[INFO] cloning repository https://github.com/Phosphorus15/ruda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Phosphorus15/ruda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhosphorus15%2Fruda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhosphorus15%2Fruda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1634aa427e15c4eec03770c8508690618f5b882e
[INFO] checking Phosphorus15/ruda against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhosphorus15%2Fruda" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Phosphorus15/ruda on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Phosphorus15/ruda
[INFO] finished tweaking git repo https://github.com/Phosphorus15/ruda
[INFO] tweaked toml for git repo https://github.com/Phosphorus15/ruda written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Phosphorus15/ruda already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2b904de6d574ef83daa5e92d8c0220a057dcb985a27d742e983d9659e52c673
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c2b904de6d574ef83daa5e92d8c0220a057dcb985a27d742e983d9659e52c673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2b904de6d574ef83daa5e92d8c0220a057dcb985a27d742e983d9659e52c673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b904de6d574ef83daa5e92d8c0220a057dcb985a27d742e983d9659e52c673", kill_on_drop: false }`
[INFO] [stdout] c2b904de6d574ef83daa5e92d8c0220a057dcb985a27d742e983d9659e52c673
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e41f8ee86896a0fd2f3ed6c3d0a7ccbe8959390b75ac12b4290a5f8ab326f57d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e41f8ee86896a0fd2f3ed6c3d0a7ccbe8959390b75ac12b4290a5f8ab326f57d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling semver-parser v0.6.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling semver v0.4.1
[INFO] [stderr]    Compiling llvm-sys v38.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking serde v1.0.101
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking ruda v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `llvm::link_time_optimizer::llvm_create_optimizer`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use llvm::link_time_optimizer::llvm_create_optimizer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `llvm::link_time_optimizer::llvm_create_optimizer`
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use llvm::link_time_optimizer::llvm_create_optimizer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/main.rs:155:36
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let mut ptr: *mut c_char = std::mem::uninitialized();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/main.rs:155:36
[INFO] [stdout]     |
[INFO] [stdout] 155 |         let mut ptr: *mut c_char = std::mem::uninitialized();
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:191:24
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn walk_if_cond_branch(body: RuleList) -> TypedExpr {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/llvm_gen.rs:181:63
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 let func = selected.into_iter().take(1).find(|v| true).unwrap_or_else(|| panic!("Identifier not in scope: `{}`", ident));
[INFO] [stdout]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `target_ref` is never read
[INFO] [stdout]    --> src/llvm_gen.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 let mut target_ref: LLVMValueRef = null_mut();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret_val` is never read
[INFO] [stdout]    --> src/llvm_gen.rs:158:21
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 let mut ret_val = TyName::Unit;
[INFO] [stdout]     |                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut file_list = files.iter().map(|f| std::path::PathBuf::from(&f[..]));
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]    --> src/parser.rs:191:24
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn walk_if_cond_branch(body: RuleList) -> TypedExpr {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_body`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/llvm_gen.rs:181:63
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 let func = selected.into_iter().take(1).find(|v| true).unwrap_or_else(|| panic!("Identifier not in scope: `{}`", ident));
[INFO] [stdout]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `target_ref` is never read
[INFO] [stdout]    --> src/llvm_gen.rs:157:21
[INFO] [stdout]     |
[INFO] [stdout] 157 |                 let mut target_ref: LLVMValueRef = null_mut();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ret_val` is never read
[INFO] [stdout]    --> src/llvm_gen.rs:158:21
[INFO] [stdout]     |
[INFO] [stdout] 158 |                 let mut ret_val = TyName::Unit;
[INFO] [stdout]     |                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut file_list = files.iter().map(|f| std::path::PathBuf::from(&f[..]));
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/llvm_gen.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut params = typed_params.into_iter().map(|v| v.0).collect::<Vec<_>>();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pool.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut this = unsafe {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/llvm_gen.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 209 |     let mut params = typed_params.into_iter().map(|v| v.0).collect::<Vec<_>>();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/pool.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let mut this = unsafe {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.75s
[INFO] running `Command { std: "docker" "inspect" "e41f8ee86896a0fd2f3ed6c3d0a7ccbe8959390b75ac12b4290a5f8ab326f57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41f8ee86896a0fd2f3ed6c3d0a7ccbe8959390b75ac12b4290a5f8ab326f57d", kill_on_drop: false }`
[INFO] [stdout] e41f8ee86896a0fd2f3ed6c3d0a7ccbe8959390b75ac12b4290a5f8ab326f57d