[INFO] fetching crate vru-cancel 0.1.2...
[INFO] checking vru-cancel-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate vru-cancel 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate vru-cancel 0.1.2 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 vru-cancel 0.1.2
[INFO] finished tweaking crates.io crate vru-cancel 0.1.2
[INFO] tweaked toml for crates.io crate vru-cancel 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate vru-cancel 0.1.2 already has a lockfile, it will not be regenerated
[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]     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-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] 8fdd612e8c804ff6f7d206c5ce23f2d9883172a1a767cc402da4e7788ceddd44
[INFO] running `Command { std: "docker" "start" "-a" "8fdd612e8c804ff6f7d206c5ce23f2d9883172a1a767cc402da4e7788ceddd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fdd612e8c804ff6f7d206c5ce23f2d9883172a1a767cc402da4e7788ceddd44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fdd612e8c804ff6f7d206c5ce23f2d9883172a1a767cc402da4e7788ceddd44", kill_on_drop: false }`
[INFO] [stdout] 8fdd612e8c804ff6f7d206c5ce23f2d9883172a1a767cc402da4e7788ceddd44
[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] 3434da5c1778fc420d7562d5fc6ee2ff685cc0b0c67fbe7398ce4934e9c6dc6f
[INFO] running `Command { std: "docker" "start" "-a" "3434da5c1778fc420d7562d5fc6ee2ff685cc0b0c67fbe7398ce4934e9c6dc6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking vru-cancel v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.58s
[INFO] running `Command { std: "docker" "inspect" "3434da5c1778fc420d7562d5fc6ee2ff685cc0b0c67fbe7398ce4934e9c6dc6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3434da5c1778fc420d7562d5fc6ee2ff685cc0b0c67fbe7398ce4934e9c6dc6f", kill_on_drop: false }`
[INFO] [stdout] 3434da5c1778fc420d7562d5fc6ee2ff685cc0b0c67fbe7398ce4934e9c6dc6f
[INFO] checking vru-cancel-0.1.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate vru-cancel 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate vru-cancel 0.1.2 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 vru-cancel 0.1.2
[INFO] finished tweaking crates.io crate vru-cancel 0.1.2
[INFO] tweaked toml for crates.io crate vru-cancel 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate vru-cancel 0.1.2 already has a lockfile, it will not be regenerated
[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-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] 46e10f5a26295238d87113b0f1a255ede3f32637ab301ebcd5435308028fac12
[INFO] running `Command { std: "docker" "start" "-a" "46e10f5a26295238d87113b0f1a255ede3f32637ab301ebcd5435308028fac12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46e10f5a26295238d87113b0f1a255ede3f32637ab301ebcd5435308028fac12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46e10f5a26295238d87113b0f1a255ede3f32637ab301ebcd5435308028fac12", kill_on_drop: false }`
[INFO] [stdout] 46e10f5a26295238d87113b0f1a255ede3f32637ab301ebcd5435308028fac12
[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] f5807d2c94c71ce7f99b26227f3cafd90c45d6e06525acc93a7eb9aa6c74f193
[INFO] running `Command { std: "docker" "start" "-a" "f5807d2c94c71ce7f99b26227f3cafd90c45d6e06525acc93a7eb9aa6c74f193", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking vru-cancel v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.58s
[INFO] running `Command { std: "docker" "inspect" "f5807d2c94c71ce7f99b26227f3cafd90c45d6e06525acc93a7eb9aa6c74f193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5807d2c94c71ce7f99b26227f3cafd90c45d6e06525acc93a7eb9aa6c74f193", kill_on_drop: false }`
[INFO] [stdout] f5807d2c94c71ce7f99b26227f3cafd90c45d6e06525acc93a7eb9aa6c74f193