[INFO] fetching crate future-by-example 0.1.0...
[INFO] testing future-by-example-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate future-by-example 0.1.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate future-by-example 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate future-by-example 0.1.0
[INFO] finished tweaking crates.io crate future-by-example 0.1.0
[INFO] tweaked toml for crates.io crate future-by-example 0.1.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09fb446762ec67f89fa6b76c477c7e24fc8580c99a9d973be601701011eb0c2d
[INFO] running `Command { std: "docker" "start" "-a" "09fb446762ec67f89fa6b76c477c7e24fc8580c99a9d973be601701011eb0c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09fb446762ec67f89fa6b76c477c7e24fc8580c99a9d973be601701011eb0c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09fb446762ec67f89fa6b76c477c7e24fc8580c99a9d973be601701011eb0c2d", kill_on_drop: false }`
[INFO] [stdout] 09fb446762ec67f89fa6b76c477c7e24fc8580c99a9d973be601701011eb0c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d0f983fd68924034d7e6f8600230ed1b44a171995121826f77a72d5ee8b111a
[INFO] running `Command { std: "docker" "start" "-a" "9d0f983fd68924034d7e6f8600230ed1b44a171995121826f77a72d5ee8b111a", kill_on_drop: false }`
[INFO] [stderr]    Compiling future-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "9d0f983fd68924034d7e6f8600230ed1b44a171995121826f77a72d5ee8b111a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0f983fd68924034d7e6f8600230ed1b44a171995121826f77a72d5ee8b111a", kill_on_drop: false }`
[INFO] [stdout] 9d0f983fd68924034d7e6f8600230ed1b44a171995121826f77a72d5ee8b111a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90d91fb183157ded7ab482db5a75e2ea940072147b1af57bcc30ede827fedd59
[INFO] running `Command { std: "docker" "start" "-a" "90d91fb183157ded7ab482db5a75e2ea940072147b1af57bcc30ede827fedd59", kill_on_drop: false }`
[INFO] [stderr]    Compiling future-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "90d91fb183157ded7ab482db5a75e2ea940072147b1af57bcc30ede827fedd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90d91fb183157ded7ab482db5a75e2ea940072147b1af57bcc30ede827fedd59", kill_on_drop: false }`
[INFO] [stdout] 90d91fb183157ded7ab482db5a75e2ea940072147b1af57bcc30ede827fedd59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 75f283ef1c3c0de88cde9c4360dc65abbf8c6f31430797d3d977e38c924ca923
[INFO] running `Command { std: "docker" "start" "-a" "75f283ef1c3c0de88cde9c4360dc65abbf8c6f31430797d3d977e38c924ca923", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/future_by_example-e8886454326f8590)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests future-by-example
[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] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - (line 169) ... ok
[INFO] [stdout] test src/lib.rs - (line 132) ... ok
[INFO] [stdout] test src/lib.rs - (line 252) ... ok
[INFO] [stdout] test src/lib.rs - (line 186) ... ok
[INFO] [stdout] test src/lib.rs - (line 232) ... ok
[INFO] [stdout] test src/lib.rs - (line 71) ... ok
[INFO] [stdout] test src/lib.rs - (line 101) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 288) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "75f283ef1c3c0de88cde9c4360dc65abbf8c6f31430797d3d977e38c924ca923", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f283ef1c3c0de88cde9c4360dc65abbf8c6f31430797d3d977e38c924ca923", kill_on_drop: false }`
[INFO] [stdout] 75f283ef1c3c0de88cde9c4360dc65abbf8c6f31430797d3d977e38c924ca923