[INFO] fetching crate taskio 0.1.0-alpha-1...
[INFO] testing taskio-0.1.0-alpha-1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate taskio 0.1.0-alpha-1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate taskio 0.1.0-alpha-1
[INFO] finished tweaking crates.io crate taskio 0.1.0-alpha-1
[INFO] tweaked toml for crates.io crate taskio 0.1.0-alpha-1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate taskio 0.1.0-alpha-1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 958e072459036ed75b66b35f37da1bd9bb59d61f43404cb47ae697a9bbb1bdec
[INFO] running `Command { std: "docker" "start" "-a" "958e072459036ed75b66b35f37da1bd9bb59d61f43404cb47ae697a9bbb1bdec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "958e072459036ed75b66b35f37da1bd9bb59d61f43404cb47ae697a9bbb1bdec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958e072459036ed75b66b35f37da1bd9bb59d61f43404cb47ae697a9bbb1bdec", kill_on_drop: false }`
[INFO] [stdout] 958e072459036ed75b66b35f37da1bd9bb59d61f43404cb47ae697a9bbb1bdec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3585b86ba537dd36baff441683f936d597fb60f131e3a1eede6458bc51d40ee
[INFO] running `Command { std: "docker" "start" "-a" "b3585b86ba537dd36baff441683f936d597fb60f131e3a1eede6458bc51d40ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling taskio v0.1.0-alpha-1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b3585b86ba537dd36baff441683f936d597fb60f131e3a1eede6458bc51d40ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3585b86ba537dd36baff441683f936d597fb60f131e3a1eede6458bc51d40ee", kill_on_drop: false }`
[INFO] [stdout] b3585b86ba537dd36baff441683f936d597fb60f131e3a1eede6458bc51d40ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2419705deee31ce9af81ce8c34145e1625fe15bcce017b40d3e988f695cef272
[INFO] running `Command { std: "docker" "start" "-a" "2419705deee31ce9af81ce8c34145e1625fe15bcce017b40d3e988f695cef272", kill_on_drop: false }`
[INFO] [stderr]    Compiling taskio v0.1.0-alpha-1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "2419705deee31ce9af81ce8c34145e1625fe15bcce017b40d3e988f695cef272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2419705deee31ce9af81ce8c34145e1625fe15bcce017b40d3e988f695cef272", kill_on_drop: false }`
[INFO] [stdout] 2419705deee31ce9af81ce8c34145e1625fe15bcce017b40d3e988f695cef272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6bb7b49a941ea3bd42afd24ea413026c36a9a2749a81a412d803b64b77cb503d
[INFO] running `Command { std: "docker" "start" "-a" "6bb7b49a941ea3bd42afd24ea413026c36a9a2749a81a412d803b64b77cb503d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/taskio-79efa804b291c49f)
[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 taskio
[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" "6bb7b49a941ea3bd42afd24ea413026c36a9a2749a81a412d803b64b77cb503d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb7b49a941ea3bd42afd24ea413026c36a9a2749a81a412d803b64b77cb503d", kill_on_drop: false }`
[INFO] [stdout] 6bb7b49a941ea3bd42afd24ea413026c36a9a2749a81a412d803b64b77cb503d