[INFO] fetching crate enr 0.10.0...
[INFO] checking enr-0.10.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate enr 0.10.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate enr 0.10.0 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 enr 0.10.0
[INFO] finished tweaking crates.io crate enr 0.10.0
[INFO] tweaked toml for crates.io crate enr 0.10.0 written to /workspace/builds/worker-0-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]      Locking 64 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding secp256k1 v0.27.0 (latest: v0.29.0)
[INFO] [stderr]       Adding secp256k1-sys v0.8.1 (latest: v0.10.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded k256 v0.13.3
[INFO] [stderr]   Downloaded const-oid v0.9.6
[INFO] [stderr]   Downloaded signature v2.2.0
[INFO] [stderr]   Downloaded rlp v0.5.2
[INFO] [stderr]   Downloaded rustc-hex v2.1.0
[INFO] [stderr]   Downloaded ed25519 v2.2.3
[INFO] [stderr]   Downloaded base16ct v0.2.0
[INFO] [stderr]   Downloaded spki v0.7.3
[INFO] [stderr]   Downloaded sec1 v0.7.3
[INFO] [stderr]   Downloaded curve25519-dalek-derive v0.1.1
[INFO] [stderr]   Downloaded ed25519-dalek v2.1.1
[INFO] [stderr]   Downloaded rfc6979 v0.4.0
[INFO] [stderr]   Downloaded der v0.7.9
[INFO] [stderr]   Downloaded fiat-crypto v0.2.7
[INFO] [stderr]   Downloaded sha3 v0.10.8
[INFO] [stderr]   Downloaded curve25519-dalek v4.1.2
[INFO] [stderr]   Downloaded ecdsa v0.16.9
[INFO] [stderr]   Downloaded crypto-bigint v0.5.5
[INFO] [stderr]   Downloaded elliptic-curve v0.13.8
[INFO] [stderr]   Downloaded platforms v3.4.0
[INFO] [stderr]   Downloaded ff v0.13.0
[INFO] [stderr]   Downloaded group v0.13.0
[INFO] [stderr]   Downloaded base64ct v1.6.0
[INFO] [stderr]   Downloaded pkcs8 v0.10.2
[INFO] [stderr]   Downloaded secp256k1-sys v0.8.1
[INFO] [stderr]   Downloaded secp256k1 v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 19c338423a174ffc08f574f49808b7f4b09f93aa33ef98f224b33d47e83b5c3d
[INFO] running `Command { std: "docker" "start" "-a" "19c338423a174ffc08f574f49808b7f4b09f93aa33ef98f224b33d47e83b5c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19c338423a174ffc08f574f49808b7f4b09f93aa33ef98f224b33d47e83b5c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19c338423a174ffc08f574f49808b7f4b09f93aa33ef98f224b33d47e83b5c3d", kill_on_drop: false }`
[INFO] [stdout] 19c338423a174ffc08f574f49808b7f4b09f93aa33ef98f224b33d47e83b5c3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a880b7bad0dd73ee349ec8083d3dfd6a2015c68286beff4e476c4ce6a764b4b5
[INFO] running `Command { std: "docker" "start" "-a" "a880b7bad0dd73ee349ec8083d3dfd6a2015c68286beff4e476c4ce6a764b4b5", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling secp256k1-sys v0.8.1
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking rlp v0.5.2
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking k256 v0.13.3
[INFO] [stderr]     Checking secp256k1 v0.27.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking enr v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ipv4Addr` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1117:9
[INFO] [stdout]      |
[INFO] [stdout] 1115 |     use super::*;
[INFO] [stdout]      |         -------- the item `Ipv4Addr` is already imported here
[INFO] [stdout] 1116 |     use std::convert::TryFrom;
[INFO] [stdout] 1117 |     use std::net::Ipv4Addr;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^
[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 22.20s
[INFO] running `Command { std: "docker" "inspect" "a880b7bad0dd73ee349ec8083d3dfd6a2015c68286beff4e476c4ce6a764b4b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a880b7bad0dd73ee349ec8083d3dfd6a2015c68286beff4e476c4ce6a764b4b5", kill_on_drop: false }`
[INFO] [stdout] a880b7bad0dd73ee349ec8083d3dfd6a2015c68286beff4e476c4ce6a764b4b5
[INFO] checking enr-0.10.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate enr 0.10.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate enr 0.10.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enr 0.10.0
[INFO] finished tweaking crates.io crate enr 0.10.0
[INFO] tweaked toml for crates.io crate enr 0.10.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd11ebc29a46529556a778b60fdd16d3ea011ba0d6200fd47a996d20ceb14659
[INFO] running `Command { std: "docker" "start" "-a" "bd11ebc29a46529556a778b60fdd16d3ea011ba0d6200fd47a996d20ceb14659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd11ebc29a46529556a778b60fdd16d3ea011ba0d6200fd47a996d20ceb14659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd11ebc29a46529556a778b60fdd16d3ea011ba0d6200fd47a996d20ceb14659", kill_on_drop: false }`
[INFO] [stdout] bd11ebc29a46529556a778b60fdd16d3ea011ba0d6200fd47a996d20ceb14659
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdb6d41b44d93915be9f1724367ec6999fb0a9daf5d820bffc72d3933462daf0
[INFO] running `Command { std: "docker" "start" "-a" "cdb6d41b44d93915be9f1724367ec6999fb0a9daf5d820bffc72d3933462daf0", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking const-oid v0.9.6
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling secp256k1-sys v0.8.1
[INFO] [stderr]     Checking keccak v0.1.5
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking der v0.7.9
[INFO] [stderr]     Checking rlp v0.5.2
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking spki v0.7.3
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking k256 v0.13.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking secp256k1 v0.27.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking enr v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Ipv4Addr` is imported redundantly
[INFO] [stdout]     --> src/lib.rs:1117:9
[INFO] [stdout]      |
[INFO] [stdout] 1115 |     use super::*;
[INFO] [stdout]      |         -------- the item `Ipv4Addr` is already imported here
[INFO] [stdout] 1116 |     use std::convert::TryFrom;
[INFO] [stdout] 1117 |     use std::net::Ipv4Addr;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^
[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 21.10s
[INFO] running `Command { std: "docker" "inspect" "cdb6d41b44d93915be9f1724367ec6999fb0a9daf5d820bffc72d3933462daf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb6d41b44d93915be9f1724367ec6999fb0a9daf5d820bffc72d3933462daf0", kill_on_drop: false }`
[INFO] [stdout] cdb6d41b44d93915be9f1724367ec6999fb0a9daf5d820bffc72d3933462daf0