[INFO] fetching crate monotone 0.4.0...
[INFO] checking monotone-0.4.0 against master#00bfd6b2734d9c28a147bf237490995731781fdd for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain 00bfd6b2734d9c28a147bf237490995731781fdd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+00bfd6b2734d9c28a147bf237490995731781fdd" "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] error: failed to select a version for the requirement `ring = "^0.6"`
[INFO] [stderr] candidate versions found which didn't match: 0.17.5, 0.17.5-alpha.1, 0.17.4, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `rusoto v0.23.0`
[INFO] [stderr]     ... which satisfies dependency `rusoto = "^0.23.0"` of package `monotone v0.4.0 (/workspace/builds/worker-7-tc1/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     ring = { version = "0.17.5-alpha.1" }
[INFO] [stderr] perhaps a crate was updated and forgotten to be re-vendored?
[ERROR] this task or one of its parent failed!
[ERROR] overridden task result to broken:yanked
[ERROR] caused by: the crate depends on yanked dependencies
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking monotone-0.4.0 against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "generate-lockfile" "--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
[INFO] checking monotone-0.4.0 against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "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] error: failed to select a version for the requirement `ring = "^0.6"`
[INFO] [stderr] candidate versions found which didn't match: 0.17.5, 0.17.5-alpha.1, 0.17.4, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `rusoto v0.23.0`
[INFO] [stderr]     ... which satisfies dependency `rusoto = "^0.23.0"` of package `monotone v0.4.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     ring = { version = "0.17.5-alpha.1" }
[INFO] [stderr] perhaps a crate was updated and forgotten to be re-vendored?
[INFO] checking monotone-0.4.0 against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "generate-lockfile" "--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
[INFO] checking monotone-0.4.0 against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "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] error: failed to select a version for the requirement `ring = "^0.6"`
[INFO] [stderr] candidate versions found which didn't match: 0.17.5, 0.17.5-alpha.1, 0.17.4, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `rusoto v0.23.0`
[INFO] [stderr]     ... which satisfies dependency `rusoto = "^0.23.0"` of package `monotone v0.4.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     ring = { version = "0.17.5-alpha.1" }
[INFO] [stderr] perhaps a crate was updated and forgotten to be re-vendored?
[INFO] checking monotone-0.4.0 against try#aa7c6ba69acce8b10a275eabfe6157ea72c8b599 for pr-117984
[INFO] extracting crate monotone 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate monotone 0.4.0 on toolchain aa7c6ba69acce8b10a275eabfe6157ea72c8b599
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate monotone 0.4.0
[INFO] finished tweaking crates.io crate monotone 0.4.0
[INFO] tweaked toml for crates.io crate monotone 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa7c6ba69acce8b10a275eabfe6157ea72c8b599" "generate-lockfile" "--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.