[INFO] fetching crate tokio-utils 0.1.2...
[INFO] checking tokio-utils-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tokio-utils 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate tokio-utils 0.1.2 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 tokio-utils 0.1.2
[INFO] finished tweaking crates.io crate tokio-utils 0.1.2
[INFO] tweaked toml for crates.io crate tokio-utils 0.1.2 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 47 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[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] 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tub v0.3.7
[INFO] [stderr]   Downloaded async-stdin v0.3.1
[INFO] [stderr]   Downloaded async-throttle v0.3.2
[INFO] [stderr]   Downloaded shutdown-async v0.1.1
[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] b2c301b828e983087eca040f281f71ca0573c685cdef3b7b529e0cef9543a1a4
[INFO] running `Command { std: "docker" "start" "-a" "b2c301b828e983087eca040f281f71ca0573c685cdef3b7b529e0cef9543a1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2c301b828e983087eca040f281f71ca0573c685cdef3b7b529e0cef9543a1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2c301b828e983087eca040f281f71ca0573c685cdef3b7b529e0cef9543a1a4", kill_on_drop: false }`
[INFO] [stdout] b2c301b828e983087eca040f281f71ca0573c685cdef3b7b529e0cef9543a1a4
[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] ca2bcb8ffc66c8f688a338973a3cc35f6d06a4629e62842a62938cb8e76ad77a
[INFO] running `Command { std: "docker" "start" "-a" "ca2bcb8ffc66c8f688a338973a3cc35f6d06a4629e62842a62938cb8e76ad77a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking async-stdin v0.3.1
[INFO] [stderr]     Checking shutdown-async v0.1.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking backoff v0.4.0
[INFO] [stderr]     Checking async-throttle v0.3.2
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking tub v0.3.7
[INFO] [stderr]     Checking tokio-utils v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "ca2bcb8ffc66c8f688a338973a3cc35f6d06a4629e62842a62938cb8e76ad77a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca2bcb8ffc66c8f688a338973a3cc35f6d06a4629e62842a62938cb8e76ad77a", kill_on_drop: false }`
[INFO] [stdout] ca2bcb8ffc66c8f688a338973a3cc35f6d06a4629e62842a62938cb8e76ad77a
[INFO] checking tokio-utils-0.1.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tokio-utils 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tokio-utils 0.1.2 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 tokio-utils 0.1.2
[INFO] finished tweaking crates.io crate tokio-utils 0.1.2
[INFO] tweaked toml for crates.io crate tokio-utils 0.1.2 written to /workspace/builds/worker-0-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] d196d9a4bafbe4397209d3caa4c4c9ef280bacd2fc9f2af0b42a57115aa0ed39
[INFO] running `Command { std: "docker" "start" "-a" "d196d9a4bafbe4397209d3caa4c4c9ef280bacd2fc9f2af0b42a57115aa0ed39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d196d9a4bafbe4397209d3caa4c4c9ef280bacd2fc9f2af0b42a57115aa0ed39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d196d9a4bafbe4397209d3caa4c4c9ef280bacd2fc9f2af0b42a57115aa0ed39", kill_on_drop: false }`
[INFO] [stdout] d196d9a4bafbe4397209d3caa4c4c9ef280bacd2fc9f2af0b42a57115aa0ed39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f810d1b44b815c968b13ac4eeb3fdfbdb4021131a7935aa21670f79d2cc73edc
[INFO] running `Command { std: "docker" "start" "-a" "f810d1b44b815c968b13ac4eeb3fdfbdb4021131a7935aa21670f79d2cc73edc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking shutdown-async v0.1.1
[INFO] [stderr]     Checking async-stdin v0.3.1
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking backoff v0.4.0
[INFO] [stderr]     Checking async-throttle v0.3.2
[INFO] [stderr]     Checking crossbeam-queue v0.3.11
[INFO] [stderr]     Checking tub v0.3.7
[INFO] [stderr]     Checking tokio-utils v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "f810d1b44b815c968b13ac4eeb3fdfbdb4021131a7935aa21670f79d2cc73edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f810d1b44b815c968b13ac4eeb3fdfbdb4021131a7935aa21670f79d2cc73edc", kill_on_drop: false }`
[INFO] [stdout] f810d1b44b815c968b13ac4eeb3fdfbdb4021131a7935aa21670f79d2cc73edc