[INFO] fetching crate libipld-core 0.16.0...
[INFO] checking libipld-core-0.16.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate libipld-core 0.16.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate libipld-core 0.16.0
[INFO] finished tweaking crates.io crate libipld-core 0.16.0
[INFO] tweaked toml for crates.io crate libipld-core 0.16.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libipld-core 0.16.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages to latest compatible versions
[INFO] [stderr]       Adding cid v0.10.1 (available: v0.11.1)
[INFO] [stderr]       Adding multihash v0.18.1 (available: v0.19.3)
[INFO] [stderr]       Adding proc-macro-crate v1.1.3 (available: v1.3.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fd88b10913012386b664e72cb687a782cd2d3d8e8dec9f70dce8af9f9d21a5d
[INFO] running `Command { std: "docker" "start" "-a" "7fd88b10913012386b664e72cb687a782cd2d3d8e8dec9f70dce8af9f9d21a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fd88b10913012386b664e72cb687a782cd2d3d8e8dec9f70dce8af9f9d21a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd88b10913012386b664e72cb687a782cd2d3d8e8dec9f70dce8af9f9d21a5d", kill_on_drop: false }`
[INFO] [stdout] 7fd88b10913012386b664e72cb687a782cd2d3d8e8dec9f70dce8af9f9d21a5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 854031bb9ece9163fc1b5791725e8b202de27459784d000a33204fd97fde856a
[INFO] running `Command { std: "docker" "start" "-a" "854031bb9ece9163fc1b5791725e8b202de27459784d000a33204fd97fde856a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling data-encoding v2.9.0
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking constant_time_eq v0.3.1
[INFO] [stderr]     Checking arrayref v0.3.9
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking unsigned-varint v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.16
[INFO] [stderr]     Checking data-encoding-macro v0.1.18
[INFO] [stderr]     Checking multibase v0.9.1
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stderr]     Checking serde_bytes v0.11.17
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]    Compiling multihash-derive v0.8.1
[INFO] [stderr]     Checking multihash v0.18.1
[INFO] [stderr]     Checking cid v0.10.1
[INFO] [stderr]     Checking libipld-core v0.16.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stdout]   --> src/codec.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         self.deref().encode(c, w)
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(suspicious_double_ref_op)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libipld-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stdout]   --> src/codec.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         self.deref().encode(c, w)
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(suspicious_double_ref_op)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libipld-core` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "854031bb9ece9163fc1b5791725e8b202de27459784d000a33204fd97fde856a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854031bb9ece9163fc1b5791725e8b202de27459784d000a33204fd97fde856a", kill_on_drop: false }`
[INFO] [stdout] 854031bb9ece9163fc1b5791725e8b202de27459784d000a33204fd97fde856a