[INFO] fetching crate dyn-context-macro 0.0.6...
[INFO] testing dyn-context-macro-0.0.6 against 1.69.0 for beta-1.70-1
[INFO] extracting crate dyn-context-macro 0.0.6 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate dyn-context-macro 0.0.6 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dyn-context-macro 0.0.6
[INFO] finished tweaking crates.io crate dyn-context-macro 0.0.6
[INFO] tweaked toml for crates.io crate dyn-context-macro 0.0.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded single v1.0.1
[INFO] [stderr]   Downloaded try_match_inner v0.4.0
[INFO] [stderr]   Downloaded try_match v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f993668d38205d28499611e3ffa5505618ebe96bb14ab222cb73e311c042644f
[INFO] running `Command { std: "docker" "start" "-a" "f993668d38205d28499611e3ffa5505618ebe96bb14ab222cb73e311c042644f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f993668d38205d28499611e3ffa5505618ebe96bb14ab222cb73e311c042644f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f993668d38205d28499611e3ffa5505618ebe96bb14ab222cb73e311c042644f", kill_on_drop: false }`
[INFO] [stdout] f993668d38205d28499611e3ffa5505618ebe96bb14ab222cb73e311c042644f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ec755ac10ce2fedc9977cf524206ed2e7f324e20ead084dc2e0ec0c5b922837
[INFO] running `Command { std: "docker" "start" "-a" "2ec755ac10ce2fedc9977cf524206ed2e7f324e20ead084dc2e0ec0c5b922837", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling gimli v0.27.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling winnow v0.4.4
[INFO] [stderr]    Compiling toml_datetime v0.6.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling object v0.30.3
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling toml_edit v0.19.8
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling try_match_inner v0.4.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling try_match v0.3.0
[INFO] [stderr]    Compiling single v1.0.1
[INFO] [stderr]    Compiling dyn-context-macro v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated crate `single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Ok(path) = a.path.segments.iter().single() {
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:89:39
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]    |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:93:50
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]    |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:95:48
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]    |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:258:39
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]     |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:262:50
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]     |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:264:48
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]     |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.39s
[INFO] running `Command { std: "docker" "inspect" "2ec755ac10ce2fedc9977cf524206ed2e7f324e20ead084dc2e0ec0c5b922837", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec755ac10ce2fedc9977cf524206ed2e7f324e20ead084dc2e0ec0c5b922837", kill_on_drop: false }`
[INFO] [stdout] 2ec755ac10ce2fedc9977cf524206ed2e7f324e20ead084dc2e0ec0c5b922837
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61734e06b9c4dc5e6f00f9b27eee9c43b453ee6c3111b72b0d40a0862366f14a
[INFO] running `Command { std: "docker" "start" "-a" "61734e06b9c4dc5e6f00f9b27eee9c43b453ee6c3111b72b0d40a0862366f14a", kill_on_drop: false }`
[INFO] [stderr]    Compiling dyn-context-macro v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated crate `single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Ok(path) = a.path.segments.iter().single() {
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:89:39
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]    |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:93:50
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]    |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:95:48
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]    |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated crate `single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:14:20
[INFO] [stdout]    |
[INFO] [stdout] 14 | use single::{self, Single};
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:258:39
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]     |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:262:50
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]     |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:264:48
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]     |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:80:46
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Ok(path) = a.path.segments.iter().single() {
[INFO] [stdout]    |                                              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:89:39
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]    |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:93:50
[INFO] [stdout]    |
[INFO] [stdout] 93 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]    |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]   --> src/lib.rs:95:48
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]    |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:258:39
[INFO] [stdout]     |
[INFO] [stdout] 258 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stdout]     |                                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:262:50
[INFO] [stdout]     |
[INFO] [stdout] 262 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stdout]     |                                                  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stdout]    --> src/lib.rs:264:48
[INFO] [stdout]     |
[INFO] [stdout] 264 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stdout]     |                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "61734e06b9c4dc5e6f00f9b27eee9c43b453ee6c3111b72b0d40a0862366f14a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61734e06b9c4dc5e6f00f9b27eee9c43b453ee6c3111b72b0d40a0862366f14a", kill_on_drop: false }`
[INFO] [stdout] 61734e06b9c4dc5e6f00f9b27eee9c43b453ee6c3111b72b0d40a0862366f14a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32f72429dd596084ff74dc29aed4bf7ab80ec6bdc6ac401a593bf842ec1dec1e
[INFO] running `Command { std: "docker" "start" "-a" "32f72429dd596084ff74dc29aed4bf7ab80ec6bdc6ac401a593bf842ec1dec1e", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated crate `single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use single::{self, Single};
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `single::Single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:14:20
[INFO] [stderr]    |
[INFO] [stderr] 14 | use single::{self, Single};
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:80:46
[INFO] [stderr]    |
[INFO] [stderr] 80 |     if let Ok(path) = a.path.segments.iter().single() {
[INFO] [stderr]    |                                              ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:89:39
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stderr]    |                                       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:93:50
[INFO] [stderr]    |
[INFO] [stderr] 93 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stderr]    |                                                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]   --> src/lib.rs:95:48
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stderr]    |                                                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]    --> src/lib.rs:258:39
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let path = a.path.segments.iter().single().ok()?;
[INFO] [stderr]     |                                       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]    --> src/lib.rs:262:50
[INFO] [stderr]     |
[INFO] [stderr] 262 |         let token = a.tokens.clone().into_iter().single().ok()?;
[INFO] [stderr]     |                                                  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `single::Single::single`: use [`Itertools::at_most_one`](https://docs.rs/itertools/latest/itertools/trait.Itertools.html#method.at_most_one) instead
[INFO] [stderr]    --> src/lib.rs:264:48
[INFO] [stderr]     |
[INFO] [stderr] 264 |         let token = group.stream().into_iter().single().ok()?;
[INFO] [stderr]     |                                                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dyn-context-macro` (lib) generated 9 warnings
[INFO] [stderr] warning: `dyn-context-macro` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/dyn_context_macro-480375a44c804038)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dyn-context-macro
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "32f72429dd596084ff74dc29aed4bf7ab80ec6bdc6ac401a593bf842ec1dec1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f72429dd596084ff74dc29aed4bf7ab80ec6bdc6ac401a593bf842ec1dec1e", kill_on_drop: false }`
[INFO] [stdout] 32f72429dd596084ff74dc29aed4bf7ab80ec6bdc6ac401a593bf842ec1dec1e
