[INFO] cloning repository https://github.com/aligator/rust-snake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aligator/rust-snake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faligator%2Frust-snake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faligator%2Frust-snake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c0403ec6a49df226414f09bea10a8cc7118f3d1
[INFO] checking aligator/rust-snake against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faligator%2Frust-snake" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aligator/rust-snake 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 git repo https://github.com/aligator/rust-snake
[INFO] finished tweaking git repo https://github.com/aligator/rust-snake
[INFO] tweaked toml for git repo https://github.com/aligator/rust-snake written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/aligator/rust-snake 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]     Updating git repository `https://github.com/crossterm-rs/crossterm.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-cursor.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-input.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-screen.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-style.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-terminal.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-utils.git`
[INFO] [stderr]     Updating git repository `https://github.com/crossterm-rs/crossterm-winapi.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding crossterm v0.11.1 (https://github.com/crossterm-rs/crossterm.git?branch=master#bed198a1)
[INFO] [stderr]       Adding crossterm_cursor v0.3.1 (https://github.com/crossterm-rs/crossterm-cursor.git?branch=master#58b5ce9d)
[INFO] [stderr]       Adding crossterm_input v0.4.1 (https://github.com/crossterm-rs/crossterm-input.git?branch=master#bb53032d)
[INFO] [stderr]       Adding crossterm_screen v0.3.1 (https://github.com/crossterm-rs/crossterm-screen.git?branch=master#929fb445)
[INFO] [stderr]       Adding crossterm_style v0.5.1 (https://github.com/crossterm-rs/crossterm-style.git?branch=master#7e87cbc7)
[INFO] [stderr]       Adding crossterm_terminal v0.3.1 (https://github.com/crossterm-rs/crossterm-terminal.git?branch=master#f70007c6)
[INFO] [stderr]       Adding crossterm_utils v0.3.1 (https://github.com/crossterm-rs/crossterm-utils.git?branch=master#152cd562)
[INFO] [stderr]       Adding crossterm_winapi v0.2.1 (https://github.com/crossterm-rs/crossterm-winapi.git?branch=master#eea5cea3)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4d293baa7f4fb8cb07b5833e966172357aeaf62409c6a4f0fbfd2a4e6781176d
[INFO] running `Command { std: "docker" "start" "-a" "4d293baa7f4fb8cb07b5833e966172357aeaf62409c6a4f0fbfd2a4e6781176d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d293baa7f4fb8cb07b5833e966172357aeaf62409c6a4f0fbfd2a4e6781176d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d293baa7f4fb8cb07b5833e966172357aeaf62409c6a4f0fbfd2a4e6781176d", kill_on_drop: false }`
[INFO] [stdout] 4d293baa7f4fb8cb07b5833e966172357aeaf62409c6a4f0fbfd2a4e6781176d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 99a64721762e6f2f8ba10ffaef2471dd0f7a88e12b09ef47bc3f88700b6e7642
[INFO] running `Command { std: "docker" "start" "-a" "99a64721762e6f2f8ba10ffaef2471dd0f7a88e12b09ef47bc3f88700b6e7642", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking crossterm_utils v0.3.1 (https://github.com/crossterm-rs/crossterm-utils.git?branch=master#152cd562)
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossterm_screen v0.3.1 (https://github.com/crossterm-rs/crossterm-screen.git?branch=master#929fb445)
[INFO] [stderr]     Checking crossterm_cursor v0.3.1 (https://github.com/crossterm-rs/crossterm-cursor.git?branch=master#58b5ce9d)
[INFO] [stderr]     Checking crossterm_style v0.5.1 (https://github.com/crossterm-rs/crossterm-style.git?branch=master#7e87cbc7)
[INFO] [stderr]     Checking crossterm_input v0.4.1 (https://github.com/crossterm-rs/crossterm-input.git?branch=master#bb53032d)
[INFO] [stderr]     Checking crossterm_terminal v0.3.1 (https://github.com/crossterm-rs/crossterm-terminal.git?branch=master#f70007c6)
[INFO] [stderr]     Checking crossterm v0.11.1 (https://github.com/crossterm-rs/crossterm.git?branch=master#bed198a1)
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking snake v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "99a64721762e6f2f8ba10ffaef2471dd0f7a88e12b09ef47bc3f88700b6e7642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a64721762e6f2f8ba10ffaef2471dd0f7a88e12b09ef47bc3f88700b6e7642", kill_on_drop: false }`
[INFO] [stdout] 99a64721762e6f2f8ba10ffaef2471dd0f7a88e12b09ef47bc3f88700b6e7642
[INFO] checking aligator/rust-snake against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faligator%2Frust-snake" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aligator/rust-snake 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 git repo https://github.com/aligator/rust-snake
[INFO] finished tweaking git repo https://github.com/aligator/rust-snake
[INFO] tweaked toml for git repo https://github.com/aligator/rust-snake written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/aligator/rust-snake 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] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding crossterm v0.11.1 (https://github.com/crossterm-rs/crossterm.git?branch=master#bed198a1)
[INFO] [stderr]       Adding crossterm_cursor v0.3.1 (https://github.com/crossterm-rs/crossterm-cursor.git?branch=master#58b5ce9d)
[INFO] [stderr]       Adding crossterm_input v0.4.1 (https://github.com/crossterm-rs/crossterm-input.git?branch=master#bb53032d)
[INFO] [stderr]       Adding crossterm_screen v0.3.1 (https://github.com/crossterm-rs/crossterm-screen.git?branch=master#929fb445)
[INFO] [stderr]       Adding crossterm_style v0.5.1 (https://github.com/crossterm-rs/crossterm-style.git?branch=master#7e87cbc7)
[INFO] [stderr]       Adding crossterm_terminal v0.3.1 (https://github.com/crossterm-rs/crossterm-terminal.git?branch=master#f70007c6)
[INFO] [stderr]       Adding crossterm_utils v0.3.1 (https://github.com/crossterm-rs/crossterm-utils.git?branch=master#152cd562)
[INFO] [stderr]       Adding crossterm_winapi v0.2.1 (https://github.com/crossterm-rs/crossterm-winapi.git?branch=master#eea5cea3)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] aa0553fd791514de78cb5e386cbb5d55d779e920d1fbc4d56dea01369f8bb58d
[INFO] running `Command { std: "docker" "start" "-a" "aa0553fd791514de78cb5e386cbb5d55d779e920d1fbc4d56dea01369f8bb58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa0553fd791514de78cb5e386cbb5d55d779e920d1fbc4d56dea01369f8bb58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0553fd791514de78cb5e386cbb5d55d779e920d1fbc4d56dea01369f8bb58d", kill_on_drop: false }`
[INFO] [stdout] aa0553fd791514de78cb5e386cbb5d55d779e920d1fbc4d56dea01369f8bb58d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4ac1cd24d851f3e23707751c2f10eeab10e56f0d53e6aaedf7d39be56bdba0ce
[INFO] running `Command { std: "docker" "start" "-a" "4ac1cd24d851f3e23707751c2f10eeab10e56f0d53e6aaedf7d39be56bdba0ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking crossterm_utils v0.3.1 (https://github.com/crossterm-rs/crossterm-utils.git?branch=master#152cd562)
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossterm_screen v0.3.1 (https://github.com/crossterm-rs/crossterm-screen.git?branch=master#929fb445)
[INFO] [stderr]     Checking crossterm_cursor v0.3.1 (https://github.com/crossterm-rs/crossterm-cursor.git?branch=master#58b5ce9d)
[INFO] [stderr]     Checking crossterm_style v0.5.1 (https://github.com/crossterm-rs/crossterm-style.git?branch=master#7e87cbc7)
[INFO] [stderr]     Checking crossterm_input v0.4.1 (https://github.com/crossterm-rs/crossterm-input.git?branch=master#bb53032d)
[INFO] [stderr]     Checking crossterm_terminal v0.3.1 (https://github.com/crossterm-rs/crossterm-terminal.git?branch=master#f70007c6)
[INFO] [stderr]     Checking crossterm v0.11.1 (https://github.com/crossterm-rs/crossterm.git?branch=master#bed198a1)
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking snake v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `Command { std: "docker" "inspect" "4ac1cd24d851f3e23707751c2f10eeab10e56f0d53e6aaedf7d39be56bdba0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ac1cd24d851f3e23707751c2f10eeab10e56f0d53e6aaedf7d39be56bdba0ce", kill_on_drop: false }`
[INFO] [stdout] 4ac1cd24d851f3e23707751c2f10eeab10e56f0d53e6aaedf7d39be56bdba0ce