[INFO] fetching crate neust 0.0.1...
[INFO] checking neust-0.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate neust 0.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate neust 0.0.1 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 neust 0.0.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate neust 0.0.1
[INFO] tweaked toml for crates.io crate neust 0.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate neust 0.0.1 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 wasm-bindgen-shared v0.2.79
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.79
[INFO] [stderr]   Downloaded cpufeatures v0.2.1
[INFO] [stderr]   Downloaded inout v0.1.2
[INFO] [stderr]   Downloaded async-trait v0.1.52
[INFO] [stderr]   Downloaded tracing-core v0.1.22
[INFO] [stderr]   Downloaded aes v0.8.0
[INFO] [stderr]   Downloaded rustls v0.20.3
[INFO] [stderr]   Downloaded web-sys v0.3.56
[INFO] [stderr]   Downloaded libc v0.2.118
[INFO] [stderr]   Downloaded tokio v1.16.1
[INFO] [stderr]   Downloaded h2 v0.3.11
[INFO] [stderr]   Downloaded hyper v0.14.17
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.79
[INFO] [stderr]   Downloaded webpki-roots v0.22.2
[INFO] [stderr]   Downloaded tracing v0.1.30
[INFO] [stderr]   Downloaded js-sys v0.3.56
[INFO] [stderr]   Downloaded reqwest v0.11.9
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded getrandom v0.2.4
[INFO] [stderr]   Downloaded httparse v1.6.0
[INFO] [stderr]   Downloaded tokio-rustls v0.23.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.79
[INFO] [stderr]   Downloaded rustls-pemfile v0.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.29
[INFO] [stderr]   Downloaded crypto-common v0.1.2
[INFO] [stderr]   Downloaded cipher v0.4.0
[INFO] [stderr]   Downloaded cfb-mode v0.8.0
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded sealed v0.4.0
[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] 534408d08416c8d698734e89b1cc5bf613b13191e45aef3fa192f679e234b272
[INFO] running `Command { std: "docker" "start" "-a" "534408d08416c8d698734e89b1cc5bf613b13191e45aef3fa192f679e234b272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "534408d08416c8d698734e89b1cc5bf613b13191e45aef3fa192f679e234b272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534408d08416c8d698734e89b1cc5bf613b13191e45aef3fa192f679e234b272", kill_on_drop: false }`
[INFO] [stdout] 534408d08416c8d698734e89b1cc5bf613b13191e45aef3fa192f679e234b272
[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] 9373e741b33cdba11b9e641529bab5b73537db4c47c6f68a80a6038b38faa40d
[INFO] running `Command { std: "docker" "start" "-a" "9373e741b33cdba11b9e641529bab5b73537db4c47c6f68a80a6038b38faa40d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tracing v0.1.30
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking publicsuffix v2.1.1
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling sealed v0.4.0
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.27
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking cookie v0.15.1
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.11
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.17
[INFO] [stderr]     Checking cookie_store v0.15.1
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.9
[INFO] [stderr]     Checking neust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]  --> tests/perform_request.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio;
[INFO] [stdout]   |     ^^^^^ the item `tokio` is already defined by prelude
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.03s
[INFO] running `Command { std: "docker" "inspect" "9373e741b33cdba11b9e641529bab5b73537db4c47c6f68a80a6038b38faa40d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9373e741b33cdba11b9e641529bab5b73537db4c47c6f68a80a6038b38faa40d", kill_on_drop: false }`
[INFO] [stdout] 9373e741b33cdba11b9e641529bab5b73537db4c47c6f68a80a6038b38faa40d