[INFO] fetching crate jit_rs 0.1.3...
[INFO] testing jit_rs-0.1.3 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate jit_rs 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate jit_rs 0.1.3
[INFO] finished tweaking crates.io crate jit_rs 0.1.3
[INFO] tweaked toml for crates.io crate jit_rs 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jit_rs 0.1.3 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jit_rs 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60da69665fe9743b225d1efe8c9aadc9b447be17379f72f76e8e10575f5abfe7
[INFO] running `Command { std: "docker" "start" "-a" "60da69665fe9743b225d1efe8c9aadc9b447be17379f72f76e8e10575f5abfe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60da69665fe9743b225d1efe8c9aadc9b447be17379f72f76e8e10575f5abfe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60da69665fe9743b225d1efe8c9aadc9b447be17379f72f76e8e10575f5abfe7", kill_on_drop: false }`
[INFO] [stdout] 60da69665fe9743b225d1efe8c9aadc9b447be17379f72f76e8e10575f5abfe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b58ec3d342d3b5ba70cd229d79dd4d6b2615b9446b2e68f6aac48284adf943a5
[INFO] running `Command { std: "docker" "start" "-a" "b58ec3d342d3b5ba70cd229d79dd4d6b2615b9446b2e68f6aac48284adf943a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling windows_gen v0.13.0
[INFO] [stderr]    Compiling const-sha1 v0.2.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling windows_macros v0.13.0
[INFO] [stderr]    Compiling windows v0.13.0
[INFO] [stderr]    Compiling jit_rs-sys v0.1.3
[INFO] [stderr]    Compiling jit_rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `flush_instruction_cache` in module `os::agnostic`
[INFO] [stdout]   --> src/lib.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _result = os::agnostic::flush_instruction_cache(data as *mut c_void, size);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^ not found in `os::agnostic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ptr`
[INFO] [stdout]  --> src/os/agnostic.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ptr;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size`
[INFO] [stdout]   --> src/os/agnostic.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn allocate_executable_buffer(size: usize) -> *mut c_void {
[INFO] [stdout]    |                                       ^^^^ help: if this is intentional, prefix it with an underscore: `_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/os/agnostic.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub unsafe fn deallocate_buffer(data: *mut c_void, _size: usize) -> Result<(), ()> {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jit_rs` (lib) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b58ec3d342d3b5ba70cd229d79dd4d6b2615b9446b2e68f6aac48284adf943a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58ec3d342d3b5ba70cd229d79dd4d6b2615b9446b2e68f6aac48284adf943a5", kill_on_drop: false }`
[INFO] [stdout] b58ec3d342d3b5ba70cd229d79dd4d6b2615b9446b2e68f6aac48284adf943a5