[INFO] fetching crate mlflow_rs 0.1.11...
[INFO] testing mlflow_rs-0.1.11 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mlflow_rs 0.1.11 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mlflow_rs 0.1.11
[INFO] finished tweaking crates.io crate mlflow_rs 0.1.11
[INFO] tweaked toml for crates.io crate mlflow_rs 0.1.11 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mlflow_rs 0.1.11 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 mlflow_rs 0.1.11 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a46433dc2fb044fd2ec2f8287c3fe4b6540ec5f5c639d22874ff18917a4e5051
[INFO] running `Command { std: "docker" "start" "-a" "a46433dc2fb044fd2ec2f8287c3fe4b6540ec5f5c639d22874ff18917a4e5051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a46433dc2fb044fd2ec2f8287c3fe4b6540ec5f5c639d22874ff18917a4e5051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46433dc2fb044fd2ec2f8287c3fe4b6540ec5f5c639d22874ff18917a4e5051", kill_on_drop: false }`
[INFO] [stdout] a46433dc2fb044fd2ec2f8287c3fe4b6540ec5f5c639d22874ff18917a4e5051
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7140af83d1b321153abed03415f923eacdb6d79eb2fb1e1fad5515d6bfd723d
[INFO] running `Command { std: "docker" "start" "-a" "c7140af83d1b321153abed03415f923eacdb6d79eb2fb1e1fad5515d6bfd723d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling openssl v0.10.63
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling mlflow_rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]    Compiling url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling chrono v0.4.34
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling ctrlc v3.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling h2 v0.3.24
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.24
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.09s
[INFO] running `Command { std: "docker" "inspect" "c7140af83d1b321153abed03415f923eacdb6d79eb2fb1e1fad5515d6bfd723d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7140af83d1b321153abed03415f923eacdb6d79eb2fb1e1fad5515d6bfd723d", kill_on_drop: false }`
[INFO] [stdout] c7140af83d1b321153abed03415f923eacdb6d79eb2fb1e1fad5515d6bfd723d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc864863e6587d0cf4357d4153f771f4fbe4412d8aa2d21ac1ca0812f510bac
[INFO] running `Command { std: "docker" "start" "-a" "4bc864863e6587d0cf4357d4153f771f4fbe4412d8aa2d21ac1ca0812f510bac", kill_on_drop: false }`
[INFO] [stderr]    Compiling mlflow_rs v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "4bc864863e6587d0cf4357d4153f771f4fbe4412d8aa2d21ac1ca0812f510bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc864863e6587d0cf4357d4153f771f4fbe4412d8aa2d21ac1ca0812f510bac", kill_on_drop: false }`
[INFO] [stdout] 4bc864863e6587d0cf4357d4153f771f4fbe4412d8aa2d21ac1ca0812f510bac
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8adce5e0675fca9f1e5e66a3c9499fe0ab5a5a61814ddf4529cc8233950aa45a
[INFO] running `Command { std: "docker" "start" "-a" "8adce5e0675fca9f1e5e66a3c9499fe0ab5a5a61814ddf4529cc8233950aa45a", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mlflow_rs-5a7bc80e94bf276c)
[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] [stderr]      Running unittests src/bin/example.rs (/opt/rustwide/target/debug/deps/example-c45cd705a23e9241)
[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] [stderr]    Doc-tests mlflow_rs
[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" "8adce5e0675fca9f1e5e66a3c9499fe0ab5a5a61814ddf4529cc8233950aa45a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8adce5e0675fca9f1e5e66a3c9499fe0ab5a5a61814ddf4529cc8233950aa45a", kill_on_drop: false }`
[INFO] [stdout] 8adce5e0675fca9f1e5e66a3c9499fe0ab5a5a61814ddf4529cc8233950aa45a