[INFO] updating cached repository https://github.com/BookOwl/kaleidoscope-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c0a5bf9b7e47935cf74cd61cf88af74969dba876
[INFO] checking BookOwl/kaleidoscope-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBookOwl%2Fkaleidoscope-rs" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BookOwl/kaleidoscope-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BookOwl/kaleidoscope-rs
[INFO] finished tweaking git repo https://github.com/BookOwl/kaleidoscope-rs
[INFO] tweaked toml for git repo https://github.com/BookOwl/kaleidoscope-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/BookOwl/kaleidoscope-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 01de338b91173f14acf9f45459c1505e28ec598c4cf408e798f75a1949704c58
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "01de338b91173f14acf9f45459c1505e28ec598c4cf408e798f75a1949704c58"`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]    Compiling llvm-alt v0.5.0 (https://github.com/TomBebb/llvm-rs.git#1aeff086)
[INFO] [stderr]     Checking cbox v0.3.0
[INFO] [stderr]    Compiling llvm-sys v0.3.0 (https://github.com/TomBebbington/llvm-sys.rs#88a4f2da)
[INFO] [stderr]    Compiling kaleidoscope v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `llvm::Attribute::*`
[INFO] [stderr]  --> src/codegen.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use llvm::Attribute::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/jit.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Read, Write, stdin, stdout};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `llvm::Attribute::*`
[INFO] [stderr]  --> src/jit.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use llvm::Attribute::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `llvm::Function`
[INFO] [stderr]  --> src/jit.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use llvm::Function;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `llvm::Attribute::*`
[INFO] [stderr]  --> src/codegen.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use llvm::Attribute::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/jit.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Read, Write, stdin, stdout};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `llvm::Attribute::*`
[INFO] [stderr]  --> src/jit.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use llvm::Attribute::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `llvm::Function`
[INFO] [stderr]  --> src/jit.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use llvm::Function;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]   --> src/jit.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if input.trim_left() == "" {
[INFO] [stderr]    |                  ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/codegen.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let mut func = module.get_function(&function_ast.prototype.name);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/jit.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/jit.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 codegen::generate_prototype(&proto, &module, &context);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stderr]   --> src/jit.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if input.trim_left() == "" {
[INFO] [stderr]    |                  ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `func`
[INFO] [stderr]   --> src/codegen.rs:95:13
[INFO] [stderr]    |
[INFO] [stderr] 95 |         let func = generate_function(&ast, &builder, &module, &ctx).unwrap();
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `func`
[INFO] [stderr]    --> src/codegen.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |         let func = generate_function(&ast, &builder, &module, &ctx).unwrap();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_func`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/codegen.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let mut func = module.get_function(&function_ast.prototype.name);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/jit.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |         stdout().flush();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/jit.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 codegen::generate_prototype(&proto, &module, &context);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.11s
[INFO] running `"docker" "inspect" "01de338b91173f14acf9f45459c1505e28ec598c4cf408e798f75a1949704c58"`
[INFO] running `"docker" "rm" "-f" "01de338b91173f14acf9f45459c1505e28ec598c4cf408e798f75a1949704c58"`
[INFO] [stdout] 01de338b91173f14acf9f45459c1505e28ec598c4cf408e798f75a1949704c58