[INFO] cloning repository https://github.com/bibinthomas123/Compiler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bibinthomas123/Compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibinthomas123%2FCompiler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibinthomas123%2FCompiler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c0754beb60bc630d6c34fcf57e6daff82a1c6d67 [INFO] checking bibinthomas123/Compiler against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibinthomas123%2FCompiler" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bibinthomas123/Compiler 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/bibinthomas123/Compiler [INFO] finished tweaking git repo https://github.com/bibinthomas123/Compiler [INFO] tweaked toml for git repo https://github.com/bibinthomas123/Compiler written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/bibinthomas123/Compiler 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 92722a24a2116c317b672efe3963bf43b54107171fd025686e7f07c1a16b9faa [INFO] running `Command { std: "docker" "start" "-a" "92722a24a2116c317b672efe3963bf43b54107171fd025686e7f07c1a16b9faa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92722a24a2116c317b672efe3963bf43b54107171fd025686e7f07c1a16b9faa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92722a24a2116c317b672efe3963bf43b54107171fd025686e7f07c1a16b9faa", kill_on_drop: false }` [INFO] [stdout] 92722a24a2116c317b672efe3963bf43b54107171fd025686e7f07c1a16b9faa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4895b35b556bdc84f95e7422217566f1136bc53098e7740989f0a562d6e25f04 [INFO] running `Command { std: "docker" "start" "-a" "4895b35b556bdc84f95e7422217566f1136bc53098e7740989f0a562d6e25f04", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.141 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking termion v2.0.1 [INFO] [stderr] Checking fusion-compiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ast` [INFO] [stdout] --> src/ast/mod.rs:797:47 [INFO] [stdout] | [INFO] [stdout] 797 | fn visit_string_expression(&mut self, ast: &mut Ast, string: &StringExpr, _expr: &Expr) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ast` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.29s [INFO] running `Command { std: "docker" "inspect" "4895b35b556bdc84f95e7422217566f1136bc53098e7740989f0a562d6e25f04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4895b35b556bdc84f95e7422217566f1136bc53098e7740989f0a562d6e25f04", kill_on_drop: false }` [INFO] [stdout] 4895b35b556bdc84f95e7422217566f1136bc53098e7740989f0a562d6e25f04 [INFO] checking bibinthomas123/Compiler against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibinthomas123%2FCompiler" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bibinthomas123/Compiler 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/bibinthomas123/Compiler [INFO] finished tweaking git repo https://github.com/bibinthomas123/Compiler [INFO] tweaked toml for git repo https://github.com/bibinthomas123/Compiler written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/bibinthomas123/Compiler 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3334fd69da42fdc7fcd5570c208dfb337101186132f259810a3d5b94c41e883d [INFO] running `Command { std: "docker" "start" "-a" "3334fd69da42fdc7fcd5570c208dfb337101186132f259810a3d5b94c41e883d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3334fd69da42fdc7fcd5570c208dfb337101186132f259810a3d5b94c41e883d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3334fd69da42fdc7fcd5570c208dfb337101186132f259810a3d5b94c41e883d", kill_on_drop: false }` [INFO] [stdout] 3334fd69da42fdc7fcd5570c208dfb337101186132f259810a3d5b94c41e883d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1e0fff7609f33e3fbb5e9ad10df0183495ab41c061d8ee048fd220207c0fdd51 [INFO] running `Command { std: "docker" "start" "-a" "1e0fff7609f33e3fbb5e9ad10df0183495ab41c061d8ee048fd220207c0fdd51", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.141 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking termion v2.0.1 [INFO] [stderr] Checking fusion-compiler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `ast` [INFO] [stdout] --> src/ast/mod.rs:797:47 [INFO] [stdout] | [INFO] [stdout] 797 | fn visit_string_expression(&mut self, ast: &mut Ast, string: &StringExpr, _expr: &Expr) { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ast` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.28s [INFO] running `Command { std: "docker" "inspect" "1e0fff7609f33e3fbb5e9ad10df0183495ab41c061d8ee048fd220207c0fdd51", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e0fff7609f33e3fbb5e9ad10df0183495ab41c061d8ee048fd220207c0fdd51", kill_on_drop: false }` [INFO] [stdout] 1e0fff7609f33e3fbb5e9ad10df0183495ab41c061d8ee048fd220207c0fdd51