[INFO] fetching crate json-session 0.1.0...
[INFO] testing json-session-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate json-session 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate json-session 0.1.0
[INFO] finished tweaking crates.io crate json-session 0.1.0
[INFO] tweaked toml for crates.io crate json-session 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json-session 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 json-session 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 4c563290105c6607fdc73bb1b066bac41bb263930502cb8dfd8f587b08d3d779
[INFO] running `Command { std: "docker" "start" "-a" "4c563290105c6607fdc73bb1b066bac41bb263930502cb8dfd8f587b08d3d779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c563290105c6607fdc73bb1b066bac41bb263930502cb8dfd8f587b08d3d779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c563290105c6607fdc73bb1b066bac41bb263930502cb8dfd8f587b08d3d779", kill_on_drop: false }`
[INFO] [stdout] 4c563290105c6607fdc73bb1b066bac41bb263930502cb8dfd8f587b08d3d779
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d318b7e53ee924923c449e83105ddc324de0f16d249682c2f26dbda1d7c37b17
[INFO] running `Command { std: "docker" "start" "-a" "d318b7e53ee924923c449e83105ddc324de0f16d249682c2f26dbda1d7c37b17", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling json-session v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "d318b7e53ee924923c449e83105ddc324de0f16d249682c2f26dbda1d7c37b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d318b7e53ee924923c449e83105ddc324de0f16d249682c2f26dbda1d7c37b17", kill_on_drop: false }`
[INFO] [stdout] d318b7e53ee924923c449e83105ddc324de0f16d249682c2f26dbda1d7c37b17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ba63f55c2206e912b158423999031ce1af66d22381d111018d51d21ba3436f58
[INFO] running `Command { std: "docker" "start" "-a" "ba63f55c2206e912b158423999031ce1af66d22381d111018d51d21ba3436f58", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-session v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "ba63f55c2206e912b158423999031ce1af66d22381d111018d51d21ba3436f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba63f55c2206e912b158423999031ce1af66d22381d111018d51d21ba3436f58", kill_on_drop: false }`
[INFO] [stdout] ba63f55c2206e912b158423999031ce1af66d22381d111018d51d21ba3436f58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d3a8c03f8b700102a737582cb0aebc741473a4ac409fd09afbe2f5a126047bfc
[INFO] running `Command { std: "docker" "start" "-a" "d3a8c03f8b700102a737582cb0aebc741473a4ac409fd09afbe2f5a126047bfc", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/json_session-1f759cefe2f2c1e3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test session::test::test_doc ... ok
[INFO] [stdout] test session::test::test_basic ... ok
[INFO] [stderr]    Doc-tests json_session
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/session.rs - session::JsonSession (line 95) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d3a8c03f8b700102a737582cb0aebc741473a4ac409fd09afbe2f5a126047bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a8c03f8b700102a737582cb0aebc741473a4ac409fd09afbe2f5a126047bfc", kill_on_drop: false }`
[INFO] [stdout] d3a8c03f8b700102a737582cb0aebc741473a4ac409fd09afbe2f5a126047bfc