[INFO] cloning repository https://github.com/sty00a4-code/novo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sty00a4-code/novo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsty00a4-code%2Fnovo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsty00a4-code%2Fnovo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5b74ea0ca7c469cd7500b30a58e5cebe4cfb17e
[INFO] checking sty00a4-code/novo against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsty00a4-code%2Fnovo" "/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/sty00a4-code/novo 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/sty00a4-code/novo
[INFO] finished tweaking git repo https://github.com/sty00a4-code/novo
[INFO] tweaked toml for git repo https://github.com/sty00a4-code/novo written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sty00a4-code/novo 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-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] 87276a87fe3a8d2efc7bdcb55f8b0a7fa635948c12a8eb3eb216ba80372f4491
[INFO] running `Command { std: "docker" "start" "-a" "87276a87fe3a8d2efc7bdcb55f8b0a7fa635948c12a8eb3eb216ba80372f4491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87276a87fe3a8d2efc7bdcb55f8b0a7fa635948c12a8eb3eb216ba80372f4491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87276a87fe3a8d2efc7bdcb55f8b0a7fa635948c12a8eb3eb216ba80372f4491", kill_on_drop: false }`
[INFO] [stdout] 87276a87fe3a8d2efc7bdcb55f8b0a7fa635948c12a8eb3eb216ba80372f4491
[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] 614dbb17bf278a4637f5f129e039ee0b52cbadd0649fad7fe0acedd264d1442a
[INFO] running `Command { std: "docker" "start" "-a" "614dbb17bf278a4637f5f129e039ee0b52cbadd0649fad7fe0acedd264d1442a", kill_on_drop: false }`
[INFO] [stderr]     Checking novo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]  --> src/compiler/compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::*
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]  --> src/compiler/compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::*
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "614dbb17bf278a4637f5f129e039ee0b52cbadd0649fad7fe0acedd264d1442a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "614dbb17bf278a4637f5f129e039ee0b52cbadd0649fad7fe0acedd264d1442a", kill_on_drop: false }`
[INFO] [stdout] 614dbb17bf278a4637f5f129e039ee0b52cbadd0649fad7fe0acedd264d1442a
[INFO] checking sty00a4-code/novo against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsty00a4-code%2Fnovo" "/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/sty00a4-code/novo 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/sty00a4-code/novo
[INFO] finished tweaking git repo https://github.com/sty00a4-code/novo
[INFO] tweaked toml for git repo https://github.com/sty00a4-code/novo written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sty00a4-code/novo 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-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] 3ea63579df9d4f39d3e6f7c2097f5ec2727481bab312d96a12a3c6b713b894e4
[INFO] running `Command { std: "docker" "start" "-a" "3ea63579df9d4f39d3e6f7c2097f5ec2727481bab312d96a12a3c6b713b894e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ea63579df9d4f39d3e6f7c2097f5ec2727481bab312d96a12a3c6b713b894e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea63579df9d4f39d3e6f7c2097f5ec2727481bab312d96a12a3c6b713b894e4", kill_on_drop: false }`
[INFO] [stdout] 3ea63579df9d4f39d3e6f7c2097f5ec2727481bab312d96a12a3c6b713b894e4
[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] 617baeb04abc3795b0edaad8be8108c23860ca857deb79398b79f5038e2a2bbc
[INFO] running `Command { std: "docker" "start" "-a" "617baeb04abc3795b0edaad8be8108c23860ca857deb79398b79f5038e2a2bbc", kill_on_drop: false }`
[INFO] [stderr]     Checking novo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]  --> src/compiler/compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::*
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]  --> src/compiler/compiler.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     ast::*
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "617baeb04abc3795b0edaad8be8108c23860ca857deb79398b79f5038e2a2bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "617baeb04abc3795b0edaad8be8108c23860ca857deb79398b79f5038e2a2bbc", kill_on_drop: false }`
[INFO] [stdout] 617baeb04abc3795b0edaad8be8108c23860ca857deb79398b79f5038e2a2bbc