[INFO] cloning repository https://github.com/Applimu/Metallic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Applimu/Metallic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FApplimu%2FMetallic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FApplimu%2FMetallic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26924c5e5ca0d99c6e7ad3d410d4c616b5f41f22
[INFO] testing Applimu/Metallic against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FApplimu%2FMetallic" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Applimu/Metallic
[INFO] finished tweaking git repo https://github.com/Applimu/Metallic
[INFO] tweaked toml for git repo https://github.com/Applimu/Metallic written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Applimu/Metallic on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Applimu/Metallic 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f572fdfdd9259dabc0dcb549be7cb2c85eb9a8f23dae3c816e73926330b7117
[INFO] running `Command { std: "docker" "start" "-a" "8f572fdfdd9259dabc0dcb549be7cb2c85eb9a8f23dae3c816e73926330b7117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f572fdfdd9259dabc0dcb549be7cb2c85eb9a8f23dae3c816e73926330b7117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f572fdfdd9259dabc0dcb549be7cb2c85eb9a8f23dae3c816e73926330b7117", kill_on_drop: false }`
[INFO] [stdout] 8f572fdfdd9259dabc0dcb549be7cb2c85eb9a8f23dae3c816e73926330b7117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6af9fd088a8e70509b37c202ab5fc10ecc45dcc61e1b23b980b34c85a7a164e9
[INFO] running `Command { std: "docker" "start" "-a" "6af9fd088a8e70509b37c202ab5fc10ecc45dcc61e1b23b980b34c85a7a164e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling metallic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/runtime.rs:212:49
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   let t = args[0].get_as_type()?;
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/runtime.rs:216:49
[INFO] [stdout]     |
[INFO] [stdout] 216 | ...                   let t = args[0].get_as_type()?;
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/runtime.rs:313:56
[INFO] [stdout]     |
[INFO] [stdout] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stdout]     |                                                        ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/runtime.rs:313:59
[INFO] [stdout]     |
[INFO] [stdout] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branches`
[INFO] [stdout]    --> src/runtime.rs:426:17
[INFO] [stdout]     |
[INFO] [stdout] 426 |                 branches,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `branches: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |             Igetln => FunctionType(
[INFO] [stdout]     |             ------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 174 |             Igetln => FunctionType(
[INFO] [stdout]     |             ^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stdout]     |             -------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 178 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stdout]     |             ^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_io_action` is never used
[INFO] [stdout]   --> src/runtime.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn run_io_action(ctx: &mut Context, action: &IOAction) -> Result<(), RuntimeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_as_pair` is never used
[INFO] [stdout]    --> src/runtime.rs:293:8
[INFO] [stdout]     |
[INFO] [stdout] 241 | impl Val {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn get_as_pair(&self) -> Result<(Rc<Val>, Rc<Val>), RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_val` is never used
[INFO] [stdout]    --> src/runtime.rs:447:8
[INFO] [stdout]     |
[INFO] [stdout] 335 | impl<'a> Context<'a> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 447 |     fn display_val(&self, val: &Val) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interpret_program` is never used
[INFO] [stdout]    --> src/runtime.rs:545:8
[INFO] [stdout]     |
[INFO] [stdout] 545 | pub fn interpret_program(prog: &Program) -> Vec<Result<Rc<Val>, RuntimeError>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.47s
[INFO] running `Command { std: "docker" "inspect" "6af9fd088a8e70509b37c202ab5fc10ecc45dcc61e1b23b980b34c85a7a164e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af9fd088a8e70509b37c202ab5fc10ecc45dcc61e1b23b980b34c85a7a164e9", kill_on_drop: false }`
[INFO] [stdout] 6af9fd088a8e70509b37c202ab5fc10ecc45dcc61e1b23b980b34c85a7a164e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25f36c56d0e2ad4b7a16e743d36f146c5baf3ef32901b37a859fb9fc08ecb750
[INFO] running `Command { std: "docker" "start" "-a" "25f36c56d0e2ad4b7a16e743d36f146c5baf3ef32901b37a859fb9fc08ecb750", kill_on_drop: false }`
[INFO] [stderr]    Compiling metallic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/runtime.rs:212:49
[INFO] [stdout]     |
[INFO] [stdout] 212 | ...                   let t = args[0].get_as_type()?;
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/runtime.rs:216:49
[INFO] [stdout]     |
[INFO] [stdout] 216 | ...                   let t = args[0].get_as_type()?;
[INFO] [stdout]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/runtime.rs:313:56
[INFO] [stdout]     |
[INFO] [stdout] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stdout]     |                                                        ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/runtime.rs:313:59
[INFO] [stdout]     |
[INFO] [stdout] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stdout]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `branches`
[INFO] [stdout]    --> src/runtime.rs:426:17
[INFO] [stdout]     |
[INFO] [stdout] 426 |                 branches,
[INFO] [stdout]     |                 ^^^^^^^^ help: try ignoring the field: `branches: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:174:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |             Igetln => FunctionType(
[INFO] [stdout]     |             ------ matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 174 |             Igetln => FunctionType(
[INFO] [stdout]     |             ^^^^^^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/main.rs:178:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stdout]     |             -------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 178 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stdout]     |             ^^^^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_io_action` is never used
[INFO] [stdout]   --> src/runtime.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn run_io_action(ctx: &mut Context, action: &IOAction) -> Result<(), RuntimeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_as_pair` is never used
[INFO] [stdout]    --> src/runtime.rs:293:8
[INFO] [stdout]     |
[INFO] [stdout] 241 | impl Val {
[INFO] [stdout]     | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn get_as_pair(&self) -> Result<(Rc<Val>, Rc<Val>), RuntimeError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `display_val` is never used
[INFO] [stdout]    --> src/runtime.rs:447:8
[INFO] [stdout]     |
[INFO] [stdout] 335 | impl<'a> Context<'a> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 447 |     fn display_val(&self, val: &Val) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.41s
[INFO] running `Command { std: "docker" "inspect" "25f36c56d0e2ad4b7a16e743d36f146c5baf3ef32901b37a859fb9fc08ecb750", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f36c56d0e2ad4b7a16e743d36f146c5baf3ef32901b37a859fb9fc08ecb750", kill_on_drop: false }`
[INFO] [stdout] 25f36c56d0e2ad4b7a16e743d36f146c5baf3ef32901b37a859fb9fc08ecb750
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ededcc2092310cde55caf135162485c53b43f14c9bdad3d3dd0f2741117101a9
[INFO] running `Command { std: "docker" "start" "-a" "ededcc2092310cde55caf135162485c53b43f14c9bdad3d3dd0f2741117101a9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/runtime.rs:212:49
[INFO] [stderr]     |
[INFO] [stderr] 212 | ...                   let t = args[0].get_as_type()?;
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/runtime.rs:216:49
[INFO] [stderr]     |
[INFO] [stderr] 216 | ...                   let t = args[0].get_as_type()?;
[INFO] [stderr]     |                           ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/runtime.rs:313:56
[INFO] [stderr]     |
[INFO] [stderr] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stderr]     |                                                        ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]    --> src/runtime.rs:313:59
[INFO] [stderr]     |
[INFO] [stderr] 313 |             Val::Function(Function::PartialApplication(f, args)) => {
[INFO] [stderr]     |                                                           ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `branches`
[INFO] [stderr]    --> src/runtime.rs:426:17
[INFO] [stderr]     |
[INFO] [stderr] 426 |                 branches,
[INFO] [stderr]     |                 ^^^^^^^^ help: try ignoring the field: `branches: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:174:13
[INFO] [stderr]     |
[INFO] [stderr] 160 |             Igetln => FunctionType(
[INFO] [stderr]     |             ------ matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 174 |             Igetln => FunctionType(
[INFO] [stderr]     |             ^^^^^^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:178:13
[INFO] [stderr]     |
[INFO] [stderr] 164 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stderr]     |             -------- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 178 |             Iprintln => FunctionType(Rc::new(String), Rc::new(IO)),
[INFO] [stderr]     |             ^^^^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_io_action` is never used
[INFO] [stderr]   --> src/runtime.rs:39:4
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn run_io_action(ctx: &mut Context, action: &IOAction) -> Result<(), RuntimeError> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_as_pair` is never used
[INFO] [stderr]    --> src/runtime.rs:293:8
[INFO] [stderr]     |
[INFO] [stderr] 241 | impl Val {
[INFO] [stderr]     | -------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 293 |     fn get_as_pair(&self) -> Result<(Rc<Val>, Rc<Val>), RuntimeError> {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `display_val` is never used
[INFO] [stderr]    --> src/runtime.rs:447:8
[INFO] [stderr]     |
[INFO] [stderr] 335 | impl<'a> Context<'a> {
[INFO] [stderr]     | -------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 447 |     fn display_val(&self, val: &Val) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `metallic` (bin "metallic" test) generated 10 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/metallic-ecad0d555fb51394)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::test_interpret6 ... ok
[INFO] [stdout] test tests::test_interpret4 ... ok
[INFO] [stdout] test tests::test_interpret5 ... ok
[INFO] [stdout] test tests::test_parse01 ... ok
[INFO] [stdout] test tests::test_interpret2 ... ok
[INFO] [stdout] test tests::test_interpret3 ... ok
[INFO] [stdout] test tests::test_interpret1 ... ok
[INFO] [stdout] test tests::test_parse02 ... ok
[INFO] [stdout] test tests::test_parse03 ... ok
[INFO] [stdout] test tests::test_parse06 ... ok
[INFO] [stdout] test tests::test_parse07 ... ok
[INFO] [stdout] test tests::test_parse04 ... ok
[INFO] [stdout] test tests::test_parse10 ... ok
[INFO] [stdout] test tests::test_parse12 ... ok
[INFO] [stdout] test tests::test_parse14 ... ok
[INFO] [stdout] test tests::test_tokenize1 ... ok
[INFO] [stdout] test tests::test_tokenize2 ... ok
[INFO] [stdout] test tests::test_tokenize4 ... ok
[INFO] [stdout] test tests::test_tokenize3 ... ok
[INFO] [stdout] test tests::test_tokenize6 ... ok
[INFO] [stdout] test tests::test_tokenize7 ... ok
[INFO] [stdout] test tests::test_tokenize_number ... ok
[INFO] [stdout] test tests::test_parse09 ... ok
[INFO] [stdout] test tests::test_parse08 ... ok
[INFO] [stdout] test tests::test_parse13 ... ok
[INFO] [stdout] test tests::test_tokenize8 ... ok
[INFO] [stdout] test tests::test_parse05 ... ok
[INFO] [stdout] test tests::test_tokenize5 ... ok
[INFO] [stdout] test tests::test_parse11 ... ok
[INFO] [stdout] test tests::test_parse15 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ededcc2092310cde55caf135162485c53b43f14c9bdad3d3dd0f2741117101a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ededcc2092310cde55caf135162485c53b43f14c9bdad3d3dd0f2741117101a9", kill_on_drop: false }`
[INFO] [stdout] ededcc2092310cde55caf135162485c53b43f14c9bdad3d3dd0f2741117101a9
