[INFO] fetching crate sp-ipld 0.2.0...
[INFO] testing sp-ipld-0.2.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate sp-ipld 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate sp-ipld 0.2.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-ipld 0.2.0
[INFO] finished tweaking crates.io crate sp-ipld 0.2.0
[INFO] tweaked toml for crates.io crate sp-ipld 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytecursor v0.1.2
[INFO] [stderr]   Downloaded sp-multihash-derive v0.2.0
[INFO] [stderr]   Downloaded sp-std v3.0.0
[INFO] [stderr]   Downloaded sp-multihash v0.2.0
[INFO] [stderr]   Downloaded sp-cid v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d67844638d2585b26c12dc7cbacadd0b334ef42e945d36c348975ca173456ab
[INFO] running `Command { std: "docker" "start" "-a" "2d67844638d2585b26c12dc7cbacadd0b334ef42e945d36c348975ca173456ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d67844638d2585b26c12dc7cbacadd0b334ef42e945d36c348975ca173456ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d67844638d2585b26c12dc7cbacadd0b334ef42e945d36c348975ca173456ab", kill_on_drop: false }`
[INFO] [stdout] 2d67844638d2585b26c12dc7cbacadd0b334ef42e945d36c348975ca173456ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed9d0fe655fb338067a81ddfbeee18f56a2a1ec5b09439f2acadaa2ca5e344fb
[INFO] running `Command { std: "docker" "start" "-a" "ed9d0fe655fb338067a81ddfbeee18f56a2a1ec5b09439f2acadaa2ca5e344fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling winnow v0.5.32
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling data-encoding v2.5.0
[INFO] [stderr]    Compiling sp-std v3.0.0
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling keccak v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bytecursor v0.1.2
[INFO] [stderr]    Compiling base-x v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling unsigned-varint v0.7.2
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling blake2s_simd v0.5.11
[INFO] [stderr]    Compiling blake2b_simd v0.5.11
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.12
[INFO] [stderr]    Compiling sp-multihash-derive v0.2.0
[INFO] [stderr]    Compiling data-encoding-macro v0.1.14
[INFO] [stderr]    Compiling multibase v0.9.1
[INFO] [stderr]    Compiling sp-multihash v0.2.0
[INFO] [stderr]    Compiling sp-cid v0.2.0
[INFO] [stderr]    Compiling sp-ipld v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `map_first_last` has been stable since 1.66.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sp-ipld` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ed9d0fe655fb338067a81ddfbeee18f56a2a1ec5b09439f2acadaa2ca5e344fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9d0fe655fb338067a81ddfbeee18f56a2a1ec5b09439f2acadaa2ca5e344fb", kill_on_drop: false }`
[INFO] [stdout] ed9d0fe655fb338067a81ddfbeee18f56a2a1ec5b09439f2acadaa2ca5e344fb
