[INFO] fetching crate improv 1.0.0-beta.1...
[INFO] testing improv-1.0.0-beta.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate improv 1.0.0-beta.1 into /workspace/builds/worker-68/source
[INFO] validating manifest of crates.io crate improv 1.0.0-beta.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate improv 1.0.0-beta.1
[INFO] finished tweaking crates.io crate improv 1.0.0-beta.1
[INFO] tweaked toml for crates.io crate improv 1.0.0-beta.1 written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c01e5a911ab1094fa3ae5a4c29df134670302fc88c2c5b472fcb58cbe909b22f
[INFO] running `Command { std: "docker" "start" "-a" "c01e5a911ab1094fa3ae5a4c29df134670302fc88c2c5b472fcb58cbe909b22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c01e5a911ab1094fa3ae5a4c29df134670302fc88c2c5b472fcb58cbe909b22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c01e5a911ab1094fa3ae5a4c29df134670302fc88c2c5b472fcb58cbe909b22f", kill_on_drop: false }`
[INFO] [stdout] c01e5a911ab1094fa3ae5a4c29df134670302fc88c2c5b472fcb58cbe909b22f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca85be7b27af0ffe4e9536513c530d743c40c7cd0af64cf574fa0b8a38166ad3
[INFO] running `Command { std: "docker" "start" "-a" "ca85be7b27af0ffe4e9536513c530d743c40c7cd0af64cf574fa0b8a38166ad3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling improv v1.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/addr.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/addr.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[inline]
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.11s
[INFO] running `Command { std: "docker" "inspect" "ca85be7b27af0ffe4e9536513c530d743c40c7cd0af64cf574fa0b8a38166ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca85be7b27af0ffe4e9536513c530d743c40c7cd0af64cf574fa0b8a38166ad3", kill_on_drop: false }`
[INFO] [stdout] ca85be7b27af0ffe4e9536513c530d743c40c7cd0af64cf574fa0b8a38166ad3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfe16c65c8f85bdcc1bebdd86412e08e9b4385ad7ed366c5eac71bfd7d18ff34
[INFO] running `Command { std: "docker" "start" "-a" "dfe16c65c8f85bdcc1bebdd86412e08e9b4385ad7ed366c5eac71bfd7d18ff34", kill_on_drop: false }`
[INFO] [stderr]    Compiling improv v1.0.0-beta.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/addr.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/addr.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[inline]
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]   --> src/addr.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     #[inline]
[INFO] [stdout]    |     ^^^^^^^^^ help: remove this attribute
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]   --> src/addr.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[inline]
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "dfe16c65c8f85bdcc1bebdd86412e08e9b4385ad7ed366c5eac71bfd7d18ff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe16c65c8f85bdcc1bebdd86412e08e9b4385ad7ed366c5eac71bfd7d18ff34", kill_on_drop: false }`
[INFO] [stdout] dfe16c65c8f85bdcc1bebdd86412e08e9b4385ad7ed366c5eac71bfd7d18ff34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 01dac9802f686924e98f25b58279947f6175f0f9275fe97760520114fe616a63
[INFO] running `Command { std: "docker" "start" "-a" "01dac9802f686924e98f25b58279947f6175f0f9275fe97760520114fe616a63", 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] [stdout] 
[INFO] [stderr] warning: unused attribute
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/addr.rs:52:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 52 |     #[inline]
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^ help: remove this attribute
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] note: attribute also specified here
[INFO] [stderr]   --> src/addr.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     #[inline]
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: `improv` (lib) generated 1 warning
[INFO] [stderr] warning: `improv` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/improv-1c0caaa9d76312c3)
[INFO] [stderr]      Running tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-7a3204c2f3c50d2d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ask ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests improv
[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" "01dac9802f686924e98f25b58279947f6175f0f9275fe97760520114fe616a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01dac9802f686924e98f25b58279947f6175f0f9275fe97760520114fe616a63", kill_on_drop: false }`
[INFO] [stdout] 01dac9802f686924e98f25b58279947f6175f0f9275fe97760520114fe616a63