[INFO] fetching crate serde-ndim 2.1.0...
[INFO] testing serde-ndim-2.1.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate serde-ndim 2.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate serde-ndim 2.1.0
[INFO] finished tweaking crates.io crate serde-ndim 2.1.0
[INFO] tweaked toml for crates.io crate serde-ndim 2.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-ndim 2.1.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-ndim 2.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.208
[INFO] [stderr]   Downloaded portable-atomic-util v0.2.2
[INFO] [stderr]   Downloaded similar v2.6.0
[INFO] [stderr]   Downloaded serde v1.0.208
[INFO] [stderr]   Downloaded insta v1.39.0
[INFO] [stderr]   Downloaded serde_json v1.0.125
[INFO] [stderr]   Downloaded syn v2.0.75
[INFO] [stderr]   Downloaded format_serde_error v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 415a8441575d5ac2a51b7806acd86c1d82ea22698d7dd1f547dfb7892ac1e679
[INFO] running `Command { std: "docker" "start" "-a" "415a8441575d5ac2a51b7806acd86c1d82ea22698d7dd1f547dfb7892ac1e679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "415a8441575d5ac2a51b7806acd86c1d82ea22698d7dd1f547dfb7892ac1e679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415a8441575d5ac2a51b7806acd86c1d82ea22698d7dd1f547dfb7892ac1e679", kill_on_drop: false }`
[INFO] [stdout] 415a8441575d5ac2a51b7806acd86c1d82ea22698d7dd1f547dfb7892ac1e679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1e4368168dd66c04f4251b9d14555ee1247ae98f4874fe08ec874dafecf3709
[INFO] running `Command { std: "docker" "start" "-a" "e1e4368168dd66c04f4251b9d14555ee1247ae98f4874fe08ec874dafecf3709", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.208
[INFO] [stderr]    Compiling serde-ndim v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "e1e4368168dd66c04f4251b9d14555ee1247ae98f4874fe08ec874dafecf3709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e4368168dd66c04f4251b9d14555ee1247ae98f4874fe08ec874dafecf3709", kill_on_drop: false }`
[INFO] [stdout] e1e4368168dd66c04f4251b9d14555ee1247ae98f4874fe08ec874dafecf3709
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 302b67a19f1318b12096335dc86a387acc012d89f65996e7e069aef5d3310332
[INFO] running `Command { std: "docker" "start" "-a" "302b67a19f1318b12096335dc86a387acc012d89f65996e7e069aef5d3310332", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.208
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling serde_json v1.0.125
[INFO] [stderr]    Compiling similar v2.6.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling insta v1.39.0
[INFO] [stderr]    Compiling serde_derive v1.0.208
[INFO] [stderr]    Compiling serde-ndim v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling format_serde_error v0.3.0
[INFO] [stdout] warning: struct `TestWrapper` is never constructed
[INFO] [stdout]   --> src/lib.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub(crate) struct TestWrapper<A>(#[serde(with = "crate")] pub(crate) A);
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_roundtrip` is never used
[INFO] [stdout]   --> src/lib.rs:36:19
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub(crate) fn test_roundtrip<A: crate::de::MakeNDim>(
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 42.53s
[INFO] running `Command { std: "docker" "inspect" "302b67a19f1318b12096335dc86a387acc012d89f65996e7e069aef5d3310332", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "302b67a19f1318b12096335dc86a387acc012d89f65996e7e069aef5d3310332", kill_on_drop: false }`
[INFO] [stdout] 302b67a19f1318b12096335dc86a387acc012d89f65996e7e069aef5d3310332
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 015ad2ea906ed268168d11b076ee27a5d46a316abfcea89c8b8b9d4fdad52daa
[INFO] running `Command { std: "docker" "start" "-a" "015ad2ea906ed268168d11b076ee27a5d46a316abfcea89c8b8b9d4fdad52daa", kill_on_drop: false }`
[INFO] [stderr] warning: struct `TestWrapper` is never constructed
[INFO] [stderr]   --> src/lib.rs:34:23
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub(crate) struct TestWrapper<A>(#[serde(with = "crate")] pub(crate) A);
[INFO] [stderr]    |                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test_roundtrip` is never used
[INFO] [stderr]   --> src/lib.rs:36:19
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub(crate) fn test_roundtrip<A: crate::de::MakeNDim>(
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `serde-ndim` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serde_ndim-a96495c1287bf7e6)
[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 serde_ndim
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 50) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 50) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `&_: NDim` is not satisfied
[INFO] [stdout]   --> src/lib.rs:54:23
[INFO] [stdout]    |
[INFO] [stdout] 7  | #[derive(Deserialize, Serialize)]
[INFO] [stdout]    |                       ^^^^^^^^^ the trait `NDim` is not implemented for `&_`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `serde_ndim::serialize`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/ser.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn serialize<'a, A, S: Serializer>(array: &'a A, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]    |        --------- required by a bound in this function
[INFO] [stdout] 49 | where
[INFO] [stdout] 50 |     &'a A: NDim,
[INFO] [stdout]    |            ^^^^ required by this bound in `serialize`
[INFO] [stdout]    = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ndarray`
[INFO] [stdout]   --> src/lib.rs:57:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     ndarray: ndarray::ArrayD<f32>,
[INFO] [stdout]    |              ^^^^^^^ use of unresolved module or unlinked crate `ndarray`
[INFO] [stdout]    |
[INFO] [stdout] help: to make use of source file src/ndarray.rs, use `mod ndarray` in this file to declare the module
[INFO] [stdout]    |
[INFO] [stdout] 2  + mod ndarray;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 50)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "015ad2ea906ed268168d11b076ee27a5d46a316abfcea89c8b8b9d4fdad52daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015ad2ea906ed268168d11b076ee27a5d46a316abfcea89c8b8b9d4fdad52daa", kill_on_drop: false }`
[INFO] [stdout] 015ad2ea906ed268168d11b076ee27a5d46a316abfcea89c8b8b9d4fdad52daa
