[INFO] fetching crate ex3-payload-derive 0.15.0...
[INFO] testing ex3-payload-derive-0.15.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate ex3-payload-derive 0.15.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ex3-payload-derive 0.15.0
[INFO] finished tweaking crates.io crate ex3-payload-derive 0.15.0
[INFO] tweaked toml for crates.io crate ex3-payload-derive 0.15.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ex3-payload-derive 0.15.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86f309eefcc87e7679c6ac6849be82d7a5fe811027648dccbf54579c525ce11a
[INFO] running `Command { std: "docker" "start" "-a" "86f309eefcc87e7679c6ac6849be82d7a5fe811027648dccbf54579c525ce11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86f309eefcc87e7679c6ac6849be82d7a5fe811027648dccbf54579c525ce11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f309eefcc87e7679c6ac6849be82d7a5fe811027648dccbf54579c525ce11a", kill_on_drop: false }`
[INFO] [stdout] 86f309eefcc87e7679c6ac6849be82d7a5fe811027648dccbf54579c525ce11a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fddde425f591266ebfee49f2e30ce62bb8824f8ca0d76673d4cc79f2de32ff76
[INFO] running `Command { std: "docker" "start" "-a" "fddde425f591266ebfee49f2e30ce62bb8824f8ca0d76673d4cc79f2de32ff76", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ex3-payload-derive v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/ex3_payload.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.92s
[INFO] running `Command { std: "docker" "inspect" "fddde425f591266ebfee49f2e30ce62bb8824f8ca0d76673d4cc79f2de32ff76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fddde425f591266ebfee49f2e30ce62bb8824f8ca0d76673d4cc79f2de32ff76", kill_on_drop: false }`
[INFO] [stdout] fddde425f591266ebfee49f2e30ce62bb8824f8ca0d76673d4cc79f2de32ff76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a63833e922b590561d52495ca68884637f2bcb1b3f771e5318cdb624067aa9
[INFO] running `Command { std: "docker" "start" "-a" "88a63833e922b590561d52495ca68884637f2bcb1b3f771e5318cdb624067aa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling ex3-payload-derive v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/ex3_payload.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling insta v1.43.2
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]    --> src/ex3_payload.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |         insta::assert_display_snapshot!(gen);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]    --> src/ex3_payload.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         insta::assert_display_snapshot!(gen);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]    --> src/ex3_payload.rs:181:9
[INFO] [stdout]     |
[INFO] [stdout] 181 |         insta::assert_display_snapshot!(gen);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.58s
[INFO] running `Command { std: "docker" "inspect" "88a63833e922b590561d52495ca68884637f2bcb1b3f771e5318cdb624067aa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a63833e922b590561d52495ca68884637f2bcb1b3f771e5318cdb624067aa9", kill_on_drop: false }`
[INFO] [stdout] 88a63833e922b590561d52495ca68884637f2bcb1b3f771e5318cdb624067aa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 37a451f829d7316a3e0123cf3f4b2bcf002983b4f96d46e4e7664a60c66e7b65
[INFO] running `Command { std: "docker" "start" "-a" "37a451f829d7316a3e0123cf3f4b2bcf002983b4f96d46e4e7664a60c66e7b65", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stdout] 
[INFO] [stderr]    --> src/ex3_payload.rs:135:9
[INFO] [stdout] running 3 tests
[INFO] [stderr]     |
[INFO] [stderr] 135 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ex3-payload-derive` (lib) generated 1 warning (run `cargo fix --lib -p ex3-payload-derive` to apply 1 suggestion)
[INFO] [stderr] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stderr]    --> src/ex3_payload.rs:151:9
[INFO] [stderr]     |
[INFO] [stderr] 151 |         insta::assert_display_snapshot!(gen);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stderr]    --> src/ex3_payload.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |         insta::assert_display_snapshot!(gen);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stderr]    --> src/ex3_payload.rs:181:9
[INFO] [stderr]     |
[INFO] [stderr] 181 |         insta::assert_display_snapshot!(gen);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ex3-payload-derive` (lib test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ex3_payload_derive-b85dcb05a1b3dcdf)
[INFO] [stdout] test ex3_payload::tests::test_biguint ... ok
[INFO] [stderr]    Doc-tests ex3_payload_derive
[INFO] [stdout] test ex3_payload::tests::test_ex3_payload_derive ... ok
[INFO] [stdout] test ex3_payload::tests::test_comment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 2) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 2) stdout ----
[INFO] [stdout] error: cannot find derive macro `Ex3Payload` in this scope
[INFO] [stdout]   --> src/lib.rs:22:32
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Eq, PartialEq, Debug, Ex3Payload)]
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this derive macro
[INFO] [stdout]    |
[INFO] [stdout]  2 + use ex3_payload_derive::Ex3Payload;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |     #[index(0)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 |     #[index(1)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[index(2)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |     #[index(3)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:32:7
[INFO] [stdout]    |
[INFO] [stdout] 32 |     #[index(4)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 |     #[index(5)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:36:7
[INFO] [stdout]    |
[INFO] [stdout] 36 |     #[index(6)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 |     #[index(7)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]   --> src/lib.rs:40:7
[INFO] [stdout]    |
[INFO] [stdout] 40 |     #[index(8)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Ex3PayloadEnum` in this scope
[INFO] [stdout]   --> src/lib.rs:15:45
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Eq, PartialEq, Debug, Copy, Clone, Ex3PayloadEnum)]
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this derive macro
[INFO] [stdout]    |
[INFO] [stdout]  2 + use ex3_payload_derive::Ex3PayloadEnum;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]   --> src/lib.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Eq, PartialEq, Debug, Serialize, Deserialize)]
[INFO] [stdout]    |                                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]   --> src/lib.rs:12:43
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Eq, PartialEq, Debug, Serialize, Deserialize)]
[INFO] [stdout]    |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]   --> src/lib.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[serde(transparent)]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Ex3Payload` in this scope
[INFO] [stdout]  --> src/lib.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(Eq, PartialEq, Debug, Ex3Payload)]
[INFO] [stdout]   |                                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this derive macro
[INFO] [stdout]   |
[INFO] [stdout] 2 + use ex3_payload_derive::Ex3Payload;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]  --> src/lib.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     #[index(0)]
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `index` in this scope
[INFO] [stdout]  --> src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |     #[index(1)]
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BigUint` in this scope
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     price: BigUint,
[INFO] [stdout]   |            ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BigUint` in this scope
[INFO] [stdout]  --> src/lib.rs:8:13
[INFO] [stdout]   |
[INFO] [stdout] 8 |     volume: BigUint,
[INFO] [stdout]   |             ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BigUint` in this scope
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     price: BigUint,
[INFO] [stdout]   |            ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct PriceVolumePair<BigUint> {
[INFO] [stdout]   |                       +++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 20 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0412`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 2)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "37a451f829d7316a3e0123cf3f4b2bcf002983b4f96d46e4e7664a60c66e7b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a451f829d7316a3e0123cf3f4b2bcf002983b4f96d46e4e7664a60c66e7b65", kill_on_drop: false }`
[INFO] [stdout] 37a451f829d7316a3e0123cf3f4b2bcf002983b4f96d46e4e7664a60c66e7b65