[INFO] fetching crate matrix-sdk-test 0.6.0...
[INFO] checking matrix-sdk-test-0.6.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate matrix-sdk-test 0.6.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate matrix-sdk-test 0.6.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrix-sdk-test 0.6.0
[INFO] finished tweaking crates.io crate matrix-sdk-test 0.6.0
[INFO] tweaked toml for crates.io crate matrix-sdk-test 0.6.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 83 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[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-macros v0.3.0 (latest: v0.7.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assign v1.1.1
[INFO] [stderr]   Downloaded ruma-macros v0.10.5
[INFO] [stderr]   Downloaded matrix-sdk-test-macros v0.3.0
[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 ruma-client-api v0.15.3
[INFO] [stderr]   Downloaded ruma-common v0.10.5
[INFO] [stderr]   Downloaded ruma v0.7.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 427ec0133899d094e5546a04541e9e794e9c635e09e5a65970729258a7939878
[INFO] running `Command { std: "docker" "start" "-a" "427ec0133899d094e5546a04541e9e794e9c635e09e5a65970729258a7939878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "427ec0133899d094e5546a04541e9e794e9c635e09e5a65970729258a7939878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "427ec0133899d094e5546a04541e9e794e9c635e09e5a65970729258a7939878", kill_on_drop: false }`
[INFO] [stdout] 427ec0133899d094e5546a04541e9e794e9c635e09e5a65970729258a7939878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a44d4477558318bdadd5c186e2d7123b4fc3dd10fb4096e4e8e823f27cc1bb4
[INFO] running `Command { std: "docker" "start" "-a" "0a44d4477558318bdadd5c186e2d7123b4fc3dd10fb4096e4e8e823f27cc1bb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling js_int v0.2.2
[INFO] [stderr]     Checking wildmatch v2.3.3
[INFO] [stderr]     Checking assign v1.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling matrix-sdk-test-macros v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling ruma-identifiers-validation v0.9.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking js_option v0.1.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling ruma-macros v0.10.5
[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 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.45s
[INFO] running `Command { std: "docker" "inspect" "0a44d4477558318bdadd5c186e2d7123b4fc3dd10fb4096e4e8e823f27cc1bb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a44d4477558318bdadd5c186e2d7123b4fc3dd10fb4096e4e8e823f27cc1bb4", kill_on_drop: false }`
[INFO] [stdout] 0a44d4477558318bdadd5c186e2d7123b4fc3dd10fb4096e4e8e823f27cc1bb4
[INFO] checking matrix-sdk-test-0.6.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate matrix-sdk-test 0.6.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate matrix-sdk-test 0.6.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrix-sdk-test 0.6.0
[INFO] finished tweaking crates.io crate matrix-sdk-test 0.6.0
[INFO] tweaked toml for crates.io crate matrix-sdk-test 0.6.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d03432da2837c5c9efa91d897aa14d1817e935242f5e089f2b154448676db9b
[INFO] running `Command { std: "docker" "start" "-a" "8d03432da2837c5c9efa91d897aa14d1817e935242f5e089f2b154448676db9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d03432da2837c5c9efa91d897aa14d1817e935242f5e089f2b154448676db9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d03432da2837c5c9efa91d897aa14d1817e935242f5e089f2b154448676db9b", kill_on_drop: false }`
[INFO] [stdout] 8d03432da2837c5c9efa91d897aa14d1817e935242f5e089f2b154448676db9b
[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=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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 470e687d9c2b8f6b4367c2e6501e8adde226e8699e7e207dc16957ffaba8d03f
[INFO] running `Command { std: "docker" "start" "-a" "470e687d9c2b8f6b4367c2e6501e8adde226e8699e7e207dc16957ffaba8d03f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling js_int v0.2.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking wildmatch v2.3.3
[INFO] [stderr]     Checking assign v1.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling matrix-sdk-test-macros v0.3.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling ruma-identifiers-validation v0.9.3
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking js_option v0.1.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling ruma-macros v0.10.5
[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 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.30s
[INFO] running `Command { std: "docker" "inspect" "470e687d9c2b8f6b4367c2e6501e8adde226e8699e7e207dc16957ffaba8d03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470e687d9c2b8f6b4367c2e6501e8adde226e8699e7e207dc16957ffaba8d03f", kill_on_drop: false }`
[INFO] [stdout] 470e687d9c2b8f6b4367c2e6501e8adde226e8699e7e207dc16957ffaba8d03f