[INFO] fetching crate async-coap-uri 0.1.0...
[INFO] checking async-coap-uri-0.1.0 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate async-coap-uri 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate async-coap-uri 0.1.0 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47fa3986c518c63308ba1b56e420df4b7842980f42eeb46b9c9077931371060d
[INFO] running `Command { std: "docker" "start" "-a" "47fa3986c518c63308ba1b56e420df4b7842980f42eeb46b9c9077931371060d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47fa3986c518c63308ba1b56e420df4b7842980f42eeb46b9c9077931371060d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fa3986c518c63308ba1b56e420df4b7842980f42eeb46b9c9077931371060d", kill_on_drop: false }`
[INFO] [stdout] 47fa3986c518c63308ba1b56e420df4b7842980f42eeb46b9c9077931371060d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9c54ccf86b7ce14204c07e63a647ed97e1f0e3be5b7fd0c7f9a55b96f5bc509
[INFO] running `Command { std: "docker" "start" "-a" "a9c54ccf86b7ce14204c07e63a647ed97e1f0e3be5b7fd0c7f9a55b96f5bc509", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling async-coap-uri-macros v0.1.0
[INFO] [stderr]     Checking async-coap-uri v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]   --> src/uri_ref.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use super::*;
[INFO] [stdout]    |     -------- the item `Cow` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 21 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Cow` is imported redundantly
[INFO] [stdout]   --> src/uri_ref.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use super::*;
[INFO] [stdout]    |     -------- the item `Cow` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 21 | use std::borrow::Cow;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `UriType` is imported redundantly
[INFO] [stdout]    --> src/uri_type.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |     use crate::{UriType, *};
[INFO] [stdout]     |                 ^^^^^^^  - the item `UriType` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 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]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout]    = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "a9c54ccf86b7ce14204c07e63a647ed97e1f0e3be5b7fd0c7f9a55b96f5bc509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9c54ccf86b7ce14204c07e63a647ed97e1f0e3be5b7fd0c7f9a55b96f5bc509", kill_on_drop: false }`
[INFO] [stdout] a9c54ccf86b7ce14204c07e63a647ed97e1f0e3be5b7fd0c7f9a55b96f5bc509
