[INFO] fetching crate retty 0.26.0...
[INFO] checking retty-0.26.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate retty 0.26.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate retty 0.26.0 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 retty 0.26.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate retty 0.26.0
[INFO] tweaked toml for crates.io crate retty 0.26.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate retty 0.26.0 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 async-executor v1.5.4
[INFO] [stderr]   Downloaded parking v2.1.1
[INFO] [stderr]   Downloaded smol v1.3.0
[INFO] [stderr]   Downloaded async-net v1.8.0
[INFO] [stderr]   Downloaded waitgroup v0.1.2
[INFO] [stderr]   Downloaded async-transport v0.4.2
[INFO] [stderr]   Downloaded core_affinity v0.8.1
[INFO] [stderr]   Downloaded rustix v0.37.24
[INFO] [stderr]   Downloaded ctrlc v3.4.1
[INFO] [stderr]   Downloaded local-sync v0.1.1
[INFO] [stderr]   Downloaded async-task v4.4.1
[INFO] [stderr]   Downloaded blocking v1.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e9cea5748586e5a47ef87f2a7a4db619e9fd35462fdb4edbaf345b6d8df9e2ec
[INFO] running `Command { std: "docker" "start" "-a" "e9cea5748586e5a47ef87f2a7a4db619e9fd35462fdb4edbaf345b6d8df9e2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9cea5748586e5a47ef87f2a7a4db619e9fd35462fdb4edbaf345b6d8df9e2ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9cea5748586e5a47ef87f2a7a4db619e9fd35462fdb4edbaf345b6d8df9e2ec", kill_on_drop: false }`
[INFO] [stdout] e9cea5748586e5a47ef87f2a7a4db619e9fd35462fdb4edbaf345b6d8df9e2ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9067afc3c9cf6ba2951b0c0c41b7676478466f9867a655aec2bf3182af816ce8
[INFO] running `Command { std: "docker" "start" "-a" "9067afc3c9cf6ba2951b0c0c41b7676478466f9867a655aec2bf3182af816ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
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[INFO] [stderr]     Checking retty v0.26.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Timer` is imported redundantly
[INFO] [stdout]  --> src/bootstrap/bootstrap_tcp/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Timer` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     Timer,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Timer` is imported redundantly
[INFO] [stdout]  --> src/bootstrap/bootstrap_tcp/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::*;
[INFO] [stdout]   |     -------- the item `Timer` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 4 |     Timer,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `BytesMut` is imported redundantly
[INFO] [stdout]  --> src/transport/transport_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::transport::*;
[INFO] [stdout]   |     ------------------- the item `BytesMut` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 8 | use bytes::BytesMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.40s
[INFO] running `Command { std: "docker" "inspect" "9067afc3c9cf6ba2951b0c0c41b7676478466f9867a655aec2bf3182af816ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9067afc3c9cf6ba2951b0c0c41b7676478466f9867a655aec2bf3182af816ce8", kill_on_drop: false }`
[INFO] [stdout] 9067afc3c9cf6ba2951b0c0c41b7676478466f9867a655aec2bf3182af816ce8