[INFO] fetching crate rcs_backend 0.2.1...
[INFO] testing rcs_backend-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate rcs_backend 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rcs_backend 0.2.1
[INFO] finished tweaking crates.io crate rcs_backend 0.2.1
[INFO] tweaked toml for crates.io crate rcs_backend 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rcs_backend 0.2.1 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 rcs_backend 0.2.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] 593f4c69951ae6feff6a09842b217c1e4bc4e160a7dc0e702f720d335213b3bd
[INFO] running `Command { std: "docker" "start" "-a" "593f4c69951ae6feff6a09842b217c1e4bc4e160a7dc0e702f720d335213b3bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "593f4c69951ae6feff6a09842b217c1e4bc4e160a7dc0e702f720d335213b3bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "593f4c69951ae6feff6a09842b217c1e4bc4e160a7dc0e702f720d335213b3bd", kill_on_drop: false }`
[INFO] [stdout] 593f4c69951ae6feff6a09842b217c1e4bc4e160a7dc0e702f720d335213b3bd
[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] a2a7ae16c23cb26f32fb832489cebad75a401942527138ee58fb402af697028d
[INFO] running `Command { std: "docker" "start" "-a" "a2a7ae16c23cb26f32fb832489cebad75a401942527138ee58fb402af697028d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling tracing v0.1.30
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling cookie v0.16.0
[INFO] [stderr]    Compiling pem v1.0.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling tar v0.4.38
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling unidecode v0.3.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling pin-project v1.0.10
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling tungstenite v0.16.0
[INFO] [stderr]    Compiling simple_asn1 v0.6.1
[INFO] [stderr]    Compiling pin-project v0.4.29
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling futures_codec v0.4.1
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tokio-tungstenite v0.16.1
[INFO] [stderr]    Compiling backoff v0.4.0
[INFO] [stderr]    Compiling async-tungstenite v0.16.1
[INFO] [stderr]    Compiling h2 v0.3.11
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling jsonwebtoken v8.0.1
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]    Compiling hyperlocal v0.8.0
[INFO] [stderr]    Compiling hyper-tungstenite v0.5.0
[INFO] [stderr]    Compiling docker-api v0.8.0
[INFO] [stderr]    Compiling rcs_backend v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "a2a7ae16c23cb26f32fb832489cebad75a401942527138ee58fb402af697028d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2a7ae16c23cb26f32fb832489cebad75a401942527138ee58fb402af697028d", kill_on_drop: false }`
[INFO] [stdout] a2a7ae16c23cb26f32fb832489cebad75a401942527138ee58fb402af697028d
[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] dc589d885b36315901da0573125d76125aa0cbdfaa563404b2014cd97a87ec8f
[INFO] running `Command { std: "docker" "start" "-a" "dc589d885b36315901da0573125d76125aa0cbdfaa563404b2014cd97a87ec8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rcs_backend v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `Command { std: "docker" "inspect" "dc589d885b36315901da0573125d76125aa0cbdfaa563404b2014cd97a87ec8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc589d885b36315901da0573125d76125aa0cbdfaa563404b2014cd97a87ec8f", kill_on_drop: false }`
[INFO] [stdout] dc589d885b36315901da0573125d76125aa0cbdfaa563404b2014cd97a87ec8f
[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] d3c6b991eb76c18df013ad44eb564b633b1d49435ba4b11b92c1e07b086440e4
[INFO] running `Command { std: "docker" "start" "-a" "d3c6b991eb76c18df013ad44eb564b633b1d49435ba4b11b92c1e07b086440e4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests src/lib/lib.rs (/opt/rustwide/target/debug/deps/rcs_backend-b12ce5b4ce97a5b9)
[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/main.rs (/opt/rustwide/target/debug/deps/rcs_backend-0053d7cc5a045700)
[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 rcs_backend
[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" "d3c6b991eb76c18df013ad44eb564b633b1d49435ba4b11b92c1e07b086440e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3c6b991eb76c18df013ad44eb564b633b1d49435ba4b11b92c1e07b086440e4", kill_on_drop: false }`
[INFO] [stdout] d3c6b991eb76c18df013ad44eb564b633b1d49435ba4b11b92c1e07b086440e4