[INFO] fetching crate thurgood 0.2.1...
[INFO] testing thurgood-0.2.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate thurgood 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate thurgood 0.2.1
[INFO] finished tweaking crates.io crate thurgood 0.2.1
[INFO] tweaked toml for crates.io crate thurgood 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate thurgood 0.2.1 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 20 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.14.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09c4cc0a1fbe2a20c58183f2714588645adaef6c9fb60334a0a0faab41be8e64
[INFO] running `Command { std: "docker" "start" "-a" "09c4cc0a1fbe2a20c58183f2714588645adaef6c9fb60334a0a0faab41be8e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09c4cc0a1fbe2a20c58183f2714588645adaef6c9fb60334a0a0faab41be8e64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09c4cc0a1fbe2a20c58183f2714588645adaef6c9fb60334a0a0faab41be8e64", kill_on_drop: false }`
[INFO] [stdout] 09c4cc0a1fbe2a20c58183f2714588645adaef6c9fb60334a0a0faab41be8e64
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a1a0c3b32ab6d668534750d919bb7e23825215f94d425cdf8c0170d4b1529b5
[INFO] running `Command { std: "docker" "start" "-a" "5a1a0c3b32ab6d668534750d919bb7e23825215f94d425cdf8c0170d4b1529b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling thurgood v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/rc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/arc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.72s
[INFO] running `Command { std: "docker" "inspect" "5a1a0c3b32ab6d668534750d919bb7e23825215f94d425cdf8c0170d4b1529b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1a0c3b32ab6d668534750d919bb7e23825215f94d425cdf8c0170d4b1529b5", kill_on_drop: false }`
[INFO] [stdout] 5a1a0c3b32ab6d668534750d919bb7e23825215f94d425cdf8c0170d4b1529b5
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9749a46c8a037baf287f98c2c73756b569ad9036a5bb8f66f1d2c83e4d775ee9
[INFO] running `Command { std: "docker" "start" "-a" "9749a46c8a037baf287f98c2c73756b569ad9036a5bb8f66f1d2c83e4d775ee9", kill_on_drop: false }`
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/rc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thurgood v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/arc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/rc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `JsonMapExt` is never used
[INFO] [stdout]  --> src/arc/../inner/helper.rs:6:15
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub trait JsonMapExt {
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "9749a46c8a037baf287f98c2c73756b569ad9036a5bb8f66f1d2c83e4d775ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9749a46c8a037baf287f98c2c73756b569ad9036a5bb8f66f1d2c83e4d775ee9", kill_on_drop: false }`
[INFO] [stdout] 9749a46c8a037baf287f98c2c73756b569ad9036a5bb8f66f1d2c83e4d775ee9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cbb6650f83232d986794305a829abe0f754ca35c5609e276d4bc58f9bdc68660
[INFO] running `Command { std: "docker" "start" "-a" "cbb6650f83232d986794305a829abe0f754ca35c5609e276d4bc58f9bdc68660", kill_on_drop: false }`
[INFO] [stderr] warning: trait `JsonMapExt` is never used
[INFO] [stderr]  --> src/rc/../inner/helper.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub trait JsonMapExt {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `JsonMapExt` is never used
[INFO] [stderr]  --> src/arc/../inner/helper.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub trait JsonMapExt {
[INFO] [stderr]   |               ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `thurgood` (lib) generated 2 warnings
[INFO] [stderr] warning: `thurgood` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thurgood-ec36fe5afab8a785)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::array_string_hash ... ok
[INFO] [stderr]    Doc-tests thurgood
[INFO] [stdout] test tests::class_and_int ... ok
[INFO] [stdout] test tests::float_types ... ok
[INFO] [stdout] test tests::object_ref_count_1 ... ok
[INFO] [stdout] test tests::modules ... ok
[INFO] [stdout] test tests::read_extended ... ok
[INFO] [stdout] test tests::object_ref_count_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.47s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbb6650f83232d986794305a829abe0f754ca35c5609e276d4bc58f9bdc68660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb6650f83232d986794305a829abe0f754ca35c5609e276d4bc58f9bdc68660", kill_on_drop: false }`
[INFO] [stdout] cbb6650f83232d986794305a829abe0f754ca35c5609e276d4bc58f9bdc68660
