[INFO] cloning repository https://github.com/svevang/pipclient-tokenize
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/svevang/pipclient-tokenize" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvevang%2Fpipclient-tokenize", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvevang%2Fpipclient-tokenize'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 957e8caa463c73e6b5c808b91632beb2283d4906
[INFO] checking svevang/pipclient-tokenize against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvevang%2Fpipclient-tokenize" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/svevang/pipclient-tokenize on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/svevang/pipclient-tokenize
[INFO] finished tweaking git repo https://github.com/svevang/pipclient-tokenize
[INFO] tweaked toml for git repo https://github.com/svevang/pipclient-tokenize written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/svevang/pipclient-tokenize already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/svevang/rust-cpython.git`
[INFO] [stderr]     Updating git submodule `https://github.com/pyenv/pyenv.git`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5712d5219f032b8fc965c11a05d87589e1128b0c62b467fe12970dfbcbf31d84
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5712d5219f032b8fc965c11a05d87589e1128b0c62b467fe12970dfbcbf31d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5712d5219f032b8fc965c11a05d87589e1128b0c62b467fe12970dfbcbf31d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5712d5219f032b8fc965c11a05d87589e1128b0c62b467fe12970dfbcbf31d84", kill_on_drop: false }`
[INFO] [stdout] 5712d5219f032b8fc965c11a05d87589e1128b0c62b467fe12970dfbcbf31d84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c231a935711def67d3d4ea7a7b72c1a3a581b841150ae5df94396554ce530ee8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c231a935711def67d3d4ea7a7b72c1a3a581b841150ae5df94396554ce530ee8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling cpython v0.2.0 (https://github.com/svevang/rust-cpython.git?branch=feature/python-as-crate#3c4e7274)
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.5.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling python-sys v0.1.0 (https://github.com/svevang/rust-cpython.git?branch=feature/python-as-crate#3c4e7274)
[INFO] [stderr] error: failed to run custom build command for `python-sys v0.1.0 (https://github.com/svevang/rust-cpython.git?branch=feature/python-as-crate#3c4e7274)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/python-sys-8f7ef031fa9c7518/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Downloading Python-3.5.0.tar.xz...
[INFO] [stderr]   -> https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tar.xz
[INFO] [stderr]   error: failed to download Python-3.5.0.tar.xz
[INFO] [stderr] 
[INFO] [stderr]   BUILD FAILED (Ubuntu 20.04 using python-build 20160602)
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   python-sys: Error building python. See `cargo clean && cargo build -vv` for more info. 
[INFO] [stderr]    For more detailed help look at https://github.com/pyenv/pyenv/wiki/Common-build-problems 
[INFO] running `Command { std: "docker" "inspect" "c231a935711def67d3d4ea7a7b72c1a3a581b841150ae5df94396554ce530ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c231a935711def67d3d4ea7a7b72c1a3a581b841150ae5df94396554ce530ee8", kill_on_drop: false }`
[INFO] [stdout] c231a935711def67d3d4ea7a7b72c1a3a581b841150ae5df94396554ce530ee8