[INFO] fetching crate utf8-chars 3.0.5...
[INFO] testing utf8-chars-3.0.5 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate utf8-chars 3.0.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate utf8-chars 3.0.5
[INFO] finished tweaking crates.io crate utf8-chars 3.0.5
[INFO] tweaked toml for crates.io crate utf8-chars 3.0.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate utf8-chars 3.0.5 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d77091194ff2e14227ace5b0cf333bcb0b20ab2f49b0cecf89c72de807f176df
[INFO] running `Command { std: "docker" "start" "-a" "d77091194ff2e14227ace5b0cf333bcb0b20ab2f49b0cecf89c72de807f176df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77091194ff2e14227ace5b0cf333bcb0b20ab2f49b0cecf89c72de807f176df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77091194ff2e14227ace5b0cf333bcb0b20ab2f49b0cecf89c72de807f176df", kill_on_drop: false }`
[INFO] [stdout] d77091194ff2e14227ace5b0cf333bcb0b20ab2f49b0cecf89c72de807f176df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4be8a5f27018c3b7e4a79924d091610e22024cfea94fc19d3acd07c53d897c50
[INFO] running `Command { std: "docker" "start" "-a" "4be8a5f27018c3b7e4a79924d091610e22024cfea94fc19d3acd07c53d897c50", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-chars v3.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn chars(&mut self) -> Chars<Self> { Chars(self) }
[INFO] [stdout]     |              ^^^^^^^^^     ----------- the same lifetime is hidden here
[INFO] [stdout]     |              |
[INFO] [stdout]     |              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:3:9
[INFO] [stdout]     |
[INFO] [stdout]   3 | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(mismatched_lifetime_syntaxes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn chars(&mut self) -> Chars<'_, Self> { Chars(self) }
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn chars_raw(&mut self) -> CharsRaw<Self> { CharsRaw(self) }
[INFO] [stdout]     |                  ^^^^^^^^^     -------------- the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 140 |     fn chars_raw(&mut self) -> CharsRaw<'_, Self> { CharsRaw(self) }
[INFO] [stdout]     |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utf8-chars` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4be8a5f27018c3b7e4a79924d091610e22024cfea94fc19d3acd07c53d897c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4be8a5f27018c3b7e4a79924d091610e22024cfea94fc19d3acd07c53d897c50", kill_on_drop: false }`
[INFO] [stdout] 4be8a5f27018c3b7e4a79924d091610e22024cfea94fc19d3acd07c53d897c50