[INFO] fetching crate matrix-sdk-base 0.6.1...
[INFO] checking matrix-sdk-base-0.6.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate matrix-sdk-base 0.6.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate matrix-sdk-base 0.6.1 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] removed /workspace/builds/worker-0-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate matrix-sdk-base 0.6.1
[INFO] finished tweaking crates.io crate matrix-sdk-base 0.6.1
[INFO] tweaked toml for crates.io crate matrix-sdk-base 0.6.1 written to /workspace/builds/worker-0-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 199 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding atomic v0.5.3 (latest: v0.6.0)
[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 block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding const-oid v0.7.1 (latest: v0.9.6)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (latest: v4.1.2)
[INFO] [stderr]       Adding der v0.5.1 (latest: v0.7.9)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding ed25519 v1.5.3 (latest: v2.2.3)
[INFO] [stderr]       Adding ed25519-dalek v1.0.1 (latest: v2.1.1)
[INFO] [stderr]       Adding env_logger v0.9.3 (latest: v0.11.3)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[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 itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding lru v0.8.1 (latest: v0.12.3)
[INFO] [stderr]       Adding matrix-sdk-common v0.6.0 (latest: v0.7.0)
[INFO] [stderr]       Adding matrix-sdk-crypto v0.6.0 (latest: v0.7.0)
[INFO] [stderr]       Adding matrix-sdk-qrcode v0.4.0 (latest: v0.7.0)
[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 pbkdf2 v0.11.0 (latest: v0.12.2)
[INFO] [stderr]       Adding pkcs7 v0.3.0 (latest: v0.4.1)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding prost v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding prost-derive v0.11.9 (latest: v0.12.4)
[INFO] [stderr]       Adding qrcode v0.12.0 (latest: v0.14.0)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding redox_syscall v0.2.16 (latest: v0.5.1)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (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 sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding signature v1.6.4 (latest: v2.2.0)
[INFO] [stderr]       Adding spki v0.5.4 (latest: v0.7.3)
[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 vodozemac v0.3.0 (latest: v0.5.1)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] [stderr]       Adding x25519-dalek v1.2.0 (latest: v2.0.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (latest: v1.7.0)
[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 ruma-identifiers-validation v0.9.3
[INFO] [stderr]   Downloaded wildmatch v2.3.3
[INFO] [stderr]   Downloaded ruma v0.7.4
[INFO] [stderr]   Downloaded ruma-macros v0.10.5
[INFO] [stderr]   Downloaded js_option v0.1.1
[INFO] [stderr]   Downloaded js_int v0.2.2
[INFO] [stderr]   Downloaded lru v0.8.1
[INFO] [stderr]   Downloaded wasm-timer v0.2.5
[INFO] [stderr]   Downloaded matrix-sdk-common v0.6.0
[INFO] [stderr]   Downloaded qrcode v0.12.0
[INFO] [stderr]   Downloaded matrix-sdk-crypto v0.6.0
[INFO] [stderr]   Downloaded ruma-common v0.10.5
[INFO] [stderr]   Downloaded vodozemac v0.3.0
[INFO] [stderr]   Downloaded checked_int_cast v1.0.0
[INFO] [stderr]   Downloaded matrix-sdk-qrcode v0.4.0
[INFO] [stderr]   Downloaded block-padding v0.3.3
[INFO] [stderr]   Downloaded cbc v0.1.2
[INFO] [stderr]   Downloaded pkcs7 v0.3.0
[INFO] [stderr]   Downloaded matrix-sdk-test-macros v0.3.0
[INFO] [stderr]   Downloaded matrix-sdk-test v0.6.0
[INFO] [stderr]   Downloaded assign v1.1.1
[INFO] [stderr]   Downloaded ruma-client-api v0.15.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6e1517a9d1de5be30394e4fa9a671a94d337a7e7a7b33234a641d7332907e848
[INFO] running `Command { std: "docker" "start" "-a" "6e1517a9d1de5be30394e4fa9a671a94d337a7e7a7b33234a641d7332907e848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e1517a9d1de5be30394e4fa9a671a94d337a7e7a7b33234a641d7332907e848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e1517a9d1de5be30394e4fa9a671a94d337a7e7a7b33234a641d7332907e848", kill_on_drop: false }`
[INFO] [stdout] 6e1517a9d1de5be30394e4fa9a671a94d337a7e7a7b33234a641d7332907e848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 31d9c6a8444660d7046ca3659da90409a086e9189d98567615025bd79e47045f
[INFO] running `Command { std: "docker" "start" "-a" "31d9c6a8444660d7046ca3659da90409a086e9189d98567615025bd79e47045f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling js_int v0.2.2
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking wildmatch v2.3.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking assign v1.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling matrix-sdk-common v0.6.0
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling uuid v1.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking lru v0.8.1
[INFO] [stderr]     Checking dashmap v5.5.3
[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 futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling gensym v0.1.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking pin-project v1.1.5
[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 futures-executor v0.3.30
[INFO] [stderr]     Checking futures-signals v0.3.33
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking js_option v0.1.1
[INFO] [stderr]     Checking serde_json v1.0.115
[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
[INFO] [stderr]     Checking matrix-sdk-base v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Arc` is imported redundantly
[INFO] [stdout]    --> src/rooms/normal.rs:836:9
[INFO] [stdout]     |
[INFO] [stdout] 836 |     use std::sync::Arc;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 853 |     use super::*;
[INFO] [stdout]     |         -------- the item `Arc` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `MinimalStateEvent` is imported redundantly
[INFO] [stdout]    --> src/rooms/normal.rs:856:9
[INFO] [stdout]     |
[INFO] [stdout] 853 |     use super::*;
[INFO] [stdout]     |         -------- the item `MinimalStateEvent` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 856 |         MinimalStateEvent, OriginalMinimalStateEvent,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "31d9c6a8444660d7046ca3659da90409a086e9189d98567615025bd79e47045f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d9c6a8444660d7046ca3659da90409a086e9189d98567615025bd79e47045f", kill_on_drop: false }`
[INFO] [stdout] 31d9c6a8444660d7046ca3659da90409a086e9189d98567615025bd79e47045f