[INFO] fetching crate safina-executor 0.3.3...
[INFO] checking safina-executor-0.3.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate safina-executor 0.3.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate safina-executor 0.3.3 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 safina-executor 0.3.3
[INFO] finished tweaking crates.io crate safina-executor 0.3.3
[INFO] tweaked toml for crates.io crate safina-executor 0.3.3 written to /workspace/builds/worker-5-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 5 packages
[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 safina-threadpool v0.2.4
[INFO] [stderr]   Downloaded safina-sync v0.2.4
[INFO] [stderr]   Downloaded safina-timer v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d7df65837f79f886b2415375cec8e17848dff67de6689ac62ce5a73e6e03764e
[INFO] running `Command { std: "docker" "start" "-a" "d7df65837f79f886b2415375cec8e17848dff67de6689ac62ce5a73e6e03764e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7df65837f79f886b2415375cec8e17848dff67de6689ac62ce5a73e6e03764e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7df65837f79f886b2415375cec8e17848dff67de6689ac62ce5a73e6e03764e", kill_on_drop: false }`
[INFO] [stdout] d7df65837f79f886b2415375cec8e17848dff67de6689ac62ce5a73e6e03764e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 63b419ab978e5794f5d1558946e06144511436018514c2323fcb5bf01c9c746e
[INFO] running `Command { std: "docker" "start" "-a" "63b419ab978e5794f5d1558946e06144511436018514c2323fcb5bf01c9c746e", kill_on_drop: false }`
[INFO] [stderr]     Checking safina-sync v0.2.4
[INFO] [stderr]     Checking safina-threadpool v0.2.4
[INFO] [stderr]     Checking safina-timer v0.1.11
[INFO] [stderr]     Checking safina-executor v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "63b419ab978e5794f5d1558946e06144511436018514c2323fcb5bf01c9c746e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b419ab978e5794f5d1558946e06144511436018514c2323fcb5bf01c9c746e", kill_on_drop: false }`
[INFO] [stdout] 63b419ab978e5794f5d1558946e06144511436018514c2323fcb5bf01c9c746e
[INFO] checking safina-executor-0.3.3 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate safina-executor 0.3.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate safina-executor 0.3.3 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 safina-executor 0.3.3
[INFO] finished tweaking crates.io crate safina-executor 0.3.3
[INFO] tweaked toml for crates.io crate safina-executor 0.3.3 written to /workspace/builds/worker-5-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]     Blocking waiting for file lock on package cache
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 48f93839693c2f1b44ec20c7d37d874636d01c5d09602096e42ce4058ebe667c
[INFO] running `Command { std: "docker" "start" "-a" "48f93839693c2f1b44ec20c7d37d874636d01c5d09602096e42ce4058ebe667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48f93839693c2f1b44ec20c7d37d874636d01c5d09602096e42ce4058ebe667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48f93839693c2f1b44ec20c7d37d874636d01c5d09602096e42ce4058ebe667c", kill_on_drop: false }`
[INFO] [stdout] 48f93839693c2f1b44ec20c7d37d874636d01c5d09602096e42ce4058ebe667c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1727eb68469eef37b34bdce54132550ca85c0ae79e09acee01d1250ecb64239f
[INFO] running `Command { std: "docker" "start" "-a" "1727eb68469eef37b34bdce54132550ca85c0ae79e09acee01d1250ecb64239f", kill_on_drop: false }`
[INFO] [stderr]     Checking safina-threadpool v0.2.4
[INFO] [stderr]     Checking safina-sync v0.2.4
[INFO] [stderr]     Checking safina-timer v0.1.11
[INFO] [stderr]     Checking safina-executor v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "1727eb68469eef37b34bdce54132550ca85c0ae79e09acee01d1250ecb64239f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1727eb68469eef37b34bdce54132550ca85c0ae79e09acee01d1250ecb64239f", kill_on_drop: false }`
[INFO] [stdout] 1727eb68469eef37b34bdce54132550ca85c0ae79e09acee01d1250ecb64239f