[INFO] fetching crate flat-rs 1.0.20-alpha...
[INFO] testing flat-rs-1.0.20-alpha against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flat-rs 1.0.20-alpha into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate flat-rs 1.0.20-alpha
[INFO] finished tweaking crates.io crate flat-rs 1.0.20-alpha
[INFO] tweaked toml for crates.io crate flat-rs 1.0.20-alpha written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flat-rs 1.0.20-alpha on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 42 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff9e10e54fc95a03c8fb32b4a9de7dbecab2cd8abe5e529250af65027a35d726
[INFO] running `Command { std: "docker" "start" "-a" "ff9e10e54fc95a03c8fb32b4a9de7dbecab2cd8abe5e529250af65027a35d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff9e10e54fc95a03c8fb32b4a9de7dbecab2cd8abe5e529250af65027a35d726", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff9e10e54fc95a03c8fb32b4a9de7dbecab2cd8abe5e529250af65027a35d726", kill_on_drop: false }`
[INFO] [stdout] ff9e10e54fc95a03c8fb32b4a9de7dbecab2cd8abe5e529250af65027a35d726
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 554b76e836478b934536757f8529906c5af7655c00f9b765d7854592bbe8c788
[INFO] running `Command { std: "docker" "start" "-a" "554b76e836478b934536757f8529906c5af7655c00f9b765d7854592bbe8c788", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling flat-rs v1.0.20-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/decode/decoder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stdout]    |                        --          ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder<'b> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "554b76e836478b934536757f8529906c5af7655c00f9b765d7854592bbe8c788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "554b76e836478b934536757f8529906c5af7655c00f9b765d7854592bbe8c788", kill_on_drop: false }`
[INFO] [stdout] 554b76e836478b934536757f8529906c5af7655c00f9b765d7854592bbe8c788
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a367f8d506405ba4d9179e2efd101d23803fa158d06fc52765d7b7a7b87ddb07
[INFO] running `Command { std: "docker" "start" "-a" "a367f8d506405ba4d9179e2efd101d23803fa158d06fc52765d7b7a7b87ddb07", kill_on_drop: false }`
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/decode/decoder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stdout]    |                        --          ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder<'b> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling proptest v1.8.0
[INFO] [stderr]    Compiling flat-rs v1.0.20-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/decode/decoder.rs:13:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stdout]    |                        --          ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'b`
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder<'b> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.47s
[INFO] running `Command { std: "docker" "inspect" "a367f8d506405ba4d9179e2efd101d23803fa158d06fc52765d7b7a7b87ddb07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a367f8d506405ba4d9179e2efd101d23803fa158d06fc52765d7b7a7b87ddb07", kill_on_drop: false }`
[INFO] [stdout] a367f8d506405ba4d9179e2efd101d23803fa158d06fc52765d7b7a7b87ddb07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 460bd136e89d79653a9ad2774943c6adff31b7f08c3890bffc51f31790c0a61d
[INFO] running `Command { std: "docker" "start" "-a" "460bd136e89d79653a9ad2774943c6adff31b7f08c3890bffc51f31790c0a61d", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/decode/decoder.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder {
[INFO] [stderr]    |                        --          ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'b`
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(bytes: &'b [u8]) -> Decoder<'b> {
[INFO] [stderr]    |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `flat-rs` (lib) generated 1 warning (run `cargo fix --lib -p flat-rs` to apply 1 suggestion)
[INFO] [stderr] warning: `flat-rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flat_rs-0663a1fd098e0e02)
[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/flat_test.rs (/opt/rustwide/target/debug/deps/flat_test-d5424a8010283881)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test encode_bool ... ok
[INFO] [stdout] test encode_u8 ... ok
[INFO] [stdout] test encode_filler ... ok
[INFO] [stdout] test encode_usize ... ok
[INFO] [stdout] test encode_char ... ok
[INFO] [stdout] test encode_big_vec_u8 ... ok
[INFO] [stdout] test encode_arr_u8 ... ok
[INFO] [stdout] test encode_boxed ... ok
[INFO] [stdout] test encode_vec_u8 ... ok
[INFO] [stdout] test encode_big_arr_u8 ... ok
[INFO] [stdout] test encode_isize ... ok
[INFO] [stderr]      Running tests/zigzag_test.rs (/opt/rustwide/target/debug/deps/zigzag_test-71089dcf1b56e0d4)
[INFO] [stdout] test encode_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test zagzig ... ok
[INFO] [stdout] test zigzag ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flat_rs
[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" "460bd136e89d79653a9ad2774943c6adff31b7f08c3890bffc51f31790c0a61d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460bd136e89d79653a9ad2774943c6adff31b7f08c3890bffc51f31790c0a61d", kill_on_drop: false }`
[INFO] [stdout] 460bd136e89d79653a9ad2774943c6adff31b7f08c3890bffc51f31790c0a61d