[INFO] fetching crate x11rb-async 0.12.0...
[INFO] checking x11rb-async-0.12.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate x11rb-async 0.12.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate x11rb-async 0.12.0 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 x11rb-async 0.12.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate x11rb-async 0.12.0
[INFO] tweaked toml for crates.io crate x11rb-async 0.12.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate x11rb-async 0.12.0 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 as-raw-xcb-connection v1.0.0
[INFO] [stderr]   Downloaded gethostname v0.3.0
[INFO] [stderr]   Downloaded regex v1.8.3
[INFO] [stderr]   Downloaded x11rb v0.12.0
[INFO] [stderr]   Downloaded x11rb-protocol v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3e4c1b5520136933a1103893de2c2953c103d1198956fa4030b6161837818adb
[INFO] running `Command { std: "docker" "start" "-a" "3e4c1b5520136933a1103893de2c2953c103d1198956fa4030b6161837818adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e4c1b5520136933a1103893de2c2953c103d1198956fa4030b6161837818adb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4c1b5520136933a1103893de2c2953c103d1198956fa4030b6161837818adb", kill_on_drop: false }`
[INFO] [stdout] 3e4c1b5520136933a1103893de2c2953c103d1198956fa4030b6161837818adb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] edd91eb7866be1ecd34ead06f9fc19aaaacda93f05fbf73f49b58434f9d6f927
[INFO] running `Command { std: "docker" "start" "-a" "edd91eb7866be1ecd34ead06f9fc19aaaacda93f05fbf73f49b58434f9d6f927", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking parking v2.1.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking async-lock v2.7.0
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling rustix v0.37.19
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking async-task v4.4.0
[INFO] [stderr]    Compiling x11rb v0.12.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking concurrent-queue v2.2.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking atomic-waker v1.1.1
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking async-channel v1.8.0
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking blocking v1.3.1
[INFO] [stderr]     Checking async-executor v1.5.1
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking gethostname v0.3.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking regex v1.8.3
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking x11rb-protocol v0.12.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking x11rb-async v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/connection.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::boxed::Box;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Box` is imported redundantly
[INFO] [stdout]   --> src/connection.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::boxed::Box;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Box` is already defined here
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.13s
[INFO] running `Command { std: "docker" "inspect" "edd91eb7866be1ecd34ead06f9fc19aaaacda93f05fbf73f49b58434f9d6f927", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edd91eb7866be1ecd34ead06f9fc19aaaacda93f05fbf73f49b58434f9d6f927", kill_on_drop: false }`
[INFO] [stdout] edd91eb7866be1ecd34ead06f9fc19aaaacda93f05fbf73f49b58434f9d6f927