[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 master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsvevang%2Fpipclient-tokenize" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/svevang/pipclient-tokenize on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-9/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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d327f7ebac1f56212476ff0122358d72f8dbe02d0d838b9071d4e73a7ae744a
[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" "6d327f7ebac1f56212476ff0122358d72f8dbe02d0d838b9071d4e73a7ae744a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d327f7ebac1f56212476ff0122358d72f8dbe02d0d838b9071d4e73a7ae744a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d327f7ebac1f56212476ff0122358d72f8dbe02d0d838b9071d4e73a7ae744a", kill_on_drop: false }`
[INFO] [stdout] 6d327f7ebac1f56212476ff0122358d72f8dbe02d0d838b9071d4e73a7ae744a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ba1e13f27075a20942618b1a163acf942d8fd29778cc90f2797d34702ad325f5
[INFO] running `Command { std: "docker" "start" "-a" "ba1e13f27075a20942618b1a163acf942d8fd29778cc90f2797d34702ad325f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling regex v0.2.10
[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 unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[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-dfc73d3da850d23a/build-script-build` (exit status: 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" "ba1e13f27075a20942618b1a163acf942d8fd29778cc90f2797d34702ad325f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba1e13f27075a20942618b1a163acf942d8fd29778cc90f2797d34702ad325f5", kill_on_drop: false }`
[INFO] [stdout] ba1e13f27075a20942618b1a163acf942d8fd29778cc90f2797d34702ad325f5