[INFO] cloning repository https://github.com/xenzh/loader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xenzh/loader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxenzh%2Floader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxenzh%2Floader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f78ec065bf979291c08bbdd899a5365470c9766
[INFO] testing xenzh/loader against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxenzh%2Floader" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xenzh/loader
[INFO] finished tweaking git repo https://github.com/xenzh/loader
[INFO] tweaked toml for git repo https://github.com/xenzh/loader written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xenzh/loader on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] d613783d7b908bf7bd540593a21813d1ac1189510665570c69a972ec00af3d98
[INFO] running `Command { std: "docker" "start" "-a" "d613783d7b908bf7bd540593a21813d1ac1189510665570c69a972ec00af3d98", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cc v1.0.25
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[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling time v0.1.40
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[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling serde_test v0.8.23
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[INFO] [stderr]    Compiling serde-hjson v0.8.2
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[INFO] [stderr]    Compiling toml v0.4.9
[INFO] [stderr]    Compiling config v0.9.1
[INFO] [stderr]    Compiling package v0.1.0 (/opt/rustwide/workdir/package)
[INFO] [stderr]    Compiling entity v0.1.0 (/opt/rustwide/workdir/entity)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/meta/eval.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 |     dummy: Vec<Box<Method>>,
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     dummy: Vec<Box<dyn Method>>,
[INFO] [stdout]    |                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/meta/eval.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 55 |     method: &'m Method,
[INFO] [stdout]    |                 ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 |     method: &'m dyn Method,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/lib.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Meta(Box<Meta>),
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Meta(Box<dyn Meta>),
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/lib.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Data(Box<Data>),
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Data(Box<dyn Data>),
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Library(Box<Library>),
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     Library(Box<dyn Library>),
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/meta/mod.rs:15:29
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn methods(&self) -> &[&Method];
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn methods(&self) -> &[&dyn Method];
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/meta/eval.rs:40:70
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn who_returns(&self, _tgts: &[Target]) -> impl Iterator<Item = &Method> {
[INFO] [stdout]    |                                                                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn who_returns(&self, _tgts: &[Target]) -> impl Iterator<Item = &dyn Method> {
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> entity/src/meta/eval.rs:44:68
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn who_takes(&self, _tgts: &[Target]) -> impl Iterator<Item = &Method> {
[INFO] [stdout]    |                                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn who_takes(&self, _tgts: &[Target]) -> impl Iterator<Item = &dyn Method> {
[INFO] [stdout]    |                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `get`, `from`, and `cond` are never read
[INFO] [stdout]    --> entity/src/meta/query.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub struct Query<Subject, Object> {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 143 |     get: Subject, // artist, album
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 144 |     from: Object, // recenttrack, year
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 145 |     cond: Expr<(Subject, Object)>, // artist.name == "x"
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Query` 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: field `dummy` is never read
[INFO] [stdout]   --> entity/src/meta/eval.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct Methods {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 33 |     dummy: Vec<Box<Method>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `who_returns` and `who_takes` are never used
[INFO] [stdout]   --> entity/src/meta/eval.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Methods {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn who_returns(&self, _tgts: &[Target]) -> impl Iterator<Item = &Method> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 44 |     fn who_takes(&self, _tgts: &[Target]) -> impl Iterator<Item = &Method> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `method`, `missing_input`, and `extra_input` are never read
[INFO] [stdout]   --> entity/src/meta/eval.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub struct MethodMatch<'m> {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 55 |     method: &'m Method,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 56 |     missing_input: Vec<Target>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 57 |     extra_input: Vec<Target>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `obj` and `subj` are never read
[INFO] [stdout]   --> entity/src/meta/method.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct Target {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 25 |     obj: Object,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 26 |     subj: Subject,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fields` is never read
[INFO] [stdout]   --> entity/src/meta/method.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct FieldList {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 46 |     fields: Vec<Fld<Subject>>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FieldList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> entity/src/meta/eval.rs:66:18
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn transform(&self, methods: &Methods, from: &[Target], to: Target) -> &[MethodMatch];
[INFO] [stdout]    |                  ^^^^^                                                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |                  |                                                         | |
[INFO] [stdout]    |                  |                                                         | the same lifetime is hidden here
[INFO] [stdout]    |                  the lifetime is elided here                               the same 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] 66 |     fn transform(&self, methods: &Methods, from: &[Target], to: Target) -> &[MethodMatch<'_>];
[INFO] [stdout]    |                                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling test-meta-package v0.1.0 (/opt/rustwide/workdir/test-meta-package)
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `methods`
[INFO] [stdout]   --> test-meta-package/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Meta for MetaImpl {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^ missing `methods` in implementation
[INFO] [stdout]    |
[INFO] [stdout]    = help: implement the missing item: `fn methods(&self) -> &[&dyn entity::meta::method::Method] { todo!() }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-meta-package` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d613783d7b908bf7bd540593a21813d1ac1189510665570c69a972ec00af3d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d613783d7b908bf7bd540593a21813d1ac1189510665570c69a972ec00af3d98", kill_on_drop: false }`
[INFO] [stdout] d613783d7b908bf7bd540593a21813d1ac1189510665570c69a972ec00af3d98
