[INFO] cloning repository https://github.com/yocurt/yogurt-py
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yocurt/yogurt-py" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyocurt%2Fyogurt-py", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyocurt%2Fyogurt-py'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56ea43817bc7741d900e8e8f2f9fce64370a5c94
[INFO] checking yocurt/yogurt-py against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyocurt%2Fyogurt-py" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yocurt/yogurt-py on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yocurt/yogurt-py
[INFO] finished tweaking git repo https://github.com/yocurt/yogurt-py
[INFO] tweaked toml for git repo https://github.com/yocurt/yogurt-py written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/yocurt/yogurt-py already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build-system
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.103
[INFO] [stderr]   Downloaded serde v1.0.103
[INFO] [stderr]   Downloaded ghost v0.1.1
[INFO] [stderr]   Downloaded paste-impl v0.1.6
[INFO] [stderr]   Downloaded indoc-impl v0.3.4
[INFO] [stderr]   Downloaded pyo3 v0.8.4
[INFO] [stderr]   Downloaded paste v0.1.6
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.4
[INFO] [stderr]   Downloaded indoc v0.3.4
[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded pyo3cls v0.8.4
[INFO] [stderr]   Downloaded argparse v0.2.2
[INFO] [stderr]   Downloaded inventory v0.1.4
[INFO] [stderr]   Downloaded inventory-impl v0.1.4
[INFO] [stderr]   Downloaded yogurt-yaml v0.2.0
[INFO] [stderr]   Downloaded unindent v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", 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] 5c020f3d3e257248f9127afb227cddbd6aac9a73f8dd323d2d8a9028b4284fad
[INFO] running `Command { std: "docker" "start" "-a" "5c020f3d3e257248f9127afb227cddbd6aac9a73f8dd323d2d8a9028b4284fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c020f3d3e257248f9127afb227cddbd6aac9a73f8dd323d2d8a9028b4284fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c020f3d3e257248f9127afb227cddbd6aac9a73f8dd323d2d8a9028b4284fad", kill_on_drop: false }`
[INFO] [stdout] 5c020f3d3e257248f9127afb227cddbd6aac9a73f8dd323d2d8a9028b4284fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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] 71e7493f6ab8d9b9929820af655f41b92363ceb025334c20adf49f1fbe03e5ee
[INFO] running `Command { std: "docker" "start" "-a" "71e7493f6ab8d9b9929820af655f41b92363ceb025334c20adf49f1fbe03e5ee", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build-system
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking yogurt-yaml v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling pyo3cls v0.8.4
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling pyo3 v0.8.4
[INFO] [stderr]     Checking yogurt-py v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `py`
[INFO] [stdout]   --> src/lib.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn string_sum(py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stdout]    |               ^^ help: if this is intentional, prefix it with an underscore: `_py`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `py`
[INFO] [stdout]   --> src/lib.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn string_sum(py: Python, m: &PyModule) -> PyResult<()> {
[INFO] [stdout]    |               ^^ help: if this is intentional, prefix it with an underscore: `_py`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `Command { std: "docker" "inspect" "71e7493f6ab8d9b9929820af655f41b92363ceb025334c20adf49f1fbe03e5ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e7493f6ab8d9b9929820af655f41b92363ceb025334c20adf49f1fbe03e5ee", kill_on_drop: false }`
[INFO] [stdout] 71e7493f6ab8d9b9929820af655f41b92363ceb025334c20adf49f1fbe03e5ee