[INFO] fetching crate jcompiler 0.1.0...
[INFO] checking jcompiler-0.1.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate jcompiler 0.1.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jcompiler 0.1.0
[INFO] finished tweaking crates.io crate jcompiler 0.1.0
[INFO] tweaked toml for crates.io crate jcompiler 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f70b252180cdcc97f583c4f15b325ef61d5ec38c620980cb1e3caf4aa6f4a78b
[INFO] running `Command { std: "docker" "start" "-a" "f70b252180cdcc97f583c4f15b325ef61d5ec38c620980cb1e3caf4aa6f4a78b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70b252180cdcc97f583c4f15b325ef61d5ec38c620980cb1e3caf4aa6f4a78b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70b252180cdcc97f583c4f15b325ef61d5ec38c620980cb1e3caf4aa6f4a78b", kill_on_drop: false }`
[INFO] [stdout] f70b252180cdcc97f583c4f15b325ef61d5ec38c620980cb1e3caf4aa6f4a78b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 502e60fdcca2883ff860ab9f4b3f9ef1d97e85d0d9caa58f56940fb0c6c85a75
[INFO] running `Command { std: "docker" "start" "-a" "502e60fdcca2883ff860ab9f4b3f9ef1d97e85d0d9caa58f56940fb0c6c85a75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.3.2
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling llvm-sys v70.4.0
[INFO] [stderr]     Checking jcompiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `init_bb`
[INFO] [stdout]   --> src/lib/llvm.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn);
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `init_bb`
[INFO] [stdout]   --> src/lib/llvm.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let (init_bb, mut bb) = add_initial_bbs(&mut module, main_fn);
[INFO] [stdout]    |          ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_init_bb`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LLVM_TRUE`
[INFO] [stdout]   --> src/lib/llvm.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `int8`
[INFO] [stdout]    --> src/lib/llvm.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef {
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_static_outputs`
[INFO] [stdout]    --> src/lib/llvm.rs:439:4
[INFO] [stdout]     |
[INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LLVM_TRUE`
[INFO] [stdout]   --> src/lib/llvm.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const LLVM_TRUE: LLVMBool = 1;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `int8`
[INFO] [stdout]    --> src/lib/llvm.rs:270:11
[INFO] [stdout]     |
[INFO] [stdout] 270 | unsafe fn int8(val: c_ulonglong) -> LLVMValueRef {
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compile_static_outputs`
[INFO] [stdout]    --> src/lib/llvm.rs:439:4
[INFO] [stdout]     |
[INFO] [stdout] 439 | fn compile_static_outputs(module: &mut Module, bb: LLVMBasicBlockRef, outputs: &[i8]) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let object_file = try!(convert_io_error(NamedTempFile::new()));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:74:23
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let object_file = try!(convert_io_error(NamedTempFile::new()));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.12s
[INFO] running `Command { std: "docker" "inspect" "502e60fdcca2883ff860ab9f4b3f9ef1d97e85d0d9caa58f56940fb0c6c85a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "502e60fdcca2883ff860ab9f4b3f9ef1d97e85d0d9caa58f56940fb0c6c85a75", kill_on_drop: false }`
[INFO] [stdout] 502e60fdcca2883ff860ab9f4b3f9ef1d97e85d0d9caa58f56940fb0c6c85a75