[INFO] fetching crate overloadable 0.4.1...
[INFO] checking overloadable-0.4.1 against try#f82303294ca6add47eea966608ce02688928f965 for pr-107123-1
[INFO] extracting crate overloadable 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate overloadable 0.4.1 on toolchain f82303294ca6add47eea966608ce02688928f965
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate overloadable 0.4.1
[INFO] finished tweaking crates.io crate overloadable 0.4.1
[INFO] tweaked toml for crates.io crate overloadable 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "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" "+f82303294ca6add47eea966608ce02688928f965" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7ccb33b2195a97a3ee344ee2b667b78f3a4caae8b86cdac3121e5b2c33d8fcd
[INFO] running `Command { std: "docker" "start" "-a" "e7ccb33b2195a97a3ee344ee2b667b78f3a4caae8b86cdac3121e5b2c33d8fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7ccb33b2195a97a3ee344ee2b667b78f3a4caae8b86cdac3121e5b2c33d8fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7ccb33b2195a97a3ee344ee2b667b78f3a4caae8b86cdac3121e5b2c33d8fcd", kill_on_drop: false }`
[INFO] [stdout] e7ccb33b2195a97a3ee344ee2b667b78f3a4caae8b86cdac3121e5b2c33d8fcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+f82303294ca6add47eea966608ce02688928f965" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1151518139d39de6f0d38d4c4a12bdf05f745b355b73a57f6e657a6b0a24689e
[INFO] running `Command { std: "docker" "start" "-a" "1151518139d39de6f0d38d4c4a12bdf05f745b355b73a57f6e657a6b0a24689e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking overloadable v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/default.rs:38:24
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn(&self) -> usize {1}
[INFO] [stdout]    |                        ^ ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 38 -     fn(&self) -> usize {1}
[INFO] [stdout] 38 +     fn(&self) -> usize 1
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(usize,)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(usize,)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<(usize,)>`
[INFO] [stdout]   = note: required for `func_name` to implement `FnMut<(usize,)>`
[INFO] [stdout] note: required by a bound in `Fn`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:76:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(usize,)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(usize,)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout] note: required by a bound in `FnOnce`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:243:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(usize,)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(usize,)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<(usize,)>`
[INFO] [stdout] note: required by a bound in `FnMut`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:163:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<((T, usize),)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<((T, usize),)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<((T, usize),)>`
[INFO] [stdout]   = note: required for `func_name` to implement `FnMut<((T, usize),)>`
[INFO] [stdout] note: required by a bound in `Fn`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:76:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<((T, usize),)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<((T, usize),)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout] note: required by a bound in `FnOnce`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:243:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<((T, usize),)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<((T, usize),)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<((T, usize),)>`
[INFO] [stdout] note: required by a bound in `FnMut`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:163:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(&mut &'a str, &'b str)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(&mut &'a str, &'b str)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<(&mut &'a str, &'b str)>`
[INFO] [stdout]   = note: required for `func_name` to implement `FnMut<(&mut &'a str, &'b str)>`
[INFO] [stdout] note: required by a bound in `Fn`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:76:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(&mut &'a str, &'b str)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(&mut &'a str, &'b str)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout] note: required by a bound in `FnOnce`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:243:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `func_name: Callable<(&mut &'a str, &'b str)>` is not satisfied
[INFO] [stdout]  --> tests/default.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub(crate) func_name as
[INFO] [stdout]   |                ^^^^^^^^^ the trait `Callable<(&mut &'a str, &'b str)>` is not implemented for `func_name`
[INFO] [stdout]   |
[INFO] [stdout]   = note: required for `func_name` to implement `FnOnce<(&mut &'a str, &'b str)>`
[INFO] [stdout] note: required by a bound in `FnMut`
[INFO] [stdout]  --> /rustc/f82303294ca6add47eea966608ce02688928f965/library/core/src/ops/function.rs:163:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `overloadable` (test "default") due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1151518139d39de6f0d38d4c4a12bdf05f745b355b73a57f6e657a6b0a24689e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1151518139d39de6f0d38d4c4a12bdf05f745b355b73a57f6e657a6b0a24689e", kill_on_drop: false }`
[INFO] [stdout] 1151518139d39de6f0d38d4c4a12bdf05f745b355b73a57f6e657a6b0a24689e