[INFO] fetching crate kiddo 0.1.2...
[INFO] building kiddo-0.1.2 against master#ff34b919075f35a1787659e9c448a34b06bab8de for issue-85264
[INFO] extracting crate kiddo 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate kiddo 0.1.2 on toolchain ff34b919075f35a1787659e9c448a34b06bab8de
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kiddo 0.1.2
[INFO] finished tweaking crates.io crate kiddo 0.1.2
[INFO] tweaked toml for crates.io crate kiddo 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36a05b4cbee3ba39986eed190b1ec8cc226a1a070542d37c91c2aaafdf10bd24
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "36a05b4cbee3ba39986eed190b1ec8cc226a1a070542d37c91c2aaafdf10bd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36a05b4cbee3ba39986eed190b1ec8cc226a1a070542d37c91c2aaafdf10bd24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a05b4cbee3ba39986eed190b1ec8cc226a1a070542d37c91c2aaafdf10bd24", kill_on_drop: false }`
[INFO] [stdout] 36a05b4cbee3ba39986eed190b1ec8cc226a1a070542d37c91c2aaafdf10bd24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ff34b919075f35a1787659e9c448a34b06bab8de" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dd0b498280654207585c5aef04c191f4f5b91b844e4835f1d9b317398060ec2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1dd0b498280654207585c5aef04c191f4f5b91b844e4835f1d9b317398060ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling kiddo v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde`
[INFO] [stdout]  --> src/custom_serde.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use serde::{
[INFO] [stdout]   |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde`
[INFO] [stdout]   --> src/custom_serde.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use serde::{
[INFO] [stdout]    |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]  --> src/custom_serde.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use serde::{
[INFO] [stdout]   |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde`
[INFO] [stdout]   --> src/custom_serde.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     use serde::ser::SerializeSeq;
[INFO] [stdout]    |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde`
[INFO] [stdout]   --> src/custom_serde.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     use serde::{
[INFO] [stdout]    |         ^^^^^ use of undeclared crate or module `serde`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]   --> src/kiddo.rs:30:11
[INFO] [stdout]    |
[INFO] [stdout] 30 |         #[serde(with = "vec_arrays")]
[INFO] [stdout]    |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]   --> src/kiddo.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |     #[serde(with = "arrays")]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `serde` in this scope
[INFO] [stdout]   --> src/kiddo.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     #[serde(with = "arrays")]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Visitor` in this scope
[INFO] [stdout]   --> src/custom_serde.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     impl<'de, T, const N: usize> Visitor<'de> for ArrayVisitor<T, N>
[INFO] [stdout]    |                                  ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `SeqAccess` in this scope
[INFO] [stdout]   --> src/custom_serde.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 A: SeqAccess<'de>,
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde`
[INFO] [stdout]   --> src/custom_serde.rs:43:51
[INFO] [stdout]    |
[INFO] [stdout] 43 |                     None => return Err(serde::de::Error::invalid_length(N, &self)),
[INFO] [stdout]    |                                                   ^^^^^ not found in `serde::de`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 2  |     use core::fmt::Error;
[INFO] [stdout]    |
[INFO] [stdout] 2  |     use std::error::Error;
[INFO] [stdout]    |
[INFO] [stdout] 2  |     use std::fmt::Error;
[INFO] [stdout]    |
[INFO] [stdout] 2  |     use std::io::Error;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Visitor` in this scope
[INFO] [stdout]   --> src/custom_serde.rs:86:34
[INFO] [stdout]    |
[INFO] [stdout] 86 |     impl<'de, T, const N: usize> Visitor<'de> for VecArrayVisitor<T, N>
[INFO] [stdout]    |                                  ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `SeqAccess` in this scope
[INFO] [stdout]   --> src/custom_serde.rs:99:20
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 A: SeqAccess<'de>,
[INFO] [stdout]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `serde`
[INFO] [stdout]    --> src/custom_serde.rs:115:55
[INFO] [stdout]     |
[INFO] [stdout] 115 |                         None => return Err(serde::de::Error::invalid_length(N, &self)),
[INFO] [stdout]     |                                                       ^^^^^ not found in `serde::de`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 62  |     use core::fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 62  |     use std::error::Error;
[INFO] [stdout]     |
[INFO] [stdout] 62  |     use std::fmt::Error;
[INFO] [stdout]     |
[INFO] [stdout] 62  |     use std::io::Error;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::custom_serde::*`
[INFO] [stdout]  --> src/kiddo.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::custom_serde::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kiddo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1dd0b498280654207585c5aef04c191f4f5b91b844e4835f1d9b317398060ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dd0b498280654207585c5aef04c191f4f5b91b844e4835f1d9b317398060ec2", kill_on_drop: false }`
[INFO] [stdout] 1dd0b498280654207585c5aef04c191f4f5b91b844e4835f1d9b317398060ec2
