[INFO] fetching crate io_ext 0.2.0...
[INFO] testing io_ext-0.2.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate io_ext 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate io_ext 0.2.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io_ext 0.2.0
[INFO] finished tweaking crates.io crate io_ext 0.2.0
[INFO] tweaked toml for crates.io crate io_ext 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95997124ee43c3ab0ee3249227ac3def8a741c5f9b63a09cf201fd04a52b9bc5
[INFO] running `Command { std: "docker" "start" "-a" "95997124ee43c3ab0ee3249227ac3def8a741c5f9b63a09cf201fd04a52b9bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95997124ee43c3ab0ee3249227ac3def8a741c5f9b63a09cf201fd04a52b9bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95997124ee43c3ab0ee3249227ac3def8a741c5f9b63a09cf201fd04a52b9bc5", kill_on_drop: false }`
[INFO] [stdout] 95997124ee43c3ab0ee3249227ac3def8a741c5f9b63a09cf201fd04a52b9bc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b95c1c6e76c97f8b7d3b23ec08f5420b697cbb76c55746f729c714d8c7c3449
[INFO] running `Command { std: "docker" "start" "-a" "5b95c1c6e76c97f8b7d3b23ec08f5420b697cbb76c55746f729c714d8c7c3449", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_ext v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "5b95c1c6e76c97f8b7d3b23ec08f5420b697cbb76c55746f729c714d8c7c3449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b95c1c6e76c97f8b7d3b23ec08f5420b697cbb76c55746f729c714d8c7c3449", kill_on_drop: false }`
[INFO] [stdout] 5b95c1c6e76c97f8b7d3b23ec08f5420b697cbb76c55746f729c714d8c7c3449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a58f0d4cde0f5bae90a20fcf8ce07dd5ee76da83b94439a5f392f112806108c
[INFO] running `Command { std: "docker" "start" "-a" "3a58f0d4cde0f5bae90a20fcf8ce07dd5ee76da83b94439a5f392f112806108c", kill_on_drop: false }`
[INFO] [stderr]    Compiling io_ext v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "3a58f0d4cde0f5bae90a20fcf8ce07dd5ee76da83b94439a5f392f112806108c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a58f0d4cde0f5bae90a20fcf8ce07dd5ee76da83b94439a5f392f112806108c", kill_on_drop: false }`
[INFO] [stdout] 3a58f0d4cde0f5bae90a20fcf8ce07dd5ee76da83b94439a5f392f112806108c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d4b56de1145099974959b1cb6d64feecacff7ecb34fd458ade855e2ea01b5ebd
[INFO] running `Command { std: "docker" "start" "-a" "d4b56de1145099974959b1cb6d64feecacff7ecb34fd458ade855e2ea01b5ebd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/io_ext-33870c4b5fb1673e)
[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 io_ext
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/read.rs - read::ReadExt (line 65) ... ok
[INFO] [stdout] test src/write.rs - write::WriteExt (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d4b56de1145099974959b1cb6d64feecacff7ecb34fd458ade855e2ea01b5ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4b56de1145099974959b1cb6d64feecacff7ecb34fd458ade855e2ea01b5ebd", kill_on_drop: false }`
[INFO] [stdout] d4b56de1145099974959b1cb6d64feecacff7ecb34fd458ade855e2ea01b5ebd