[INFO] cloning repository https://github.com/CyberCat3/CahnLang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CyberCat3/CahnLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberCat3%2FCahnLang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberCat3%2FCahnLang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 233044660e3325a707d7c4e4e3214fc8e565711b [INFO] checking CyberCat3/CahnLang against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberCat3%2FCahnLang" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CyberCat3/CahnLang 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/CyberCat3/CahnLang [INFO] finished tweaking git repo https://github.com/CyberCat3/CahnLang [INFO] tweaked toml for git repo https://github.com/CyberCat3/CahnLang written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/CyberCat3/CahnLang 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded once_cell v1.7.0 [INFO] [stderr] Downloaded intmap v0.7.0 [INFO] [stderr] Downloaded ahash v0.7.2 [INFO] [stderr] Downloaded itertools v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 100f79f7d898ec767a5ebfc8bae1908ab15fbace86cca2c1edf7a47972628fa8 [INFO] running `Command { std: "docker" "start" "-a" "100f79f7d898ec767a5ebfc8bae1908ab15fbace86cca2c1edf7a47972628fa8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "100f79f7d898ec767a5ebfc8bae1908ab15fbace86cca2c1edf7a47972628fa8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "100f79f7d898ec767a5ebfc8bae1908ab15fbace86cca2c1edf7a47972628fa8", kill_on_drop: false }` [INFO] [stdout] 100f79f7d898ec767a5ebfc8bae1908ab15fbace86cca2c1edf7a47972628fa8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] aaa6cc6e90d05d14cb3ada283344d3e3fcee8d12b0a1051a103198dcaa5b81f3 [INFO] running `Command { std: "docker" "start" "-a" "aaa6cc6e90d05d14cb3ada283344d3e3fcee8d12b0a1051a103198dcaa5b81f3", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking once_cell v1.7.0 [INFO] [stderr] Checking intmap v0.7.0 [INFO] [stderr] Checking bumpalo v3.6.1 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling ahash v0.7.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking cahn_lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/runtime/value.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/runtime/value.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_local` is never used [INFO] [stdout] --> src/compiler/codegen/codegenerator.rs:142:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl<'a> CodeGenerator<'a> { [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 142 | fn get_local(&self, index: usize) -> Option<&Local> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read_u64`, `assert_function`, and `assert_return_address` are never used [INFO] [stdout] --> src/runtime/vm.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl<'a> VM<'a> { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn read_u64(&mut self) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | fn assert_function<'b>(&'b self, val: Value) -> &'a CahnFunction { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn assert_return_address(&self, val: Value) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_local` is never used [INFO] [stdout] --> src/compiler/codegen/codegenerator.rs:142:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl<'a> CodeGenerator<'a> { [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 142 | fn get_local(&self, index: usize) -> Option<&Local> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read_u64`, `assert_function`, and `assert_return_address` are never used [INFO] [stdout] --> src/runtime/vm.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl<'a> VM<'a> { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn read_u64(&mut self) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | fn assert_function<'b>(&'b self, val: Value) -> &'a CahnFunction { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn assert_return_address(&self, val: Value) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.64s [INFO] running `Command { std: "docker" "inspect" "aaa6cc6e90d05d14cb3ada283344d3e3fcee8d12b0a1051a103198dcaa5b81f3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aaa6cc6e90d05d14cb3ada283344d3e3fcee8d12b0a1051a103198dcaa5b81f3", kill_on_drop: false }` [INFO] [stdout] aaa6cc6e90d05d14cb3ada283344d3e3fcee8d12b0a1051a103198dcaa5b81f3 [INFO] checking CyberCat3/CahnLang against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCyberCat3%2FCahnLang" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CyberCat3/CahnLang 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/CyberCat3/CahnLang [INFO] finished tweaking git repo https://github.com/CyberCat3/CahnLang [INFO] tweaked toml for git repo https://github.com/CyberCat3/CahnLang written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/CyberCat3/CahnLang 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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9ea5f41ebb7babb86a019a8ab50cb7a17e5f7f43846b75e8b7b889de05a38b3d [INFO] running `Command { std: "docker" "start" "-a" "9ea5f41ebb7babb86a019a8ab50cb7a17e5f7f43846b75e8b7b889de05a38b3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ea5f41ebb7babb86a019a8ab50cb7a17e5f7f43846b75e8b7b889de05a38b3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ea5f41ebb7babb86a019a8ab50cb7a17e5f7f43846b75e8b7b889de05a38b3d", kill_on_drop: false }` [INFO] [stdout] 9ea5f41ebb7babb86a019a8ab50cb7a17e5f7f43846b75e8b7b889de05a38b3d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 30ef2195f85a041ce1b592f7dea9ae2cd462414594ff399087cfd9e8240318c2 [INFO] running `Command { std: "docker" "start" "-a" "30ef2195f85a041ce1b592f7dea9ae2cd462414594ff399087cfd9e8240318c2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking once_cell v1.7.0 [INFO] [stderr] Checking bumpalo v3.6.1 [INFO] [stderr] Checking intmap v0.7.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling ahash v0.7.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking cahn_lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/runtime/value.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Write` [INFO] [stdout] --> src/runtime/value.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{self, Write}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_local` is never used [INFO] [stdout] --> src/compiler/codegen/codegenerator.rs:142:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl<'a> CodeGenerator<'a> { [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 142 | fn get_local(&self, index: usize) -> Option<&Local> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read_u64`, `assert_function`, and `assert_return_address` are never used [INFO] [stdout] --> src/runtime/vm.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl<'a> VM<'a> { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn read_u64(&mut self) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | fn assert_function<'b>(&'b self, val: Value) -> &'a CahnFunction { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn assert_return_address(&self, val: Value) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get_local` is never used [INFO] [stdout] --> src/compiler/codegen/codegenerator.rs:142:8 [INFO] [stdout] | [INFO] [stdout] 54 | impl<'a> CodeGenerator<'a> { [INFO] [stdout] | -------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 142 | fn get_local(&self, index: usize) -> Option<&Local> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `read_u64`, `assert_function`, and `assert_return_address` are never used [INFO] [stdout] --> src/runtime/vm.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 41 | impl<'a> VM<'a> { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn read_u64(&mut self) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 145 | fn assert_function<'b>(&'b self, val: Value) -> &'a CahnFunction { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 155 | fn assert_return_address(&self, val: Value) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.28s [INFO] running `Command { std: "docker" "inspect" "30ef2195f85a041ce1b592f7dea9ae2cd462414594ff399087cfd9e8240318c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30ef2195f85a041ce1b592f7dea9ae2cd462414594ff399087cfd9e8240318c2", kill_on_drop: false }` [INFO] [stdout] 30ef2195f85a041ce1b592f7dea9ae2cd462414594ff399087cfd9e8240318c2