[INFO] fetching crate rexpr 1.0.7...
[INFO] testing rexpr-1.0.7 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rexpr 1.0.7 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rexpr 1.0.7
[INFO] finished tweaking crates.io crate rexpr 1.0.7
[INFO] tweaked toml for crates.io crate rexpr 1.0.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rexpr 1.0.7 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 16 packages to latest compatible versions
[INFO] [stderr]       Adding dashmap v4.0.2 (available: v6.1.0)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 84690a4747a5222234a96728216b6f5d39b2d77737faddcfa953d4eeb78c95d9
[INFO] running `Command { std: "docker" "start" "-a" "84690a4747a5222234a96728216b6f5d39b2d77737faddcfa953d4eeb78c95d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84690a4747a5222234a96728216b6f5d39b2d77737faddcfa953d4eeb78c95d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84690a4747a5222234a96728216b6f5d39b2d77737faddcfa953d4eeb78c95d9", kill_on_drop: false }`
[INFO] [stdout] 84690a4747a5222234a96728216b6f5d39b2d77737faddcfa953d4eeb78c95d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f9d88b3a3ef1b529134961a3b6225453fc4c9572ebc7c66432b7552be568b4ad
[INFO] running `Command { std: "docker" "start" "-a" "f9d88b3a3ef1b529134961a3b6225453fc4c9572ebc7c66432b7552be568b4ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rexpr v1.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::cache::RWLockMapCache`
[INFO] [stdout]  --> src/runtime.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cache::RWLockMapCache;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RWLockMapCache` is never constructed
[INFO] [stdout]  --> src/cache.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RWLockMapCache {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `try_read` and `try_write` are never used
[INFO] [stdout]   --> src/cache.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl RWLockMapCache {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 12 |     pub fn try_read(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn try_write(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `Command { std: "docker" "inspect" "f9d88b3a3ef1b529134961a3b6225453fc4c9572ebc7c66432b7552be568b4ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d88b3a3ef1b529134961a3b6225453fc4c9572ebc7c66432b7552be568b4ad", kill_on_drop: false }`
[INFO] [stdout] f9d88b3a3ef1b529134961a3b6225453fc4c9572ebc7c66432b7552be568b4ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4487923dd4669f22fe0fe05e290882a2babc9b84f398251ef128295214ed0cbb
[INFO] running `Command { std: "docker" "start" "-a" "4487923dd4669f22fe0fe05e290882a2babc9b84f398251ef128295214ed0cbb", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::cache::RWLockMapCache`
[INFO] [stdout]  --> src/runtime.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cache::RWLockMapCache;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rexpr v1.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `RWLockMapCache` is never constructed
[INFO] [stdout]  --> src/cache.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RWLockMapCache {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `try_read` and `try_write` are never used
[INFO] [stdout]   --> src/cache.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl RWLockMapCache {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 12 |     pub fn try_read(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn try_write(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::cache::RWLockMapCache`
[INFO] [stdout]  --> src/runtime.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::cache::RWLockMapCache;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RWLockMapCache` is never constructed
[INFO] [stdout]  --> src/cache.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RWLockMapCache {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `try_read` and `try_write` are never used
[INFO] [stdout]   --> src/cache.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl RWLockMapCache {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 12 |     pub fn try_read(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub fn try_write(
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "4487923dd4669f22fe0fe05e290882a2babc9b84f398251ef128295214ed0cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4487923dd4669f22fe0fe05e290882a2babc9b84f398251ef128295214ed0cbb", kill_on_drop: false }`
[INFO] [stdout] 4487923dd4669f22fe0fe05e290882a2babc9b84f398251ef128295214ed0cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4d11e29346c1ad7d6c7b1c5e28fc1410363e9118b32ff2eba6e0a77808e8f85c
[INFO] running `Command { std: "docker" "start" "-a" "4d11e29346c1ad7d6c7b1c5e28fc1410363e9118b32ff2eba6e0a77808e8f85c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::cache::RWLockMapCache`
[INFO] [stderr]  --> src/runtime.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::cache::RWLockMapCache;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `RWLockMapCache` is never constructed
[INFO] [stderr]  --> src/cache.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct RWLockMapCache {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `try_read` and `try_write` are never used
[INFO] [stderr]   --> src/cache.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl RWLockMapCache {
[INFO] [stderr]    | ------------------- methods in this implementation
[INFO] [stderr] 12 |     pub fn try_read(
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 17 |     pub fn try_write(
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rexpr` (lib) generated 4 warnings (run `cargo fix --lib -p rexpr` to apply 1 suggestion)
[INFO] [stderr] warning: `rexpr` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rexpr-52079cc5959a59bb)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test ast::test::test_parse ... ok
[INFO] [stdout] test error::test_json_error ... ok
[INFO] [stdout] test eval::test::test_lexer ... ok
[INFO] [stdout] test eval::test::test_array_eq ... ok
[INFO] [stdout] test ast::test::test_parse_arg ... ok
[INFO] [stdout] test eval::test::test_object_eq ... ok
[INFO] [stdout] test eval::test::test_take_value ... ok
[INFO] [stdout] test eval_test::test::test_arg_node ... ok
[INFO] [stdout] test eval_test::test::test_eval_arg ... ok
[INFO] [stdout] test eval_test::test::test_string_node ... ok
[INFO] [stdout] test eval_test::test::test_gen ... ok
[INFO] [stdout] test lexer::test::test_fill ... ok
[INFO] [stdout] test lexer::test::test_fill_center ... ok
[INFO] [stdout] test lexer::test::test_fill_first ... ok
[INFO] [stdout] test lexer::test::test_fill_last ... ok
[INFO] [stdout] test eval_test::test::test_number_node ... ok
[INFO] [stdout] test parser_test::test::test_lexer ... ok
[INFO] [stdout] test eval_test::test::test_node_run ... ok
[INFO] [stdout] test lexer::test::test_fill_center_n ... ok
[INFO] [stdout] test eval_test::test::benchmark_arg_node ... ok
[INFO] [stdout] test parser_test::test::test_benchmark_parse ... ok
[INFO] [stdout] test runtime::test::test_bench ... ok
[INFO] [stdout] test parser_test::test::test_benchmark ... ok
[INFO] [stdout] test runtime::test::test_thread_race ... ok
[INFO] [stdout] test lexer::test::test_bench_lexer ... ok
[INFO] [stdout] test eval_test::test::test_mem_gc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 45.53s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rexpr
[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" "4d11e29346c1ad7d6c7b1c5e28fc1410363e9118b32ff2eba6e0a77808e8f85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d11e29346c1ad7d6c7b1c5e28fc1410363e9118b32ff2eba6e0a77808e8f85c", kill_on_drop: false }`
[INFO] [stdout] 4d11e29346c1ad7d6c7b1c5e28fc1410363e9118b32ff2eba6e0a77808e8f85c
