[INFO] cloning repository https://github.com/neutron63zf/bf-rust-wasm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neutron63zf/bf-rust-wasm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutron63zf%2Fbf-rust-wasm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutron63zf%2Fbf-rust-wasm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e273f452b3963e76a038e0202d7604b31f9d6c2
[INFO] checking neutron63zf/bf-rust-wasm against try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutron63zf%2Fbf-rust-wasm" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/neutron63zf/bf-rust-wasm
[INFO] finished tweaking git repo https://github.com/neutron63zf/bf-rust-wasm
[INFO] tweaked toml for git repo https://github.com/neutron63zf/bf-rust-wasm written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/neutron63zf/bf-rust-wasm on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/neutron63zf/bf-rust-wasm 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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking neutron63zf/bf-rust-wasm against try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutron63zf%2Fbf-rust-wasm" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/neutron63zf/bf-rust-wasm
[INFO] finished tweaking git repo https://github.com/neutron63zf/bf-rust-wasm
[INFO] tweaked toml for git repo https://github.com/neutron63zf/bf-rust-wasm written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/neutron63zf/bf-rust-wasm on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/neutron63zf/bf-rust-wasm 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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 256c0e8878dab23ef8b6308811f9400a87756a65a341eb89bd74c269633cf57a
[INFO] running `Command { std: "docker" "start" "-a" "256c0e8878dab23ef8b6308811f9400a87756a65a341eb89bd74c269633cf57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "256c0e8878dab23ef8b6308811f9400a87756a65a341eb89bd74c269633cf57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "256c0e8878dab23ef8b6308811f9400a87756a65a341eb89bd74c269633cf57a", kill_on_drop: false }`
[INFO] [stdout] 256c0e8878dab23ef8b6308811f9400a87756a65a341eb89bd74c269633cf57a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d40ec7ce6b1d9175f512f8633466238ee098efa424bed30ca5d1d0857821dd48
[INFO] running `Command { std: "docker" "start" "-a" "d40ec7ce6b1d9175f512f8633466238ee098efa424bed30ca5d1d0857821dd48", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking bf-core v0.1.0 (/opt/rustwide/workdir/bf-core)
[INFO] [stdout] warning: struct `ValueCell` is never constructed
[INFO] [stdout]  --> bf-core/src/core.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct ValueCell(u8);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueCellOperation` is never used
[INFO] [stdout]  --> bf-core/src/core.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum ValueCellOperation {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `value_change` and `is_zero` are never used
[INFO] [stdout]   --> bf-core/src/core.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl ValueCell {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 14 |     fn value_change(&mut self, instruction: ValueCellOperation) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn is_zero(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Memory` is never constructed
[INFO] [stdout]   --> bf-core/src/core.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Memory {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MemoryPointerMove` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum MemoryPointerMove {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_pointer` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Memory {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 50 |     fn move_pointer(&mut self, instruction: MemoryPointerMove) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:70:6
[INFO] [stdout]    |
[INFO] [stdout] 70 | enum Operation {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> bf-core/src/core.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Program {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProgramPointerMove` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:93:6
[INFO] [stdout]    |
[INFO] [stdout] 93 | enum ProgramPointerMove {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_operations` and `move_pointer` are never used
[INFO] [stdout]    --> bf-core/src/core.rs:99:8
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl Program {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  99 |     fn from_operations(operations: Vec<Operation>) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn move_pointer(&mut self, instruction: ProgramPointerMove) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `AnalyzerPointerJump` is never used
[INFO] [stdout]    --> bf-core/src/core.rs:135:6
[INFO] [stdout]     |
[INFO] [stdout] 135 | enum AnalyzerPointerJump {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Analyzer` is never constructed
[INFO] [stdout]    --> bf-core/src/core.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct Analyzer {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `initialize`, `encountered_target_operation`, `encountered_opposite_operation`, and `next` are never used
[INFO] [stdout]    --> bf-core/src/core.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Analyzer {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 149 |     fn initialize(program: Program) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn encountered_target_operation(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn encountered_opposite_operation(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn next(&mut self, cell: &ValueCell) -> Option<Operation> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]    --> bf-core/src/core.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 | struct Interpreter {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]    --> bf-core/src/core.rs:227:8
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl Interpreter {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] 227 |     fn next(&mut self, input: Option<ValueCell>) -> Option<ValueCell> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValueCell` is never constructed
[INFO] [stdout]  --> bf-core/src/core.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct ValueCell(u8);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ValueCellOperation` is never used
[INFO] [stdout]  --> bf-core/src/core.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum ValueCellOperation {
[INFO] [stdout]   |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `value_change` and `is_zero` are never used
[INFO] [stdout]   --> bf-core/src/core.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl ValueCell {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 14 |     fn value_change(&mut self, instruction: ValueCellOperation) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn is_zero(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Memory` is never constructed
[INFO] [stdout]   --> bf-core/src/core.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct Memory {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MemoryPointerMove` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:44:6
[INFO] [stdout]    |
[INFO] [stdout] 44 | enum MemoryPointerMove {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_pointer` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl Memory {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 50 |     fn move_pointer(&mut self, instruction: MemoryPointerMove) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Operation` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:70:6
[INFO] [stdout]    |
[INFO] [stdout] 70 | enum Operation {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> bf-core/src/core.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | struct Program {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ProgramPointerMove` is never used
[INFO] [stdout]   --> bf-core/src/core.rs:93:6
[INFO] [stdout]    |
[INFO] [stdout] 93 | enum ProgramPointerMove {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_operations` and `move_pointer` are never used
[INFO] [stdout]    --> bf-core/src/core.rs:99:8
[INFO] [stdout]     |
[INFO] [stdout]  98 | impl Program {
[INFO] [stdout]     | ------------ associated items in this implementation
[INFO] [stdout]  99 |     fn from_operations(operations: Vec<Operation>) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 115 |     fn move_pointer(&mut self, instruction: ProgramPointerMove) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `AnalyzerPointerJump` is never used
[INFO] [stdout]    --> bf-core/src/core.rs:135:6
[INFO] [stdout]     |
[INFO] [stdout] 135 | enum AnalyzerPointerJump {
[INFO] [stdout]     |      ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Analyzer` is never constructed
[INFO] [stdout]    --> bf-core/src/core.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | struct Analyzer {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `initialize`, `encountered_target_operation`, `encountered_opposite_operation`, and `next` are never used
[INFO] [stdout]    --> bf-core/src/core.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | impl Analyzer {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 149 |     fn initialize(program: Program) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     fn encountered_target_operation(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     fn encountered_opposite_operation(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     fn next(&mut self, cell: &ValueCell) -> Option<Operation> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]    --> bf-core/src/core.rs:221:8
[INFO] [stdout]     |
[INFO] [stdout] 221 | struct Interpreter {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `next` is never used
[INFO] [stdout]    --> bf-core/src/core.rs:227:8
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl Interpreter {
[INFO] [stdout]     | ---------------- method in this implementation
[INFO] [stdout] 227 |     fn next(&mut self, input: Option<ValueCell>) -> Option<ValueCell> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "d40ec7ce6b1d9175f512f8633466238ee098efa424bed30ca5d1d0857821dd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d40ec7ce6b1d9175f512f8633466238ee098efa424bed30ca5d1d0857821dd48", kill_on_drop: false }`
[INFO] [stdout] d40ec7ce6b1d9175f512f8633466238ee098efa424bed30ca5d1d0857821dd48
