[INFO] cloning repository https://github.com/louisdewar/tomato
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/louisdewar/tomato" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisdewar%2Ftomato", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisdewar%2Ftomato'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85d17655bce19dd18bbc5030a02bceaa711ba16b
[INFO] checking louisdewar/tomato against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisdewar%2Ftomato" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/louisdewar/tomato 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/louisdewar/tomato
[INFO] finished tweaking git repo https://github.com/louisdewar/tomato
[INFO] tweaked toml for git repo https://github.com/louisdewar/tomato written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/louisdewar/tomato 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]  Downloading crates ...
[INFO] [stderr]   Downloaded crossterm_winapi v0.5.1
[INFO] [stderr]   Downloaded console v0.9.2
[INFO] [stderr]   Downloaded backtrace v0.3.41
[INFO] [stderr]   Downloaded crossterm v0.17.5
[INFO] [stderr]   Downloaded better-panic v0.2.0
[INFO] [stderr]   Downloaded crossterm v0.14.2
[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] d9e3aaf5867f5e748f5061f729d3c7051241426219da9e9ecc7bff05975fa611
[INFO] running `Command { std: "docker" "start" "-a" "d9e3aaf5867f5e748f5061f729d3c7051241426219da9e9ecc7bff05975fa611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9e3aaf5867f5e748f5061f729d3c7051241426219da9e9ecc7bff05975fa611", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e3aaf5867f5e748f5061f729d3c7051241426219da9e9ecc7bff05975fa611", kill_on_drop: false }`
[INFO] [stdout] d9e3aaf5867f5e748f5061f729d3c7051241426219da9e9ecc7bff05975fa611
[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] ce0b3ca8c1646ee1480c359cd496d6a57417ee8e443c755fc12f1a3c2646f73b
[INFO] running `Command { std: "docker" "start" "-a" "ce0b3ca8c1646ee1480c359cd496d6a57417ee8e443c755fc12f1a3c2646f73b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking crossterm v0.14.2
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]     Checking better-panic v0.2.0
[INFO] [stderr]     Checking tui v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tomato v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.85s
[INFO] running `Command { std: "docker" "inspect" "ce0b3ca8c1646ee1480c359cd496d6a57417ee8e443c755fc12f1a3c2646f73b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0b3ca8c1646ee1480c359cd496d6a57417ee8e443c755fc12f1a3c2646f73b", kill_on_drop: false }`
[INFO] [stdout] ce0b3ca8c1646ee1480c359cd496d6a57417ee8e443c755fc12f1a3c2646f73b
[INFO] checking louisdewar/tomato against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisdewar%2Ftomato" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/louisdewar/tomato 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/louisdewar/tomato
[INFO] finished tweaking git repo https://github.com/louisdewar/tomato
[INFO] tweaked toml for git repo https://github.com/louisdewar/tomato written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/louisdewar/tomato 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] 11c14a56f67d7bfdc260623e6d43945e6e991cbc9f1a39aaf8c098150d9cf582
[INFO] running `Command { std: "docker" "start" "-a" "11c14a56f67d7bfdc260623e6d43945e6e991cbc9f1a39aaf8c098150d9cf582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11c14a56f67d7bfdc260623e6d43945e6e991cbc9f1a39aaf8c098150d9cf582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c14a56f67d7bfdc260623e6d43945e6e991cbc9f1a39aaf8c098150d9cf582", kill_on_drop: false }`
[INFO] [stdout] 11c14a56f67d7bfdc260623e6d43945e6e991cbc9f1a39aaf8c098150d9cf582
[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] 3233bb5d219bd6b8caba97c689a7756ef1e0718265887e1bd6785fa4ca0964a9
[INFO] running `Command { std: "docker" "start" "-a" "3233bb5d219bd6b8caba97c689a7756ef1e0718265887e1bd6785fa4ca0964a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking crossterm v0.14.2
[INFO] [stderr]     Checking crossterm v0.17.5
[INFO] [stderr]     Checking backtrace v0.3.41
[INFO] [stderr]     Checking better-panic v0.2.0
[INFO] [stderr]     Checking tui v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tomato v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "3233bb5d219bd6b8caba97c689a7756ef1e0718265887e1bd6785fa4ca0964a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3233bb5d219bd6b8caba97c689a7756ef1e0718265887e1bd6785fa4ca0964a9", kill_on_drop: false }`
[INFO] [stdout] 3233bb5d219bd6b8caba97c689a7756ef1e0718265887e1bd6785fa4ca0964a9