[INFO] updating cached repository https://github.com/alexrudy/urlsplit
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84d696d583a198cefa2937c668530ffbbef27b5c
[INFO] checking alexrudy/urlsplit against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexrudy%2Furlsplit" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexrudy/urlsplit on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alexrudy/urlsplit
[INFO] finished tweaking git repo https://github.com/alexrudy/urlsplit
[INFO] tweaked toml for git repo https://github.com/alexrudy/urlsplit written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/alexrudy/urlsplit already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e0b23aded165bfd54a8e2414558e33f3aa4ec9e6669dea9aa16a80aa0fa8099b
[INFO] running `"docker" "start" "-a" "e0b23aded165bfd54a8e2414558e33f3aa4ec9e6669dea9aa16a80aa0fa8099b"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking openssl v0.10.24
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking bstr v0.2.7
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.4
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking tldextract v0.5.1
[INFO] [stderr]     Checking urlsplit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/main.rs:76:15
[INFO] [stderr]    |
[INFO] [stderr] 76 |     match arg.as_deref() {
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:73:42
[INFO] [stderr]    |
[INFO] [stderr] 73 |             values.push_field(tld.domain.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:74:45
[INFO] [stderr]    |
[INFO] [stderr] 74 |             values.push_field(tld.subdomain.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:75:42
[INFO] [stderr]    |
[INFO] [stderr] 75 |             values.push_field(tld.suffix.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |                     tld.domain.as_deref().unwrap_or(""),
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     tld.suffix.as_deref().unwrap_or("")
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 tld.domain.as_deref().unwrap_or("").to_string()
[INFO] [stderr]    |                            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/main.rs:76:15
[INFO] [stderr]    |
[INFO] [stderr] 76 |     match arg.as_deref() {
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:73:42
[INFO] [stderr]    |
[INFO] [stderr] 73 |             values.push_field(tld.domain.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:74:45
[INFO] [stderr]    |
[INFO] [stderr] 74 |             values.push_field(tld.subdomain.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:75:42
[INFO] [stderr]    |
[INFO] [stderr] 75 |             values.push_field(tld.suffix.as_deref().unwrap_or(""));
[INFO] [stderr]    |                                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:80:32
[INFO] [stderr]    |
[INFO] [stderr] 80 |                     tld.domain.as_deref().unwrap_or(""),
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:81:32
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     tld.suffix.as_deref().unwrap_or("")
[INFO] [stderr]    |                                ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]   --> src/split.rs:84:28
[INFO] [stderr]    |
[INFO] [stderr] 84 |                 tld.domain.as_deref().unwrap_or("").to_string()
[INFO] [stderr]    |                            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]    = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]    = help: call with fully qualified syntax `split::OptionDeref::as_deref(...)` to keep using the current method
[INFO] [stderr]    = help: add `#![feature(inner_deref)]` to the crate attributes to enable `std::option::Option::<T>::as_deref`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `"docker" "inspect" "e0b23aded165bfd54a8e2414558e33f3aa4ec9e6669dea9aa16a80aa0fa8099b"`
[INFO] running `"docker" "rm" "-f" "e0b23aded165bfd54a8e2414558e33f3aa4ec9e6669dea9aa16a80aa0fa8099b"`
[INFO] [stdout] e0b23aded165bfd54a8e2414558e33f3aa4ec9e6669dea9aa16a80aa0fa8099b