[INFO] updating cached repository BookOwl/kaleidoscope-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BookOwl/kaleidoscope-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BookOwl/kaleidoscope-rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/BookOwl/kaleidoscope-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/BookOwl/kaleidoscope-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BookOwl/kaleidoscope-rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/BookOwl/kaleidoscope-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/BookOwl/kaleidoscope-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c0a5bf9b7e47935cf74cd61cf88af74969dba876
[INFO] sha for GitHub repo BookOwl/kaleidoscope-rs: c0a5bf9b7e47935cf74cd61cf88af74969dba876
[INFO] validating manifest of BookOwl/kaleidoscope-rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of BookOwl/kaleidoscope-rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing BookOwl/kaleidoscope-rs
[INFO] finished frobbing BookOwl/kaleidoscope-rs
[INFO] frobbed toml for BookOwl/kaleidoscope-rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/BookOwl/kaleidoscope-rs/Cargo.toml
[INFO] started frobbing BookOwl/kaleidoscope-rs
[INFO] finished frobbing BookOwl/kaleidoscope-rs
[INFO] frobbed toml for BookOwl/kaleidoscope-rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/BookOwl/kaleidoscope-rs/Cargo.toml
[INFO] crate BookOwl/kaleidoscope-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking BookOwl/kaleidoscope-rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/BookOwl/kaleidoscope-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d1b1ad71d906d39839c91f8c19ad2072a54b1bc8e18fb1803de90b4b7f15e163
[INFO] running `"docker" "start" "-a" "d1b1ad71d906d39839c91f8c19ad2072a54b1bc8e18fb1803de90b4b7f15e163"`
[INFO] [stderr]    Compiling llvm-alt v0.5.0 (https://github.com/TomBebb/llvm-rs.git#1aeff086)
[INFO] [stderr]    Compiling llvm-sys v0.3.0 (https://github.com/TomBebbington/llvm-sys.rs#88a4f2da)
[INFO] [stderr]    Compiling kaleidoscope v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking cbox v0.3.0
[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: 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: 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: consider prefixing 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: consider prefixing 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]     Finished dev [unoptimized + debuginfo] target(s) in 6.87s
[INFO] running `"docker" "inspect" "d1b1ad71d906d39839c91f8c19ad2072a54b1bc8e18fb1803de90b4b7f15e163"`
[INFO] running `"docker" "rm" "-f" "d1b1ad71d906d39839c91f8c19ad2072a54b1bc8e18fb1803de90b4b7f15e163"`
[INFO] [stdout] d1b1ad71d906d39839c91f8c19ad2072a54b1bc8e18fb1803de90b4b7f15e163