[INFO] fetching crate ruma-client-api 0.17.4...
[INFO] checking ruma-client-api-0.17.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate ruma-client-api 0.17.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate ruma-client-api 0.17.4 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 ruma-client-api 0.17.4
[INFO] finished tweaking crates.io crate ruma-client-api 0.17.4
[INFO] tweaked toml for crates.io crate ruma-client-api 0.17.4 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 60 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding http v0.2.12 (latest: v1.1.0)
[INFO] [stderr]       Adding proc-macro-crate v2.0.2 (latest: v3.1.0)
[INFO] [stderr]       Adding toml v0.8.2 (latest: v0.8.12)
[INFO] [stderr]       Adding toml_datetime v0.6.3 (latest: v0.6.5)
[INFO] [stderr]       Adding toml_edit v0.20.2 (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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ruma-identifiers-validation v0.9.3
[INFO] [stderr]   Downloaded assert_matches2 v0.1.2
[INFO] [stderr]   Downloaded assign v1.1.1
[INFO] [stderr]   Downloaded as_variant v1.2.0
[INFO] [stderr]   Downloaded ruma-common v0.12.1
[INFO] [stderr]   Downloaded ruma-macros v0.12.0
[INFO] [stderr]   Downloaded ruma-events v0.27.11
[INFO] [stderr]   Downloaded js_option v0.1.1
[INFO] [stderr]   Downloaded konst_kernel v0.3.8
[INFO] [stderr]   Downloaded typewit_proc_macros v1.8.1
[INFO] [stderr]   Downloaded typewit v1.9.0
[INFO] [stderr]   Downloaded konst v0.3.8
[INFO] [stderr]   Downloaded js_int v0.2.2
[INFO] [stderr]   Downloaded serde_html_form v0.2.6
[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] 679e75d5ccb0c3c09ed7852d06acc3d6955ce5a42b0765eec905ec577a450fe5
[INFO] running `Command { std: "docker" "start" "-a" "679e75d5ccb0c3c09ed7852d06acc3d6955ce5a42b0765eec905ec577a450fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "679e75d5ccb0c3c09ed7852d06acc3d6955ce5a42b0765eec905ec577a450fe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679e75d5ccb0c3c09ed7852d06acc3d6955ce5a42b0765eec905ec577a450fe5", kill_on_drop: false }`
[INFO] [stdout] 679e75d5ccb0c3c09ed7852d06acc3d6955ce5a42b0765eec905ec577a450fe5
[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] fba26063c87184b4ab5691caa0725cd68a280e0ba27291b5c153af50c98a75bf
[INFO] running `Command { std: "docker" "start" "-a" "fba26063c87184b4ab5691caa0725cd68a280e0ba27291b5c153af50c98a75bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling typewit_proc_macros v1.8.1
[INFO] [stderr]    Compiling js_int v0.2.2
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling ruma-common v0.12.1
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking const_panic v0.2.8
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking as_variant v1.2.0
[INFO] [stderr]     Checking wildmatch v2.3.3
[INFO] [stderr]    Compiling ruma-client-api v0.17.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assign v1.1.1
[INFO] [stderr]     Checking assert_matches2 v0.1.2
[INFO] [stderr]    Compiling ruma-identifiers-validation v0.9.3
[INFO] [stderr]     Checking typewit v1.9.0
[INFO] [stderr]     Checking konst_kernel v0.3.8
[INFO] [stderr]     Checking konst v0.3.8
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking indexmap v2.2.6
[INFO] [stderr]     Checking js_option v0.1.1
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.20.2
[INFO] [stderr]     Checking serde_html_form v0.2.6
[INFO] [stderr]    Compiling proc-macro-crate v2.0.2
[INFO] [stderr]    Compiling toml v0.8.2
[INFO] [stderr]    Compiling ruma-macros v0.12.0
[INFO] [stderr]     Checking ruma-events v0.27.11
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.72s
[INFO] running `Command { std: "docker" "inspect" "fba26063c87184b4ab5691caa0725cd68a280e0ba27291b5c153af50c98a75bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fba26063c87184b4ab5691caa0725cd68a280e0ba27291b5c153af50c98a75bf", kill_on_drop: false }`
[INFO] [stdout] fba26063c87184b4ab5691caa0725cd68a280e0ba27291b5c153af50c98a75bf