[INFO] fetching crate flatr 0.1.0...
[INFO] testing flatr-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate flatr 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate flatr 0.1.0
[INFO] finished tweaking crates.io crate flatr 0.1.0
[INFO] tweaked toml for crates.io crate flatr 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flatr 0.1.0 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 crates.io crate flatr 0.1.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8afa2fc345025c3d3533739831e860f4fd96217a57192e74256f9772691b9ac6
[INFO] running `Command { std: "docker" "start" "-a" "8afa2fc345025c3d3533739831e860f4fd96217a57192e74256f9772691b9ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8afa2fc345025c3d3533739831e860f4fd96217a57192e74256f9772691b9ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afa2fc345025c3d3533739831e860f4fd96217a57192e74256f9772691b9ac6", kill_on_drop: false }`
[INFO] [stdout] 8afa2fc345025c3d3533739831e860f4fd96217a57192e74256f9772691b9ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1dc6052d2c09baa7466599a43762c000470a7c7b5e097979c8feaa00637a178c
[INFO] running `Command { std: "docker" "start" "-a" "1dc6052d2c09baa7466599a43762c000470a7c7b5e097979c8feaa00637a178c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.19
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling clap_lex v0.5.1
[INFO] [stderr]    Compiling hashbrown v0.14.1
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling clap_builder v4.4.6
[INFO] [stderr]    Compiling vte v0.11.1
[INFO] [stderr]    Compiling indexmap v2.0.2
[INFO] [stderr]    Compiling strip-ansi-escapes v0.2.0
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling colored v2.0.4
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]    Compiling clap v4.4.6
[INFO] [stderr]    Compiling flatr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.65s
[INFO] running `Command { std: "docker" "inspect" "1dc6052d2c09baa7466599a43762c000470a7c7b5e097979c8feaa00637a178c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc6052d2c09baa7466599a43762c000470a7c7b5e097979c8feaa00637a178c", kill_on_drop: false }`
[INFO] [stdout] 1dc6052d2c09baa7466599a43762c000470a7c7b5e097979c8feaa00637a178c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7a17f2c6a850155b23fd2df75c6019f14154232e650a4d6d2a488c1793e63fd9
[INFO] running `Command { std: "docker" "start" "-a" "7a17f2c6a850155b23fd2df75c6019f14154232e650a4d6d2a488c1793e63fd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling flatr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "7a17f2c6a850155b23fd2df75c6019f14154232e650a4d6d2a488c1793e63fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a17f2c6a850155b23fd2df75c6019f14154232e650a4d6d2a488c1793e63fd9", kill_on_drop: false }`
[INFO] [stdout] 7a17f2c6a850155b23fd2df75c6019f14154232e650a4d6d2a488c1793e63fd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c780ce70e81296c8dec7409b1ee4e2c49fcc1742b8c50279d423f65e567b58e7
[INFO] running `Command { std: "docker" "start" "-a" "c780ce70e81296c8dec7409b1ee4e2c49fcc1742b8c50279d423f65e567b58e7", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flatr-494e1190e8542881)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_flatten_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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/flatr-35ff709b94f6435c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flatr
[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 1 test
[INFO] [stdout] test src/lib.rs - flatten_json (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c780ce70e81296c8dec7409b1ee4e2c49fcc1742b8c50279d423f65e567b58e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c780ce70e81296c8dec7409b1ee4e2c49fcc1742b8c50279d423f65e567b58e7", kill_on_drop: false }`
[INFO] [stdout] c780ce70e81296c8dec7409b1ee4e2c49fcc1742b8c50279d423f65e567b58e7