[INFO] fetching crate kraken_ws_client 0.23.0...
[INFO] checking kraken_ws_client-0.23.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate kraken_ws_client 0.23.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate kraken_ws_client 0.23.0 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 kraken_ws_client 0.23.0
[INFO] finished tweaking crates.io crate kraken_ws_client 0.23.0
[INFO] tweaked toml for crates.io crate kraken_ws_client 0.23.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate kraken_ws_client 0.23.0 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 data-encoding v2.4.0
[INFO] [stderr]   Downloaded block-buffer v0.10.3
[INFO] [stderr]   Downloaded tungstenite v0.20.0
[INFO] [stderr]   Downloaded cpufeatures v0.2.5
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded unicode-normalization v0.1.18
[INFO] [stderr]   Downloaded rust_decimal_macros v1.30.0
[INFO] [stderr]   Downloaded ahash v0.7.4
[INFO] [stderr]   Downloaded rustls-webpki v0.101.2
[INFO] [stderr]   Downloaded rend v0.4.0
[INFO] [stderr]   Downloaded tokio v1.16.1
[INFO] [stderr]   Downloaded rkyv_derive v0.7.40
[INFO] [stderr]   Downloaded rkyv v0.7.40
[INFO] [stderr]   Downloaded rust_decimal v1.30.0
[INFO] [stderr]   Downloaded serde_repr v0.1.16
[INFO] [stderr]   Downloaded tokio-tungstenite v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f4f7bbfcb00964527e193036919ab9645e5cbfd52947803c224ee9f6f6c5cc0b
[INFO] running `Command { std: "docker" "start" "-a" "f4f7bbfcb00964527e193036919ab9645e5cbfd52947803c224ee9f6f6c5cc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4f7bbfcb00964527e193036919ab9645e5cbfd52947803c224ee9f6f6c5cc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f7bbfcb00964527e193036919ab9645e5cbfd52947803c224ee9f6f6c5cc0b", kill_on_drop: false }`
[INFO] [stdout] f4f7bbfcb00964527e193036919ab9645e5cbfd52947803c224ee9f6f6c5cc0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] db9a7bf42dc91db589392e8adaf958bf32c96e5490ae8a840156d15230f271bb
[INFO] running `Command { std: "docker" "start" "-a" "db9a7bf42dc91db589392e8adaf958bf32c96e5490ae8a840156d15230f271bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking unicode-normalization v0.1.18
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling rust_decimal v1.30.0
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking digest v0.10.5
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking data-encoding v2.4.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]    Compiling rust_decimal_macros v1.30.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling rustls v0.21.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling serde_repr v0.1.16
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.101.2
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking webpki-roots v0.23.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tungstenite v0.20.0
[INFO] [stderr]     Checking tokio-util v0.7.2
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking tokio-tungstenite v0.20.0
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking kraken_ws_client v0.23.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.37s
[INFO] running `Command { std: "docker" "inspect" "db9a7bf42dc91db589392e8adaf958bf32c96e5490ae8a840156d15230f271bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db9a7bf42dc91db589392e8adaf958bf32c96e5490ae8a840156d15230f271bb", kill_on_drop: false }`
[INFO] [stdout] db9a7bf42dc91db589392e8adaf958bf32c96e5490ae8a840156d15230f271bb