[INFO] fetching crate exonum-build 1.0.1...
[INFO] checking exonum-build-1.0.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate exonum-build 1.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate exonum-build 1.0.1 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] started tweaking crates.io crate exonum-build 1.0.1
[INFO] finished tweaking crates.io crate exonum-build 1.0.1
[INFO] tweaked toml for crates.io crate exonum-build 1.0.1 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]     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 37 packages
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding protobuf v2.28.0 (latest: v3.4.0)
[INFO] [stderr]       Adding protobuf-codegen v2.28.0 (latest: v3.4.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding which v4.4.2 (latest: v6.0.1)
[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 protoc v2.28.0
[INFO] [stderr]   Downloaded protoc-rust v2.28.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.28.0
[INFO] [stderr]   Downloaded protobuf v2.28.0
[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] b2d48dc6dc0c14b1ae2c66f9b9f24c9eb6fc5add15e2f082153938ffc90867fd
[INFO] running `Command { std: "docker" "start" "-a" "b2d48dc6dc0c14b1ae2c66f9b9f24c9eb6fc5add15e2f082153938ffc90867fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2d48dc6dc0c14b1ae2c66f9b9f24c9eb6fc5add15e2f082153938ffc90867fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2d48dc6dc0c14b1ae2c66f9b9f24c9eb6fc5add15e2f082153938ffc90867fd", kill_on_drop: false }`
[INFO] [stdout] b2d48dc6dc0c14b1ae2c66f9b9f24c9eb6fc5add15e2f082153938ffc90867fd
[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] ac22f713d6ab9267ee62a6bd7a98c0192bef1ff72fa49a5967849ddd355addb6
[INFO] running `Command { std: "docker" "start" "-a" "ac22f713d6ab9267ee62a6bd7a98c0192bef1ff72fa49a5967849ddd355addb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking protoc v2.28.0
[INFO] [stderr]     Checking protobuf-codegen v2.28.0
[INFO] [stderr]     Checking protoc-rust v2.28.0
[INFO] [stderr]     Checking exonum-build v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.57s
[INFO] running `Command { std: "docker" "inspect" "ac22f713d6ab9267ee62a6bd7a98c0192bef1ff72fa49a5967849ddd355addb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac22f713d6ab9267ee62a6bd7a98c0192bef1ff72fa49a5967849ddd355addb6", kill_on_drop: false }`
[INFO] [stdout] ac22f713d6ab9267ee62a6bd7a98c0192bef1ff72fa49a5967849ddd355addb6
[INFO] checking exonum-build-1.0.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate exonum-build 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate exonum-build 1.0.1 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 exonum-build 1.0.1
[INFO] finished tweaking crates.io crate exonum-build 1.0.1
[INFO] tweaked toml for crates.io crate exonum-build 1.0.1 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] 828ef41c3f760fa1a5d493e14baf542ced947d4fe6fcd57fac9eebd078a18bf7
[INFO] running `Command { std: "docker" "start" "-a" "828ef41c3f760fa1a5d493e14baf542ced947d4fe6fcd57fac9eebd078a18bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "828ef41c3f760fa1a5d493e14baf542ced947d4fe6fcd57fac9eebd078a18bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828ef41c3f760fa1a5d493e14baf542ced947d4fe6fcd57fac9eebd078a18bf7", kill_on_drop: false }`
[INFO] [stdout] 828ef41c3f760fa1a5d493e14baf542ced947d4fe6fcd57fac9eebd078a18bf7
[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] d2af5407c0ba3bdb4525a30e275669e6fabdd940953f89bed8c41abebf901f56
[INFO] running `Command { std: "docker" "start" "-a" "d2af5407c0ba3bdb4525a30e275669e6fabdd940953f89bed8c41abebf901f56", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.28.0
[INFO] [stderr]     Checking home v0.5.9
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking which v4.4.2
[INFO] [stderr]     Checking protoc v2.28.0
[INFO] [stderr]     Checking protobuf-codegen v2.28.0
[INFO] [stderr]     Checking protoc-rust v2.28.0
[INFO] [stderr]     Checking exonum-build v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.28s
[INFO] running `Command { std: "docker" "inspect" "d2af5407c0ba3bdb4525a30e275669e6fabdd940953f89bed8c41abebf901f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2af5407c0ba3bdb4525a30e275669e6fabdd940953f89bed8c41abebf901f56", kill_on_drop: false }`
[INFO] [stdout] d2af5407c0ba3bdb4525a30e275669e6fabdd940953f89bed8c41abebf901f56