[INFO] fetching crate lelet-task-queue 1.0.3...
[INFO] checking lelet-task-queue-1.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate lelet-task-queue 1.0.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate lelet-task-queue 1.0.3 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 lelet-task-queue 1.0.3
[INFO] finished tweaking crates.io crate lelet-task-queue 1.0.3
[INFO] tweaked toml for crates.io crate lelet-task-queue 1.0.3 written to /workspace/builds/worker-7-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 9 packages
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[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 lelet-defer v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 45dc0f19cfbe23a9d144049b6e9d17c1512296a8fac852039bec57d90fbde10c
[INFO] running `Command { std: "docker" "start" "-a" "45dc0f19cfbe23a9d144049b6e9d17c1512296a8fac852039bec57d90fbde10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45dc0f19cfbe23a9d144049b6e9d17c1512296a8fac852039bec57d90fbde10c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45dc0f19cfbe23a9d144049b6e9d17c1512296a8fac852039bec57d90fbde10c", kill_on_drop: false }`
[INFO] [stdout] 45dc0f19cfbe23a9d144049b6e9d17c1512296a8fac852039bec57d90fbde10c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2894fa5eabaa78d13c9f0108fc11279045cbd6b2c2170b9aa9c8655d845e3eed
[INFO] running `Command { std: "docker" "start" "-a" "2894fa5eabaa78d13c9f0108fc11279045cbd6b2c2170b9aa9c8655d845e3eed", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking lelet-defer v1.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking lelet-task-queue v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "2894fa5eabaa78d13c9f0108fc11279045cbd6b2c2170b9aa9c8655d845e3eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2894fa5eabaa78d13c9f0108fc11279045cbd6b2c2170b9aa9c8655d845e3eed", kill_on_drop: false }`
[INFO] [stdout] 2894fa5eabaa78d13c9f0108fc11279045cbd6b2c2170b9aa9c8655d845e3eed
[INFO] checking lelet-task-queue-1.0.3 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate lelet-task-queue 1.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate lelet-task-queue 1.0.3 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lelet-task-queue 1.0.3
[INFO] finished tweaking crates.io crate lelet-task-queue 1.0.3
[INFO] tweaked toml for crates.io crate lelet-task-queue 1.0.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0af71ae0e0d21641fb31bc44972ffa581ddb109518e9d1ca5ca0423822fac1ba
[INFO] running `Command { std: "docker" "start" "-a" "0af71ae0e0d21641fb31bc44972ffa581ddb109518e9d1ca5ca0423822fac1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0af71ae0e0d21641fb31bc44972ffa581ddb109518e9d1ca5ca0423822fac1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af71ae0e0d21641fb31bc44972ffa581ddb109518e9d1ca5ca0423822fac1ba", kill_on_drop: false }`
[INFO] [stdout] 0af71ae0e0d21641fb31bc44972ffa581ddb109518e9d1ca5ca0423822fac1ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ba336817921242b66cacae4a9ea865e2f35a9a7fb72e0e7f0777c015ea7879
[INFO] running `Command { std: "docker" "start" "-a" "47ba336817921242b66cacae4a9ea865e2f35a9a7fb72e0e7f0777c015ea7879", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking lelet-defer v1.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking lelet-task-queue v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "47ba336817921242b66cacae4a9ea865e2f35a9a7fb72e0e7f0777c015ea7879", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ba336817921242b66cacae4a9ea865e2f35a9a7fb72e0e7f0777c015ea7879", kill_on_drop: false }`
[INFO] [stdout] 47ba336817921242b66cacae4a9ea865e2f35a9a7fb72e0e7f0777c015ea7879