[INFO] fetching crate toy_xcb 0.2.0-beta.0...
[INFO] checking toy_xcb-0.2.0-beta.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate toy_xcb 0.2.0-beta.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate toy_xcb 0.2.0-beta.0 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 toy_xcb 0.2.0-beta.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate toy_xcb 0.2.0-beta.0
[INFO] tweaked toml for crates.io crate toy_xcb 0.2.0-beta.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate toy_xcb 0.2.0-beta.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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xkbcommon v0.5.0-beta.0
[INFO] [stderr]   Downloaded xcb v1.0.0-beta.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e1ba4037ee66fff4d39f8bc2dc52beec94c1749bafa65ae4514625bffb29ce9f
[INFO] running `Command { std: "docker" "start" "-a" "e1ba4037ee66fff4d39f8bc2dc52beec94c1749bafa65ae4514625bffb29ce9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1ba4037ee66fff4d39f8bc2dc52beec94c1749bafa65ae4514625bffb29ce9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ba4037ee66fff4d39f8bc2dc52beec94c1749bafa65ae4514625bffb29ce9f", kill_on_drop: false }`
[INFO] [stdout] e1ba4037ee66fff4d39f8bc2dc52beec94c1749bafa65ae4514625bffb29ce9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bc2abc09a80e15e8246441cd17f6c1cd6de4a9e8b611317ad5d984abb1960abb
[INFO] running `Command { std: "docker" "start" "-a" "bc2abc09a80e15e8246441cd17f6c1cd6de4a9e8b611317ad5d984abb1960abb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling xcb v1.0.0-beta.0
[INFO] [stderr]     Checking xkbcommon v0.5.0-beta.0
[INFO] [stderr]     Checking toy_xcb v0.2.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]  --> src/keyboard.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xcb;
[INFO] [stdout]   |     ^^^ the item `xcb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]   --> src/window.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use xcb::{self, Xid};
[INFO] [stdout]    |           ^^^^ the item `xcb` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]  --> src/keyboard.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xcb;
[INFO] [stdout]   |     ^^^ the item `xcb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]   --> src/window.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use xcb::{self, Xid};
[INFO] [stdout]    |           ^^^^ the item `xcb` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "bc2abc09a80e15e8246441cd17f6c1cd6de4a9e8b611317ad5d984abb1960abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2abc09a80e15e8246441cd17f6c1cd6de4a9e8b611317ad5d984abb1960abb", kill_on_drop: false }`
[INFO] [stdout] bc2abc09a80e15e8246441cd17f6c1cd6de4a9e8b611317ad5d984abb1960abb
[INFO] checking toy_xcb-0.2.0-beta.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate toy_xcb 0.2.0-beta.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate toy_xcb 0.2.0-beta.0 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 toy_xcb 0.2.0-beta.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate toy_xcb 0.2.0-beta.0
[INFO] tweaked toml for crates.io crate toy_xcb 0.2.0-beta.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate toy_xcb 0.2.0-beta.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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7c6f14fc17c1702e2625806b172f687a440802bdf7da54c2fd1d02cfcdf33a31
[INFO] running `Command { std: "docker" "start" "-a" "7c6f14fc17c1702e2625806b172f687a440802bdf7da54c2fd1d02cfcdf33a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c6f14fc17c1702e2625806b172f687a440802bdf7da54c2fd1d02cfcdf33a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6f14fc17c1702e2625806b172f687a440802bdf7da54c2fd1d02cfcdf33a31", kill_on_drop: false }`
[INFO] [stdout] 7c6f14fc17c1702e2625806b172f687a440802bdf7da54c2fd1d02cfcdf33a31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 40d888b0665b2985657aea718b992621b3647e54212231af377d21808ece9668
[INFO] running `Command { std: "docker" "start" "-a" "40d888b0665b2985657aea718b992621b3647e54212231af377d21808ece9668", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling x11 v2.19.1
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling xcb v1.0.0-beta.0
[INFO] [stderr]     Checking xkbcommon v0.5.0-beta.0
[INFO] [stderr]     Checking toy_xcb v0.2.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]  --> src/keyboard.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xcb;
[INFO] [stdout]   |     ^^^ the item `xcb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]   --> src/window.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use xcb::{self, Xid};
[INFO] [stdout]    |           ^^^^ the item `xcb` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]  --> src/keyboard.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xcb;
[INFO] [stdout]   |     ^^^ the item `xcb` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `xcb` is imported redundantly
[INFO] [stdout]   --> src/window.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use xcb::{self, Xid};
[INFO] [stdout]    |           ^^^^ the item `xcb` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.47s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "40d888b0665b2985657aea718b992621b3647e54212231af377d21808ece9668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d888b0665b2985657aea718b992621b3647e54212231af377d21808ece9668", kill_on_drop: false }`
[INFO] [stdout] 40d888b0665b2985657aea718b992621b3647e54212231af377d21808ece9668