             usize,
[INFO] [stdout] 7 | |             &mut [u8; 5],
[INFO] [stdout] 8 | |         )
[INFO] [stdout] 9 | |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   | |_____________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Generator<'b> = dyn Fn(
[INFO] [stdout] 6 |             usize,
[INFO] [stdout] 7 |             &mut [u8; 5],
[INFO] [stdout] 8 |         )
[INFO] [stdout] 9 |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.17s
[INFO] running `Command { std: "docker" "inspect" "f6fab74bd0935f2db4ff80d1bc5f1ae67c7ff7885689ec6ecd3ef536d9f5800a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6fab74bd0935f2db4ff80d1bc5f1ae67c7ff7885689ec6ecd3ef536d9f5800a", kill_on_drop: false }`
[INFO] [stdout] f6fab74bd0935f2db4ff80d1bc5f1ae67c7ff7885689ec6ecd3ef536d9f5800a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b808c560b7af488bb67e064122a04f74436ffc98fd2d0a988b173679d62f2dcc
[INFO] running `Command { std: "docker" "start" "-a" "b808c560b7af488bb67e064122a04f74436ffc98fd2d0a988b173679d62f2dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/gui.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |   type Generator<'b> = Fn(
[INFO] [stdout]   |  ______________________^
[INFO] [stdout] 6 | |             usize,
[INFO] [stdout] 7 | |             &mut [u8; 5],
[INFO] [stdout] 8 | |         )
[INFO] [stdout] 9 | |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   | |_____________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Generator<'b> = dyn Fn(
[INFO] [stdout] 6 |             usize,
[INFO] [stdout] 7 |             &mut [u8; 5],
[INFO] [stdout] 8 |         )
[INFO] [stdout] 9 |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling barg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/gui.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 |   type Generator<'b> = Fn(
[INFO] [stdout]   |  ______________________^
[INFO] [stdout] 6 | |             usize,
[INFO] [stdout] 7 | |             &mut [u8; 5],
[INFO] [stdout] 8 | |         )
[INFO] [stdout] 9 | |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   | |_____________________________________________________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) 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] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 5 | type Generator<'b> = dyn Fn(
[INFO] [stdout] 6 |             usize,
[INFO] [stdout] 7 |             &mut [u8; 5],
[INFO] [stdout] 8 |         )
[INFO] [stdout] 9 |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> examples/gui.rs:34:43
[INFO] [stdout]    |
[INFO] [stdout] 34 |     gui.head(&mut surface, &mut buffer, &|row, color| {
[INFO] [stdout]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.20s
[INFO] running `Command { std: "docker" "inspect" "b808c560b7af488bb67e064122a04f74436ffc98fd2d0a988b173679d62f2dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b808c560b7af488bb67e064122a04f74436ffc98fd2d0a988b173679d62f2dcc", kill_on_drop: false }`
[INFO] [stdout] b808c560b7af488bb67e064122a04f74436ffc98fd2d0a988b173679d62f2dcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b825cdc535682bd9e17680c911f60771a3ed846dbe3cccb5cbdf7428b8e85312
[INFO] running `Command { std: "docker" "start" "-a" "b825cdc535682bd9e17680c911f60771a3ed846dbe3cccb5cbdf7428b8e85312", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/gui.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 |   type Generator<'b> = Fn(
[INFO] [stderr]   |  ______________________^
[INFO] [stderr] 6 | |             usize,
[INFO] [stderr] 7 | |             &mut [u8; 5],
[INFO] [stderr] 8 | |         )
[INFO] [stderr] 9 | |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stderr]   | |_____________________________________________________________^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 5 | type Generator<'b> = dyn Fn(
[INFO] [stderr] 6 |             usize,
[INFO] [stderr] 7 |             &mut [u8; 5],
[INFO] [stderr] 8 |         )
[INFO] [stderr] 9 |             -> &'b [(&'b [([u8; 4], &'b [PathOp])], &'b str)];
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `barg` (lib) generated 1 warning
[INFO] [stderr] warning: `barg` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: unused variable: `row`
[INFO] [stderr]   --> examples/gui.rs:34:43
[INFO] [stderr]    |
[INFO] [stderr] 34 |     gui.head(&mut surface, &mut buffer, &|row, color| {
[INFO] [stderr]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `barg` (example "gui") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/barg-de507e8b3e5ad258)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests barg
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/gui.rs - gui::Gui (line 42) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/gui.rs - gui::Gui (line 42) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Widget`
[INFO] [stdout]   --> src/gui.rs:60:34
[INFO] [stdout]    |
[INFO] [stdout] 20 | let header = gui.add(0x303030FF, Widget::Row);
[INFO] [stdout]    |                                  ^^^^^^ use of undeclared type `Widget`
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Widget` in this scope
[INFO] [stdout]  --> src/gui.rs:43:36
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn generator(row: usize) -> Option<Widget> {
[INFO] [stdout]   |             -                      ^^^^^^ not found in this scope
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: you might be missing a type parameter: `<Widget>`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Gui`
[INFO] [stdout]  --> src/gui.rs:47:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | let mut gui = Gui::new();
[INFO] [stdout]   |               ^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 | use barg::Gui;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/gui.rs - gui::Gui (line 42)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "b825cdc535682bd9e17680c911f60771a3ed846dbe3cccb5cbdf7428b8e85312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b825cdc535682bd9e17680c911f60771a3ed846dbe3cccb5cbdf7428b8e85312", kill_on_drop: false }`
[INFO] [stdout] b825cdc535682bd9e17680c911f60771a3ed846dbe3cccb5cbdf7428b8e85312
