[INFO] cloning repository https://github.com/mingyuan-f/rust_lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingyuan-f/rust_lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyuan-f%2Frust_lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyuan-f%2Frust_lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be31e14a921cfc1a1bcb932e4208997010ed6909
[INFO] fixing mingyuan-f/rust_lab against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyuan-f%2Frust_lab" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mingyuan-f/rust_lab
[INFO] finished tweaking git repo https://github.com/mingyuan-f/rust_lab
[INFO] tweaked toml for git repo https://github.com/mingyuan-f/rust_lab written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mingyuan-f/rust_lab on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mingyuan-f/rust_lab 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutation v0.4.1
[INFO] [stderr]   Downloaded soa_derive v0.13.0
[INFO] [stderr]   Downloaded soa_derive_internal v0.13.4
[INFO] [stderr]   Downloaded serde_json v1.0.137
[INFO] [stderr]   Downloaded unicode-ident v1.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9
[INFO] running `Command { std: "docker" "start" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking permutation v0.4.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling soa_derive_internal v0.13.4
[INFO] [stderr]     Checking soa_derive v0.13.0
[INFO] [stderr]     Checking rust_lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> examples/trait_use.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let a: &dyn TA = &s;
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fa` is never used
[INFO] [stdout]  --> examples/trait_use.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait TA {
[INFO] [stdout]   |       -- method in this trait
[INFO] [stdout] 2 |     fn fa(&self) {
[INFO] [stdout]   |        ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TB` is never used
[INFO] [stdout]  --> examples/trait_use.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait TB {
[INFO] [stdout]   |       ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `aa`
[INFO] [stdout]  --> examples/ownership.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let aa = a.clone();
[INFO] [stdout]   |             ^^ help: if this is intentional, prefix it with an underscore: `_aa`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> examples/ownership.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct A {
[INFO] [stdout]   |        - field in this struct
[INFO] [stdout] 3 |     a: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `A` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> examples/static_value.rs:46:21
[INFO] [stdout]    |
[INFO] [stdout] 46 |     println!("{}", <(dyn MyTrait) as Value>::get_mut());
[INFO] [stdout]    |                     ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 46 -     println!("{}", <(dyn MyTrait) as Value>::get_mut());
[INFO] [stdout] 46 +     println!("{}", <dyn MyTrait  as Value>::get_mut());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]   --> examples/iterator.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct Vector2 {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] 48 |     x: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 49 |     y: i32,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Vector2` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `change` is never used
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait MyTrait: Debug {
[INFO] [stdout]    |       ------- method in this trait
[INFO] [stdout] 13 |     fn change(&mut self, new_value: usize);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/reference_rule.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut v = vec![10, 9, 8];
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/soa_derive_manual.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn slice_mut(&mut self, range: Range<usize>) -> RigidBodySliceMut {
[INFO] [stdout]    |                  ^^^^^^^^^                          ^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn slice_mut(&mut self, range: Range<usize>) -> RigidBodySliceMut<'_> {
[INFO] [stdout]    |                                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]  --> examples/reference_rule.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let r1 = &s;
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r2`
[INFO] [stdout]  --> examples/reference_rule.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let r2 = &s; // no problem
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r3`
[INFO] [stdout]  --> examples/reference_rule.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let r3 = &mut s; // BIG PROBLEM
[INFO] [stdout]   |         ^^ help: if this is intentional, prefix it with an underscore: `_r3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> examples/reference_rule.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     for i in 0..10 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `metatype`
[INFO] [stdout]  --> examples/vtable.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use metatype::type_coerce;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MyInto` is never used
[INFO] [stdout]   --> examples/traits.rs:58:7
[INFO] [stdout]    |
[INFO] [stdout] 58 | trait MyInto<Result> {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyStruct` is never constructed
[INFO] [stdout]   --> examples/static_value.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct MyStruct;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a mutable reference to mutable static
[INFO] [stdout]  --> examples/static_value.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |         unsafe { &mut V }
[INFO] [stdout]   |                  ^^^^^^ mutable reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]   |
[INFO] [stdout] 8 |         unsafe { &raw mut V }
[INFO] [stdout]   |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a mutable reference to mutable static
[INFO] [stdout]   --> examples/static_value.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |         unsafe { &mut V }
[INFO] [stdout]    |                  ^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 15 |         unsafe { &raw mut V }
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a mutable reference to mutable static
[INFO] [stdout]   --> examples/static_value.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |         unsafe { &mut V }
[INFO] [stdout]    |                  ^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 24 |         unsafe { &raw mut V }
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: creating a mutable reference to mutable static
[INFO] [stdout]   --> examples/static_value.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe { &mut V }
[INFO] [stdout]    |                  ^^^^^^ mutable reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout] help: use `&raw mut` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 33 |         unsafe { &raw mut V }
[INFO] [stdout]    |                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_lab` (example "static_value") due to 4 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/pin.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let mut test1 = Test::new("test1");
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/pin.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut test2 = Test::new("test2");
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `change` is never used
[INFO] [stdout]   --> src/main.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | trait MyTrait: Debug {
[INFO] [stdout]    |       ------- method in this trait
[INFO] [stdout] 13 |     fn change(&mut self, new_value: usize);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:31:59
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 31 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 31 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:35:59
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 35 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 35 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:40:59
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 40 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 40 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:45:59
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 45 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 45 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:50:59
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 50 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 50 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:55:59
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 55 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 55 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:60:59
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                                                           ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::mem::type_info::Type;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `Type`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 60 -     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout] 60 +     let trait_object: metatype::TraitObject = type_coerce(Type::meta(t));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> examples/thread.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Value {
[INFO] [stdout]   |        ----- field in this struct
[INFO] [stdout] 8 |     value: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Value` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ref_value` is never read
[INFO] [stdout]   --> examples/thread.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct S<'v> {
[INFO] [stdout]    |        - field in this struct
[INFO] [stdout] 15 |     value: Value,
[INFO] [stdout] 16 |     ref_value: &'v Value,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `negative_impls` is declared but not used
[INFO] [stdout]  --> examples/thread.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(negative_impls)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> examples/trait.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     let a: Vec<Box<dyn Debug>> = vec![Box::new(D {})];
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:40:23
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:45:23
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:55:23
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `metatype` in this scope
[INFO] [stdout]   --> examples/vtable.rs:60:23
[INFO] [stdout]    |
[INFO] [stdout] 60 |     let trait_object: metatype::TraitObject = type_coerce(metatype::Type::meta(t));
[INFO] [stdout]    |                       ^^^^^^^^ use of unresolved module or unlinked crate `metatype`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `metatype`, use `cargo add metatype` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_lab` (example "vtable") due to 15 previous errors
[INFO] running `Command { std: "docker" "inspect" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9", kill_on_drop: false }`
[INFO] [stdout] ae4f3b3ff62a7bbe0277bb6479ef221f8179be7f862ac62a3d032f2ceb66bda9
