[INFO] fetching crate unicode_extension 0.4.0...
[INFO] testing unicode_extension-0.4.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate unicode_extension 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate unicode_extension 0.4.0
[INFO] finished tweaking crates.io crate unicode_extension 0.4.0
[INFO] tweaked toml for crates.io crate unicode_extension 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unicode_extension 0.4.0 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]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4e991291f65a293538e8a30345b4b249ccd40a59db177e13119f25de9f3eb3b4
[INFO] running `Command { std: "docker" "start" "-a" "4e991291f65a293538e8a30345b4b249ccd40a59db177e13119f25de9f3eb3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e991291f65a293538e8a30345b4b249ccd40a59db177e13119f25de9f3eb3b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e991291f65a293538e8a30345b4b249ccd40a59db177e13119f25de9f3eb3b4", kill_on_drop: false }`
[INFO] [stdout] 4e991291f65a293538e8a30345b4b249ccd40a59db177e13119f25de9f3eb3b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 97315ab498e14bf75880fbd7312668e7f3236f09f110dbd524dcfbaebc8a35eb
[INFO] running `Command { std: "docker" "start" "-a" "97315ab498e14bf75880fbd7312668e7f3236f09f110dbd524dcfbaebc8a35eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode_extension v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "97315ab498e14bf75880fbd7312668e7f3236f09f110dbd524dcfbaebc8a35eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97315ab498e14bf75880fbd7312668e7f3236f09f110dbd524dcfbaebc8a35eb", kill_on_drop: false }`
[INFO] [stdout] 97315ab498e14bf75880fbd7312668e7f3236f09f110dbd524dcfbaebc8a35eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a33812cf9d4ba0d7b9d87e2bfb765aae966a89b48c2dc9fecf6bca029f198c90
[INFO] running `Command { std: "docker" "start" "-a" "a33812cf9d4ba0d7b9d87e2bfb765aae966a89b48c2dc9fecf6bca029f198c90", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling unicode_extension v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "a33812cf9d4ba0d7b9d87e2bfb765aae966a89b48c2dc9fecf6bca029f198c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a33812cf9d4ba0d7b9d87e2bfb765aae966a89b48c2dc9fecf6bca029f198c90", kill_on_drop: false }`
[INFO] [stdout] a33812cf9d4ba0d7b9d87e2bfb765aae966a89b48c2dc9fecf6bca029f198c90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d852fa77f0189ae2b8fecc82771ef167f4bcf8a96443de243bbb6862781d4ecb
[INFO] running `Command { std: "docker" "start" "-a" "d852fa77f0189ae2b8fecc82771ef167f4bcf8a96443de243bbb6862781d4ecb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::fmt::Display`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fmt::Display;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stderr]  --> src/lib.rs:2:16
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::{Deref, DerefMut};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `unicode_extension` (lib) generated 2 warnings (run `cargo fix --lib -p unicode_extension` to apply 2 suggestions)
[INFO] [stderr] warning: `unicode_extension` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unicode_extension-b79bdc720d9d5b6b)
[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 unicode_extension
[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" "d852fa77f0189ae2b8fecc82771ef167f4bcf8a96443de243bbb6862781d4ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d852fa77f0189ae2b8fecc82771ef167f4bcf8a96443de243bbb6862781d4ecb", kill_on_drop: false }`
[INFO] [stdout] d852fa77f0189ae2b8fecc82771ef167f4bcf8a96443de243bbb6862781d4ecb