[INFO] fetching crate easy-ext 1.0.1...
[INFO] checking easy-ext-1.0.1 against master#35936c4839dd272646394779d151e060d0f6b3ac for pr-122960-1
[INFO] extracting crate easy-ext 1.0.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate easy-ext 1.0.1 on toolchain 35936c4839dd272646394779d151e060d0f6b3ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easy-ext 1.0.1
[INFO] finished tweaking crates.io crate easy-ext 1.0.1
[INFO] tweaked toml for crates.io crate easy-ext 1.0.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termcolor v1.4.1
[INFO] [stderr]   Downloaded toml_edit v0.22.9
[INFO] [stderr]   Downloaded winnow v0.6.5
[INFO] [stderr]   Downloaded toml v0.8.12
[INFO] [stderr]   Downloaded trybuild v1.0.90
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7438dd91025da4d46a360ba47616471d3cdb9e8d69d023528c5870d21389120
[INFO] running `Command { std: "docker" "start" "-a" "a7438dd91025da4d46a360ba47616471d3cdb9e8d69d023528c5870d21389120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7438dd91025da4d46a360ba47616471d3cdb9e8d69d023528c5870d21389120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7438dd91025da4d46a360ba47616471d3cdb9e8d69d023528c5870d21389120", kill_on_drop: false }`
[INFO] [stdout] a7438dd91025da4d46a360ba47616471d3cdb9e8d69d023528c5870d21389120
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+35936c4839dd272646394779d151e060d0f6b3ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 755ec9ef33a61a295764bb3b6be5bd594ed36e4519051aca9c20241cfda76861
[INFO] running `Command { std: "docker" "start" "-a" "755ec9ef33a61a295764bb3b6be5bd594ed36e4519051aca9c20241cfda76861", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling syn v2.0.55
[INFO] [stderr]     Checking winnow v0.6.5
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]    Compiling trybuild v1.0.90
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling easy-ext v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking serde_spanned v0.6.5
[INFO] [stderr]     Checking toml_datetime v0.6.5
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking toml_edit v0.22.9
[INFO] [stderr]     Checking toml v0.8.12
[INFO] [stdout] warning: methods `method3` and `method4` are never used
[INFO] [stdout]    --> tests/test.rs:188:12
[INFO] [stdout]     |
[INFO] [stdout] 176 |     #[ext(Ext1)]
[INFO] [stdout]     |           ---- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 188 |         fn method3(mut self) -> Option<Self::Item2> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 191 |         fn method4(mut self) -> Option<<I as Ext1>::Item3> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ext2` is never used
[INFO] [stdout]    --> tests/test.rs:209:11
[INFO] [stdout]     |
[INFO] [stdout] 209 |     #[ext(Ext2)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ext` is never used
[INFO] [stdout]    --> tests/test.rs:227:11
[INFO] [stdout]     |
[INFO] [stdout] 227 |     #[ext(Ext)]
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]    --> tests/test.rs:233:11
[INFO] [stdout]     |
[INFO] [stdout] 233 |     trait Trait<T = ()> {}
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `abi2` and `unsafe_abi2` are never used
[INFO] [stdout]    --> tests/test.rs:328:23
[INFO] [stdout]     |
[INFO] [stdout] 323 |     #[ext(E1)]
[INFO] [stdout]     |           -- associated functions in this trait
[INFO] [stdout] ...
[INFO] [stdout] 328 |         extern "C" fn abi2() {}
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout] 329 |         unsafe extern "C" fn unsafe_abi1() {}
[INFO] [stdout] 330 |         unsafe extern "C" fn unsafe_abi2() {}
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S3` is never constructed
[INFO] [stdout]    --> tests/test.rs:455:12
[INFO] [stdout]     |
[INFO] [stdout] 455 |     struct S3<T, const CAP: char>(T);
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `E2` is never used
[INFO] [stdout]    --> tests/test.rs:457:11
[INFO] [stdout]     |
[INFO] [stdout] 457 |     #[ext(E2)]
[INFO] [stdout]     |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ext` is never used
[INFO] [stdout]    --> tests/test.rs:480:11
[INFO] [stdout]     |
[INFO] [stdout] 480 |     #[ext(Ext)]
[INFO] [stdout]     |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]    --> tests/test.rs:486:11
[INFO] [stdout]     |
[INFO] [stdout] 486 |     trait Trait<const N: usize = 3> {}
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ext2` is never used
[INFO] [stdout]    --> tests/test.rs:491:11
[INFO] [stdout]     |
[INFO] [stdout] 491 |     #[ext(Ext2)]
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `b` is never used
[INFO] [stdout]    --> tests/test.rs:519:18
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 #[ext]
[INFO] [stdout]     |                 ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 519 |         [pub, fn b]
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `c` is never used
[INFO] [stdout]    --> tests/test.rs:520:25
[INFO] [stdout]     |
[INFO] [stdout] 504 |                 #[ext]
[INFO] [stdout]     |                 ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 520 |         [pub, unsafe fn c]
[INFO] [stdout]     |                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]    --> tests/test.rs:528:15
[INFO] [stdout]     |
[INFO] [stdout] 528 |     pub trait Trait<T> {}
[INFO] [stdout]     |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foo2` is never used
[INFO] [stdout]   --> tests/test.rs:65:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |     #[ext]
[INFO] [stdout]    |     ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 65 |         pub fn foo2(&self, pat: &str) -> String {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foo4` is never used
[INFO] [stdout]   --> tests/test.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 81 |     #[ext]
[INFO] [stdout]    |     ------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 85 |         fn foo4(&self, pat: &str) -> String {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `E4` is never used
[INFO] [stdout]   --> tests/test.rs:93:15
[INFO] [stdout]    |
[INFO] [stdout] 93 |         #[ext(E4)]
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `E6` is never used
[INFO] [stdout]    --> tests/test.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 111 |         #[ext(E6)]
[INFO] [stdout]     |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.77s
[INFO] running `Command { std: "docker" "inspect" "755ec9ef33a61a295764bb3b6be5bd594ed36e4519051aca9c20241cfda76861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "755ec9ef33a61a295764bb3b6be5bd594ed36e4519051aca9c20241cfda76861", kill_on_drop: false }`
[INFO] [stdout] 755ec9ef33a61a295764bb3b6be5bd594ed36e4519051aca9c20241cfda76861