[INFO] cloning repository https://github.com/jonstites/minotaur
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonstites/minotaur" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Fminotaur", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Fminotaur'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8ec3b4eeead187f5b0ca8dd359659038a47efe1
[INFO] testing jonstites/minotaur against 1.83.0 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonstites%2Fminotaur" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonstites/minotaur 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 git repo https://github.com/jonstites/minotaur
[INFO] finished tweaking git repo https://github.com/jonstites/minotaur
[INFO] tweaked toml for git repo https://github.com/jonstites/minotaur written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonstites/minotaur 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" "+1.83.0" "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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a19f082fce920b0bc70acdac9e9847f14fd58465feaf800c05eeb7dbf144a83
[INFO] running `Command { std: "docker" "start" "-a" "7a19f082fce920b0bc70acdac9e9847f14fd58465feaf800c05eeb7dbf144a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a19f082fce920b0bc70acdac9e9847f14fd58465feaf800c05eeb7dbf144a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a19f082fce920b0bc70acdac9e9847f14fd58465feaf800c05eeb7dbf144a83", kill_on_drop: false }`
[INFO] [stdout] 7a19f082fce920b0bc70acdac9e9847f14fd58465feaf800c05eeb7dbf144a83
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c725bb31760cd2e07ef5ed0a8d12594b22d898284f0a6b1887f93c222a2d4f
[INFO] running `Command { std: "docker" "start" "-a" "66c725bb31760cd2e07ef5ed0a8d12594b22d898284f0a6b1887f93c222a2d4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling bincode v1.1.4
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[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_pcg v0.2.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.2
[INFO] [stderr]    Compiling minotaur v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                       ^--------
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       `Serialize` is not local
[INFO] [stdout]    |                       move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:34
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                                  ^----------
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  `Deserialize` is not local
[INFO] [stdout]    |                                  move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.23s
[INFO] running `Command { std: "docker" "inspect" "66c725bb31760cd2e07ef5ed0a8d12594b22d898284f0a6b1887f93c222a2d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c725bb31760cd2e07ef5ed0a8d12594b22d898284f0a6b1887f93c222a2d4f", kill_on_drop: false }`
[INFO] [stdout] 66c725bb31760cd2e07ef5ed0a8d12594b22d898284f0a6b1887f93c222a2d4f
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dffa9575e706d9c29a5a7c283a31a98c2eadedabf30f003ad15f678d37d24c6
[INFO] running `Command { std: "docker" "start" "-a" "6dffa9575e706d9c29a5a7c283a31a98c2eadedabf30f003ad15f678d37d24c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling minotaur v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                       ^--------
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       `Serialize` is not local
[INFO] [stdout]    |                       move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:34
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                                  ^----------
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  `Deserialize` is not local
[INFO] [stdout]    |                                  move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:23
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                       ^--------
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       `Serialize` is not local
[INFO] [stdout]    |                       move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:28:34
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stdout]    |                                  ^----------
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  `Deserialize` is not local
[INFO] [stdout]    |                                  move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Cell`
[INFO] [stdout] 29 |     pub struct Cell: u8 {
[INFO] [stdout]    |                ---- `Cell` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |          ^--------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Serialize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stdout]    |                     ^----------
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     `Deserialize` is not local
[INFO] [stdout]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Grid`
[INFO] [stdout] 41 | pub struct Grid {
[INFO] [stdout]    |            ---- `Grid` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "6dffa9575e706d9c29a5a7c283a31a98c2eadedabf30f003ad15f678d37d24c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dffa9575e706d9c29a5a7c283a31a98c2eadedabf30f003ad15f678d37d24c6", kill_on_drop: false }`
[INFO] [stdout] 6dffa9575e706d9c29a5a7c283a31a98c2eadedabf30f003ad15f678d37d24c6
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e8d0dd6916a030466cc28b45191aeb43a7f5c60412d0764b2814037fb75202d2
[INFO] running `Command { std: "docker" "start" "-a" "e8d0dd6916a030466cc28b45191aeb43a7f5c60412d0764b2814037fb75202d2", kill_on_drop: false }`
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:28:23
[INFO] [stderr]    |
[INFO] [stderr] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stderr]    |                       ^--------
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       `Serialize` is not local
[INFO] [stderr]    |                       move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Cell`
[INFO] [stderr] 29 |     pub struct Cell: u8 {
[INFO] [stderr]    |                ---- `Cell` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stderr]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:28:34
[INFO] [stderr]    |
[INFO] [stderr] 28 |     #[derive(Default, Serialize, Deserialize)]
[INFO] [stderr]    |                                  ^----------
[INFO] [stderr]    |                                  |
[INFO] [stderr]    |                                  `Deserialize` is not local
[INFO] [stderr]    |                                  move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Cell`
[INFO] [stderr] 29 |     pub struct Cell: u8 {
[INFO] [stderr]    |                ---- `Cell` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:40:10
[INFO] [stderr]    |
[INFO] [stderr] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stderr]    |          ^--------
[INFO] [stderr]    |          |
[INFO] [stderr]    |          `Serialize` is not local
[INFO] [stderr]    |          move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Grid`
[INFO] [stderr] 41 | pub struct Grid {
[INFO] [stderr]    |            ---- `Grid` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stderr]   --> src/lib.rs:40:21
[INFO] [stderr]    |
[INFO] [stderr] 40 | #[derive(Serialize, Deserialize, PartialEq, Debug)]
[INFO] [stderr]    |                     ^----------
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     `Deserialize` is not local
[INFO] [stderr]    |                     move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Grid`
[INFO] [stderr] 41 | pub struct Grid {
[INFO] [stderr]    |            ---- `Grid` is not local
[INFO] [stderr]    |
[INFO] [stderr]    = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed
[INFO] [stderr]    = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive`
[INFO] [stderr]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stderr]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stderr]    = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `minotaur` (lib) generated 4 warnings
[INFO] [stderr] warning: `minotaur` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minotaur-87a4b39a295dc956)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_hunt_and_kill ... ok
[INFO] [stdout] test tests::test_recursive_backtracker ... ok
[INFO] [stdout] test tests::test_aldous_broder_all_mazes ... ok
[INFO] [stdout] test tests::test_binary_tree ... ok
[INFO] [stdout] test tests::test_sidewinder ... ok
[INFO] [stdout] test tests::test_wilsons_all_mazes ... ok
[INFO] [stdout] test tests::test_aldous_broder ... ok
[INFO] [stdout] test tests::test_wilsons ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 40.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minotaur-a846b9cccb3c3d8d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests minotaur
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "e8d0dd6916a030466cc28b45191aeb43a7f5c60412d0764b2814037fb75202d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8d0dd6916a030466cc28b45191aeb43a7f5c60412d0764b2814037fb75202d2", kill_on_drop: false }`
[INFO] [stdout] e8d0dd6916a030466cc28b45191aeb43a7f5c60412d0764b2814037fb75202d2
