[INFO] fetching crate fc-rpc 1.0.0...
[INFO] checking fc-rpc-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fc-rpc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fc-rpc 1.0.0
[INFO] finished tweaking crates.io crate fc-rpc 1.0.0
[INFO] tweaked toml for crates.io crate fc-rpc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fc-rpc 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict
[INFO] checking fc-rpc-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fc-rpc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fc-rpc 1.0.0
[INFO] finished tweaking crates.io crate fc-rpc 1.0.0
[INFO] tweaked toml for crates.io crate fc-rpc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fc-rpc 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict
[INFO] checking fc-rpc-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fc-rpc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fc-rpc 1.0.0
[INFO] finished tweaking crates.io crate fc-rpc 1.0.0
[INFO] tweaked toml for crates.io crate fc-rpc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fc-rpc 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict
[INFO] checking fc-rpc-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fc-rpc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fc-rpc 1.0.0
[INFO] finished tweaking crates.io crate fc-rpc 1.0.0
[INFO] tweaked toml for crates.io crate fc-rpc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fc-rpc 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict
[INFO] checking fc-rpc-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fc-rpc 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate fc-rpc 1.0.0
[INFO] finished tweaking crates.io crate fc-rpc 1.0.0
[INFO] tweaked toml for crates.io crate fc-rpc 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fc-rpc 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `snow`.
[INFO] [stderr]     ... required by package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `snow v0.7.1`
[INFO] [stderr]     ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
[INFO] [stderr]     ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `snow` which could resolve this conflict


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for `snow`.
    ... required by package `libp2p-noise v0.29.0`
    ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
    ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
    ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`
versions that meet the requirements `^0.7.1` are: 0.7.2, 0.7.1

all possible versions conflict with previously selected packages.

  previously selected package `snow v0.7.1`
    ... which satisfies dependency `snow = "^0.7.1"` of package `libp2p-noise v0.29.0`
    ... which satisfies dependency `libp2p-noise = "^0.29.0"` of package `libp2p v0.34.0`
    ... which satisfies dependency `libp2p = "^0.34.0"` of package `sc-network v0.9.0`
    ... which satisfies dependency `sc-network = "^0.9.0"` of package `fc-rpc v1.0.0 (/workspace/builds/worker-5-tc2/source)`

failed to select a version for `snow` which could resolve this conflict