[INFO] fetching crate ipld-core 0.4.1...
[INFO] testing ipld-core-0.4.1 against 1.83.0 for beta-1.84.0-4-retry
[INFO] extracting crate ipld-core 0.4.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ipld-core 0.4.1 on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipld-core 0.4.1
[INFO] finished tweaking crates.io crate ipld-core 0.4.1
[INFO] tweaked toml for crates.io crate ipld-core 0.4.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_ipld_dagjson v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df700e68bc59fb7b9233a9f7276800e2dac306fcb546df18cc4f985c9b5d8c90
[INFO] running `Command { std: "docker" "start" "-a" "df700e68bc59fb7b9233a9f7276800e2dac306fcb546df18cc4f985c9b5d8c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df700e68bc59fb7b9233a9f7276800e2dac306fcb546df18cc4f985c9b5d8c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df700e68bc59fb7b9233a9f7276800e2dac306fcb546df18cc4f985c9b5d8c90", kill_on_drop: false }`
[INFO] [stdout] df700e68bc59fb7b9233a9f7276800e2dac306fcb546df18cc4f985c9b5d8c90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 445a333179670c309a73e562ce89cdb571c1f0aaa4b04b58f888cfdb2999f321
[INFO] running `Command { std: "docker" "start" "-a" "445a333179670c309a73e562ce89cdb571c1f0aaa4b04b58f888cfdb2999f321", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling data-encoding v2.6.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling unsigned-varint v0.8.0
[INFO] [stderr]    Compiling base-x v0.2.11
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling multihash v0.19.3
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling data-encoding-macro-internal v0.1.13
[INFO] [stderr]    Compiling data-encoding-macro v0.1.15
[INFO] [stderr]    Compiling multibase v0.9.1
[INFO] [stderr]    Compiling cid v0.11.1
[INFO] [stderr]    Compiling ipld-core v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "445a333179670c309a73e562ce89cdb571c1f0aaa4b04b58f888cfdb2999f321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445a333179670c309a73e562ce89cdb571c1f0aaa4b04b58f888cfdb2999f321", kill_on_drop: false }`
[INFO] [stdout] 445a333179670c309a73e562ce89cdb571c1f0aaa4b04b58f888cfdb2999f321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0824a4089c74e73875b6558c92aa2fdf755de2d7ce25272fed64b882370bd613
[INFO] running `Command { std: "docker" "start" "-a" "0824a4089c74e73875b6558c92aa2fdf755de2d7ce25272fed64b882370bd613", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling core2 v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling serde_bytes v0.11.15
[INFO] [stderr]    Compiling multihash v0.19.3
[INFO] [stderr]    Compiling cbor4ii v0.2.14
[INFO] [stderr]    Compiling serde_test v1.0.177
[INFO] [stderr]    Compiling cid v0.11.1
[INFO] [stderr]    Compiling ipld-core v0.4.1
[INFO] [stderr]    Compiling ipld-core v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_ipld_dagcbor v0.6.1
[INFO] [stderr]    Compiling serde_ipld_dagjson v0.2.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.05s
[INFO] running `Command { std: "docker" "inspect" "0824a4089c74e73875b6558c92aa2fdf755de2d7ce25272fed64b882370bd613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0824a4089c74e73875b6558c92aa2fdf755de2d7ce25272fed64b882370bd613", kill_on_drop: false }`
[INFO] [stdout] 0824a4089c74e73875b6558c92aa2fdf755de2d7ce25272fed64b882370bd613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bba0e86ba6dd6c881dd8759b42566e482ae9ba3c7dcff5382856335eff89df9
[INFO] running `Command { std: "docker" "start" "-a" "6bba0e86ba6dd6c881dd8759b42566e482ae9ba3c7dcff5382856335eff89df9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ipld_core-a71034b38510bb05)
[INFO] [stdout] running 19 tests
[INFO] [stdout] test convert::tests::try_into_floats ... ok
[INFO] [stdout] test convert::tests::try_into_map ... ok
[INFO] [stdout] test convert::tests::try_into_list ... ok
[INFO] [stdout] test convert::tests::try_into_ints ... ok
[INFO] [stdout] test convert::tests::try_into_cid ... ok
[INFO] [stdout] test convert::tests::try_into_vec ... ok
[INFO] [stdout] test convert::tests::try_into_string ... ok
[INFO] [stdout] test convert::tests::try_into_bool ... ok
[INFO] [stdout] test ipld::tests::test_ipld_bool_from ... ok
[INFO] [stdout] test ipld::tests::test_ipld_bytes_from ... ok
[INFO] [stdout] test ipld::tests::test_get ... ok
[INFO] [stdout] test ipld::tests::test_ipld_float_from ... ok
[INFO] [stdout] test ipld::tests::test_ipld_integer_from ... ok
[INFO] [stdout] test ipld::tests::test_ipld_link_from ... ok
[INFO] [stdout] test ipld::tests::test_partial_eq_nan ... ok
[INFO] [stdout] test ipld::tests::test_ipld_string_from ... ok
[INFO] [stdout] test ipld::tests::test_take ... ok
[INFO] [stdout] test convert::tests::try_into_wrong_range - should panic ... ok
[INFO] [stdout] test convert::tests::try_into_wrong_type - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/macros.rs (/opt/rustwide/target/debug/deps/macros-60431c2be5e625f0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_macro ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_deserialize.rs (/opt/rustwide/target/debug/deps/serde_deserialize-4c3cfa2b7173b827)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_deserializer.rs (/opt/rustwide/target/debug/deps/serde_deserializer-3f53b1b75afee19c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_serialize.rs (/opt/rustwide/target/debug/deps/serde_serialize-a92f1a488ec256f5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/serde_serializer.rs (/opt/rustwide/target/debug/deps/serde_serializer-13babc592222e6f2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ipld_core
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/../README.md - (line 21) ... FAILED
[INFO] [stdout] test src/../README.md - (line 67) ... FAILED
[INFO] [stdout] test src/macros.rs - macros::ipld (line 45) ... ok
[INFO] [stdout] test src/macros.rs - macros::ipld (line 27) ... ok
[INFO] [stdout] test src/macros.rs - macros::ipld (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/../README.md - (line 21) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> src/../README.md:26:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |     ^^^^^ help: a similar path exists: `cid::serde`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `DagCborCodec: Codec<_>` is not satisfied
[INFO] [stdout]   --> src/../README.md:49:41
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let cbor_encoded = encode_generic::<DagCborCodec, _>(&tree);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ the trait `Codec<_>` is not implemented for `DagCborCodec`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `encode_generic`
[INFO] [stdout]   --> src/../README.md:38:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn encode_generic<C, T>(value: &T) -> Result<Vec<u8>, C::Error>
[INFO] [stdout]    |    -------------- required by a bound in this function
[INFO] [stdout] 18 | where
[INFO] [stdout] 19 |     C: Codec<T>,
[INFO] [stdout]    |        ^^^^^^^^ required by this bound in `encode_generic`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `DagCborCodec: Codec<_>` is not satisfied
[INFO] [stdout]   --> src/../README.md:49:24
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let cbor_encoded = encode_generic::<DagCborCodec, _>(&tree);
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Codec<_>` is not implemented for `DagCborCodec`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `DagJsonCodec: Codec<_>` is not satisfied
[INFO] [stdout]   --> src/../README.md:58:41
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let json_encoded = encode_generic::<DagJsonCodec, _>(&tree).unwrap();
[INFO] [stdout]    |                                         ^^^^^^^^^^^^ the trait `Codec<_>` is not implemented for `DagJsonCodec`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `encode_generic`
[INFO] [stdout]   --> src/../README.md:38:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn encode_generic<C, T>(value: &T) -> Result<Vec<u8>, C::Error>
[INFO] [stdout]    |    -------------- required by a bound in this function
[INFO] [stdout] 18 | where
[INFO] [stdout] 19 |     C: Codec<T>,
[INFO] [stdout]    |        ^^^^^^^^ required by this bound in `encode_generic`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `DagJsonCodec: Codec<_>` is not satisfied
[INFO] [stdout]   --> src/../README.md:58:24
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let json_encoded = encode_generic::<DagJsonCodec, _>(&tree).unwrap();
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Codec<_>` is not implemented for `DagJsonCodec`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/../README.md - (line 67) stdout ----
[INFO] [stdout] error[E0599]: no function or associated item named `encode` found for struct `DagJsonCodec` in the current scope
[INFO] [stdout]   --> src/../README.md:77:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     DagJsonCodec::encode(&mut encoded, &data).unwrap();
[INFO] [stdout]    |                   ^^^^^^ function or associated item not found in `DagJsonCodec`
[INFO] [stdout]    |
[INFO] [stdout] note: there are multiple different versions of crate `ipld_core` in the dependency graph
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ipld-core-0.4.1/src/codec.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Codec<T>: Links {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ this is the trait that is needed
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn encode<W: Write>(writer: W, data: &T) -> Result<(), Self::Error>;
[INFO] [stdout]    |     -------------------------------------------------------------------- the associated function is available for `DagJsonCodec` here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/../README.md:69:25
[INFO] [stdout]    |
[INFO] [stdout] 4  | use ipld_core::{codec::{Codec, Links}, ipld, cid::Cid};
[INFO] [stdout]    |                         ----- `Codec` imported here doesn't correspond to the right version of crate `ipld_core`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/codec.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Codec<T>: Links {
[INFO] [stdout]    | ------------------------- this is the trait that was imported
[INFO] [stdout] help: there is an associated function `decode` with a similar name
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ipld-core-0.4.1/src/codec.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn decode<R: BufRead>(reader: R) -> Result<T, Self::Error>;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `links` found for struct `DagJsonCodec` in the current scope
[INFO] [stdout]   --> src/../README.md:79:31
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let links = DagJsonCodec::links(&encoded).unwrap().collect::<Vec<_>>();
[INFO] [stdout]    |                               ^^^^^ function or associated item not found in `DagJsonCodec`
[INFO] [stdout]    |
[INFO] [stdout] note: there are multiple different versions of crate `ipld_core` in the dependency graph
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ipld-core-0.4.1/src/codec.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait Links {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^ this is the trait that is needed
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn links(bytes: &[u8]) -> Result<impl Iterator<Item = Cid>, Self::LinksError>;
[INFO] [stdout]    |     ------------------------------------------------------------------------------ the associated function is available for `DagJsonCodec` here
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/../README.md:69:32
[INFO] [stdout]    |
[INFO] [stdout] 4  | use ipld_core::{codec::{Codec, Links}, ipld, cid::Cid};
[INFO] [stdout]    |                                ----- `Links` imported here doesn't correspond to the right version of crate `ipld_core`
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/codec.rs:37:1
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub trait Links {
[INFO] [stdout]    | --------------- this is the trait that was imported
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/../README.md - (line 21)
[INFO] [stdout]     src/../README.md - (line 67)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6bba0e86ba6dd6c881dd8759b42566e482ae9ba3c7dcff5382856335eff89df9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bba0e86ba6dd6c881dd8759b42566e482ae9ba3c7dcff5382856335eff89df9", kill_on_drop: false }`
[INFO] [stdout] 6bba0e86ba6dd6c881dd8759b42566e482ae9ba3c7dcff5382856335eff89df9
