[INFO] fetching crate itsy 0.2.0...
[INFO] testing itsy-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate itsy 0.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate itsy 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itsy 0.2.0
[INFO] finished tweaking crates.io crate itsy 0.2.0
[INFO] tweaked toml for crates.io crate itsy 0.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate itsy 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc2048faf4793a54110f61e5347c774e5c8d6a524be6d34e6fb16658e5f4808
[INFO] running `Command { std: "docker" "start" "-a" "2fc2048faf4793a54110f61e5347c774e5c8d6a524be6d34e6fb16658e5f4808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc2048faf4793a54110f61e5347c774e5c8d6a524be6d34e6fb16658e5f4808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc2048faf4793a54110f61e5347c774e5c8d6a524be6d34e6fb16658e5f4808", kill_on_drop: false }`
[INFO] [stdout] 2fc2048faf4793a54110f61e5347c774e5c8d6a524be6d34e6fb16658e5f4808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 455e7d923d9f4b9322a1458a2e2f0f1a4d84c99df2decbc3d6fff9cf0f8514f6
[INFO] running `Command { std: "docker" "start" "-a" "455e7d923d9f4b9322a1458a2e2f0f1a4d84c99df2decbc3d6fff9cf0f8514f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling itsy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Positioned`
[INFO] [stdout]   --> src/bytecode/compiler/compiler.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::frontend::{ast::{self, Bindable, Positioned, Returns}, resolver::ResolvedProgram};
[INFO] [stdout]    |                                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_intrinsic_len`
[INFO] [stdout]     --> src/bytecode/compiler/compiler.rs:1238:8
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     fn write_intrinsic_len(self: &Self, ty: &Type) {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.47s
[INFO] running `Command { std: "docker" "inspect" "455e7d923d9f4b9322a1458a2e2f0f1a4d84c99df2decbc3d6fff9cf0f8514f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455e7d923d9f4b9322a1458a2e2f0f1a4d84c99df2decbc3d6fff9cf0f8514f6", kill_on_drop: false }`
[INFO] [stdout] 455e7d923d9f4b9322a1458a2e2f0f1a4d84c99df2decbc3d6fff9cf0f8514f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6584493677fad1b68c7e13a1c89c0553bac27f173ae3668423615fa141856ae8
[INFO] running `Command { std: "docker" "start" "-a" "6584493677fad1b68c7e13a1c89c0553bac27f173ae3668423615fa141856ae8", kill_on_drop: false }`
[INFO] [stderr]    Compiling itsy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Positioned`
[INFO] [stdout]   --> src/bytecode/compiler/compiler.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::frontend::{ast::{self, Bindable, Positioned, Returns}, resolver::ResolvedProgram};
[INFO] [stdout]    |                                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_intrinsic_len`
[INFO] [stdout]     --> src/bytecode/compiler/compiler.rs:1238:8
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     fn write_intrinsic_len(self: &Self, ty: &Type) {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Positioned`
[INFO] [stdout]   --> src/bytecode/compiler/compiler.rs:11:45
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::frontend::{ast::{self, Bindable, Positioned, Returns}, resolver::ResolvedProgram};
[INFO] [stdout]    |                                             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_intrinsic_len`
[INFO] [stdout]     --> src/bytecode/compiler/compiler.rs:1238:8
[INFO] [stdout]      |
[INFO] [stdout] 1238 |     fn write_intrinsic_len(self: &Self, ty: &Type) {
[INFO] [stdout]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.37s
[INFO] running `Command { std: "docker" "inspect" "6584493677fad1b68c7e13a1c89c0553bac27f173ae3668423615fa141856ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6584493677fad1b68c7e13a1c89c0553bac27f173ae3668423615fa141856ae8", kill_on_drop: false }`
[INFO] [stdout] 6584493677fad1b68c7e13a1c89c0553bac27f173ae3668423615fa141856ae8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a942abfdb1c0753f2914bde7871339109f01c7e5020235ca4b742394091652e6
[INFO] running `Command { std: "docker" "start" "-a" "a942abfdb1c0753f2914bde7871339109f01c7e5020235ca4b742394091652e6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `Positioned`
[INFO] [stderr]   --> src/bytecode/compiler/compiler.rs:11:45
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::frontend::{ast::{self, Bindable, Positioned, Returns}, resolver::ResolvedProgram};
[INFO] [stderr]    |                                             ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_intrinsic_len`
[INFO] [stderr]     --> src/bytecode/compiler/compiler.rs:1238:8
[INFO] [stderr]      |
[INFO] [stderr] 1238 |     fn write_intrinsic_len(self: &Self, ty: &Type) {
[INFO] [stderr]      |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `itsy` (lib) generated 2 warnings
[INFO] [stderr] warning: `itsy` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/itsy-a785d19b322200e1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test shared::test_index_twice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/playground-ef0248c1d6596345)
[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 tests/parser.rs (/opt/rustwide/target/debug/deps/parser-4bf8082c0ebee006)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test block_comment ... ok
[INFO] [stdout] test multi_line_block_comment ... ok
[INFO] [stdout] test unterminated_line_comment ... ok
[INFO] [stdout] test line_comment ... ok
[INFO] [stdout] test unterminated_empty_line_comment ... ok
[INFO] [stdout] test multi_line_block_comment_followed ... ok
[INFO] [stdout] test comments_without_whitespace ... ok
[INFO] [stdout] test comments_in_statement ... ok
[INFO] [stdout] test comments_in_expression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/util.rs (/opt/rustwide/target/debug/deps/util-205ba70daf39e947)
[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 tests/vm.rs (/opt/rustwide/target/debug/deps/vm-728c2629952e3e19)
[INFO] [stdout] 
[INFO] [stdout] running 69 tests
[INFO] [stdout] test cast_f32_i8 ... ok
[INFO] [stdout] test assign_heap_index_target ... ok
[INFO] [stdout] test assign_heap_var_target ... ok
[INFO] [stdout] test array_inference1 ... ok
[INFO] [stdout] test array_inference2 ... ok
[INFO] [stdout] test cast_i16_f64 ... ok
[INFO] [stdout] test array_literal ... ok
[INFO] [stdout] test array_subindex ... ok
[INFO] [stdout] test array_nesting ... ok
[INFO] [stdout] test branching ... ok
[INFO] [stdout] test cast_f32_f64 ... ok
[INFO] [stdout] test cast_i64_i16 ... ok
[INFO] [stdout] test cast_f64_f32 ... ok
[INFO] [stdout] test cast_i32_f32 ... ok
[INFO] [stdout] test cast_i64_i8 ... ok
[INFO] [stdout] test cast_i8_i16 ... ok
[INFO] [stdout] test cast_i64_u16 ... ok
[INFO] [stdout] test cast_f64_i16 ... ok
[INFO] [stdout] test cast_f32_u16 ... ok
[INFO] [stdout] test assign_stack_target ... ok
[INFO] [stdout] test cast_i8_i64 ... ok
[INFO] [stdout] test cast_i8_u16 ... ok
[INFO] [stdout] test cast_i64_u8 ... ok
[INFO] [stdout] test block_result ... ok
[INFO] [stdout] test cast_i8_u64 ... ok
[INFO] [stdout] test cast_u8_u16 ... ok
[INFO] [stdout] test cast_u8_u64 ... ok
[INFO] [stdout] test cast_u64_u8 ... ok
[INFO] [stdout] test for_in_equal_inclusive ... ok
[INFO] [stdout] test postfix_suffix ... ok
[INFO] [stdout] test compound_i64 ... ok
[INFO] [stdout] test compound_i8 ... ok
[INFO] [stdout] test cast_u64_u16 ... ok
[INFO] [stdout] test op_order_gt ... ok
[INFO] [stdout] test dynamic_constructor ... ok
[INFO] [stdout] test heap_compound_assign64 ... ok
[INFO] [stdout] test for_in_inference_assign ... ok
[INFO] [stdout] test compound_f64 ... ok
[INFO] [stdout] test numerics ... ok
[INFO] [stdout] test dead_code_result ... ok
[INFO] [stdout] test struct_array ... ok
[INFO] [stdout] test for_in_inference_let ... ok
[INFO] [stdout] test heap_compound_assign ... ok
[INFO] [stdout] test for_in_dec ... ok
[INFO] [stdout] test for_in_negative_inclusive ... ok
[INFO] [stdout] test string_concat ... ok
[INFO] [stdout] test unary_op ... ok
[INFO] [stdout] test for_in_none ... ok
[INFO] [stdout] test op_order_lt ... ok
[INFO] [stdout] test string_literal ... ok
[INFO] [stdout] test member_assign_primitive ... ok
[INFO] [stdout] test for_in_negative ... ok
[INFO] [stdout] test heap_return ... ok
[INFO] [stdout] test expression_eval_order ... ok
[INFO] [stdout] test string_len_compare ... ok
[INFO] [stdout] test for_in_dec_inclusive ... ok
[INFO] [stdout] test string_compare ... ok
[INFO] [stdout] test stack_value_expressions ... ok
[INFO] [stdout] test struct_nesting ... ok
[INFO] [stdout] test recursion ... ok
[INFO] [stdout] test heap_compare ... ok
[INFO] [stdout] test expression_short_circuit ... ok
[INFO] [stdout] test index_assign_primitive ... ok
[INFO] [stdout] test precedence ... ok
[INFO] [stdout] test temporary_heap_objects ... ok
[INFO] [stdout] test unused_result ... ok
[INFO] [stdout] test struct_access ... ok
[INFO] [stdout] test heap_postfix_suffix ... ok
[INFO] [stderr]    Doc-tests itsy
[INFO] [stdout] test explicit_return ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 69 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - vm_func (line 49) ... ok
[INFO] [stdout] test src/lib.rs - build (line 232) ... ok
[INFO] [stdout] test src/lib.rs - run (line 263) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a942abfdb1c0753f2914bde7871339109f01c7e5020235ca4b742394091652e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a942abfdb1c0753f2914bde7871339109f01c7e5020235ca4b742394091652e6", kill_on_drop: false }`
[INFO] [stdout] a942abfdb1c0753f2914bde7871339109f01c7e5020235ca4b742394091652e6