[INFO] cloning repository https://github.com/tartatin/geodiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tartatin/geodiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftartatin%2Fgeodiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftartatin%2Fgeodiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2006186387d9670f228a384cacb04a5299c94992
[INFO] testing tartatin/geodiff against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftartatin%2Fgeodiff" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tartatin/geodiff
[INFO] finished tweaking git repo https://github.com/tartatin/geodiff
[INFO] tweaked toml for git repo https://github.com/tartatin/geodiff written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tartatin/geodiff 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/tartatin/geodiff 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing tartatin/geodiff against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftartatin%2Fgeodiff" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tartatin/geodiff
[INFO] finished tweaking git repo https://github.com/tartatin/geodiff
[INFO] tweaked toml for git repo https://github.com/tartatin/geodiff written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tartatin/geodiff 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/tartatin/geodiff 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instability v0.3.12
[INFO] [stderr]   Downloaded indoc v2.0.7
[INFO] [stderr]   Downloaded signal-hook-mio v0.2.5
[INFO] [stderr]   Downloaded ratatui v0.28.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 27c046b6a98c97f97405d4f71aef690e7f1be7e6960309d05cb550bd99a4f243
[INFO] running `Command { std: "docker" "start" "-a" "27c046b6a98c97f97405d4f71aef690e7f1be7e6960309d05cb550bd99a4f243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27c046b6a98c97f97405d4f71aef690e7f1be7e6960309d05cb550bd99a4f243", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27c046b6a98c97f97405d4f71aef690e7f1be7e6960309d05cb550bd99a4f243", kill_on_drop: false }`
[INFO] [stdout] 27c046b6a98c97f97405d4f71aef690e7f1be7e6960309d05cb550bd99a4f243
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] dba3e7e2e4d176fecbaca0070d2e675c790f452523f57558b4a0d53534bf9289
[INFO] running `Command { std: "docker" "start" "-a" "dba3e7e2e4d176fecbaca0070d2e675c790f452523f57558b4a0d53534bf9289", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling libc v0.2.185
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling colorchoice v1.0.5
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling anstyle-parse v1.0.0
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.13.2
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling foldhash v0.1.5
[INFO] [stderr]    Compiling instability v0.3.12
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling similar v2.7.0
[INFO] [stderr]    Compiling xxhash-rust v0.8.15
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling compact_str v0.8.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling lru v0.12.5
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.2.0
[INFO] [stderr]    Compiling memmap2 v0.9.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling unicode-truncate v1.1.0
[INFO] [stderr]    Compiling signal-hook-mio v0.2.5
[INFO] [stderr]    Compiling crossterm v0.28.1
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.6.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling clap v4.6.0
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling ratatui v0.28.1
[INFO] [stderr]    Compiling geodiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `get_lines` is never used
[INFO] [stdout]   --> src/filemap.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl FileMap {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 75 |     pub fn get_lines(&self, range: Range<usize>) -> impl Iterator<Item = &[u8]> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Error` is never constructed
[INFO] [stdout]   --> src/state.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum DiffStatus {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Error(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiffStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.88s
[INFO] running `Command { std: "docker" "inspect" "dba3e7e2e4d176fecbaca0070d2e675c790f452523f57558b4a0d53534bf9289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dba3e7e2e4d176fecbaca0070d2e675c790f452523f57558b4a0d53534bf9289", kill_on_drop: false }`
[INFO] [stdout] dba3e7e2e4d176fecbaca0070d2e675c790f452523f57558b4a0d53534bf9289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4fe68914249fda704da1d04bcafa3476613357d784c770543223f59ef5ab7a97
[INFO] running `Command { std: "docker" "start" "-a" "4fe68914249fda704da1d04bcafa3476613357d784c770543223f59ef5ab7a97", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling geodiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Error` is never constructed
[INFO] [stdout]   --> src/state.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub enum DiffStatus {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Error(String),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DiffStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "4fe68914249fda704da1d04bcafa3476613357d784c770543223f59ef5ab7a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe68914249fda704da1d04bcafa3476613357d784c770543223f59ef5ab7a97", kill_on_drop: false }`
[INFO] [stdout] 4fe68914249fda704da1d04bcafa3476613357d784c770543223f59ef5ab7a97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c5917586a804702fbfd5ee6dd73cd93466aa0a3efd6f3923d291486eef303b01
[INFO] running `Command { std: "docker" "start" "-a" "c5917586a804702fbfd5ee6dd73cd93466aa0a3efd6f3923d291486eef303b01", kill_on_drop: false }`
[INFO] [stderr] warning: variant `Error` is never constructed
[INFO] [stderr]   --> src/state.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub enum DiffStatus {
[INFO] [stderr]    |          ---------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 23 |     Error(String),
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DiffStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `geodiff` (bin "geodiff" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/bin/gen_testfiles.rs (/opt/rustwide/target/debug/deps/gen_testfiles-eef2ad73d34e49ed)
[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/geodiff-f86bfe741338e0b5)
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test differ::tests::test_normalize_merges_equal ... ok
[INFO] [stdout] test anchor::tests::test_empty_file_no_anchors ... ok
[INFO] [stdout] test anchor::tests::test_fewer_lines_than_window ... ok
[INFO] [stdout] test filemap::tests::test_crlf_lines ... ok
[INFO] [stdout] test anchor::tests::test_modulo_one_all_anchors ... ok
[INFO] [stdout] test filemap::tests::test_empty_file ... ok
[INFO] [stdout] test filemap::tests::test_empty_lines ... ok
[INFO] [stdout] test filemap::tests::test_get_lines_range ... ok
[INFO] [stdout] test anchor::tests::test_anchors_sorted ... ok
[INFO] [stdout] test anchor::tests::test_anchors_stable_around_insertion ... ok
[INFO] [stdout] test filemap::tests::test_multiple_lines ... ok
[INFO] [stdout] test filemap::tests::test_last_line_without_newline ... ok
[INFO] [stdout] test filemap::tests::test_single_line_no_newline ... ok
[INFO] [stdout] test filemap::tests::test_single_line_with_newline ... ok
[INFO] [stdout] test matcher::tests::test_block_inserted_at_start ... ok
[INFO] [stdout] test matcher::tests::test_block_deleted_in_b ... ok
[INFO] [stdout] test differ::tests::test_b_empty ... ok
[INFO] [stdout] test differ::tests::test_single_line_each ... ok
[INFO] [stdout] test differ::tests::test_insert_at_end ... ok
[INFO] [stdout] test differ::tests::test_a_empty ... ok
[INFO] [stdout] test differ::tests::test_delete_block_middle ... ok
[INFO] [stdout] test differ::tests::test_insert_at_start ... ok
[INFO] [stdout] test filemap::tests::test_random_access_consistency ... ok
[INFO] [stdout] test matcher::tests::test_block_inserted_in_b ... ok
[INFO] [stdout] test matcher::tests::test_hash_collision_takes_first ... ok
[INFO] [stdout] test differ::tests::test_insert_block_middle ... ok
[INFO] [stdout] test matcher::tests::test_identical_anchors ... ok
[INFO] [stdout] test matcher::tests::test_empty_inputs ... ok
[INFO] [stdout] test matcher::tests::test_lis_filters_crossings ... ok
[INFO] [stdout] test differ::tests::test_identical_files ... ok
[INFO] [stdout] test matcher::tests::test_large_insertion ... ok
[INFO] [stdout] test matcher::tests::test_result_sorted ... ok
[INFO] [stdout] test anchor::tests::test_different_files_few_common_anchors ... ok
[INFO] [stdout] test anchor::tests::test_identical_files_same_anchors ... ok
[INFO] [stdout] test filemap::tests::test_large_file ... ok
[INFO] [stdout] test anchor::tests::test_anchor_density_approximate ... ok
[INFO] [stdout] test differ::tests::test_patch_roundtrip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c5917586a804702fbfd5ee6dd73cd93466aa0a3efd6f3923d291486eef303b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5917586a804702fbfd5ee6dd73cd93466aa0a3efd6f3923d291486eef303b01", kill_on_drop: false }`
[INFO] [stdout] c5917586a804702fbfd5ee6dd73cd93466aa0a3efd6f3923d291486eef303b01