[INFO] fetching crate rustyq 0.6.0...
[INFO] testing rustyq-0.6.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate rustyq 0.6.0 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate rustyq 0.6.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustyq 0.6.0
[INFO] finished tweaking crates.io crate rustyq 0.6.0
[INFO] tweaked toml for crates.io crate rustyq 0.6.0 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zmtp v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 44a39af4124807f110349e0e28182586125cfba8cf468e36af13844d484c227c
[INFO] running `Command { std: "docker" "start" "-a" "44a39af4124807f110349e0e28182586125cfba8cf468e36af13844d484c227c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44a39af4124807f110349e0e28182586125cfba8cf468e36af13844d484c227c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a39af4124807f110349e0e28182586125cfba8cf468e36af13844d484c227c", kill_on_drop: false }`
[INFO] [stdout] 44a39af4124807f110349e0e28182586125cfba8cf468e36af13844d484c227c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb86ca8636d86535904105db9584ec1094608e6e3fff47175cf93ebcd013a27a
[INFO] running `Command { std: "docker" "start" "-a" "fb86ca8636d86535904105db9584ec1094608e6e3fff47175cf93ebcd013a27a", kill_on_drop: false }`
[INFO] [stderr]    Compiling zmtp v0.6.0
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/zmtp-0.6.0/src/reader.rs:152:35
[INFO] [stdout]     |
[INFO] [stdout] 152 |             cmd.add_metadata(name.borrow(), val_bytes);
[INFO] [stdout]     |                              -----^^^^^^--
[INFO] [stdout]     |                              |    |
[INFO] [stdout]     |                              |    cannot infer type for type parameter `Borrowed` declared on the trait `Borrow`
[INFO] [stdout]     |                              this method call resolves to `&Borrowed`
[INFO] [stdout]     |                              help: use the fully qualified path for the potential candidate: `<Cow<'a, B> as Borrow<B>>::borrow(name)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: multiple `impl`s satisfying `Cow<'_, str>: Borrow<_>` found in the following crates: `alloc`, `core`:
[INFO] [stdout]             - impl<'a, B> Borrow<B> for Cow<'a, B>
[INFO] [stdout]               where B: ToOwned, <B as ToOwned>::Owned: 'a, B: ?Sized;
[INFO] [stdout]             - impl<T> Borrow<T> for T
[INFO] [stdout]               where T: ?Sized;
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/zmtp-0.6.0/src/reader.rs:152:17
[INFO] [stdout]     |
[INFO] [stdout] 152 |             cmd.add_metadata(name.borrow(), val_bytes);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ cannot infer type for reference `&_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: multiple `impl`s satisfying `String: From<&_>` found in the `alloc` crate:
[INFO] [stdout]             - impl<> From<&String> for String;
[INFO] [stdout]             - impl<> From<&str> for String;
[INFO] [stdout]     = note: required because of the requirements on the impl of `Into<String>` for `&_`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zmtp` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fb86ca8636d86535904105db9584ec1094608e6e3fff47175cf93ebcd013a27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb86ca8636d86535904105db9584ec1094608e6e3fff47175cf93ebcd013a27a", kill_on_drop: false }`
[INFO] [stdout] fb86ca8636d86535904105db9584ec1094608e6e3fff47175cf93ebcd013a27a