[INFO] fetching crate riscv_emu_rust 0.2.0...
[INFO] checking riscv_emu_rust-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate riscv_emu_rust 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate riscv_emu_rust 0.2.0 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 riscv_emu_rust 0.2.0
[INFO] finished tweaking crates.io crate riscv_emu_rust 0.2.0
[INFO] tweaked toml for crates.io crate riscv_emu_rust 0.2.0 written to /workspace/builds/worker-3-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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 432f73292195ff3c9a5fc5cab8d595955df2cb1b8782318e959483c00a1caef8
[INFO] running `Command { std: "docker" "start" "-a" "432f73292195ff3c9a5fc5cab8d595955df2cb1b8782318e959483c00a1caef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "432f73292195ff3c9a5fc5cab8d595955df2cb1b8782318e959483c00a1caef8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "432f73292195ff3c9a5fc5cab8d595955df2cb1b8782318e959483c00a1caef8", kill_on_drop: false }`
[INFO] [stdout] 432f73292195ff3c9a5fc5cab8d595955df2cb1b8782318e959483c00a1caef8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2c596304983c43c16a5420eafcc140e4fd217c7a7cd232c7d33ba6de264b90c6
[INFO] running `Command { std: "docker" "start" "-a" "2c596304983c43c16a5420eafcc140e4fd217c7a7cd232c7d33ba6de264b90c6", kill_on_drop: false }`
[INFO] [stderr]     Checking riscv_emu_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "2c596304983c43c16a5420eafcc140e4fd217c7a7cd232c7d33ba6de264b90c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c596304983c43c16a5420eafcc140e4fd217c7a7cd232c7d33ba6de264b90c6", kill_on_drop: false }`
[INFO] [stdout] 2c596304983c43c16a5420eafcc140e4fd217c7a7cd232c7d33ba6de264b90c6
[INFO] checking riscv_emu_rust-0.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate riscv_emu_rust 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate riscv_emu_rust 0.2.0 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 riscv_emu_rust 0.2.0
[INFO] finished tweaking crates.io crate riscv_emu_rust 0.2.0
[INFO] tweaked toml for crates.io crate riscv_emu_rust 0.2.0 written to /workspace/builds/worker-3-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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ff6eead6d03d83a3af3b614a9ee3a10897b984b7b53acd6be01819fd74c3f1bf
[INFO] running `Command { std: "docker" "start" "-a" "ff6eead6d03d83a3af3b614a9ee3a10897b984b7b53acd6be01819fd74c3f1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff6eead6d03d83a3af3b614a9ee3a10897b984b7b53acd6be01819fd74c3f1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6eead6d03d83a3af3b614a9ee3a10897b984b7b53acd6be01819fd74c3f1bf", kill_on_drop: false }`
[INFO] [stdout] ff6eead6d03d83a3af3b614a9ee3a10897b984b7b53acd6be01819fd74c3f1bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7a82c710cacd7b7f8b0c6cb2b7249b9b4d6406d2f0a80f56dfb3f54e4f9232bd
[INFO] running `Command { std: "docker" "start" "-a" "7a82c710cacd7b7f8b0c6cb2b7249b9b4d6406d2f0a80f56dfb3f54e4f9232bd", kill_on_drop: false }`
[INFO] [stderr]     Checking riscv_emu_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "7a82c710cacd7b7f8b0c6cb2b7249b9b4d6406d2f0a80f56dfb3f54e4f9232bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a82c710cacd7b7f8b0c6cb2b7249b9b4d6406d2f0a80f56dfb3f54e4f9232bd", kill_on_drop: false }`
[INFO] [stdout] 7a82c710cacd7b7f8b0c6cb2b7249b9b4d6406d2f0a80f56dfb3f54e4f9232bd