[INFO] fetching crate ucg 0.7.2...
[INFO] testing ucg-0.7.2 against 1.75.0 for beta-1.76-1
[INFO] extracting crate ucg 0.7.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate ucg 0.7.2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ucg 0.7.2
[INFO] finished tweaking crates.io crate ucg 0.7.2
[INFO] tweaked toml for crates.io crate ucg 0.7.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate ucg 0.7.2 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v4.1.0
[INFO] [stderr]   Downloaded textwrap v0.8.0
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded clap v2.26.2
[INFO] [stderr]   Downloaded log v0.4.7
[INFO] [stderr]   Downloaded simple-error v0.1.12
[INFO] [stderr]   Downloaded abortable_parser v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e17c99195ccc76b054cde5a0c0f04521aafeecd4afbd330c82afdc565e25e203
[INFO] running `Command { std: "docker" "start" "-a" "e17c99195ccc76b054cde5a0c0f04521aafeecd4afbd330c82afdc565e25e203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e17c99195ccc76b054cde5a0c0f04521aafeecd4afbd330c82afdc565e25e203", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e17c99195ccc76b054cde5a0c0f04521aafeecd4afbd330c82afdc565e25e203", kill_on_drop: false }`
[INFO] [stdout] e17c99195ccc76b054cde5a0c0f04521aafeecd4afbd330c82afdc565e25e203
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e39e2049420f60681e16d5fb480fed9ea2dc7f84eba16996d08eecdf961fb8de
[INFO] running `Command { std: "docker" "start" "-a" "e39e2049420f60681e16d5fb480fed9ea2dc7f84eba16996d08eecdf961fb8de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling simple-error v0.1.12
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling abortable_parser v0.2.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling ucg v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/mod.rs:125:42
[INFO] [stdout]     |
[INFO] [stdout] 125 |             environment: self.environment.clone(),
[INFO] [stdout]     |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<Stdout, Stderr>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<Stdout, Stderr>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:424:66
[INFO] [stdout]     |
[INFO] [stdout] 424 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:441:66
[INFO] [stdout]     |
[INFO] [stdout] 441 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:473:66
[INFO] [stdout]     |
[INFO] [stdout] 473 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:536:66
[INFO] [stdout]     |
[INFO] [stdout] 536 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:562:66
[INFO] [stdout]     |
[INFO] [stdout] 562 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:584:66
[INFO] [stdout]     |
[INFO] [stdout] 584 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:687:66
[INFO] [stdout]     |
[INFO] [stdout] 687 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:704:66
[INFO] [stdout]     |
[INFO] [stdout] 704 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:717:66
[INFO] [stdout]     |
[INFO] [stdout] 717 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/vm.rs:549:78
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 Self::fcall_impl(f, self.runtime.strict, &mut self.stack, env.clone(), &self.import_stack))?;
[INFO] [stdout]     |                                                                              ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.12s
[INFO] running `Command { std: "docker" "inspect" "e39e2049420f60681e16d5fb480fed9ea2dc7f84eba16996d08eecdf961fb8de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39e2049420f60681e16d5fb480fed9ea2dc7f84eba16996d08eecdf961fb8de", kill_on_drop: false }`
[INFO] [stdout] e39e2049420f60681e16d5fb480fed9ea2dc7f84eba16996d08eecdf961fb8de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea61ef099adc8f1a3f85f90ff9ef4e7093baa286d53e71862b87f814ea4c6edd
[INFO] running `Command { std: "docker" "start" "-a" "ea61ef099adc8f1a3f85f90ff9ef4e7093baa286d53e71862b87f814ea4c6edd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/mod.rs:125:42
[INFO] [stdout]     |
[INFO] [stdout] 125 |             environment: self.environment.clone(),
[INFO] [stdout]     |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<Stdout, Stderr>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<Stdout, Stderr>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:424:66
[INFO] [stdout]     |
[INFO] [stdout] 424 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:441:66
[INFO] [stdout]     |
[INFO] [stdout] 441 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:473:66
[INFO] [stdout]     |
[INFO] [stdout] 473 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:536:66
[INFO] [stdout]     |
[INFO] [stdout] 536 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:562:66
[INFO] [stdout]     |
[INFO] [stdout] 562 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:584:66
[INFO] [stdout]     |
[INFO] [stdout] 584 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:687:66
[INFO] [stdout]     |
[INFO] [stdout] 687 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:704:66
[INFO] [stdout]     |
[INFO] [stdout] 704 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/runtime.rs:717:66
[INFO] [stdout]     |
[INFO] [stdout] 717 |                         VM::fcall_impl(f, self.strict, stack, env.clone(), import_stack))?;
[INFO] [stdout]     |                                                                  ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/build/opcode/vm.rs:549:78
[INFO] [stdout]     |
[INFO] [stdout] 549 |                 Self::fcall_impl(f, self.runtime.strict, &mut self.stack, env.clone(), &self.import_stack))?;
[INFO] [stdout]     |                                                                              ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `RefCell<Environment<O, E>>` does not implement `Clone`, so calling `clone` on `&RefCell<Environment<O, E>>` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ucg v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/tuple_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]   --> src/build/compile_test.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |     assert_build(include_str!("../../integration_tests/tuple_test.ucg"));
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/list_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]   --> src/build/compile_test.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     assert_build(include_str!("../../integration_tests/list_test.ucg"));
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/comparisons_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]   --> src/build/compile_test.rs:93:18
[INFO] [stdout]    |
[INFO] [stdout] 93 |     assert_build(include_str!("../../integration_tests/comparisons_test.ucg"));
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/func_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]   --> src/build/compile_test.rs:98:18
[INFO] [stdout]    |
[INFO] [stdout] 98 |     assert_build(include_str!("../../integration_tests/func_test.ucg"));
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/modules_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:103:18
[INFO] [stdout]     |
[INFO] [stdout] 103 |     assert_build(include_str!("../../integration_tests/modules_test.ucg"));
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/selectors_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:108:18
[INFO] [stdout]     |
[INFO] [stdout] 108 |     assert_build(include_str!("../../integration_tests/selectors_test.ucg"));
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/empty_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:113:18
[INFO] [stdout]     |
[INFO] [stdout] 113 |     assert_build(include_str!("../../integration_tests/empty_test.ucg"));
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/select_expressions_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:118:18
[INFO] [stdout]     |
[INFO] [stdout] 118 |       assert_build(include_str!(
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 119 | |         "../../integration_tests/select_expressions_test.ucg"
[INFO] [stdout] 120 | |     ));
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/operator_precedence_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout] 125 |       assert_build(include_str!(
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 126 | |         "../../integration_tests/operator_precedence_test.ucg"
[INFO] [stdout] 127 | |     ));
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/functional_processing_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |       assert_build(include_str!(
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 133 | |         "../../integration_tests/functional_processing_test.ucg"
[INFO] [stdout] 134 | |     ));
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/concatenation_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:139:18
[INFO] [stdout]     |
[INFO] [stdout] 139 |       assert_build(include_str!(
[INFO] [stdout]     |  __________________^
[INFO] [stdout] 140 | |         "../../integration_tests/concatenation_test.ucg"
[INFO] [stdout] 141 | |     ));
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/format_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:146:18
[INFO] [stdout]     |
[INFO] [stdout] 146 |     assert_build(include_str!("../../integration_tests/format_test.ucg"));
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/build/../../integration_tests/types_test.ucg: No such file or directory (os error 2)
[INFO] [stdout]    --> src/build/compile_test.rs:151:18
[INFO] [stdout]     |
[INFO] [stdout] 151 |     assert_build(include_str!("../../integration_tests/types_test.ucg"));
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ucg` (lib test) due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "ea61ef099adc8f1a3f85f90ff9ef4e7093baa286d53e71862b87f814ea4c6edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea61ef099adc8f1a3f85f90ff9ef4e7093baa286d53e71862b87f814ea4c6edd", kill_on_drop: false }`
[INFO] [stdout] ea61ef099adc8f1a3f85f90ff9ef4e7093baa286d53e71862b87f814ea4c6edd
