[INFO] cloning repository https://github.com/zenatron36/rust-texteditor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zenatron36/rust-texteditor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenatron36%2Frust-texteditor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenatron36%2Frust-texteditor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ada044a6cfcc6a63d4bd1a117fe44ff4124f6481
[INFO] checking zenatron36/rust-texteditor against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenatron36%2Frust-texteditor" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zenatron36/rust-texteditor 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/zenatron36/rust-texteditor
[INFO] finished tweaking git repo https://github.com/zenatron36/rust-texteditor
[INFO] tweaked toml for git repo https://github.com/zenatron36/rust-texteditor written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zenatron36/rust-texteditor 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-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] 28bbdb028136654567d341228e0a1c0ea4680bc9ccc6f0ec0cb5ce2e4e8cae6b
[INFO] running `Command { std: "docker" "start" "-a" "28bbdb028136654567d341228e0a1c0ea4680bc9ccc6f0ec0cb5ce2e4e8cae6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28bbdb028136654567d341228e0a1c0ea4680bc9ccc6f0ec0cb5ce2e4e8cae6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28bbdb028136654567d341228e0a1c0ea4680bc9ccc6f0ec0cb5ce2e4e8cae6b", kill_on_drop: false }`
[INFO] [stdout] 28bbdb028136654567d341228e0a1c0ea4680bc9ccc6f0ec0cb5ce2e4e8cae6b
[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] 83884ddf4e41061e5e1379b03a7b75b800d1e2d966b8ca50a7f7908e7b463881
[INFO] running `Command { std: "docker" "start" "-a" "83884ddf4e41061e5e1379b03a7b75b800d1e2d966b8ca50a7f7908e7b463881", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "83884ddf4e41061e5e1379b03a7b75b800d1e2d966b8ca50a7f7908e7b463881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83884ddf4e41061e5e1379b03a7b75b800d1e2d966b8ca50a7f7908e7b463881", kill_on_drop: false }`
[INFO] [stdout] 83884ddf4e41061e5e1379b03a7b75b800d1e2d966b8ca50a7f7908e7b463881
[INFO] checking zenatron36/rust-texteditor against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzenatron36%2Frust-texteditor" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zenatron36/rust-texteditor 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/zenatron36/rust-texteditor
[INFO] finished tweaking git repo https://github.com/zenatron36/rust-texteditor
[INFO] tweaked toml for git repo https://github.com/zenatron36/rust-texteditor written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zenatron36/rust-texteditor 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-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] 19f2b6bb6c7ce7f741f336e3acf88be2e3538a1afb829a9d84046a00f4c1aefa
[INFO] running `Command { std: "docker" "start" "-a" "19f2b6bb6c7ce7f741f336e3acf88be2e3538a1afb829a9d84046a00f4c1aefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f2b6bb6c7ce7f741f336e3acf88be2e3538a1afb829a9d84046a00f4c1aefa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f2b6bb6c7ce7f741f336e3acf88be2e3538a1afb829a9d84046a00f4c1aefa", kill_on_drop: false }`
[INFO] [stdout] 19f2b6bb6c7ce7f741f336e3acf88be2e3538a1afb829a9d84046a00f4c1aefa
[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] 4126d3c17101482a648ab54434f4c873d2c5058e5b81a83c7a1e2b367d788b1b
[INFO] running `Command { std: "docker" "start" "-a" "4126d3c17101482a648ab54434f4c873d2c5058e5b81a83c7a1e2b367d788b1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking termion v2.0.1
[INFO] [stderr]     Checking texteditor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "4126d3c17101482a648ab54434f4c873d2c5058e5b81a83c7a1e2b367d788b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4126d3c17101482a648ab54434f4c873d2c5058e5b81a83c7a1e2b367d788b1b", kill_on_drop: false }`
[INFO] [stdout] 4126d3c17101482a648ab54434f4c873d2c5058e5b81a83c7a1e2b367d788b1b