[INFO] cloning repository https://github.com/playdog-io/substrate-dev-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playdog-io/substrate-dev-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e53e1e08611636ac2eda1401fa606812fd1317a
[INFO] checking playdog-io/substrate-dev-learn against master#d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/paritytech/substrate.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.18
[INFO] [stderr]   Downloaded proc-macro2 v1.0.26
[INFO] [stderr]   Downloaded async-channel v1.6.1
[INFO] [stderr]   Downloaded sp-std v3.0.0
[INFO] [stderr]   Downloaded polling v2.0.3
[INFO] [stderr]   Downloaded instant v0.1.9
[INFO] [stderr]   Downloaded concurrent-queue v1.2.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] [stderr]   Downloaded primitive-types v0.9.0
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.6
[INFO] [stderr]   Downloaded parity-util-mem v0.9.0
[INFO] [stderr]   Downloaded arrayvec v0.7.0
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded socket2 v0.4.0
[INFO] [stderr]   Downloaded nohash-hasher v0.2.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.17
[INFO] [stderr]   Downloaded jsonrpc-http-server v15.1.0
[INFO] [stderr]   Downloaded parity-wasm v0.32.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.74
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded memory-db v0.26.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.19
[INFO] [stderr]   Downloaded paste v1.0.5
[INFO] [stderr]   Downloaded scroll_derive v0.10.5
[INFO] [stderr]   Downloaded cranelift-wasm v0.71.0
[INFO] [stderr]   Downloaded data-encoding-macro-internal v0.1.9
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded dirs-sys-next v0.1.2
[INFO] [stderr]   Downloaded alga v0.9.3
[INFO] [stderr]   Downloaded want v0.3.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.1
[INFO] [stderr]   Downloaded http v0.2.4
[INFO] [stderr]   Downloaded nalgebra v0.19.0
[INFO] [stderr]   Downloaded memmap2 v0.2.2
[INFO] [stderr]   Downloaded openssl-probe v0.1.4
[INFO] [stderr]   Downloaded gimli v0.24.0
[INFO] [stderr]   Downloaded nalgebra v0.25.4
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] [stderr]   Downloaded scroll v0.10.2
[INFO] [stderr]   Downloaded libp2p-identify v0.29.0
[INFO] [stderr]   Downloaded cuckoofilter v0.5.0
[INFO] [stderr]   Downloaded hex_fmt v0.3.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.4
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded waker-fn v1.1.0
[INFO] [stderr]   Downloaded cargo_metadata v0.13.1
[INFO] [stderr]   Downloaded httparse v1.4.1
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] [stderr]   Downloaded prometheus v0.11.0
[INFO] [stderr]   Downloaded bytes v1.0.1
[INFO] [stderr]   Downloaded futures-lite v1.11.3
[INFO] [stderr]   Downloaded pin-project v1.0.7
[INFO] [stderr]   Downloaded build-helper v0.1.1
[INFO] [stderr]   Downloaded kvdb v0.9.0
[INFO] [stderr]   Downloaded cargo-platform v0.1.1
[INFO] [stderr]   Downloaded wasm-timer v0.2.5
[INFO] [stderr]   Downloaded wasm-gc-api v0.1.11
[INFO] [stderr]   Downloaded simba v0.4.0
[INFO] [stderr]   Downloaded signal-hook v0.3.8
[INFO] [stderr]   Downloaded try-lock v0.2.3
[INFO] [stderr]   Downloaded generic-array v0.13.3
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded exit-future v0.2.0
[INFO] [stderr]   Downloaded nom v5.1.2
[INFO] [stderr]   Downloaded wasmtime-environ v0.24.0
[INFO] [stderr]   Downloaded leb128 v0.2.4
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded dirs-sys v0.3.6
[INFO] [stderr]   Downloaded jsonrpc-core v15.1.0
[INFO] [stderr]   Downloaded cloudabi v0.0.3
[INFO] [stderr]   Downloaded gimli v0.23.0
[INFO] [stderr]   Downloaded kvdb-memorydb v0.9.0
[INFO] [stderr]   Downloaded async-std v1.9.0
[INFO] [stderr]   Downloaded fs-swap v0.2.6
[INFO] [stderr]   Downloaded wat v1.0.37
[INFO] [stderr]   Downloaded jsonrpc-core-client v15.1.0
[INFO] [stderr]   Downloaded libp2p-dns v0.28.1
[INFO] [stderr]   Downloaded zstd-sys v1.4.20+zstd.1.4.9
[INFO] [stderr]   Downloaded base-x v0.2.8
[INFO] [stderr]   Downloaded linked_hash_set v0.1.4
[INFO] [stderr]   Downloaded blocking v1.0.2
[INFO] [stderr]   Downloaded data-encoding-macro v0.1.10
[INFO] [stderr]   Downloaded object v0.23.0
[INFO] [stderr]   Downloaded regalloc v0.0.31
[INFO] [stderr]   Downloaded object v0.24.0
[INFO] [stderr]   Downloaded libp2p-mdns v0.30.2
[INFO] [stderr]   Downloaded itertools v0.10.0
[INFO] [stderr]   Downloaded parity-ws v0.10.0
[INFO] [stderr]   Downloaded backtrace v0.3.59
[INFO] [stderr]   Downloaded futures-util v0.3.15
[INFO] [stderr]   Downloaded handlebars v3.5.5
[INFO] [stderr]   Downloaded libz-sys v1.1.3
[INFO] [stderr]   Downloaded libsecp256k1 v0.3.5
[INFO] [stderr]   Downloaded cranelift-bforest v0.71.0
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.71.0
[INFO] [stderr]   Downloaded target-lexicon v0.11.2
[INFO] [stderr]   Downloaded fallible-iterator v0.2.0
[INFO] [stderr]   Downloaded erased-serde v0.3.13
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded futures-diagnose v1.0.1
[INFO] [stderr]   Downloaded intervalier v0.4.0
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded structopt-derive v0.4.14
[INFO] [stderr]   Downloaded platforms v1.1.0
[INFO] [stderr]   Downloaded base58 v0.1.0
[INFO] [stderr]   Downloaded arrayvec v0.4.12
[INFO] [stderr]   Downloaded blake2-rfc v0.2.18
[INFO] [stderr]   Downloaded dyn-clone v1.0.4
[INFO] [stderr]   Downloaded futures-sink v0.3.15
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded hash256-std-hasher v0.15.2
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.3
[INFO] [stderr]   Downloaded tokio-timer v0.2.13
[INFO] [stderr]   Downloaded security-framework v1.0.0
[INFO] [stderr]   Downloaded fdlimit v0.2.1
[INFO] [stderr]   Downloaded names v0.11.0
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[INFO] [stderr]   Downloaded bstr v0.2.16
[INFO] [stderr]   Downloaded tokio-rustls v0.14.1
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.7
[INFO] [stderr]   Downloaded parity-db v0.2.3
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking playdog-io/substrate-dev-learn against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `parity-db v0.2.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[INFO] checking playdog-io/substrate-dev-learn against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `parity-db v0.2.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[INFO] checking playdog-io/substrate-dev-learn against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `parity-db v0.2.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[INFO] checking playdog-io/substrate-dev-learn against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `parity-db v0.2.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[INFO] checking playdog-io/substrate-dev-learn against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplaydog-io%2Fsubstrate-dev-learn" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playdog-io/substrate-dev-learn on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] finished tweaking git repo https://github.com/playdog-io/substrate-dev-learn
[INFO] tweaked toml for git repo https://github.com/playdog-io/substrate-dev-learn written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/playdog-io/substrate-dev-learn 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `parity-db v0.2.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/parity-db-0.2.3/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse the version requirement `0.11	` for dependency `parking_lot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   expected comma after minor version number, found '\t'
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.