[INFO] fetching crate fxread 0.2.11...
[INFO] checking fxread-0.2.11 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate fxread 0.2.11 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate fxread 0.2.11 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 fxread 0.2.11
[INFO] finished tweaking crates.io crate fxread 0.2.11
[INFO] tweaked toml for crates.io crate fxread 0.2.11 written to /workspace/builds/worker-2-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 7 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 252fb6507de1ea3efe30d3164bbd6c3c54b5361d266ef785972d985ef1c12620
[INFO] running `Command { std: "docker" "start" "-a" "252fb6507de1ea3efe30d3164bbd6c3c54b5361d266ef785972d985ef1c12620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "252fb6507de1ea3efe30d3164bbd6c3c54b5361d266ef785972d985ef1c12620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "252fb6507de1ea3efe30d3164bbd6c3c54b5361d266ef785972d985ef1c12620", kill_on_drop: false }`
[INFO] [stdout] 252fb6507de1ea3efe30d3164bbd6c3c54b5361d266ef785972d985ef1c12620
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 36a9fa8bcfc95b5bd750083b50d2c8529d4dae8276cfc9f56e3886f26cf02b8e
[INFO] running `Command { std: "docker" "start" "-a" "36a9fa8bcfc95b5bd750083b50d2c8529d4dae8276cfc9f56e3886f26cf02b8e", kill_on_drop: false }`
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking fxread v0.2.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "36a9fa8bcfc95b5bd750083b50d2c8529d4dae8276cfc9f56e3886f26cf02b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36a9fa8bcfc95b5bd750083b50d2c8529d4dae8276cfc9f56e3886f26cf02b8e", kill_on_drop: false }`
[INFO] [stdout] 36a9fa8bcfc95b5bd750083b50d2c8529d4dae8276cfc9f56e3886f26cf02b8e
[INFO] checking fxread-0.2.11 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate fxread 0.2.11 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate fxread 0.2.11 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 fxread 0.2.11
[INFO] finished tweaking crates.io crate fxread 0.2.11
[INFO] tweaked toml for crates.io crate fxread 0.2.11 written to /workspace/builds/worker-2-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6f4e7104be1cf3a26d456dc6cc0c37d42da4d3e4f8b15b8b39f44c9d8a27d43f
[INFO] running `Command { std: "docker" "start" "-a" "6f4e7104be1cf3a26d456dc6cc0c37d42da4d3e4f8b15b8b39f44c9d8a27d43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f4e7104be1cf3a26d456dc6cc0c37d42da4d3e4f8b15b8b39f44c9d8a27d43f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f4e7104be1cf3a26d456dc6cc0c37d42da4d3e4f8b15b8b39f44c9d8a27d43f", kill_on_drop: false }`
[INFO] [stdout] 6f4e7104be1cf3a26d456dc6cc0c37d42da4d3e4f8b15b8b39f44c9d8a27d43f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] eaf0ea6203f0bcb8cdc4e6c229ed02b6f9da69507cedb63d65db14ac8a3ba585
[INFO] running `Command { std: "docker" "start" "-a" "eaf0ea6203f0bcb8cdc4e6c229ed02b6f9da69507cedb63d65db14ac8a3ba585", kill_on_drop: false }`
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking fxread v0.2.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "eaf0ea6203f0bcb8cdc4e6c229ed02b6f9da69507cedb63d65db14ac8a3ba585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaf0ea6203f0bcb8cdc4e6c229ed02b6f9da69507cedb63d65db14ac8a3ba585", kill_on_drop: false }`
[INFO] [stdout] eaf0ea6203f0bcb8cdc4e6c229ed02b6f9da69507cedb63d65db14ac8a3ba585