[INFO] fetching crate datatest 0.7.1...
[INFO] testing datatest-0.7.1 against 1.69.0 for beta-1.70-1
[INFO] extracting crate datatest 0.7.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate datatest 0.7.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate datatest 0.7.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate datatest 0.7.1
[INFO] tweaked toml for crates.io crate datatest 0.7.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded datatest-derive v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a20be722e85d961073c80c82da2ed74ea9d54facb1ffdbf3e2453d8b5bf3c892
[INFO] running `Command { std: "docker" "start" "-a" "a20be722e85d961073c80c82da2ed74ea9d54facb1ffdbf3e2453d8b5bf3c892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a20be722e85d961073c80c82da2ed74ea9d54facb1ffdbf3e2453d8b5bf3c892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20be722e85d961073c80c82da2ed74ea9d54facb1ffdbf3e2453d8b5bf3c892", kill_on_drop: false }`
[INFO] [stdout] a20be722e85d961073c80c82da2ed74ea9d54facb1ffdbf3e2453d8b5bf3c892
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0ccfd0670de3981868a29ce9cb7ad7de3a2a349cea1d0800ad5bba927a98c2f
[INFO] running `Command { std: "docker" "start" "-a" "b0ccfd0670de3981868a29ce9cb7ad7de3a2a349cea1d0800ad5bba927a98c2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling regex-syntax v0.7.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling datatest v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr] warning: attempting to compile datatest on stable without opting in to subvert_stable_guarantees feature; will fail
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling regex v1.8.1
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling datatest-derive v0.7.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(termination_trait_lib)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(termination_trait_lib)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(fn_traits)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `termination_trait_lib` has been stable since 1.61.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(termination_trait_lib)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/runner.rs:186:83
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 FilesTestFn::TestFn(testfn) => TestFn::DynTestFn(Box::new(move || testfn(&paths))),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^^^^ expected `Result<(), String>`, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected enum `Result<(), std::string::String>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout] help: try wrapping the expression in `Ok`
[INFO] [stdout]     |
[INFO] [stdout] 186 |                 FilesTestFn::TestFn(testfn) => TestFn::DynTestFn(Box::new(move || Ok(testfn(&paths)))),
[INFO] [stdout]     |                                                                                   +++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: expected `FilesBenchFn` to be a struct that returns `Result<(), String>`, but it returns `()`
[INFO] [stdout]    --> src/runner.rs:188:40
[INFO] [stdout]     |
[INFO] [stdout] 188 |                     TestFn::DynBenchFn(Box::new(FilesBenchFn(benchfn, paths)))
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type mismatch resolving `<FilesBenchFn as FnOnce<(&mut Bencher,)>>::Output == Result<(), String>`
[INFO] [stdout]     |
[INFO] [stdout] note: expected this to be `Result<(), std::string::String>`
[INFO] [stdout]    --> src/runner.rs:134:19
[INFO] [stdout]     |
[INFO] [stdout] 134 |     type Output = ();
[INFO] [stdout]     |                   ^^
[INFO] [stdout]     = note:   expected enum `Result<(), std::string::String>`
[INFO] [stdout]             found unit type `()`
[INFO] [stdout]     = note: required for the cast from `FilesBenchFn` to the object type `dyn for<'a> Fn(&'a mut Bencher) -> Result<(), std::string::String> + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/runner.rs:238:61
[INFO] [stdout]     |
[INFO] [stdout] 238 |             DataTestFn::TestFn(testfn) => TestFn::DynTestFn(testfn),
[INFO] [stdout]     |                                           ----------------- ^^^^^^ expected `Box<dyn FnOnce() -> ... + Send>`, found `Box<dyn FnOnce() + Send>`
[INFO] [stdout]     |                                           |
[INFO] [stdout]     |                                           arguments to this enum variant are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<(dyn FnOnce() -> Result<(), std::string::String> + Send + 'static)>`
[INFO] [stdout]                found struct `Box<(dyn FnOnce() + Send + 'static)>`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/types.rs:85:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/runner.rs:239:64
[INFO] [stdout]     |
[INFO] [stdout] 239 |             DataTestFn::BenchFn(benchfn) => TestFn::DynBenchFn(benchfn),
[INFO] [stdout]     |                                             ------------------ ^^^^^^^ expected `Box<dyn Fn(&mut ...) -> ... + Send>`, found `Box<dyn Fn(&mut Bencher) + Send>`
[INFO] [stdout]     |                                             |
[INFO] [stdout]     |                                             arguments to this enum variant are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected struct `Box<(dyn for<'a> Fn(&'a mut Bencher) -> Result<(), std::string::String> + Send + 'static)>`
[INFO] [stdout]                found struct `Box<(dyn for<'a> Fn(&'a mut Bencher) + Send + 'static)>`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/types.rs:86:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/runner.rs:449:46
[INFO] [stdout]     |
[INFO] [stdout] 449 |                 testfn: TestFn::StaticTestFn(desc.testfn),
[INFO] [stdout]     |                         -------------------- ^^^^^^^^^^^ expected `Result<(), std::string::String>`, found `()`
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         arguments to this enum variant are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected fn pointer `fn() -> Result<(), std::string::String>`
[INFO] [stdout]                found fn pointer `fn()`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/types.rs:83:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: attempting to compile datatest on stable without opting in to subvert_stable_guarantees feature; will fail
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `datatest` due to 14 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b0ccfd0670de3981868a29ce9cb7ad7de3a2a349cea1d0800ad5bba927a98c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ccfd0670de3981868a29ce9cb7ad7de3a2a349cea1d0800ad5bba927a98c2f", kill_on_drop: false }`
[INFO] [stdout] b0ccfd0670de3981868a29ce9cb7ad7de3a2a349cea1d0800ad5bba927a98c2f
