[INFO] cloning repository https://github.com/daniel071/gtkRamDownloader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daniel071/gtkRamDownloader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel071%2FgtkRamDownloader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel071%2FgtkRamDownloader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c322becac0f373a6e8e96bd7c00bff3c0fb411f
[INFO] checking daniel071/gtkRamDownloader against master#96df4943409564a187894018f15f795426dc2e1f for pr-118968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaniel071%2FgtkRamDownloader" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/daniel071/gtkRamDownloader on toolchain 96df4943409564a187894018f15f795426dc2e1f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daniel071/gtkRamDownloader
[INFO] finished tweaking git repo https://github.com/daniel071/gtkRamDownloader
[INFO] tweaked toml for git repo https://github.com/daniel071/gtkRamDownloader written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/daniel071/gtkRamDownloader 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" "+96df4943409564a187894018f15f795426dc2e1f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `proc-macro2`.
[INFO] [stderr]     ... required by package `syn v1.0.56`
[INFO] [stderr]     ... which satisfies dependency `syn = "^1.0.56"` of package `futures-macro v0.3.21`
[INFO] [stderr]     ... which satisfies dependency `futures-macro = "=0.3.21"` (locked to 0.3.21) of package `futures-util v0.3.21`
[INFO] [stderr]     ... which satisfies dependency `futures-util = "^0.3"` (locked to 0.3.21) of package `glib v0.10.1`
[INFO] [stderr]     ... which satisfies dependency `glib = "^0.10.1"` (locked to 0.10.1) of package `ramDownloader v0.1.0 (/workspace/builds/worker-4-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.23` are: 1.0.71, 1.0.70, 1.0.69, 1.0.68, 1.0.67, 1.0.66, 1.0.65, 1.0.64, 1.0.63, 1.0.61, 1.0.60, 1.0.59, 1.0.58, 1.0.57, 1.0.56, 1.0.55, 1.0.54, 1.0.53, 1.0.52, 1.0.51, 1.0.50, 1.0.49, 1.0.48, 1.0.47, 1.0.46, 1.0.45, 1.0.44, 1.0.43, 1.0.42, 1.0.41, 1.0.40, 1.0.39, 1.0.38, 1.0.37, 1.0.36, 1.0.35, 1.0.34, 1.0.33, 1.0.32, 1.0.31, 1.0.30, 1.0.29, 1.0.28, 1.0.27, 1.0.26, 1.0.25, 1.0.24, 1.0.23
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `proc-macro2 v1.0.19`
[INFO] [stderr]     ... which satisfies dependency `proc-macro2 = "^1.0"` (locked to 1.0.19) of package `futures-macro v0.3.21`
[INFO] [stderr]     ... which satisfies dependency `futures-macro = "=0.3.21"` (locked to 0.3.21) of package `futures-util v0.3.21`
[INFO] [stderr]     ... which satisfies dependency `futures-util = "^0.3"` (locked to 0.3.21) of package `glib v0.10.1`
[INFO] [stderr]     ... which satisfies dependency `glib = "^0.10.1"` (locked to 0.10.1) of package `ramDownloader v0.1.0 (/workspace/builds/worker-4-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `proc-macro2` which could resolve this conflict
[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.