[INFO] fetching crate scopeguard 1.2.0...
[INFO] checking scopeguard-1.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate scopeguard 1.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate scopeguard 1.2.0 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 scopeguard 1.2.0
[INFO] finished tweaking crates.io crate scopeguard 1.2.0
[INFO] tweaked toml for crates.io crate scopeguard 1.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate scopeguard 1.2.0 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] 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] b338e55f7278fe2dd02f192346cd0d486873758f25c1a27921bf5a3898c81600
[INFO] running `Command { std: "docker" "start" "-a" "b338e55f7278fe2dd02f192346cd0d486873758f25c1a27921bf5a3898c81600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b338e55f7278fe2dd02f192346cd0d486873758f25c1a27921bf5a3898c81600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b338e55f7278fe2dd02f192346cd0d486873758f25c1a27921bf5a3898c81600", kill_on_drop: false }`
[INFO] [stdout] b338e55f7278fe2dd02f192346cd0d486873758f25c1a27921bf5a3898c81600
[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] 31a095c31a96c3f9d8098e27a887e1eca7460774125909e1d80caa5823d1feea
[INFO] running `Command { std: "docker" "start" "-a" "31a095c31a96c3f9d8098e27a887e1eca7460774125909e1d80caa5823d1feea", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "31a095c31a96c3f9d8098e27a887e1eca7460774125909e1d80caa5823d1feea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a095c31a96c3f9d8098e27a887e1eca7460774125909e1d80caa5823d1feea", kill_on_drop: false }`
[INFO] [stdout] 31a095c31a96c3f9d8098e27a887e1eca7460774125909e1d80caa5823d1feea
[INFO] checking scopeguard-1.2.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate scopeguard 1.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate scopeguard 1.2.0 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 scopeguard 1.2.0
[INFO] finished tweaking crates.io crate scopeguard 1.2.0
[INFO] tweaked toml for crates.io crate scopeguard 1.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate scopeguard 1.2.0 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-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] 96b976995485c9a5f5d57e317d8492b56910692eea0d3803a56420b2a7897344
[INFO] running `Command { std: "docker" "start" "-a" "96b976995485c9a5f5d57e317d8492b56910692eea0d3803a56420b2a7897344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96b976995485c9a5f5d57e317d8492b56910692eea0d3803a56420b2a7897344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b976995485c9a5f5d57e317d8492b56910692eea0d3803a56420b2a7897344", kill_on_drop: false }`
[INFO] [stdout] 96b976995485c9a5f5d57e317d8492b56910692eea0d3803a56420b2a7897344
[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] 2b37f7c82b4519b27ae5e45cc7b6ab4ca216d5629d2cc25ad526514ffeb62a2d
[INFO] running `Command { std: "docker" "start" "-a" "2b37f7c82b4519b27ae5e45cc7b6ab4ca216d5629d2cc25ad526514ffeb62a2d", kill_on_drop: false }`
[INFO] [stderr]     Checking scopeguard v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "2b37f7c82b4519b27ae5e45cc7b6ab4ca216d5629d2cc25ad526514ffeb62a2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b37f7c82b4519b27ae5e45cc7b6ab4ca216d5629d2cc25ad526514ffeb62a2d", kill_on_drop: false }`
[INFO] [stdout] 2b37f7c82b4519b27ae5e45cc7b6ab4ca216d5629d2cc25ad526514ffeb62a2d