[INFO] fetching crate rust-pushrod 0.4.27...
[INFO] checking rust-pushrod-0.4.27 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate rust-pushrod 0.4.27 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rust-pushrod 0.4.27 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-pushrod 0.4.27
[INFO] finished tweaking crates.io crate rust-pushrod 0.4.27
[INFO] tweaked toml for crates.io crate rust-pushrod 0.4.27 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate rust-pushrod 0.4.27 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.33.0
[INFO] [stderr]   Downloaded sdl2-sys v0.33.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56587dd221846ba62c0401a6630b5a6faf070a7a492fef581f1e9e3d3c8278b1
[INFO] running `Command { std: "docker" "start" "-a" "56587dd221846ba62c0401a6630b5a6faf070a7a492fef581f1e9e3d3c8278b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56587dd221846ba62c0401a6630b5a6faf070a7a492fef581f1e9e3d3c8278b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56587dd221846ba62c0401a6630b5a6faf070a7a492fef581f1e9e3d3c8278b1", kill_on_drop: false }`
[INFO] [stdout] 56587dd221846ba62c0401a6630b5a6faf070a7a492fef581f1e9e3d3c8278b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be6817d66788e21da01ff6f43cb7ce2f0e6673f5957cfa07962e050887f35195
[INFO] running `Command { std: "docker" "start" "-a" "be6817d66788e21da01ff6f43cb7ce2f0e6673f5957cfa07962e050887f35195", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]     Checking rust-pushrod v0.4.27 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `CONFIG_BORDER_WIDTH`, `CONFIG_COLOR_BORDER`
[INFO] [stdout]  --> examples/tile.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CONFIG_BORDER_WIDTH, CONFIG_COLOR_BORDER, CONFIG_COLOR_HOVER, CONFIG_COLOR_SELECTED,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> examples/exit.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     engine.on_exit(|engine| {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[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] [stdout] warning: unused import: `CONFIG_COLOR_SECONDARY`
[INFO] [stdout]  --> examples/list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CONFIG_COLOR_SECONDARY,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LayoutPosition`
[INFO] [stdout]  --> examples/layout.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 8 | use pushrod::render::layout::{Layout, LayoutPosition};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/list.rs:37:26
[INFO] [stdout]    |
[INFO] [stdout] 37 |     widget1.on_selected(|x, _widgets, _layout, selected_item| {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CONFIG_BORDER_WIDTH`, `CONFIG_COLOR_BORDER`, `CONFIG_COLOR_SECONDARY`
[INFO] [stdout]  --> examples/tab_bar.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CONFIG_BORDER_WIDTH, CONFIG_COLOR_BASE, CONFIG_COLOR_BORDER, CONFIG_COLOR_HOVER,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     CONFIG_COLOR_SECONDARY,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pushrod::widgets::list_widget::*`
[INFO] [stdout]   --> examples/tab_bar.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use pushrod::widgets::list_widget::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "be6817d66788e21da01ff6f43cb7ce2f0e6673f5957cfa07962e050887f35195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6817d66788e21da01ff6f43cb7ce2f0e6673f5957cfa07962e050887f35195", kill_on_drop: false }`
[INFO] [stdout] be6817d66788e21da01ff6f43cb7ce2f0e6673f5957cfa07962e050887f35195
[INFO] checking rust-pushrod-0.4.27 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate rust-pushrod 0.4.27 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate rust-pushrod 0.4.27 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-pushrod 0.4.27
[INFO] finished tweaking crates.io crate rust-pushrod 0.4.27
[INFO] tweaked toml for crates.io crate rust-pushrod 0.4.27 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate rust-pushrod 0.4.27 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93a6af9b2b8b67b1de911fc12b3f63e0755b42b954e1c27fcee5334d15d1858e
[INFO] running `Command { std: "docker" "start" "-a" "93a6af9b2b8b67b1de911fc12b3f63e0755b42b954e1c27fcee5334d15d1858e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93a6af9b2b8b67b1de911fc12b3f63e0755b42b954e1c27fcee5334d15d1858e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a6af9b2b8b67b1de911fc12b3f63e0755b42b954e1c27fcee5334d15d1858e", kill_on_drop: false }`
[INFO] [stdout] 93a6af9b2b8b67b1de911fc12b3f63e0755b42b954e1c27fcee5334d15d1858e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 277553557ea9c1d0f277dd5bbce77a7b45b6982ad091d93573491bef1b1439a1
[INFO] running `Command { std: "docker" "start" "-a" "277553557ea9c1d0f277dd5bbce77a7b45b6982ad091d93573491bef1b1439a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sdl2 v0.33.0
[INFO] [stderr]    Compiling sdl2-sys v0.33.0
[INFO] [stderr]     Checking rust-pushrod v0.4.27 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `engine`
[INFO] [stdout]   --> examples/exit.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     engine.on_exit(|engine| {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_engine`
[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: unused import: `CONFIG_COLOR_SECONDARY`
[INFO] [stdout]  --> examples/list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CONFIG_COLOR_SECONDARY,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/list.rs:37:26
[INFO] [stdout]    |
[INFO] [stdout] 37 |     widget1.on_selected(|x, _widgets, _layout, selected_item| {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CONFIG_BORDER_WIDTH`, `CONFIG_COLOR_BORDER`, `CONFIG_COLOR_SECONDARY`
[INFO] [stdout]  --> examples/tab_bar.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CONFIG_BORDER_WIDTH, CONFIG_COLOR_BASE, CONFIG_COLOR_BORDER, CONFIG_COLOR_HOVER,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     CONFIG_COLOR_SECONDARY,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pushrod::widgets::list_widget::*`
[INFO] [stdout]   --> examples/tab_bar.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use pushrod::widgets::list_widget::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LayoutPosition`
[INFO] [stdout]  --> examples/layout.rs:8:39
[INFO] [stdout]   |
[INFO] [stdout] 8 | use pushrod::render::layout::{Layout, LayoutPosition};
[INFO] [stdout]   |                                       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CONFIG_BORDER_WIDTH`, `CONFIG_COLOR_BORDER`
[INFO] [stdout]  --> examples/tile.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CONFIG_BORDER_WIDTH, CONFIG_COLOR_BORDER, CONFIG_COLOR_HOVER, CONFIG_COLOR_SELECTED,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "277553557ea9c1d0f277dd5bbce77a7b45b6982ad091d93573491bef1b1439a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "277553557ea9c1d0f277dd5bbce77a7b45b6982ad091d93573491bef1b1439a1", kill_on_drop: false }`
[INFO] [stdout] 277553557ea9c1d0f277dd5bbce77a7b45b6982ad091d93573491bef1b1439a1