[INFO] fetching crate jcompiler 0.1.0...
[INFO] checking jcompiler-0.1.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jcompiler 0.1.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded llvm-sys v70.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71721b3e116f9ed1e855333a4bccb9bf90334ab924b67d61eed2655c317d7744
[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" "71721b3e116f9ed1e855333a4bccb9bf90334ab924b67d61eed2655c317d7744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71721b3e116f9ed1e855333a4bccb9bf90334ab924b67d61eed2655c317d7744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71721b3e116f9ed1e855333a4bccb9bf90334ab924b67d61eed2655c317d7744", kill_on_drop: false }`
[INFO] [stdout] 71721b3e116f9ed1e855333a4bccb9bf90334ab924b67d61eed2655c317d7744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86654d57eabc055fec145ea672ac9435640e001f0d52517a245142363b44f2ce
[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" "86654d57eabc055fec145ea672ac9435640e001f0d52517a245142363b44f2ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling cc v1.0.67
[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]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling quote v1.0.9
[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]    Compiling regex v1.4.5
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking quickcheck v0.3.2
[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: 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: `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: 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 23.52s
[INFO] running `Command { std: "docker" "inspect" "86654d57eabc055fec145ea672ac9435640e001f0d52517a245142363b44f2ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86654d57eabc055fec145ea672ac9435640e001f0d52517a245142363b44f2ce", kill_on_drop: false }`
[INFO] [stdout] 86654d57eabc055fec145ea672ac9435640e001f0d52517a245142363b44f2ce