[INFO] cloning repository https://github.com/not-lain/up_or_down
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/not-lain/up_or_down" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-lain%2Fup_or_down", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-lain%2Fup_or_down'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d582ef1f88156d0c2321868317b7a9077e007faa
[INFO] checking not-lain/up_or_down against 52995a223f2919dd3e2e427231db90a257350ded for pr-129249-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnot-lain%2Fup_or_down" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/not-lain/up_or_down
[INFO] finished tweaking git repo https://github.com/not-lain/up_or_down
[INFO] tweaked toml for git repo https://github.com/not-lain/up_or_down written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/not-lain/up_or_down on toolchain 52995a223f2919dd3e2e427231db90a257350ded
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/not-lain/up_or_down 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" "+52995a223f2919dd3e2e427231db90a257350ded" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a
[INFO] running `Command { std: "docker" "start" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a" "/opt/rustwide/cargo-home/bin/cargo" "+52995a223f2919dd3e2e427231db90a257350ded" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling pyo3-build-config v0.28.3
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]     Checking getrandom v0.4.3
[INFO] [stderr]     Checking rand v0.10.2
[INFO] [stderr]    Compiling pyo3-ffi v0.28.3
[INFO] [stderr]    Compiling pyo3-macros-backend v0.28.3
[INFO] [stderr]    Compiling pyo3 v0.28.3
[INFO] [stderr]    Compiling pyo3-macros v0.28.3
[INFO] [stderr]     Checking up_or_down v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:59:44
[INFO] [stdout]    |
[INFO] [stdout] 59 |         fn guess(&mut self, guess: u32) -> PyResult<&'static str> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `up_or_down` (lib) due to 1 previous error
[INFO] [stdout] error: useless conversion to the same type: `PyErr`
[INFO] [stdout]   --> src/lib.rs:59:44
[INFO] [stdout]    |
[INFO] [stdout] 59 |         fn guess(&mut self, guess: u32) -> PyResult<&'static str> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `up_or_down` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a", kill_on_drop: false }`
[INFO] [stdout] 5647825ac68dc1ca7ecfe46e22a9cd58ab26bb8fb5ba646cc7e151bc8fb6749a
