[INFO] fetching crate async-coap-uri 0.1.0...
[INFO] testing async-coap-uri-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate async-coap-uri 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate async-coap-uri 0.1.0
[INFO] finished tweaking crates.io crate async-coap-uri 0.1.0
[INFO] tweaked toml for crates.io crate async-coap-uri 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-coap-uri 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-coap-uri-macros v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72d3a971d534062536a1cc29a800afcc12beea50afdb594daf41407b25458d08
[INFO] running `Command { std: "docker" "start" "-a" "72d3a971d534062536a1cc29a800afcc12beea50afdb594daf41407b25458d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72d3a971d534062536a1cc29a800afcc12beea50afdb594daf41407b25458d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d3a971d534062536a1cc29a800afcc12beea50afdb594daf41407b25458d08", kill_on_drop: false }`
[INFO] [stdout] 72d3a971d534062536a1cc29a800afcc12beea50afdb594daf41407b25458d08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 992b598ecebb59ed47e7cdc951c55566c6fcff0daad5f526475bf9bd65829622
[INFO] running `Command { std: "docker" "start" "-a" "992b598ecebb59ed47e7cdc951c55566c6fcff0daad5f526475bf9bd65829622", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling async-coap-uri-macros v0.1.0
[INFO] [stderr]    Compiling async-coap-uri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown `doc` attribute `unstable`
[INFO] [stdout]   --> src/uri_unescape_buf.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 | #[doc(unstable)]
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-coap-uri` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stdout] warning: field `needs_escape` is never read
[INFO] [stdout]    --> src/escape/escape_uri.rs:154:16
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub struct EscapeUri<'a, X: NeedsEscape = EscapeUriSegment> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 154 |     pub(super) needs_escape: X,
[INFO] [stdout]     |                ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EscapeUri` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calling this function with a null pointer is undefined behavior, even if the result of the function is unused
[INFO] [stdout]    --> src/uri_ref.rs:108:31
[INFO] [stdout]     |
[INFO] [stdout] 108 |             let empty_slice = from_raw_parts_mut(0usize as *mut u8, 0);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  null pointer originates from here
[INFO] [stdout]     |
[INFO] [stdout]     = help: for more information, visit <https://doc.rust-lang.org/std/ptr/index.html> and <https://doc.rust-lang.org/reference/behavior-considered-undefined.html>
[INFO] [stdout]     = note: `#[deny(invalid_null_arguments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calling this function with a null pointer is undefined behavior, even if the result of the function is unused
[INFO] [stdout]    --> src/rel_ref.rs:110:31
[INFO] [stdout]     |
[INFO] [stdout] 110 |             let empty_slice = from_raw_parts_mut(0usize as *mut u8, 0);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^------^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  null pointer originates from here
[INFO] [stdout]     |
[INFO] [stdout]     = help: for more information, visit <https://doc.rust-lang.org/std/ptr/index.html> and <https://doc.rust-lang.org/reference/behavior-considered-undefined.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "992b598ecebb59ed47e7cdc951c55566c6fcff0daad5f526475bf9bd65829622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "992b598ecebb59ed47e7cdc951c55566c6fcff0daad5f526475bf9bd65829622", kill_on_drop: false }`
[INFO] [stdout] 992b598ecebb59ed47e7cdc951c55566c6fcff0daad5f526475bf9bd65829622
