[INFO] fetching crate memflowup 0.1.0-beta11...
[INFO] testing memflowup-0.1.0-beta11 against master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing memflowup-0.1.0-beta11 against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[INFO] testing memflowup-0.1.0-beta11 against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing memflowup-0.1.0-beta11 against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing memflowup-0.1.0-beta11 against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing memflowup-0.1.0-beta11 against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] extracting crate memflowup 0.1.0-beta11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memflowup 0.1.0-beta11 on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] finished tweaking crates.io crate memflowup 0.1.0-beta11
[INFO] tweaked toml for crates.io crate memflowup 0.1.0-beta11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memflowup 0.1.0-beta11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.