[INFO] fetching crate sp-ipld 0.2.0...
[INFO] testing sp-ipld-0.2.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate sp-ipld 0.2.0 into /workspace/builds/worker-4-tc1/source
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sp-ipld 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
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[INFO] [stderr]      Locking 233 packages to latest compatible versions
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff829de1cd81bc8a77fcc3332976370d3bbbaeace55c98a408a08411a9b01fad
[INFO] running `Command { std: "docker" "start" "-a" "ff829de1cd81bc8a77fcc3332976370d3bbbaeace55c98a408a08411a9b01fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff829de1cd81bc8a77fcc3332976370d3bbbaeace55c98a408a08411a9b01fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff829de1cd81bc8a77fcc3332976370d3bbbaeace55c98a408a08411a9b01fad", kill_on_drop: false }`
[INFO] [stdout] ff829de1cd81bc8a77fcc3332976370d3bbbaeace55c98a408a08411a9b01fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c6b7d6d518c8d050c171b5483f383e3ca332de98e78b744cc502fce8df85840
[INFO] running `Command { std: "docker" "start" "-a" "3c6b7d6d518c8d050c171b5483f383e3ca332de98e78b744cc502fce8df85840", kill_on_drop: false }`
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[INFO] [stderr]    Compiling data-encoding v2.11.0
[INFO] [stderr]    Compiling subtle v2.6.1
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[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
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[INFO] [stderr]    Compiling sp-multihash v0.2.0
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[INFO] [stderr]    Compiling data-encoding-macro v0.1.20
[INFO] [stderr]    Compiling base256emoji v1.0.2
[INFO] [stderr]    Compiling multibase v0.9.2
[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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unleashed`
[INFO] [stdout]   --> src/ipld.rs:82:19
[INFO] [stdout]    |
[INFO] [stdout] 82 |             #[cfg(feature = "unleashed")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `base64`, `byteorder`, `dag-cbor`, `dag-json`, `default`, `multibase`, `parity-scale-codec`, `serde`, `sp-multihash`, and `std`
[INFO] [stdout]    = help: consider adding `unleashed` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unleashed`
[INFO] [stdout]   --> src/ipld.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |             #[cfg(feature = "unleashed")]
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `base64`, `byteorder`, `dag-cbor`, `dag-json`, `default`, `multibase`, `parity-scale-codec`, `serde`, `sp-multihash`, and `std`
[INFO] [stdout]    = help: consider adding `unleashed` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[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] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sp-ipld` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3c6b7d6d518c8d050c171b5483f383e3ca332de98e78b744cc502fce8df85840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6b7d6d518c8d050c171b5483f383e3ca332de98e78b744cc502fce8df85840", kill_on_drop: false }`
[INFO] [stdout] 3c6b7d6d518c8d050c171b5483f383e3ca332de98e78b744cc502fce8df85840
