[INFO] cloning repository https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/loiclec/fuzzcheck_proc_macro2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff8a67e014df367bac56b941812ebde8622217fd
[INFO] checking loiclec/fuzzcheck_proc_macro2 against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Floiclec%2Ffuzzcheck_proc_macro2" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] finished tweaking git repo https://github.com/loiclec/fuzzcheck_proc_macro2
[INFO] tweaked toml for git repo https://github.com/loiclec/fuzzcheck_proc_macro2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/loiclec/fuzzcheck_proc_macro2 on toolchain fce0e74720d199eb7839fdb51af35ac5226da178
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/loiclec/fuzzcheck_proc_macro2 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" "+fce0e74720d199eb7839fdb51af35ac5226da178" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `fuzzcheck` dependency)
[INFO] [stderr]     Updating git repository `https://github.com/loiclec/fuzzcheck-rs`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `proc-macro2`.
[INFO] [stderr]     ... required by package `fuzzcheck_mutators_derive v0.13.0 (https://github.com/loiclec/fuzzcheck-rs#b9ffecdb)`
[INFO] [stderr]     ... which satisfies git dependency `fuzzcheck_mutators_derive` of package `fuzzcheck v0.13.0 (https://github.com/loiclec/fuzzcheck-rs#b9ffecdb)`
[INFO] [stderr]     ... which satisfies git dependency `fuzzcheck` of package `fuzzcheck_proc_macro2 v0.1.0 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^1.0.87` are: 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `proc-macro2 v1.0.36`
[INFO] [stderr]     ... which satisfies dependency `proc-macro2 = "^1.0.36"` (locked to 1.0.36) of package `fuzzcheck_proc_macro2 v0.1.0 (/workspace/builds/worker-6-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `proc-macro2` which could resolve this conflict


command failed: exit status: 101

warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
(in the `fuzzcheck` dependency)
    Updating git repository `https://github.com/loiclec/fuzzcheck-rs`
    Updating crates.io index
error: failed to select a version for `proc-macro2`.
    ... required by package `fuzzcheck_mutators_derive v0.13.0 (https://github.com/loiclec/fuzzcheck-rs#b9ffecdb)`
    ... which satisfies git dependency `fuzzcheck_mutators_derive` of package `fuzzcheck v0.13.0 (https://github.com/loiclec/fuzzcheck-rs#b9ffecdb)`
    ... which satisfies git dependency `fuzzcheck` of package `fuzzcheck_proc_macro2 v0.1.0 (/workspace/builds/worker-6-tc1/source)`
versions that meet the requirements `^1.0.87` are: 1.0.97, 1.0.96, 1.0.95, 1.0.94, 1.0.93, 1.0.92, 1.0.91, 1.0.90, 1.0.89, 1.0.88, 1.0.87

all possible versions conflict with previously selected packages.

  previously selected package `proc-macro2 v1.0.36`
    ... which satisfies dependency `proc-macro2 = "^1.0.36"` (locked to 1.0.36) of package `fuzzcheck_proc_macro2 v0.1.0 (/workspace/builds/worker-6-tc1/source)`

failed to select a version for `proc-macro2` which could resolve this conflict