[INFO] fetching crate viper-py 0.2.0...
[INFO] testing viper-py-0.2.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate viper-py 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate viper-py 0.2.0
[INFO] finished tweaking crates.io crate viper-py 0.2.0
[INFO] tweaked toml for crates.io crate viper-py 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate viper-py 0.2.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate viper-py 0.2.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0
[INFO] running `Command { std: "docker" "start" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling viper-py v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `inc_start`
[INFO] [stdout]    --> src/compiler.rs:542:17
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let inc_start = builder.current_offset();
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_char` is never used
[INFO] [stdout]    --> src/lexer.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  11 | impl Lexer {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn peek_char(&self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/interpreter.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 31 |         func: fn(&[Value]) -> Result<Value, String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `inc_start`
[INFO] [stdout]    --> src/compiler.rs:542:17
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let inc_start = builder.current_offset();
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling viper-py v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `peek_char` is never used
[INFO] [stdout]    --> src/lexer.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  11 | impl Lexer {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn peek_char(&self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/interpreter.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 31 |         func: fn(&[Value]) -> Result<Value, String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `inc_start`
[INFO] [stdout]    --> src/compiler.rs:542:17
[INFO] [stdout]     |
[INFO] [stdout] 542 |             let inc_start = builder.current_offset();
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_char` is never used
[INFO] [stdout]    --> src/lexer.rs:100:8
[INFO] [stdout]     |
[INFO] [stdout]  11 | impl Lexer {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn peek_char(&self) -> Option<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]   --> src/interpreter.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stdout]    |                        --------- in this derive macro expansion
[INFO] [stdout] ...
[INFO] [stdout] 31 |         func: fn(&[Value]) -> Result<Value, String>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the address of the same function can vary between different codegen units
[INFO] [stdout]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `inc_start`
[INFO] [stderr]    --> src/compiler.rs:542:17
[INFO] [stderr]     |
[INFO] [stderr] 542 |             let inc_start = builder.current_offset();
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_start`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `peek_char` is never used
[INFO] [stderr]    --> src/lexer.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr]  11 | impl Lexer {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 100 |     fn peek_char(&self) -> Option<char> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]   --> src/interpreter.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 19 | #[derive(Debug, Clone, PartialEq)]
[INFO] [stderr]    |                        --------- in this derive macro expansion
[INFO] [stderr] ...
[INFO] [stderr] 31 |         func: fn(&[Value]) -> Result<Value, String>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the address of the same function can vary between different codegen units
[INFO] [stderr]    = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]    = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]    = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `viper-py` (lib) generated 3 warnings (run `cargo fix --lib -p viper-py` to apply 1 suggestion)
[INFO] [stderr] warning: `viper-py` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/viper-0189cc06486ea801)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test interpreter::tests::test_variables ... ok
[INFO] [stdout] test interpreter::tests::test_for_loop ... ok
[INFO] [stdout] test interpreter::tests::test_if_else ... ok
[INFO] [stdout] test vm::tests::test_arithmetic ... ok
[INFO] [stdout] test interpreter::tests::test_function ... ok
[INFO] [stdout] test interpreter::tests::test_while_loop ... ok
[INFO] [stdout] test interpreter::tests::test_arithmetic ... ok
[INFO] [stdout] test vm::tests::test_elif ... ok
[INFO] [stdout] test lexer::tests::test_function_def ... ok
[INFO] [stdout] test interpreter::tests::test_string_ops ... ok
[INFO] [stdout] test lexer::tests::test_simple_assignment ... ok
[INFO] [stdout] test interpreter::tests::test_fibonacci ... ok
[INFO] [stdout] test vm::tests::test_fibonacci ... ok
[INFO] [stdout] test vm::tests::test_break_continue ... ok
[INFO] [stdout] test vm::tests::test_for_loop ... ok
[INFO] [stdout] test vm::tests::test_string_ops ... ok
[INFO] [stdout] test vm::tests::test_variables ... ok
[INFO] [stdout] test vm::tests::test_while_loop ... ok
[INFO] [stdout] test vm::tests::test_function ... ok
[INFO] [stdout] test vm::tests::test_if_else ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/benchmark.rs (/opt/rustwide/target/debug/deps/benchmark-1e351270d3a1b137)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/viper-07a140355cc46b07)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests viper
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0", kill_on_drop: false }`
[INFO] [stdout] c7d26ea86c2f19742318b84e23b8c9c25bcfc69338ddbc4f9e6d6ce5de3a3db0
