[INFO] fetching crate matrix-sdk-common 0.6.0...
[INFO] checking matrix-sdk-common-0.6.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate matrix-sdk-common 0.6.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate matrix-sdk-common 0.6.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrix-sdk-common 0.6.0
[INFO] finished tweaking crates.io crate matrix-sdk-common 0.6.0
[INFO] tweaked toml for crates.io crate matrix-sdk-common 0.6.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 109 packages
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.2.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding matrix-sdk-test v0.6.0 (latest: v0.7.0)
[INFO] [stderr]       Adding matrix-sdk-test-macros v0.3.0 (latest: v0.7.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding parking_lot v0.11.2 (latest: v0.12.1)
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (latest: v0.9.9)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding ruma v0.7.4 (latest: v0.9.4)
[INFO] [stderr]       Adding ruma-client-api v0.15.3 (latest: v0.17.4)
[INFO] [stderr]       Adding ruma-common v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding ruma-macros v0.10.5 (latest: v0.12.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding toml v0.5.11 (latest: v0.8.12)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assign v1.1.1
[INFO] [stderr]   Downloaded js_option v0.1.1
[INFO] [stderr]   Downloaded js_int v0.2.2
[INFO] [stderr]   Downloaded ruma-identifiers-validation v0.9.3
[INFO] [stderr]   Downloaded matrix-sdk-test v0.6.0
[INFO] [stderr]   Downloaded ruma-client-api v0.15.3
[INFO] [stderr]   Downloaded ruma-macros v0.10.5
[INFO] [stderr]   Downloaded ruma-common v0.10.5
[INFO] [stderr]   Downloaded ruma v0.7.4
[INFO] [stderr]   Downloaded matrix-sdk-test-macros v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b62d0599a4a1b0717751286cff0313bbeebb218d13fcaced22351d8ff4c4fb0e
[INFO] running `Command { std: "docker" "start" "-a" "b62d0599a4a1b0717751286cff0313bbeebb218d13fcaced22351d8ff4c4fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b62d0599a4a1b0717751286cff0313bbeebb218d13fcaced22351d8ff4c4fb0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62d0599a4a1b0717751286cff0313bbeebb218d13fcaced22351d8ff4c4fb0e", kill_on_drop: false }`
[INFO] [stdout] b62d0599a4a1b0717751286cff0313bbeebb218d13fcaced22351d8ff4c4fb0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60f9c0652e1bc60c243790a001737efd7ff786f7b512ff135ca64be13c97a8e2
[INFO] running `Command { std: "docker" "start" "-a" "60f9c0652e1bc60c243790a001737efd7ff786f7b512ff135ca64be13c97a8e2", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling js_int v0.2.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.92
[INFO] [stderr]     Checking wildmatch v2.3.3
[INFO] [stderr]     Checking assign v1.1.1
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling matrix-sdk-common v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]     Checking js_option v0.1.1
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.42
[INFO] [stderr]    Compiling matrix-sdk-test-macros v0.3.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling ruma-identifiers-validation v0.9.3
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.92
[INFO] [stderr]    Compiling ruma-macros v0.10.5
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.92
[INFO] [stderr]     Checking wasm-bindgen v0.2.92
[INFO] [stderr]     Checking js-sys v0.3.69
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.42
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.42
[INFO] [stderr]     Checking ruma-common v0.10.5
[INFO] [stderr]     Checking ruma-client-api v0.15.3
[INFO] [stderr]     Checking ruma v0.7.4
[INFO] [stderr]     Checking matrix-sdk-test v0.6.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.34s
[INFO] running `Command { std: "docker" "inspect" "60f9c0652e1bc60c243790a001737efd7ff786f7b512ff135ca64be13c97a8e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f9c0652e1bc60c243790a001737efd7ff786f7b512ff135ca64be13c97a8e2", kill_on_drop: false }`
[INFO] [stdout] 60f9c0652e1bc60c243790a001737efd7ff786f7b512ff135ca64be13c97a8e2