[INFO] cloning repository https://github.com/An-n-ya/python_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/An-n-ya/python_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAn-n-ya%2Fpython_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAn-n-ya%2Fpython_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7f80f9d63c28e8638d38cf33c4c5997faef7c32b
[INFO] testing An-n-ya/python_rs against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAn-n-ya%2Fpython_rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/An-n-ya/python_rs
[INFO] finished tweaking git repo https://github.com/An-n-ya/python_rs
[INFO] tweaked toml for git repo https://github.com/An-n-ya/python_rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/An-n-ya/python_rs on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/An-n-ya/python_rs 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e352bf42c783b0c3c4dba120bd5852f0bfddf75e6b25eaf815f523ce5fbc53d
[INFO] running `Command { std: "docker" "start" "-a" "6e352bf42c783b0c3c4dba120bd5852f0bfddf75e6b25eaf815f523ce5fbc53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e352bf42c783b0c3c4dba120bd5852f0bfddf75e6b25eaf815f523ce5fbc53d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e352bf42c783b0c3c4dba120bd5852f0bfddf75e6b25eaf815f523ce5fbc53d", kill_on_drop: false }`
[INFO] [stdout] 6e352bf42c783b0c3c4dba120bd5852f0bfddf75e6b25eaf815f523ce5fbc53d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 860c57b9312f77de909e1c88389de4bc4720c79f03bec7d1c00006d622e165d2
[INFO] running `Command { std: "docker" "start" "-a" "860c57b9312f77de909e1c88389de4bc4720c79f03bec7d1c00006d622e165d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.2
[INFO] [stderr]    Compiling anstyle v1.0.6
[INFO] [stderr]    Compiling strsim v0.11.0
[INFO] [stderr]    Compiling clap_lex v0.7.0
[INFO] [stderr]    Compiling dyn-hash v0.1.2
[INFO] [stderr]    Compiling dyn-eq v0.1.3
[INFO] [stderr]    Compiling chrono v0.4.32
[INFO] [stderr]    Compiling anstyle-parse v0.2.3
[INFO] [stderr]    Compiling anstream v0.6.11
[INFO] [stderr]    Compiling clap_builder v4.5.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling clap_derive v4.5.0
[INFO] [stderr]    Compiling clap v4.5.0
[INFO] [stderr]    Compiling python_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DowncastErr` is never constructed
[INFO] [stdout]   --> src/utils/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct DowncastErr {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>>;
[INFO] [stdout]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>>;
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:22:47
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>>;
[INFO] [stdout]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>>;
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:60:43
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>> {
[INFO] [stdout]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:75:47
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>> {
[INFO] [stdout]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.18s
[INFO] running `Command { std: "docker" "inspect" "860c57b9312f77de909e1c88389de4bc4720c79f03bec7d1c00006d622e165d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "860c57b9312f77de909e1c88389de4bc4720c79f03bec7d1c00006d622e165d2", kill_on_drop: false }`
[INFO] [stdout] 860c57b9312f77de909e1c88389de4bc4720c79f03bec7d1c00006d622e165d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2fcfbf6936ee4095a7bc6d5a82dd45d6a9869d1555fdd997b340c1ec81be6df
[INFO] running `Command { std: "docker" "start" "-a" "f2fcfbf6936ee4095a7bc6d5a82dd45d6a9869d1555fdd997b340c1ec81be6df", kill_on_drop: false }`
[INFO] [stderr]    Compiling python_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DowncastErr` is never constructed
[INFO] [stdout]   --> src/utils/mod.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct DowncastErr {}
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>>;
[INFO] [stdout]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>>;
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:22:47
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>>;
[INFO] [stdout]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>>;
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:60:43
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>> {
[INFO] [stdout]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/utils/mod.rs:75:47
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>> {
[INFO] [stdout]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                               |
[INFO] [stdout]    |                                               the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]    |                                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "f2fcfbf6936ee4095a7bc6d5a82dd45d6a9869d1555fdd997b340c1ec81be6df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2fcfbf6936ee4095a7bc6d5a82dd45d6a9869d1555fdd997b340c1ec81be6df", kill_on_drop: false }`
[INFO] [stdout] f2fcfbf6936ee4095a7bc6d5a82dd45d6a9869d1555fdd997b340c1ec81be6df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 522ee4c0f88885382877f62b921cd1f60ce59817d6510621a4c5a2fa11b29a51
[INFO] running `Command { std: "docker" "start" "-a" "522ee4c0f88885382877f62b921cd1f60ce59817d6510621a4c5a2fa11b29a51", kill_on_drop: false }`
[INFO] [stderr] warning: struct `DowncastErr` is never constructed
[INFO] [stderr]   --> src/utils/mod.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct DowncastErr {}
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/mod.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>>;
[INFO] [stderr]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                           |
[INFO] [stderr]    |                                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>>;
[INFO] [stderr]    |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/mod.rs:22:47
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>>;
[INFO] [stderr]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                               |
[INFO] [stderr]    |                                               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] running 2 tests
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>>;
[INFO] [stderr]    |                                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/mod.rs:60:43
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<T>> {
[INFO] [stderr]    |                                           ^^^^^            ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                           |
[INFO] [stderr]    |                                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn downcast_refcell<T: PyObjectTrait>(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]    |                                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/utils/mod.rs:75:47
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<T>> {
[INFO] [stderr]    |                                               ^^^^^            ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                               |
[INFO] [stderr]    |                                               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn downcast_refcell_mut<T: PyObjectTrait>(&self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]    |                                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `python_rs` (bin "python_rs" test) generated 5 warnings (run `cargo fix --bin "python_rs" -p python_rs --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/python_rs-4e5bf7bea8aaeea6)
[INFO] [stdout] test tests::test_input_stream ... ok
[INFO] [stdout] test tests::test_one_plus_one ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_one_plus_one stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_one_plus_one' (18) panicked at src/main.rs:120:30:
[INFO] [stdout] called `Option::unwrap()` on a `None` value
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6484956078fa - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6484956078fa - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6484956078fa - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6484956078fa - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x64849561b87a - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x64849561b87a - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x64849560c132 - std[ec419fa8110287d5]::io::default_write_fmt::<alloc[a8a7aba520129d98]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x64849560c132 - <alloc[a8a7aba520129d98]::vec::Vec<u8> as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x6484955e68ff - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6484955e68ff - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6484955ffda9 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x64849559473c - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x64849559473c - test[a8007afcd3effadc]::test_main_inner::<test[a8007afcd3effadc]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x6484955fff62 - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x6484955fff62 - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x6484955e69ea - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x6484955de359 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x6484955e76cd - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x64849561bffc - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x64849561bfc2 - core[35159d6ffb30e017]::panicking::panic
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x64849561bd19 - core[35159d6ffb30e017]::option::unwrap_failed
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/option.rs:2251:5
[INFO] [stdout]   21:     0x6484955765e8 - <core[35159d6ffb30e017]::option::Option<&alloc[a8a7aba520129d98]::rc::Rc<core[35159d6ffb30e017]::cell::RefCell<dyn python_rs[27778f42ee8f0127]::object::base_object::PyObjectTrait>>>>::unwrap
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/option.rs:1016:21
[INFO] [stdout]   22:     0x6484955765e8 - <python_rs[27778f42ee8f0127]::InputStream>::get_ref
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:120:30
[INFO] [stdout]   23:     0x648495578f0f - <python_rs[27778f42ee8f0127]::PycParser>::marshal_object
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:306:24
[INFO] [stdout]   24:     0x648495582f6d - <python_rs[27778f42ee8f0127]::object::code_object::CodeObject>::new
[INFO] [stdout]                                at /opt/rustwide/workdir/src/object/code_object.rs:105:35
[INFO] [stdout]   25:     0x648495579018 - <python_rs[27778f42ee8f0127]::PycParser>::marshal_object
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:308:33
[INFO] [stdout]   26:     0x64849557967e - <python_rs[27778f42ee8f0127]::PycParser>::new
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:203:27
[INFO] [stdout]   27:     0x64849557a36a - python_rs[27778f42ee8f0127]::tests::test_one_plus_one
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:334:22
[INFO] [stdout]   28:     0x648495575e27 - python_rs[27778f42ee8f0127]::tests::test_one_plus_one::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:332:27
[INFO] [stdout]   29:     0x64849556af16 - <python_rs[27778f42ee8f0127]::tests::test_one_plus_one::{closure#0} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   30:     0x648495587a1b - <fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   31:     0x648495587a1b - test[a8007afcd3effadc]::__rust_begin_short_backtrace::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:724:18
[INFO] [stdout]   32:     0x64849559520b - test[a8007afcd3effadc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:74
[INFO] [stdout]   33:     0x64849559520b - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   34:     0x64849559520b - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   35:     0x64849559520b - std[ec419fa8110287d5]::panicking::catch_unwind::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   36:     0x64849559520b - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   37:     0x64849559520b - test[a8007afcd3effadc]::run_test_in_process
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:27
[INFO] [stdout]   38:     0x64849559520b - test[a8007afcd3effadc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:668:43
[INFO] [stdout]   39:     0x64849558fbe4 - test[a8007afcd3effadc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:698:41
[INFO] [stdout]   40:     0x64849558fbe4 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   41:     0x648495597e12 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   42:     0x648495597e12 - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   43:     0x648495597e12 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   44:     0x648495597e12 - std[ec419fa8110287d5]::panicking::catch_unwind::<(), core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   45:     0x648495597e12 - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   46:     0x648495597e12 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   47:     0x648495597e12 - <std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   48:     0x64849560720f - <alloc[a8a7aba520129d98]::boxed::Box<dyn core[35159d6ffb30e017]::ops::function::FnOnce<(), Output = ()> + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   49:     0x64849560720f - <std[ec419fa8110287d5]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   50:     0x7d2e8c923aa4 - <unknown>
[INFO] [stdout]   51:     0x7d2e8c9b0a64 - clone
[INFO] [stdout]   52:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_one_plus_one
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin python_rs`
[INFO] running `Command { std: "docker" "inspect" "522ee4c0f88885382877f62b921cd1f60ce59817d6510621a4c5a2fa11b29a51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522ee4c0f88885382877f62b921cd1f60ce59817d6510621a4c5a2fa11b29a51", kill_on_drop: false }`
[INFO] [stdout] 522ee4c0f88885382877f62b921cd1f60ce59817d6510621a4c5a2fa11b29a51
