[INFO] fetching crate liboxyd 0.1.4...
[INFO] checking liboxyd-0.1.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate liboxyd 0.1.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate liboxyd 0.1.4 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 liboxyd 0.1.4
[INFO] finished tweaking crates.io crate liboxyd 0.1.4
[INFO] tweaked toml for crates.io crate liboxyd 0.1.4 written to /workspace/builds/worker-6-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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 142 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
[INFO] [stderr]       Adding async-io v1.13.0 (latest: v2.3.2)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding base64ct v1.0.1 (latest: v1.6.0)
[INFO] [stderr]       Adding bip0039 v0.10.1 (latest: v0.12.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding crypto-mac v0.8.0 (latest: v0.11.1)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener v4.0.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener-strategy v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding gloo-timers v0.2.6 (latest: v0.3.0)
[INFO] [stderr]       Adding hmac v0.8.1 (latest: v0.12.1)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (latest: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (latest: v0.6.4)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding password-hash v0.3.2 (latest: v0.5.0)
[INFO] [stderr]       Adding pbkdf2 v0.10.1 (latest: v0.12.2)
[INFO] [stderr]       Adding polling v2.8.0 (latest: v3.6.0)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.32)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding subtle v2.4.1 (latest: v2.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded universal-hash v0.5.1
[INFO] [stderr]   Downloaded aead v0.5.2
[INFO] [stderr]   Downloaded password-hash v0.3.2
[INFO] [stderr]   Downloaded poly1305 v0.8.0
[INFO] [stderr]   Downloaded base64ct v1.0.1
[INFO] [stderr]   Downloaded chacha20poly1305 v0.10.1
[INFO] [stderr]   Downloaded pbkdf2 v0.10.1
[INFO] [stderr]   Downloaded bip0039 v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2129642a7294d36485c60f584014af41be35690382ff0c9b6fcc6d043a18af01
[INFO] running `Command { std: "docker" "start" "-a" "2129642a7294d36485c60f584014af41be35690382ff0c9b6fcc6d043a18af01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2129642a7294d36485c60f584014af41be35690382ff0c9b6fcc6d043a18af01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2129642a7294d36485c60f584014af41be35690382ff0c9b6fcc6d043a18af01", kill_on_drop: false }`
[INFO] [stdout] 2129642a7294d36485c60f584014af41be35690382ff0c9b6fcc6d043a18af01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 60b27f9dc2fb4459e4f622483df312b73010d4433cd76b750e40ecae8cf09ad8
[INFO] running `Command { std: "docker" "start" "-a" "60b27f9dc2fb4459e4f622483df312b73010d4433cd76b750e40ecae8cf09ad8", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling libsecp256k1-core v0.3.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking base64ct v1.0.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking password-hash v0.3.2
[INFO] [stderr]     Checking hmac-drbg v0.3.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking universal-hash v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chacha20 v0.9.1
[INFO] [stderr]     Checking poly1305 v0.8.0
[INFO] [stderr]     Checking aead v0.5.2
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking pbkdf2 v0.10.1
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hkdf v0.12.4
[INFO] [stderr]     Checking chacha20poly1305 v0.10.1
[INFO] [stderr]    Compiling libsecp256k1-gen-ecmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1-gen-genmult v0.3.0
[INFO] [stderr]    Compiling libsecp256k1 v0.7.1
[INFO] [stderr]     Checking bip0039 v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking liboxyd v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `async_std` is imported redundantly
[INFO] [stdout]   --> src/v1/secp256k1/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use async_std;
[INFO] [stdout]    |         ^^^^^^^^^ the item `async_std` 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 29.66s
[INFO] running `Command { std: "docker" "inspect" "60b27f9dc2fb4459e4f622483df312b73010d4433cd76b750e40ecae8cf09ad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b27f9dc2fb4459e4f622483df312b73010d4433cd76b750e40ecae8cf09ad8", kill_on_drop: false }`
[INFO] [stdout] 60b27f9dc2fb4459e4f622483df312b73010d4433cd76b750e40ecae8cf09ad8