[INFO] fetching crate barg 0.2.0...
[INFO] testing barg-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate barg 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate barg 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f47160dd32e1ae81910bc2b7f34fd45cb2c36eab2cc7210b0dd24941f63aeb0
[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" "2f47160dd32e1ae81910bc2b7f34fd45cb2c36eab2cc7210b0dd24941f63aeb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f47160dd32e1ae81910bc2b7f34fd45cb2c36eab2cc7210b0dd24941f63aeb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f47160dd32e1ae81910bc2b7f34fd45cb2c36eab2cc7210b0dd24941f63aeb0", kill_on_drop: false }`
[INFO] [stdout] 2f47160dd32e1ae81910bc2b7f34fd45cb2c36eab2cc7210b0dd24941f63aeb0
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7cc92e4e9fffdb4f206ed0b5830c2bfbd7f4a3ed7d9cf946315fa07679ff63e
[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" "b7cc92e4e9fffdb4f206ed0b5830c2bfbd7f4a3ed7d9cf946315fa07679ff63e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pix v0.6.1
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling window v0.2.0
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling miniz_oxide v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling sheep v0.2.1
[INFO] [stderr]    Compiling png_pong v0.0.2
[INFO] [stderr]    Compiling png v0.10.0
[INFO] [stderr]    Compiling footile v0.3.1
[INFO] [stderr]    Compiling res v0.4.1
[INFO] [stderr]    Compiling rvg v0.0.2
[INFO] [stderr]    Compiling fonterator v0.4.2
[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] 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 12.58s
[INFO] running `Command { std: "docker" "inspect" "b7cc92e4e9fffdb4f206ed0b5830c2bfbd7f4a3ed7d9cf946315fa07679ff63e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7cc92e4e9fffdb4f206ed0b5830c2bfbd7f4a3ed7d9cf946315fa07679ff63e", kill_on_drop: false }`
[INFO] [stdout] b7cc92e4e9fffdb4f206ed0b5830c2bfbd7f4a3ed7d9cf946315fa07679ff63e
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50564bd959642f73672671d0a39c610f4a580ee34e3d4acd15c34fa7093cc62c
[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" "50564bd959642f73672671d0a39c610f4a580ee34e3d4acd15c34fa7093cc62c", kill_on_drop: false }`
[INFO] [stderr]    Compiling png v0.14.1
[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] 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 barg v0.2.0 (/opt/rustwide/workdir)
[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: 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] 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.95s
[INFO] running `Command { std: "docker" "inspect" "50564bd959642f73672671d0a39c610f4a580ee34e3d4acd15c34fa7093cc62c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50564bd959642f73672671d0a39c610f4a580ee34e3d4acd15c34fa7093cc62c", kill_on_drop: false }`
[INFO] [stdout] 50564bd959642f73672671d0a39c610f4a580ee34e3d4acd15c34fa7093cc62c
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a46288649f543325ae7a3a2d0a6654fb687b88a2dce8c58cd3a66ba12a44590e
[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" "a46288649f543325ae7a3a2d0a6654fb687b88a2dce8c58cd3a66ba12a44590e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 1 test
[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] 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: 1 warning emitted
[INFO] [stderr] 
[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] 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: 1 warning emitted
[INFO] [stderr] 
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/barg-9cf733f27d0a16a1
[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 0.13s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "a46288649f543325ae7a3a2d0a6654fb687b88a2dce8c58cd3a66ba12a44590e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46288649f543325ae7a3a2d0a6654fb687b88a2dce8c58cd3a66ba12a44590e", kill_on_drop: false }`
[INFO] [stdout] a46288649f543325ae7a3a2d0a6654fb687b88a2dce8c58cd3a66ba12a44590e