[INFO] cloning repository https://github.com/jakub-m/json-mmap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jakub-m/json-mmap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakub-m%2Fjson-mmap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakub-m%2Fjson-mmap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fea4fda65329709cb8e9c47f3f22dafb36df3f5
[INFO] testing jakub-m/json-mmap against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjakub-m%2Fjson-mmap" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jakub-m/json-mmap
[INFO] finished tweaking git repo https://github.com/jakub-m/json-mmap
[INFO] tweaked toml for git repo https://github.com/jakub-m/json-mmap written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jakub-m/json-mmap 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] crate git repo https://github.com/jakub-m/json-mmap 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-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5fdd035595b746443f3b54c24114d7cc648dee7af8e5bbefa705765963aadf75
[INFO] running `Command { std: "docker" "start" "-a" "5fdd035595b746443f3b54c24114d7cc648dee7af8e5bbefa705765963aadf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fdd035595b746443f3b54c24114d7cc648dee7af8e5bbefa705765963aadf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fdd035595b746443f3b54c24114d7cc648dee7af8e5bbefa705765963aadf75", kill_on_drop: false }`
[INFO] [stdout] 5fdd035595b746443f3b54c24114d7cc648dee7af8e5bbefa705765963aadf75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6715a46ca6763e21b337d58337c137133860b3e2b0b991465ca669acae0aaf5c
[INFO] running `Command { std: "docker" "start" "-a" "6715a46ca6763e21b337d58337c137133860b3e2b0b991465ca669acae0aaf5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling clap_builder v4.5.40
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling clap v4.5.40
[INFO] [stderr]    Compiling mmjson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `Offset` is never used
[INFO] [stdout]    --> src/deser/mod.rs:569:6
[INFO] [stdout]     |
[INFO] [stdout] 569 | type Offset = u32;
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ListLen` is never used
[INFO] [stdout]    --> src/deser/mod.rs:570:6
[INFO] [stdout]     |
[INFO] [stdout] 570 | type ListLen = u32;
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRef` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 574 | struct StringRef(u32);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefBlock` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:579:8
[INFO] [stdout]     |
[INFO] [stdout] 579 | struct StringRefBlock {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefCollector` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:591:8
[INFO] [stdout]     |
[INFO] [stdout] 591 | struct StringRefCollector {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.31s
[INFO] running `Command { std: "docker" "inspect" "6715a46ca6763e21b337d58337c137133860b3e2b0b991465ca669acae0aaf5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6715a46ca6763e21b337d58337c137133860b3e2b0b991465ca669acae0aaf5c", kill_on_drop: false }`
[INFO] [stdout] 6715a46ca6763e21b337d58337c137133860b3e2b0b991465ca669acae0aaf5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e6470eda149d53b67e835d1e18f08d232bbb75d6dc0c3bf896061509d5965734
[INFO] running `Command { std: "docker" "start" "-a" "e6470eda149d53b67e835d1e18f08d232bbb75d6dc0c3bf896061509d5965734", kill_on_drop: false }`
[INFO] [stdout] warning: type alias `Offset` is never used
[INFO] [stdout]    --> src/deser/mod.rs:569:6
[INFO] [stdout]     |
[INFO] [stdout] 569 | type Offset = u32;
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ListLen` is never used
[INFO] [stdout]    --> src/deser/mod.rs:570:6
[INFO] [stdout]     |
[INFO] [stdout] 570 | type ListLen = u32;
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRef` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 574 | struct StringRef(u32);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefBlock` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:579:8
[INFO] [stdout]     |
[INFO] [stdout] 579 | struct StringRefBlock {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefCollector` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:591:8
[INFO] [stdout]     |
[INFO] [stdout] 591 | struct StringRefCollector {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mmjson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `Offset` is never used
[INFO] [stdout]    --> src/deser/mod.rs:569:6
[INFO] [stdout]     |
[INFO] [stdout] 569 | type Offset = u32;
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ListLen` is never used
[INFO] [stdout]    --> src/deser/mod.rs:570:6
[INFO] [stdout]     |
[INFO] [stdout] 570 | type ListLen = u32;
[INFO] [stdout]     |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRef` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:574:8
[INFO] [stdout]     |
[INFO] [stdout] 574 | struct StringRef(u32);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefBlock` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:579:8
[INFO] [stdout]     |
[INFO] [stdout] 579 | struct StringRefBlock {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StringRefCollector` is never constructed
[INFO] [stdout]    --> src/deser/mod.rs:591:8
[INFO] [stdout]     |
[INFO] [stdout] 591 | struct StringRefCollector {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "e6470eda149d53b67e835d1e18f08d232bbb75d6dc0c3bf896061509d5965734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6470eda149d53b67e835d1e18f08d232bbb75d6dc0c3bf896061509d5965734", kill_on_drop: false }`
[INFO] [stdout] e6470eda149d53b67e835d1e18f08d232bbb75d6dc0c3bf896061509d5965734
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f650e12df45d07478426648888979a75ff7b071cc67f2e58b63d29ba9e069aa1
[INFO] running `Command { std: "docker" "start" "-a" "f650e12df45d07478426648888979a75ff7b071cc67f2e58b63d29ba9e069aa1", kill_on_drop: false }`
[INFO] [stderr] warning: type alias `Offset` is never used
[INFO] [stdout] 
[INFO] [stderr]    --> src/deser/mod.rs:569:6
[INFO] [stdout] running 8 tests
[INFO] [stderr]     |
[INFO] [stdout] test deser::tests::test_deser_empty_string ... ok
[INFO] [stderr] 569 | type Offset = u32;
[INFO] [stdout] test deser::tests::test_deser_list ... ok
[INFO] [stderr]     |      ^^^^^^
[INFO] [stdout] test deser::tests::test_deser_string ... ok
[INFO] [stderr]     |
[INFO] [stdout] test deser::tests::test_deser_i16 ... ok
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] test deser::tests::test_deser_i32 ... ok
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `ListLen` is never used
[INFO] [stderr]    --> src/deser/mod.rs:570:6
[INFO] [stderr]     |
[INFO] [stderr] 570 | type ListLen = u32;
[INFO] [stderr]     |      ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StringRef` is never constructed
[INFO] [stderr]    --> src/deser/mod.rs:574:8
[INFO] [stderr]     |
[INFO] [stderr] 574 | struct StringRef(u32);
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StringRefBlock` is never constructed
[INFO] [stderr]    --> src/deser/mod.rs:579:8
[INFO] [stderr]     |
[INFO] [stderr] 579 | struct StringRefBlock {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `StringRefCollector` is never constructed
[INFO] [stderr]    --> src/deser/mod.rs:591:8
[INFO] [stderr]     |
[INFO] [stderr] 591 | struct StringRefCollector {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mmjson` (lib) generated 5 warnings
[INFO] [stderr] warning: `mmjson` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mmjson-04f64747ecc83333)
[INFO] [stdout] test deser::tests::test_deser_null ... ok
[INFO] [stderr]      Running unittests src/bin/mmjson-dump.rs (/opt/rustwide/target/debug/deps/mmjson_dump-f94f79ad9d424a06)
[INFO] [stdout] test deser::tests::test_deser_i8 ... ok
[INFO] [stdout] test deser::tests::test_deser_map ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/mmjson-inspect.rs (/opt/rustwide/target/debug/deps/mmjson_inspect-c7fd521a9d94ad46)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mmjson
[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] [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] [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" "f650e12df45d07478426648888979a75ff7b071cc67f2e58b63d29ba9e069aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f650e12df45d07478426648888979a75ff7b071cc67f2e58b63d29ba9e069aa1", kill_on_drop: false }`
[INFO] [stdout] f650e12df45d07478426648888979a75ff7b071cc67f2e58b63d29ba9e069aa1