[INFO] cloning repository https://github.com/philippkeller/shell_doctest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philippkeller/shell_doctest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilippkeller%2Fshell_doctest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilippkeller%2Fshell_doctest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae6b64b4fb694c18dae90acabdc1bda2f4a1dd28
[INFO] checking philippkeller/shell_doctest against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilippkeller%2Fshell_doctest" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/philippkeller/shell_doctest on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/philippkeller/shell_doctest
[INFO] finished tweaking git repo https://github.com/philippkeller/shell_doctest
[INFO] tweaked toml for git repo https://github.com/philippkeller/shell_doctest written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/philippkeller/shell_doctest 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/philippkeller/rexpect`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for `tempfile`.
[INFO] [stderr]     ... required by package `rexpect v0.5.0 (https://github.com/philippkeller/rexpect#9eb61dd4)`
[INFO] [stderr]     ... which satisfies git dependency `rexpect` of package `shell_doctest v0.1.0 (/workspace/builds/worker-5-tc1/source)`
[INFO] [stderr] versions that meet the requirements `^3` are: 3.10.1, 3.10.0, 3.9.0, 3.8.1, 3.8.0, 3.7.1, 3.7.0, 3.6.0, 3.5.0, 3.4.0, 3.3.0, 3.2.0, 3.1.0, 3.0.8, 3.0.7, 3.0.6, 3.0.5, 3.0.4, 3.0.3, 3.0.2
[INFO] [stderr] 
[INFO] [stderr] all possible versions conflict with previously selected packages.
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `rexpect v0.5.0 (https://github.com/philippkeller/rexpect#9eb61dd4)`
[INFO] [stderr]     ... which satisfies git dependency `rexpect` of package `shell_doctest v0.1.0 (/workspace/builds/worker-5-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `nix v0.27.0`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.27"` of package `rexpect v0.5.0 (https://github.com/philippkeller/rexpect#9eb61dd4)`
[INFO] [stderr]     ... which satisfies git dependency `rexpect` of package `shell_doctest v0.1.0 (/workspace/builds/worker-5-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr]   previously selected package `libc v0.2.147`
[INFO] [stderr]     ... which satisfies dependency `libc = "^0.2.147"` of package `nix v0.27.0`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.27"` of package `rexpect v0.5.0 (https://github.com/philippkeller/rexpect#9eb61dd4)`
[INFO] [stderr]     ... which satisfies git dependency `rexpect` of package `shell_doctest v0.1.0 (/workspace/builds/worker-5-tc1/source)`
[INFO] [stderr] 
[INFO] [stderr] failed to select a version for `tempfile` 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.