[INFO] fetching crate protosocket 0.8.0...
[INFO] testing protosocket-0.8.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate protosocket 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocket 0.8.0
[INFO] finished tweaking crates.io crate protosocket 0.8.0
[INFO] tweaked toml for crates.io crate protosocket 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocket 0.8.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protosocket 0.8.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
[INFO] [stderr] candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `futures v0.3.30`
[INFO] [stderr]     ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     futures-core = { version = "0.2.0-beta" }
[INFO] testing protosocket-0.8.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate protosocket 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocket 0.8.0
[INFO] finished tweaking crates.io crate protosocket 0.8.0
[INFO] tweaked toml for crates.io crate protosocket 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocket 0.8.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protosocket 0.8.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
[INFO] [stderr] candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `futures v0.3.30`
[INFO] [stderr]     ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     futures-core = { version = "0.2.0-beta" }
[INFO] testing protosocket-0.8.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate protosocket 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocket 0.8.0
[INFO] finished tweaking crates.io crate protosocket 0.8.0
[INFO] tweaked toml for crates.io crate protosocket 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocket 0.8.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protosocket 0.8.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
[INFO] [stderr] candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `futures v0.3.30`
[INFO] [stderr]     ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     futures-core = { version = "0.2.0-beta" }
[INFO] testing protosocket-0.8.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate protosocket 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocket 0.8.0
[INFO] finished tweaking crates.io crate protosocket 0.8.0
[INFO] tweaked toml for crates.io crate protosocket 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocket 0.8.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protosocket 0.8.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
[INFO] [stderr] candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `futures v0.3.30`
[INFO] [stderr]     ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     futures-core = { version = "0.2.0-beta" }
[INFO] testing protosocket-0.8.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237
[INFO] extracting crate protosocket 0.8.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate protosocket 0.8.0
[INFO] finished tweaking crates.io crate protosocket 0.8.0
[INFO] tweaked toml for crates.io crate protosocket 0.8.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate protosocket 0.8.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate protosocket 0.8.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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] error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
[INFO] [stderr] candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `futures v0.3.30`
[INFO] [stderr]     ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     futures-core = { version = "0.2.0-beta" }


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for the requirement `futures-core = "^0.3.30"` (locked to 0.3.30)
candidate versions found which didn't match: 0.3.9, 0.3.8, 0.3.7, ...
location searched: crates.io index
required by package `futures v0.3.30`
    ... which satisfies dependency `futures = "^0.3"` (locked to 0.3.30) of package `protosocket v0.8.0 (/workspace/builds/worker-4-tc2/source)`
if you are looking for the prerelease package it needs to be specified explicitly
    futures-core = { version = "0.2.0-beta" }