[INFO] fetching crate flag-rs 0.7.2...
[INFO] checking flag-rs-0.7.2 against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] extracting crate flag-rs 0.7.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate flag-rs 0.7.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate flag-rs 0.7.2
[INFO] tweaked toml for crates.io crate flag-rs 0.7.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flag-rs 0.7.2 on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flag-rs 0.7.2 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b265934cece5efc2793d57770ec3802ec28e28371ed46547268b4d01e336af2
[INFO] running `Command { std: "docker" "start" "-a" "7b265934cece5efc2793d57770ec3802ec28e28371ed46547268b4d01e336af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b265934cece5efc2793d57770ec3802ec28e28371ed46547268b4d01e336af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b265934cece5efc2793d57770ec3802ec28e28371ed46547268b4d01e336af2", kill_on_drop: false }`
[INFO] [stdout] 7b265934cece5efc2793d57770ec3802ec28e28371ed46547268b4d01e336af2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c7e8532390839148b5af79880468fb6e37bb0711a59d33523ff26ea4c2fa2b3
[INFO] running `Command { std: "docker" "start" "-a" "1c7e8532390839148b5af79880468fb6e37bb0711a59d33523ff26ea4c2fa2b3", kill_on_drop: false }`
[INFO] [stderr]     Checking flag-rs v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the type `dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |           let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |  _________________------------------------_^
[INFO] [stdout]     | |                 |
[INFO] [stdout]     | |                 required by a bound introduced by this call
[INFO] [stdout] 342 | |             simple.print_help();
[INFO] [stdout] 343 | |         });
[INFO] [stdout]     | |_________^ `dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `flag_rs::Command`, the trait `RefUnwindSafe` is not implemented for `dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync`
[INFO] [stdout] note: required because it appears within the type `PhantomData<dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/marker.rs:823:12
[INFO] [stdout] note: required because it appears within the type `Unique<dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/ptr/unique.rs:37:12
[INFO] [stdout] note: required because it appears within the type `Box<dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/alloc/src/boxed.rs:231:12
[INFO] [stdout] note: required because it appears within the type `Option<Box<dyn Fn(&mut Context) -> Result<(), Error> + Send + Sync>>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/option.rs:593:10
[INFO] [stdout] note: required because it appears within the type `flag_rs::Command`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/command.rs:48:12
[INFO] [stdout]     |
[INFO] [stdout] 48  | pub struct Command {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     = note: required for `&flag_rs::Command` to implement `UnwindSafe`
[INFO] [stdout] note: required because it's used within this closure
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |                                          ^^
[INFO] [stdout] note: required by a bound in `std::panic::catch_unwind`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/std/src/panic.rs:358:1
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/benchmark-f7cb77b92d5fcb06.long-type-9290376471866639200.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `dyn Fn(&Context, &str) -> Result<CompletionResult, ...> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |           let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |  _________________------------------------_^
[INFO] [stdout]     | |                 |
[INFO] [stdout]     | |                 required by a bound introduced by this call
[INFO] [stdout] 342 | |             simple.print_help();
[INFO] [stdout] 343 | |         });
[INFO] [stdout]     | |_________^ `dyn Fn(&Context, &str) -> Result<CompletionResult, ...> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `flag_rs::Command`, the trait `RefUnwindSafe` is not implemented for `dyn Fn(&Context, &str) -> Result<CompletionResult, ...> + Send + Sync`
[INFO] [stdout] note: required because it appears within the type `PhantomData<dyn Fn(&Context, &str) -> Result<..., ...> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/marker.rs:823:12
[INFO] [stdout] note: required because it appears within the type `Unique<dyn Fn(&Context, &str) -> Result<..., ...> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/ptr/unique.rs:37:12
[INFO] [stdout] note: required because it appears within the type `Box<dyn Fn(&Context, &str) -> Result<..., ...> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/alloc/src/boxed.rs:231:12
[INFO] [stdout] note: required because it appears within the type `Option<Box<dyn Fn(&Context, &str) -> Result<..., ...> + Send + Sync>>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/option.rs:593:10
[INFO] [stdout] note: required because it appears within the type `flag_rs::Command`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/command.rs:48:12
[INFO] [stdout]     |
[INFO] [stdout] 48  | pub struct Command {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     = note: required for `&flag_rs::Command` to implement `UnwindSafe`
[INFO] [stdout] note: required because it's used within this closure
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |                                          ^^
[INFO] [stdout] note: required by a bound in `std::panic::catch_unwind`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/std/src/panic.rs:358:1
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/benchmark-f7cb77b92d5fcb06.long-type-11322462252061158751.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the type `dyn Fn(&[String]) -> Result<(), Error> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |           let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |  _________________------------------------_^
[INFO] [stdout]     | |                 |
[INFO] [stdout]     | |                 required by a bound introduced by this call
[INFO] [stdout] 342 | |             simple.print_help();
[INFO] [stdout] 343 | |         });
[INFO] [stdout]     | |_________^ `dyn Fn(&[String]) -> Result<(), Error> + Send + Sync` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
[INFO] [stdout]     |
[INFO] [stdout]     = help: within `flag_rs::Command`, the trait `RefUnwindSafe` is not implemented for `dyn Fn(&[String]) -> Result<(), Error> + Send + Sync`
[INFO] [stdout] note: required because it appears within the type `ArcInner<dyn Fn(&[String]) -> Result<(), Error> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/alloc/src/sync.rs:370:8
[INFO] [stdout] note: required because it appears within the type `PhantomData<ArcInner<dyn Fn(&[String]) -> ... + Send + Sync>>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/marker.rs:823:12
[INFO] [stdout] note: required because it appears within the type `Arc<dyn Fn(&[String]) -> Result<(), Error> + Send + Sync>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/alloc/src/sync.rs:261:12
[INFO] [stdout] note: required because it appears within the type `ArgValidator`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/validator.rs:14:10
[INFO] [stdout]     |
[INFO] [stdout] 14  | pub enum ArgValidator {
[INFO] [stdout]     |          ^^^^^^^^^^^^
[INFO] [stdout] note: required because it appears within the type `Option<ArgValidator>`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/core/src/option.rs:593:10
[INFO] [stdout] note: required because it appears within the type `flag_rs::Command`
[INFO] [stdout]    --> /opt/rustwide/workdir/src/command.rs:48:12
[INFO] [stdout]     |
[INFO] [stdout] 48  | pub struct Command {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout]     = note: required for `&flag_rs::Command` to implement `UnwindSafe`
[INFO] [stdout] note: required because it's used within this closure
[INFO] [stdout]    --> benches/benchmark.rs:341:42
[INFO] [stdout]     |
[INFO] [stdout] 341 |         let _ = std::panic::catch_unwind(|| {
[INFO] [stdout]     |                                          ^^
[INFO] [stdout] note: required by a bound in `std::panic::catch_unwind`
[INFO] [stdout]    --> /rustc/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/library/std/src/panic.rs:358:1
[INFO] [stdout]     = note: the full name for the type has been written to '/opt/rustwide/target/debug/deps/benchmark-f7cb77b92d5fcb06.long-type-3692754907505721862.txt'
[INFO] [stdout]     = note: consider using `--verbose` to print the full type name to the console
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flag-rs` (bench "benchmark") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1c7e8532390839148b5af79880468fb6e37bb0711a59d33523ff26ea4c2fa2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7e8532390839148b5af79880468fb6e37bb0711a59d33523ff26ea4c2fa2b3", kill_on_drop: false }`
[INFO] [stdout] 1c7e8532390839148b5af79880468fb6e37bb0711a59d33523ff26ea4c2fa2b3
