[INFO] cloning repository https://github.com/jg-rp/rust-iregexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jg-rp/rust-iregexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjg-rp%2Frust-iregexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjg-rp%2Frust-iregexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 989376a98cf6ec2033ece40c8deba3bdc28748d9
[INFO] testing jg-rp/rust-iregexp against master#e9385f9eea0221ef295a188d49d16f8f5189abf1 for pr-146098
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjg-rp%2Frust-iregexp" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jg-rp/rust-iregexp
[INFO] finished tweaking git repo https://github.com/jg-rp/rust-iregexp
[INFO] tweaked toml for git repo https://github.com/jg-rp/rust-iregexp written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jg-rp/rust-iregexp on toolchain e9385f9eea0221ef295a188d49d16f8f5189abf1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jg-rp/rust-iregexp 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" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `pyo3 = "^0.25.1"` (locked to 0.25.1)
[INFO] [stderr] candidate versions found which didn't match: 0.23.4, 0.23.3, 0.22.6, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `i_regexp v0.1.4 (/workspace/builds/worker-4-tc1/source/crates/python)`
[INFO] [stderr] if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     pyo3 = { version = "0.21.0-beta.0" }


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
error: failed to select a version for the requirement `pyo3 = "^0.25.1"` (locked to 0.25.1)
candidate versions found which didn't match: 0.23.4, 0.23.3, 0.22.6, ...
location searched: crates.io index
required by package `i_regexp v0.1.4 (/workspace/builds/worker-4-tc1/source/crates/python)`
if you are looking for the prerelease package it needs to be specified explicitly
    pyo3 = { version = "0.21.0-beta.0" }