[INFO] cloning repository https://github.com/Aiden01/vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aiden01/vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e395ce50e9c58ad680b217bf526259193cb9519a
[INFO] testing Aiden01/vm against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiden01%2Fvm" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Aiden01/vm on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Aiden01/vm
[INFO] finished tweaking git repo https://github.com/Aiden01/vm
[INFO] tweaked toml for git repo https://github.com/Aiden01/vm written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Aiden01/vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fad3e9bb09a4c3f9ff1bbb06fe810133aca1f625e5e7ec6ddf396c99c1f24a71
[INFO] running `Command { std: "docker" "start" "-a" "fad3e9bb09a4c3f9ff1bbb06fe810133aca1f625e5e7ec6ddf396c99c1f24a71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fad3e9bb09a4c3f9ff1bbb06fe810133aca1f625e5e7ec6ddf396c99c1f24a71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad3e9bb09a4c3f9ff1bbb06fe810133aca1f625e5e7ec6ddf396c99c1f24a71", kill_on_drop: false }`
[INFO] [stdout] fad3e9bb09a4c3f9ff1bbb06fe810133aca1f625e5e7ec6ddf396c99c1f24a71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b5e200408967f71cbb4832a1b7cfb62f57119c28f85022c9b52bf7a33f1b1d6
[INFO] running `Command { std: "docker" "start" "-a" "0b5e200408967f71cbb4832a1b7cfb62f57119c28f85022c9b52bf7a33f1b1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Jump`
[INFO] [stdout]  --> src/instruction.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Jump(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `JumpIfFalse`
[INFO] [stdout]  --> src/instruction.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     JumpIfFalse(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Store`
[INFO] [stdout]  --> src/instruction.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Store(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Load`
[INFO] [stdout]  --> src/instruction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Load(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BuildList`
[INFO] [stdout]  --> src/instruction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     BuildList(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]   --> src/instruction.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mult`
[INFO] [stdout]   --> src/instruction.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Mult,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Div`
[INFO] [stdout]   --> src/instruction.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Div,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push2`
[INFO] [stdout]   --> src/stack.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn push2(&mut self, data: (T, T)) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ret`
[INFO] [stdout]   --> src/stack.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn ret(&mut self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]  --> src/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     String(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ret`
[INFO] [stdout]   --> src/vm.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn ret(&mut self) -> VmResult<'a, ()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0b5e200408967f71cbb4832a1b7cfb62f57119c28f85022c9b52bf7a33f1b1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5e200408967f71cbb4832a1b7cfb62f57119c28f85022c9b52bf7a33f1b1d6", kill_on_drop: false }`
[INFO] [stdout] 0b5e200408967f71cbb4832a1b7cfb62f57119c28f85022c9b52bf7a33f1b1d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 071e7448b1caa455c30beb667ce9cf23f8d365c950f544a7fde2ad6f3b212d4f
[INFO] running `Command { std: "docker" "start" "-a" "071e7448b1caa455c30beb667ce9cf23f8d365c950f544a7fde2ad6f3b212d4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Jump`
[INFO] [stdout]  --> src/instruction.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Jump(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `JumpIfFalse`
[INFO] [stdout]  --> src/instruction.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     JumpIfFalse(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Store`
[INFO] [stdout]  --> src/instruction.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Store(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Load`
[INFO] [stdout]  --> src/instruction.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Load(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BuildList`
[INFO] [stdout]  --> src/instruction.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     BuildList(usize),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Sub`
[INFO] [stdout]   --> src/instruction.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Mult`
[INFO] [stdout]   --> src/instruction.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Mult,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Div`
[INFO] [stdout]   --> src/instruction.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Div,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push2`
[INFO] [stdout]   --> src/stack.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn push2(&mut self, data: (T, T)) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ret`
[INFO] [stdout]   --> src/stack.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn ret(&mut self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `String`
[INFO] [stdout]  --> src/value.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     String(&'a str),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bool`
[INFO] [stdout]  --> src/value.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Bool(bool),
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ret`
[INFO] [stdout]   --> src/vm.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn ret(&mut self) -> VmResult<'a, ()> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.74s
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "071e7448b1caa455c30beb667ce9cf23f8d365c950f544a7fde2ad6f3b212d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "071e7448b1caa455c30beb667ce9cf23f8d365c950f544a7fde2ad6f3b212d4f", kill_on_drop: false }`
[INFO] [stdout] 071e7448b1caa455c30beb667ce9cf23f8d365c950f544a7fde2ad6f3b212d4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e19a4399fe140d8e3f7e0a5da300065b177d2124f6b550c2667e7886c134b80
[INFO] running `Command { std: "docker" "start" "-a" "1e19a4399fe140d8e3f7e0a5da300065b177d2124f6b550c2667e7886c134b80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `Jump`
[INFO] [stderr]  --> src/instruction.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Jump(usize),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `JumpIfFalse`
[INFO] [stderr]  --> src/instruction.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     JumpIfFalse(usize),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Store`
[INFO] [stderr]  --> src/instruction.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Store(&'a str),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Load`
[INFO] [stderr]  --> src/instruction.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Load(&'a str),
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BuildList`
[INFO] [stderr]  --> src/instruction.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     BuildList(usize),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Sub`
[INFO] [stderr]   --> src/instruction.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     Sub,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Mult`
[INFO] [stderr]   --> src/instruction.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Mult,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Div`
[INFO] [stderr]   --> src/instruction.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     Div,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push2`
[INFO] [stderr]   --> src/stack.rs:40:12
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn push2(&mut self, data: (T, T)) {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ret`
[INFO] [stderr]   --> src/stack.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn ret(&mut self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `String`
[INFO] [stderr]  --> src/value.rs:7:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 7 |     String(&'a str),
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: variant is never constructed: `Bool`
[INFO] [stderr]  --> src/value.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Bool(bool),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `ret`
[INFO] [stderr]   --> src/vm.rs:85:8
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn ret(&mut self) -> VmResult<'a, ()> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `vm` (bin "vm" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.47s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vm-4b722c8199b2e6ce)
[INFO] running `Command { std: "docker" "inspect" "1e19a4399fe140d8e3f7e0a5da300065b177d2124f6b550c2667e7886c134b80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e19a4399fe140d8e3f7e0a5da300065b177d2124f6b550c2667e7886c134b80", kill_on_drop: false }`
[INFO] [stdout] 1e19a4399fe140d8e3f7e0a5da300065b177d2124f6b550c2667e7886c134b80