[INFO] cloning repository https://github.com/Furetur/jex_vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Furetur/jex_vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuretur%2Fjex_vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuretur%2Fjex_vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de356aaff4768dae4f1b3f9e99020cdf8ec34e1b
[INFO] checking Furetur/jex_vm against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuretur%2Fjex_vm" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Furetur/jex_vm on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Furetur/jex_vm
[INFO] finished tweaking git repo https://github.com/Furetur/jex_vm
[INFO] tweaked toml for git repo https://github.com/Furetur/jex_vm written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Furetur/jex_vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b06f6226ba54fd7bedf730dc03798ea2dc8bd3e13eccf09eda3b9272ddbdadf4
[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" "b06f6226ba54fd7bedf730dc03798ea2dc8bd3e13eccf09eda3b9272ddbdadf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b06f6226ba54fd7bedf730dc03798ea2dc8bd3e13eccf09eda3b9272ddbdadf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06f6226ba54fd7bedf730dc03798ea2dc8bd3e13eccf09eda3b9272ddbdadf4", kill_on_drop: false }`
[INFO] [stdout] b06f6226ba54fd7bedf730dc03798ea2dc8bd3e13eccf09eda3b9272ddbdadf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79c9002e6787dc302c1d1fb81b8e19dc1dc61029bbb3ee65f8784e0c27705fa7
[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" "79c9002e6787dc302c1d1fb81b8e19dc1dc61029bbb3ee65f8784e0c27705fa7", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scanrs v0.2.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking extendable_vm v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking jex_vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `UnaryOperatorNotDefined`
[INFO] [stdout]  --> src/instructions/objects.rs:2:69
[INFO] [stdout]   |
[INFO] [stdout] 2 |     ExpectedInstructionArgument, FieldNotFound, NotObjectException, UnaryOperatorNotDefined,
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cell`
[INFO] [stdout]  --> src/values/values.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::{Cell, RefCell};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UnaryOperatorNotDefined`
[INFO] [stdout]  --> src/instructions/objects.rs:2:69
[INFO] [stdout]   |
[INFO] [stdout] 2 |     ExpectedInstructionArgument, FieldNotFound, NotObjectException, UnaryOperatorNotDefined,
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cell`
[INFO] [stdout]  --> src/values/values.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::{Cell, RefCell};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*machine` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/instructions/jumps.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 99  |     let function = machine
[INFO] [stdout]     |                    ------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 111 |             machine.push_frame(*chunk_id, name.clone(), chunk_start_slot);
[INFO] [stdout]     |             ^^^^^^^            --------- immutable borrow later used here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*machine` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/instructions/jumps.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 99  |     let function = machine
[INFO] [stdout]     |                    ------- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 111 |             machine.push_frame(*chunk_id, name.clone(), chunk_start_slot);
[INFO] [stdout]     |             ^^^^^^^            --------- immutable borrow later used here
[INFO] [stdout]     |             |
[INFO] [stdout]     |             mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_instructions`
[INFO] [stdout]   --> tests/run/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn run_instructions(instructions: Vec<TestInstruction>) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/run/code.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(op_code: JexOpCode) -> TestInstruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_instructions`
[INFO] [stdout]   --> tests/run/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn run_instructions(instructions: Vec<TestInstruction>) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_instructions`
[INFO] [stdout]   --> tests/run/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn run_instructions(instructions: Vec<TestInstruction>) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> tests/run/code.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(op_code: JexOpCode) -> TestInstruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_instructions`
[INFO] [stdout]   --> tests/run/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn run_instructions(instructions: Vec<TestInstruction>) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_chunk`
[INFO] [stdout]   --> tests/run/mod.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn run_chunk(chunk: TestChunk) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run_instructions`
[INFO] [stdout]   --> tests/run/mod.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn run_instructions(instructions: Vec<TestInstruction>) -> Option<JexValue> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.41s
[INFO] running `Command { std: "docker" "inspect" "79c9002e6787dc302c1d1fb81b8e19dc1dc61029bbb3ee65f8784e0c27705fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79c9002e6787dc302c1d1fb81b8e19dc1dc61029bbb3ee65f8784e0c27705fa7", kill_on_drop: false }`
[INFO] [stdout] 79c9002e6787dc302c1d1fb81b8e19dc1dc61029bbb3ee65f8784e0c27705fa7