[INFO] fetching crate rnu 0.4.1...
[INFO] checking rnu-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rnu 0.4.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rnu 0.4.1 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 rnu 0.4.1
[INFO] finished tweaking crates.io crate rnu 0.4.1
[INFO] tweaked toml for crates.io crate rnu 0.4.1 written to /workspace/builds/worker-4-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] 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c254070058df927b11fbf35b7ada26f38b43f414d8ace9cdc0f9d7f447f8cc64
[INFO] running `Command { std: "docker" "start" "-a" "c254070058df927b11fbf35b7ada26f38b43f414d8ace9cdc0f9d7f447f8cc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c254070058df927b11fbf35b7ada26f38b43f414d8ace9cdc0f9d7f447f8cc64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c254070058df927b11fbf35b7ada26f38b43f414d8ace9cdc0f9d7f447f8cc64", kill_on_drop: false }`
[INFO] [stdout] c254070058df927b11fbf35b7ada26f38b43f414d8ace9cdc0f9d7f447f8cc64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 24c8fd8800c76b594cae04cd4fb5166745e655322baab98e65823303eb053a02
[INFO] running `Command { std: "docker" "start" "-a" "24c8fd8800c76b594cae04cd4fb5166745e655322baab98e65823303eb053a02", kill_on_drop: false }`
[INFO] [stderr]     Checking rnu v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "24c8fd8800c76b594cae04cd4fb5166745e655322baab98e65823303eb053a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24c8fd8800c76b594cae04cd4fb5166745e655322baab98e65823303eb053a02", kill_on_drop: false }`
[INFO] [stdout] 24c8fd8800c76b594cae04cd4fb5166745e655322baab98e65823303eb053a02
[INFO] checking rnu-0.4.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rnu 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rnu 0.4.1 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 rnu 0.4.1
[INFO] finished tweaking crates.io crate rnu 0.4.1
[INFO] tweaked toml for crates.io crate rnu 0.4.1 written to /workspace/builds/worker-4-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] 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c0b8f64e6a3d1220cb39e3db1697df1e6a3100236ba1718c64be6400a8607483
[INFO] running `Command { std: "docker" "start" "-a" "c0b8f64e6a3d1220cb39e3db1697df1e6a3100236ba1718c64be6400a8607483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0b8f64e6a3d1220cb39e3db1697df1e6a3100236ba1718c64be6400a8607483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0b8f64e6a3d1220cb39e3db1697df1e6a3100236ba1718c64be6400a8607483", kill_on_drop: false }`
[INFO] [stdout] c0b8f64e6a3d1220cb39e3db1697df1e6a3100236ba1718c64be6400a8607483
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ca7922bbedaa72e809aea4dd9545cedf8f9bc226e4df867ee813ebbe4140a97d
[INFO] running `Command { std: "docker" "start" "-a" "ca7922bbedaa72e809aea4dd9545cedf8f9bc226e4df867ee813ebbe4140a97d", kill_on_drop: false }`
[INFO] [stderr]     Checking rnu v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [optimized] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "ca7922bbedaa72e809aea4dd9545cedf8f9bc226e4df867ee813ebbe4140a97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7922bbedaa72e809aea4dd9545cedf8f9bc226e4df867ee813ebbe4140a97d", kill_on_drop: false }`
[INFO] [stdout] ca7922bbedaa72e809aea4dd9545cedf8f9bc226e4df867ee813ebbe4140a97d