[INFO] cloning repository https://github.com/harmya/error-correcting-codes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harmya/error-correcting-codes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmya%2Ferror-correcting-codes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmya%2Ferror-correcting-codes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a4d301373b76d288bbbe08542c962fd791cd42c4
[INFO] testing harmya/error-correcting-codes against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharmya%2Ferror-correcting-codes" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/harmya/error-correcting-codes
[INFO] finished tweaking git repo https://github.com/harmya/error-correcting-codes
[INFO] tweaked toml for git repo https://github.com/harmya/error-correcting-codes written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/harmya/error-correcting-codes 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] crate git repo https://github.com/harmya/error-correcting-codes 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" "+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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d97398e61cfbfbfc84ebb73588d9ce3b89bc746e12f23bab431a7328d1751a15
[INFO] running `Command { std: "docker" "start" "-a" "d97398e61cfbfbfc84ebb73588d9ce3b89bc746e12f23bab431a7328d1751a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d97398e61cfbfbfc84ebb73588d9ce3b89bc746e12f23bab431a7328d1751a15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d97398e61cfbfbfc84ebb73588d9ce3b89bc746e12f23bab431a7328d1751a15", kill_on_drop: false }`
[INFO] [stdout] d97398e61cfbfbfc84ebb73588d9ce3b89bc746e12f23bab431a7328d1751a15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 08ff6e5f860310f8f519fe2126027453f98a243d55a734dc1efd9a65d46d9f7f
[INFO] running `Command { std: "docker" "start" "-a" "08ff6e5f860310f8f519fe2126027453f98a243d55a734dc1efd9a65d46d9f7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling error-correcting-codes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `is_extended`
[INFO] [stdout]    --> src/correction.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn encode_hamming(encoded_string: &String, is_extended: bool) -> (bool, String) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_extended`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `corrected_string` is never read
[INFO] [stdout]    --> src/correction.rs:197:32
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut corrected_string = "".to_string();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 219 |     corrected_string = extracted_data;
[INFO] [stdout]     |     ---------------- `corrected_string` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_extended`
[INFO] [stdout]    --> src/correction.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn encode_hamming(encoded_string: &String, is_extended: bool) -> (bool, String) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_extended`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `corrected_string` is never read
[INFO] [stdout]    --> src/correction.rs:197:32
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut corrected_string = "".to_string();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 219 |     corrected_string = extracted_data;
[INFO] [stdout]     |     ---------------- `corrected_string` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.57s
[INFO] running `Command { std: "docker" "inspect" "08ff6e5f860310f8f519fe2126027453f98a243d55a734dc1efd9a65d46d9f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ff6e5f860310f8f519fe2126027453f98a243d55a734dc1efd9a65d46d9f7f", kill_on_drop: false }`
[INFO] [stdout] 08ff6e5f860310f8f519fe2126027453f98a243d55a734dc1efd9a65d46d9f7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 16c3a6c342e5f8c8fdc7cccdffcf40efa956b52e463433bd0a9e99d8619a4561
[INFO] running `Command { std: "docker" "start" "-a" "16c3a6c342e5f8c8fdc7cccdffcf40efa956b52e463433bd0a9e99d8619a4561", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-correcting-codes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `is_extended`
[INFO] [stdout]    --> src/correction.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn encode_hamming(encoded_string: &String, is_extended: bool) -> (bool, String) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_extended`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_extended`
[INFO] [stdout]    --> src/correction.rs:111:48
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn encode_hamming(encoded_string: &String, is_extended: bool) -> (bool, String) {
[INFO] [stdout]     |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_extended`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `corrected_string` is never read
[INFO] [stdout]    --> src/correction.rs:197:32
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut corrected_string = "".to_string();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 219 |     corrected_string = extracted_data;
[INFO] [stdout]     |     ---------------- `corrected_string` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `corrected_string` is never read
[INFO] [stdout]    --> src/correction.rs:197:32
[INFO] [stdout]     |
[INFO] [stdout] 197 |     let mut corrected_string = "".to_string();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 219 |     corrected_string = extracted_data;
[INFO] [stdout]     |     ---------------- `corrected_string` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "16c3a6c342e5f8c8fdc7cccdffcf40efa956b52e463433bd0a9e99d8619a4561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c3a6c342e5f8c8fdc7cccdffcf40efa956b52e463433bd0a9e99d8619a4561", kill_on_drop: false }`
[INFO] [stdout] 16c3a6c342e5f8c8fdc7cccdffcf40efa956b52e463433bd0a9e99d8619a4561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 07b2f5bc5a4716c9b87de241fd44ee677b9bf21fbc1f51f12b00e4ab6ea3e26a
[INFO] running `Command { std: "docker" "start" "-a" "07b2f5bc5a4716c9b87de241fd44ee677b9bf21fbc1f51f12b00e4ab6ea3e26a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `is_extended`
[INFO] [stdout] 
[INFO] [stderr]    --> src/correction.rs:111:48
[INFO] [stdout] running 23 tests
[INFO] [stderr]     |
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_double_bit_error ... ok
[INFO] [stderr] 111 | pub fn encode_hamming(encoded_string: &String, is_extended: bool) -> (bool, String) {
[INFO] [stdout] test correction::tests::test_decode_hamming_with_single_bit_error ... ok
[INFO] [stderr]     |                                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_extended`
[INFO] [stdout] test correction::tests::test_decode_parity_bit_no_error ... ok
[INFO] [stderr]     |
[INFO] [stdout] test correction::tests::test_decode_hamming_one ... ok
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_no_error ... ok
[INFO] [stderr] 
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_single_bit_error ... ok
[INFO] [stderr] warning: value assigned to `corrected_string` is never read
[INFO] [stdout] test correction::tests::test_decode_triple_with_two_flip ... ok
[INFO] [stderr]    --> src/correction.rs:197:32
[INFO] [stderr]     |
[INFO] [stderr] 197 |     let mut corrected_string = "".to_string();
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 219 |     corrected_string = extracted_data;
[INFO] [stderr]     |     ---------------- `corrected_string` is overwritten here before the previous value is read
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `error-correcting-codes` (bin "sender" test) generated 2 warnings (run `cargo fix --bin "sender" -p error-correcting-codes --tests` to apply 1 suggestion)
[INFO] [stderr] warning: `error-correcting-codes` (bin "receiver" test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/receiver.rs (/opt/rustwide/target/debug/deps/receiver-7dac2f2971d1790f)
[INFO] [stdout] test correction::tests::test_decode_triple_without_flip ... ok
[INFO] [stdout] test correction::tests::test_empty_string_hamming ... ok
[INFO] [stdout] test correction::tests::test_empty_string_parity ... ok
[INFO] [stdout] test correction::tests::test_decode_triple_with_one_flip ... ok
[INFO] [stdout] test correction::tests::test_decode_parity_bit_with_error ... ok
[INFO] [stdout] test correction::tests::test_encode_parity_bit_even_ones ... ok
[INFO] [stdout] test correction::tests::test_encode_parity_bit_odd_ones ... ok
[INFO] [stdout] test correction::tests::test_encode_triple ... ok
[INFO] [stdout] test correction::tests::test_large_message_triple_encoding ... ok
[INFO] [stdout] test correction::tests::test_single_bit_message ... ok
[INFO] [stdout] test correction::tests::test_encode_hamming_one ... ok
[INFO] [stdout] test correction::tests::test_large_message_hamming_encoding ... ok
[INFO] [stdout] test huffman::tests::test_huffman_complex_words ... ok
[INFO] [stdout] test huffman::tests::test_huffman_empty_decode_table ... ok
[INFO] [stdout] test huffman::tests::test_huffman_encoding_creation ... ok
[INFO] [stdout] test huffman::tests::test_huffman_save_encoding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/sender.rs (/opt/rustwide/target/debug/deps/sender-3015bd5361f2a2a0)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_double_bit_error ... ok
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_no_error ... ok
[INFO] [stdout] test correction::tests::test_decode_hamming_one ... ok
[INFO] [stdout] test correction::tests::test_decode_hamming_extended_single_bit_error ... ok
[INFO] [stdout] test correction::tests::test_decode_parity_bit_no_error ... ok
[INFO] [stdout] test correction::tests::test_decode_hamming_with_single_bit_error ... ok
[INFO] [stdout] test correction::tests::test_decode_parity_bit_with_error ... ok
[INFO] [stdout] test correction::tests::test_decode_triple_with_one_flip ... ok
[INFO] [stdout] test correction::tests::test_decode_triple_with_two_flip ... ok
[INFO] [stdout] test correction::tests::test_decode_triple_without_flip ... ok
[INFO] [stdout] test correction::tests::test_empty_string_parity ... ok
[INFO] [stdout] test correction::tests::test_encode_hamming_one ... ok
[INFO] [stdout] test correction::tests::test_empty_string_hamming ... ok
[INFO] [stdout] test correction::tests::test_encode_triple ... ok
[INFO] [stdout] test correction::tests::test_large_message_hamming_encoding ... ok
[INFO] [stdout] test correction::tests::test_encode_parity_bit_even_ones ... ok
[INFO] [stdout] test correction::tests::test_encode_parity_bit_odd_ones ... ok
[INFO] [stdout] test correction::tests::test_large_message_triple_encoding ... ok
[INFO] [stdout] test correction::tests::test_single_bit_message ... ok
[INFO] [stdout] test huffman::tests::test_huffman_complex_words ... ok
[INFO] [stdout] test huffman::tests::test_huffman_empty_decode_table ... ok
[INFO] [stdout] test huffman::tests::test_huffman_encoding_creation ... ok
[INFO] [stdout] test huffman::tests::test_huffman_save_encoding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07b2f5bc5a4716c9b87de241fd44ee677b9bf21fbc1f51f12b00e4ab6ea3e26a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b2f5bc5a4716c9b87de241fd44ee677b9bf21fbc1f51f12b00e4ab6ea3e26a", kill_on_drop: false }`
[INFO] [stdout] 07b2f5bc5a4716c9b87de241fd44ee677b9bf21fbc1f51f12b00e4ab6ea3e26a
