[INFO] crate human_name 1.0.0 is already in cache
[INFO] checking human_name-1.0.0 against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1
[INFO] extracting crate human_name 1.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate human_name 1.0.0 on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate human_name 1.0.0
[INFO] finished tweaking crates.io crate human_name 1.0.0
[INFO] tweaked toml for crates.io crate human_name 1.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate human_name 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1ce25a6e0f4629b17aa0dcf1c23887787a0c352ddf3d8f462d46ca23a824fc30
[INFO] running `"docker" "start" "-a" "1ce25a6e0f4629b17aa0dcf1c23887787a0c352ddf3d8f462d46ca23a824fc30"`
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]     Checking unidecode v0.3.0
[INFO] [stderr]     Checking smallstr v0.1.0
[INFO] [stderr]    Compiling alloc_counter_macro v0.0.1
[INFO] [stderr]     Checking alloc_counter v0.0.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking human_name v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]   --> src/nickname.rs:76:68
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 return Cow::Owned(input[0..strip_from].to_string() + &strip_nickname(&input[j..]));
[INFO] [stderr]    |                                                                    ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]   --> src/nickname.rs:78:59
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 return Cow::Owned(input[0..i].to_string() + &strip_nickname(&input[i..]));
[INFO] [stderr]    |                                                           ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]    --> src/nickname.rs:101:59
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 return Cow::Owned(input[0..j].to_string() + &strip_nickname(&input[j..]));
[INFO] [stderr]     |                                                           ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `human_name`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]   --> src/nickname.rs:76:68
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 return Cow::Owned(input[0..strip_from].to_string() + &strip_nickname(&input[j..]));
[INFO] [stderr]    |                                                                    ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]   --> src/nickname.rs:78:59
[INFO] [stderr]    |
[INFO] [stderr] 78 |                 return Cow::Owned(input[0..i].to_string() + &strip_nickname(&input[i..]));
[INFO] [stderr]    |                                                           ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: cannot add `&std::borrow::Cow<'_, str>` to `std::string::String`
[INFO] [stderr]    --> src/nickname.rs:101:59
[INFO] [stderr]     |
[INFO] [stderr] 101 |                 return Cow::Owned(input[0..j].to_string() + &strip_nickname(&input[j..]));
[INFO] [stderr]     |                                                           ^ no implementation for `std::string::String + &std::borrow::Cow<'_, str>`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::ops::Add<&std::borrow::Cow<'_, str>>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `human_name`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1ce25a6e0f4629b17aa0dcf1c23887787a0c352ddf3d8f462d46ca23a824fc30"`
[INFO] running `"docker" "rm" "-f" "1ce25a6e0f4629b17aa0dcf1c23887787a0c352ddf3d8f462d46ca23a824fc30"`
[INFO] [stdout] 1ce25a6e0f4629b17aa0dcf1c23887787a0c352ddf3d8f462d46ca23a824fc30