[INFO] fetching crate makepad-shell 0.4.0...
[INFO] checking makepad-shell-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate makepad-shell 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate makepad-shell 0.4.0 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 makepad-shell 0.4.0
[INFO] finished tweaking crates.io crate makepad-shell 0.4.0
[INFO] tweaked toml for crates.io crate makepad-shell 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ea545eec1283c9674c68eaa1f88bf291f4ceda4708f0114867c3b474609e27c5
[INFO] running `Command { std: "docker" "start" "-a" "ea545eec1283c9674c68eaa1f88bf291f4ceda4708f0114867c3b474609e27c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea545eec1283c9674c68eaa1f88bf291f4ceda4708f0114867c3b474609e27c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea545eec1283c9674c68eaa1f88bf291f4ceda4708f0114867c3b474609e27c5", kill_on_drop: false }`
[INFO] [stdout] ea545eec1283c9674c68eaa1f88bf291f4ceda4708f0114867c3b474609e27c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a6f7928bbf91de19b868fb8c9646c0375275ba760053e87f4f95964560c65138
[INFO] running `Command { std: "docker" "start" "-a" "a6f7928bbf91de19b868fb8c9646c0375275ba760053e87f4f95964560c65138", kill_on_drop: false }`
[INFO] [stderr]     Checking makepad-shell v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/shell.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Write,Read},
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 5 |     fs,
[INFO] [stdout] 6 |     io::prelude::*,
[INFO] [stdout]   |     -------------- the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/shell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Write,Read},
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 5 |     fs,
[INFO] [stdout] 6 |     io::prelude::*,
[INFO] [stdout]   |     -------------- the item `Read` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/shell.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Write,Read},
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 5 |     fs,
[INFO] [stdout] 6 |     io::prelude::*,
[INFO] [stdout]   |     -------------- the item `Write` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Read` is imported redundantly
[INFO] [stdout]  --> src/shell.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     io::{Write,Read},
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 5 |     fs,
[INFO] [stdout] 6 |     io::prelude::*,
[INFO] [stdout]   |     -------------- the item `Read` is already imported here
[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 0.25s
[INFO] running `Command { std: "docker" "inspect" "a6f7928bbf91de19b868fb8c9646c0375275ba760053e87f4f95964560c65138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f7928bbf91de19b868fb8c9646c0375275ba760053e87f4f95964560c65138", kill_on_drop: false }`
[INFO] [stdout] a6f7928bbf91de19b868fb8c9646c0375275ba760053e87f4f95964560c65138