[INFO] cloning repository https://github.com/pieterjan-blockchain/rust_python
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pieterjan-blockchain/rust_python" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpieterjan-blockchain%2Frust_python", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpieterjan-blockchain%2Frust_python'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 781bd8b2911d036efc0dea1c7c219880136ada8d
[INFO] testing pieterjan-blockchain/rust_python against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpieterjan-blockchain%2Frust_python" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/pieterjan-blockchain/rust_python
[INFO] finished tweaking git repo https://github.com/pieterjan-blockchain/rust_python
[INFO] tweaked toml for git repo https://github.com/pieterjan-blockchain/rust_python written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/pieterjan-blockchain/rust_python on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/pieterjan-blockchain/rust_python 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f635e4f7b873c21d3674587713ae77ca98c16979975fabcbeee9770ce2a883eb
[INFO] running `Command { std: "docker" "start" "-a" "f635e4f7b873c21d3674587713ae77ca98c16979975fabcbeee9770ce2a883eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f635e4f7b873c21d3674587713ae77ca98c16979975fabcbeee9770ce2a883eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f635e4f7b873c21d3674587713ae77ca98c16979975fabcbeee9770ce2a883eb", kill_on_drop: false }`
[INFO] [stdout] f635e4f7b873c21d3674587713ae77ca98c16979975fabcbeee9770ce2a883eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0f16be77ecf9a48405662ac25015ed32d630176e09a740aa24e8b7c4f830e9e4", kill_on_drop: false }`
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[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/boxvec.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |     pub fn drain<R>(&mut self, range: R) -> Drain<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] 275 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/boxvec.rs:303:20
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<T> {
[INFO] [stdout]     |                    ^^^^^^^^^ the lifetime is elided here   -------- the same lifetime is hidden 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] 303 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> common/src/lock/thread_mutex.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn lock(&self) -> Option<ThreadMutexGuard<R, G, 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] 95 |     pub fn lock(&self) -> Option<ThreadMutexGuard<'_, R, G, T>> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/lock/thread_mutex.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn try_lock(&self) -> Result<ThreadMutexGuard<R, G, T>, TryLockThreadError> {
[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] 105 |     pub fn try_lock(&self) -> Result<ThreadMutexGuard<'_, R, G, T>, TryLockThreadError> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/boxvec.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |     pub fn drain<R>(&mut self, range: R) -> Drain<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] 275 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/boxvec.rs:303:20
[INFO] [stdout]     |
[INFO] [stdout] 303 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<T> {
[INFO] [stdout]     |                    ^^^^^^^^^ the lifetime is elided here   -------- the same lifetime is hidden 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] 303 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T> {
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> common/src/lock/thread_mutex.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn lock(&self) -> Option<ThreadMutexGuard<R, G, 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] 95 |     pub fn lock(&self) -> Option<ThreadMutexGuard<'_, R, G, T>> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> common/src/lock/thread_mutex.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn try_lock(&self) -> Result<ThreadMutexGuard<R, G, T>, TryLockThreadError> {
[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] 105 |     pub fn try_lock(&self) -> Result<ThreadMutexGuard<'_, R, G, T>, TryLockThreadError> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustpython-ast v0.1.0 (/opt/rustwide/workdir/ast)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> bytecode/src/lib.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn borrow_constant(&self) -> BorrowedConstant<Self>;
[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] 50 |     fn borrow_constant(&self) -> BorrowedConstant<'_, Self>;
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> bytecode/src/lib.rs:71:24
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn borrow_constant(&self) -> BorrowedConstant<Self> {
[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] 71 |     fn borrow_constant(&self) -> BorrowedConstant<'_, Self> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> bytecode/src/lib.rs:672:22
[INFO] [stdout]     |
[INFO] [stdout] 672 |     pub fn arg_names(&self) -> Arguments<C::Name> {
[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] 672 |     pub fn arg_names(&self) -> Arguments<'_, C::Name> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustpython-compiler-core v0.1.2 (/opt/rustwide/workdir/compiler)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> bytecode/src/lib.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn borrow_constant(&self) -> BorrowedConstant<Self>;
[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] 50 |     fn borrow_constant(&self) -> BorrowedConstant<'_, Self>;
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> bytecode/src/lib.rs:71:24
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn borrow_constant(&self) -> BorrowedConstant<Self> {
[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] 71 |     fn borrow_constant(&self) -> BorrowedConstant<'_, Self> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> bytecode/src/lib.rs:672:22
[INFO] [stdout]     |
[INFO] [stdout] 672 |     pub fn arg_names(&self) -> Arguments<C::Name> {
[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] 672 |     pub fn arg_names(&self) -> Arguments<'_, C::Name> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]    Compiling rustpython-compiler v0.1.2 (/opt/rustwide/workdir/compiler/porcelain)
[INFO] [stderr]    Compiling num_enum v0.5.4
[INFO] [stderr]    Compiling sre-engine v0.1.2
[INFO] [stderr]    Compiling rustpython-derive v0.1.2 (/opt/rustwide/workdir/derive)
[INFO] [stdout] error: Python compile error from Lib/python_builtins/_frozen_importlib.py: invalid syntax. Got unexpected token '.' at line 1 column 1
[INFO] [stdout]        ../../../Lib/importlib/_bootstrap.py
[INFO] [stdout]        ↑
[INFO] [stdout]   --> vm/src/frozen.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ext_modules!(iter, dir = "Lib/python_builtins/");
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Python compile error from Lib/core_modules/copyreg.py: invalid syntax. Got unexpected token '.' at line 1 column 1
[INFO] [stdout]        ../../../Lib/copyreg.py
[INFO] [stdout]        ↑
[INFO] [stdout]   --> vm/src/frozen.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     ext_modules!(iter, dir = "Lib/core_modules/");
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:909:5
[INFO] [stdout]     |
[INFO] [stdout] 909 |     PyDictKeyIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:910:5
[INFO] [stdout]     |
[INFO] [stdout] 910 |     PyDictReverseKeyIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:922:5
[INFO] [stdout]     |
[INFO] [stdout] 922 |     PyDictValueIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:923:5
[INFO] [stdout]     |
[INFO] [stdout] 923 |     PyDictReverseValueIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:935:5
[INFO] [stdout]     |
[INFO] [stdout] 935 |     PyDictItemIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `slots` in this scope
[INFO] [stdout]    --> vm/src/builtins/dict.rs:936:5
[INFO] [stdout]     |
[INFO] [stdout] 936 |     PyDictReverseItemIterator,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> vm/src/stdlib/io.rs:275:28
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 Some(i) => (available[..=i].to_vec()),
[INFO] [stdout]     |                            ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 275 -                 Some(i) => (available[..=i].to_vec()),
[INFO] [stdout] 275 +                 Some(i) => available[..=i].to_vec(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> vm/src/stdlib/io.rs:276:22
[INFO] [stdout]     |
[INFO] [stdout] 276 |                 _ => (available.to_vec()),
[INFO] [stdout]     |                      ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 276 -                 _ => (available.to_vec()),
[INFO] [stdout] 276 +                 _ => available.to_vec(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> vm/src/dictdatatype.rs:612:13
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut inner = &mut *self.write();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> vm/src/exceptions.rs:907:14
[INFO] [stdout]     |
[INFO] [stdout] 886 |     fn serialize<S: serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
[INFO] [stdout]     |                                        ----- has type `&SerializeException<'1>`
[INFO] [stdout] ...
[INFO] [stdout] 907 |             &self.exc.cause().as_ref().map(|e| Self::new(self.vm, e)),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^                  --------------------- argument requires that borrow lasts for `'1`
[INFO] [stdout]     |              |
[INFO] [stdout]     |              creates a temporary value which is freed while still in use
[INFO] [stdout] 908 |         )?;
[INFO] [stdout]     |           - temporary value is freed at the end of this statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0716]: temporary value dropped while borrowed
[INFO] [stdout]    --> vm/src/exceptions.rs:911:14
[INFO] [stdout]     |
[INFO] [stdout] 886 |     fn serialize<S: serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
[INFO] [stdout]     |                                        ----- has type `&SerializeException<'1>`
[INFO] [stdout] ...
[INFO] [stdout] 911 |             &self.exc.context().as_ref().map(|e| Self::new(self.vm, e)),
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^                  --------------------- argument requires that borrow lasts for `'1`
[INFO] [stdout]     |              |
[INFO] [stdout]     |              creates a temporary value which is freed while still in use
[INFO] [stdout] 912 |         )?;
[INFO] [stdout]     |           - temporary value is freed at the end of this statement
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0716.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustpython-vm` (lib) due to 10 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0f16be77ecf9a48405662ac25015ed32d630176e09a740aa24e8b7c4f830e9e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f16be77ecf9a48405662ac25015ed32d630176e09a740aa24e8b7c4f830e9e4", kill_on_drop: false }`
[INFO] [stdout] 0f16be77ecf9a48405662ac25015ed32d630176e09a740aa24e8b7c4f830e9e4
