[INFO] fetching crate poetic 0.3.1...
[INFO] testing poetic-0.3.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate poetic 0.3.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate poetic 0.3.1
[INFO] finished tweaking crates.io crate poetic 0.3.1
[INFO] tweaked toml for crates.io crate poetic 0.3.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate poetic 0.3.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] [stderr]       Adding getrandom v0.2.17 (available: v0.4.2)
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33363e505e949b24bd321fa080fd87d6246c1cab9d766494ffdacb4d4916b007
[INFO] running `Command { std: "docker" "start" "-a" "33363e505e949b24bd321fa080fd87d6246c1cab9d766494ffdacb4d4916b007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33363e505e949b24bd321fa080fd87d6246c1cab9d766494ffdacb4d4916b007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33363e505e949b24bd321fa080fd87d6246c1cab9d766494ffdacb4d4916b007", kill_on_drop: false }`
[INFO] [stdout] 33363e505e949b24bd321fa080fd87d6246c1cab9d766494ffdacb4d4916b007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f15a35715764e36ba2d3eac42dec79cebb29492b6608a051759788667561bff6
[INFO] running `Command { std: "docker" "start" "-a" "f15a35715764e36ba2d3eac42dec79cebb29492b6608a051759788667561bff6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling split-digits v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling poetic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `JnzRemover` is never constructed
[INFO] [stdout]  --> src/optimizer/jnz_remover.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) struct JnzRemover;
[INFO] [stdout]   |                   ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `no_memory_altering_instructions` is never used
[INFO] [stdout]   --> src/optimizer/jnz_remover.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl JnzRemover {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 10 |     fn no_memory_altering_instructions(&self, instructions: &[Instruction]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "f15a35715764e36ba2d3eac42dec79cebb29492b6608a051759788667561bff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15a35715764e36ba2d3eac42dec79cebb29492b6608a051759788667561bff6", kill_on_drop: false }`
[INFO] [stdout] f15a35715764e36ba2d3eac42dec79cebb29492b6608a051759788667561bff6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a724e35f2e16e4a0ce271d58f81eb74f38321dc9a83685d32a5343b52e5a2588
[INFO] running `Command { std: "docker" "start" "-a" "a724e35f2e16e4a0ce271d58f81eb74f38321dc9a83685d32a5343b52e5a2588", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling clap v4.6.1
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling poetic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `JnzRemover` is never constructed
[INFO] [stdout]  --> src/optimizer/jnz_remover.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) struct JnzRemover;
[INFO] [stdout]   |                   ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `no_memory_altering_instructions` is never used
[INFO] [stdout]   --> src/optimizer/jnz_remover.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl JnzRemover {
[INFO] [stdout]    | --------------- method in this implementation
[INFO] [stdout] 10 |     fn no_memory_altering_instructions(&self, instructions: &[Instruction]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 26.51s
[INFO] running `Command { std: "docker" "inspect" "a724e35f2e16e4a0ce271d58f81eb74f38321dc9a83685d32a5343b52e5a2588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a724e35f2e16e4a0ce271d58f81eb74f38321dc9a83685d32a5343b52e5a2588", kill_on_drop: false }`
[INFO] [stdout] a724e35f2e16e4a0ce271d58f81eb74f38321dc9a83685d32a5343b52e5a2588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d40ef148777cee4282e52e58fe8bb3a20d4eeea59d150839d857a1ae26d4c093
[INFO] running `Command { std: "docker" "start" "-a" "d40ef148777cee4282e52e58fe8bb3a20d4eeea59d150839d857a1ae26d4c093", kill_on_drop: false }`
[INFO] [stderr] warning: struct `JnzRemover` is never constructed
[INFO] [stderr]  --> src/optimizer/jnz_remover.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub(crate) struct JnzRemover;
[INFO] [stderr]   |                   ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `no_memory_altering_instructions` is never used
[INFO] [stderr]   --> src/optimizer/jnz_remover.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr]  9 | impl JnzRemover {
[INFO] [stderr]    | --------------- method in this implementation
[INFO] [stderr] 10 |     fn no_memory_altering_instructions(&self, instructions: &[Instruction]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `poetic` (lib) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/poetic-b216aa814c436989)
[INFO] [stdout] 
[INFO] [stdout] running 82 tests
[INFO] [stdout] test interpreter::test::jump_if_zero_should_set_instruction_pointer_on_zero ... ok
[INFO] [stdout] test interpreter::test::jmp_should_set_instruction_pointer ... ok
[INFO] [stdout] test interpreter::test::jump_if_zero_should_not_set_instruction_pointer_on_non_zero_value ... ok
[INFO] [stdout] test interpreter::test::jump_not_zero_should_set_instruction_pointer_on_zero_value ... ok
[INFO] [stdout] test interpreter::test::rnd_should_set_value ... ok
[INFO] [stdout] test interpreter::test::rnd_should_set_value_with_fixed_memory ... ok
[INFO] [stdout] test interpreter::test::test_ended_after_run ... ok
[INFO] [stdout] test interpreter::test::jump_not_zero_should_not_set_instruction_pointer_on_non_zero_value ... ok
[INFO] [stdout] test interpreter::test::test_interpret_bak ... ok
[INFO] [stdout] test interpreter::test::test_interpret_bak_wrapping ... ok
[INFO] [stdout] test interpreter::test::test_interpret_dec ... ok
[INFO] [stdout] test interpreter::test::test_interpret_bak_wrapping_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_dec_wrapping ... ok
[INFO] [stdout] test interpreter::test::test_interpret_dec_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_dec_wrapping_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_bak_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_eif ... ok
[INFO] [stdout] test interpreter::test::test_interpret_end ... ok
[INFO] [stdout] test interpreter::test::test_interpret_if ... ok
[INFO] [stdout] test interpreter::test::test_interpret_in ... ok
[INFO] [stdout] test interpreter::test::test_interpret_in_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_inc ... ok
[INFO] [stdout] test interpreter::test::test_interpret_fwd ... ok
[INFO] [stdout] test interpreter::test::test_interpret_inc_wrapping_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_inc_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_fwd_fixed ... ok
[INFO] [stdout] test interpreter::test::test_interpret_out ... ok
[INFO] [stdout] test interpreter::test::test_interpret_inc_wrapping ... ok
[INFO] [stdout] test interpreter::test::test_interpret_out_different ... ok
[INFO] [stdout] test interpreter::test::test_interpret_out_is_called - should panic ... ok
[INFO] [stdout] test interpreter::test::test_interpret_out_to_string ... ok
[INFO] [stdout] test interpreter::test::test_not_ended ... ok
[INFO] [stdout] test optimizer::fwd_bak_merger::test::test_bak_merged ... ok
[INFO] [stdout] test optimizer::fwd_bak_merger::test::test_fwd_bak_merged ... ok
[INFO] [stdout] test optimizer::fwd_bak_merger::test::test_fwd_greater255_merged ... ok
[INFO] [stdout] test optimizer::fwd_bak_merger::test::test_bak_greater255_merged ... ok
[INFO] [stdout] test interpreter::test::test_interpret_if_instruction_pointer ... ok
[INFO] [stdout] test optimizer::if_eif_jmp_rewriter::test::test_if_eif_direct ... ok
[INFO] [stdout] test optimizer::if_eif_jmp_rewriter::test::test_if_eif_jmp_rewriter ... ok
[INFO] [stdout] test optimizer::inc_dec_merger::test::test_dec_greater255_merged ... ok
[INFO] [stdout] test optimizer::inc_dec_merger::test::test_dec_merged ... ok
[INFO] [stdout] test optimizer::inc_dec_merger::test::test_inc_dec_merged ... ok
[INFO] [stdout] test optimizer::inc_dec_merger::test::test_inc_greater255_merged ... ok
[INFO] [stdout] test optimizer::inc_dec_merger::test::test_inc_merged ... ok
[INFO] [stdout] test optimizer::jnz_remover::test::jnz_should_be_removed_when_no_memory_is_set ... ok
[INFO] [stdout] test optimizer::jnz_remover::test::jnz_should_not_be_removed_when_memory_is_set_by_dec ... ok
[INFO] [stdout] test optimizer::jnz_remover::test::jnz_should_not_be_removed_when_memory_is_set_by_in ... ok
[INFO] [stdout] test optimizer::jnz_remover::test::jnz_should_not_be_removed_when_memory_is_set_by_inc ... ok
[INFO] [stdout] test optimizer::fwd_bak_merger::test::test_fwd_merged ... ok
[INFO] [stdout] test optimizer::test::test_inc_dec_fwd_bak_merged ... ok
[INFO] [stdout] test optimizer::test::test_inc_dec_fwd_bak_merged_if_eif ... ok
[INFO] [stdout] test parser::test::test_instruction_bak ... ok
[INFO] [stdout] test parser::test::test_instruction_dec_needs_arg ... ok
[INFO] [stdout] test parser::test::test_instruction_dec ... ok
[INFO] [stdout] test parser::test::test_instruction_bak_needs_arg ... ok
[INFO] [stdout] test parser::test::test_instruction_end10 ... ok
[INFO] [stdout] test parser::test::test_instruction_end0 ... ok
[INFO] [stdout] test parser::test::test_instruction_fwd_needs_arg ... ok
[INFO] [stdout] test parser::test::test_instruction_if_eif ... ok
[INFO] [stdout] test parser::test::test_instruction_in ... ok
[INFO] [stdout] test parser::test::test_instruction_inc_needs_arg ... ok
[INFO] [stdout] test parser::test::test_instruction_missing_eif ... ok
[INFO] [stdout] test parser::test::test_instruction_missing_if ... ok
[INFO] [stdout] test parser::test::test_instruction_inc ... ok
[INFO] [stdout] test parser::test::test_instruction_out ... ok
[INFO] [stdout] test parser::test::test_intermediate_10_as_0 ... ok
[INFO] [stdout] test parser::test::test_instruction_fwd ... ok
[INFO] [stdout] test parser::test::test_intermediate_11_as_1_1 ... ok
[INFO] [stdout] test parser::test::test_instruction_rnd ... ok
[INFO] [stdout] test optimizer::if_eif_jmp_rewriter::test::test_if_eif_nested ... ok
[INFO] [stdout] test parser::test::test_intermediate_ignore_apostrophe ... ok
[INFO] [stdout] test parser::test::test_intermediate_28_as_2_8 ... ok
[INFO] [stdout] test optimizer::jnz_remover::test::jnz_should_not_be_removed_when_memory_is_set_by_rnd ... ok
[INFO] [stdout] test parser::test::test_intermediate_non_alpha_as_whitespace ... ok
[INFO] [stdout] test parser::test::test_parse_argument_0_as_10 ... ok
[INFO] [stdout] test parser::test::test_intermediate_len ... ok
[INFO] [stdout] test parser::test::test_parser_split_digits ... ok
[INFO] [stdout] test parser::test::test_intermediate_12345_as_1_2_3_4_5 ... ok
[INFO] [stdout] test parser::test::test_parser_transform_char ... ok
[INFO] [stdout] test test::hello_world ... ok
[INFO] [stdout] test test::hello_world_shortest_fixed_memory ... ok
[INFO] [stdout] test test::hello_world_fixed_memory ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 82 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests poetic
[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" "d40ef148777cee4282e52e58fe8bb3a20d4eeea59d150839d857a1ae26d4c093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d40ef148777cee4282e52e58fe8bb3a20d4eeea59d150839d857a1ae26d4c093", kill_on_drop: false }`
[INFO] [stdout] d40ef148777cee4282e52e58fe8bb3a20d4eeea59d150839d857a1ae26d4c093
