[INFO] updating cached repository https://github.com/eddywm/rust-stack-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9d6524ad209cd79ea26067ec278e08e88ebeaa3
[INFO] testing eddywm/rust-stack-vm against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddywm%2Frust-stack-vm" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eddywm/rust-stack-vm on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eddywm/rust-stack-vm
[INFO] finished tweaking git repo https://github.com/eddywm/rust-stack-vm
[INFO] tweaked toml for git repo https://github.com/eddywm/rust-stack-vm written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/eddywm/rust-stack-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88f63e93d690aa1f4cf40eb948b94154b9b20de10772d9edfd7e80bf9442cd18
[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" "88f63e93d690aa1f4cf40eb948b94154b9b20de10772d9edfd7e80bf9442cd18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88f63e93d690aa1f4cf40eb948b94154b9b20de10772d9edfd7e80bf9442cd18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f63e93d690aa1f4cf40eb948b94154b9b20de10772d9edfd7e80bf9442cd18", kill_on_drop: false }`
[INFO] [stdout] 88f63e93d690aa1f4cf40eb948b94154b9b20de10772d9edfd7e80bf9442cd18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e69df3e5f835c7e3d6a844c00fa1a82a416cdf418cf4565ca8b31b6aad37bfad
[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" "e69df3e5f835c7e3d6a844c00fa1a82a416cdf418cf4565ca8b31b6aad37bfad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-stack-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FALSE`
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRUE`
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lib::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ICONST`
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     ICONST,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LOAD`
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     LOAD,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GLOAD`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     GLOAD,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STORE`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     STORE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GSTORE`
[INFO] [stdout]   --> src/lib.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     GSTORE,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRINT`
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     PRINT,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POP`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     POP,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CALL`
[INFO] [stdout]   --> src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     CALL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RET`
[INFO] [stdout]   --> src/lib.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     RET,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HALT`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     HALT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Instruction`
[INFO] [stdout]   --> src/lib.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct Instruction {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `str`
[INFO] [stdout]   --> src/lib.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn str(&self) -> String {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn new(_name: &str, _args: u8) -> Instruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `inst_mapping`
[INFO] [stdout]    --> src/lib.rs:101:8
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub fn inst_mapping(_opcode: Opcode) -> Instruction {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FuncMetadata`
[INFO] [stdout]    --> src/lib.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct FuncMetadata {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Context`
[INFO] [stdout]    --> src/lib.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub struct Context {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FALSE`
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRUE`
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `VM`
[INFO] [stdout]    --> src/lib.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct VM {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e69df3e5f835c7e3d6a844c00fa1a82a416cdf418cf4565ca8b31b6aad37bfad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e69df3e5f835c7e3d6a844c00fa1a82a416cdf418cf4565ca8b31b6aad37bfad", kill_on_drop: false }`
[INFO] [stdout] e69df3e5f835c7e3d6a844c00fa1a82a416cdf418cf4565ca8b31b6aad37bfad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb2106bf7643f551ade31f8616ea74428fca34299b5d73389c8b529223cb4257
[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" "cb2106bf7643f551ade31f8616ea74428fca34299b5d73389c8b529223cb4257", kill_on_drop: false }`
[INFO] [stdout] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-stack-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FALSE`
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRUE`
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::lib::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::lib::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FALSE`
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRUE`
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ICONST`
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     ICONST,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LOAD`
[INFO] [stdout]   --> src/lib.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     LOAD,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `GLOAD`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     GLOAD,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `STORE`
[INFO] [stdout]   --> src/lib.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     STORE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PRINT`
[INFO] [stdout]   --> src/lib.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     PRINT,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `POP`
[INFO] [stdout]   --> src/lib.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     POP,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CALL`
[INFO] [stdout]   --> src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     CALL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RET`
[INFO] [stdout]   --> src/lib.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     RET,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HALT`
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     HALT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `str`
[INFO] [stdout]   --> src/lib.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn str(&self) -> String {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `FuncMetadata`
[INFO] [stdout]    --> src/lib.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct FuncMetadata {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Context`
[INFO] [stdout]    --> src/lib.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub struct Context {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:149:1
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stdout]    --> src/lib.rs:150:1
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FALSE`
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `TRUE`
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `VM`
[INFO] [stdout]    --> src/lib.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct VM {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "cb2106bf7643f551ade31f8616ea74428fca34299b5d73389c8b529223cb4257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2106bf7643f551ade31f8616ea74428fca34299b5d73389c8b529223cb4257", kill_on_drop: false }`
[INFO] [stdout] cb2106bf7643f551ade31f8616ea74428fca34299b5d73389c8b529223cb4257
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db472dada63aaf47b13ae32f3104712eba2d056484eed9f533b435f86c18057e
[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" "db472dada63aaf47b13ae32f3104712eba2d056484eed9f533b435f86c18057e", kill_on_drop: false }`
[INFO] [stderr] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:149:1
[INFO] [stderr]     |
[INFO] [stderr] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:150:1
[INFO] [stderr]     |
[INFO] [stderr] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FALSE`
[INFO] [stderr]    --> src/lib.rs:151:1
[INFO] [stderr]     |
[INFO] [stderr] 151 | const FALSE: i32 = 0;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TRUE`
[INFO] [stderr]    --> src/lib.rs:152:1
[INFO] [stderr]     |
[INFO] [stderr] 152 | const TRUE: i32 = 1;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:149:1
[INFO] [stderr]     |
[INFO] [stderr] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:150:1
[INFO] [stderr]     |
[INFO] [stderr] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FALSE`
[INFO] [stderr]    --> src/lib.rs:151:1
[INFO] [stderr]     |
[INFO] [stderr] 151 | const FALSE: i32 = 0;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TRUE`
[INFO] [stderr]    --> src/lib.rs:152:1
[INFO] [stderr]     |
[INFO] [stderr] 152 | const TRUE: i32 = 1;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::lib::*`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::lib::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ICONST`
[INFO] [stderr]   --> src/lib.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     ICONST,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `LOAD`
[INFO] [stderr]   --> src/lib.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     LOAD,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `GLOAD`
[INFO] [stderr]   --> src/lib.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     GLOAD,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `STORE`
[INFO] [stderr]   --> src/lib.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     STORE,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `PRINT`
[INFO] [stderr]   --> src/lib.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     PRINT,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `POP`
[INFO] [stderr]   --> src/lib.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     POP,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CALL`
[INFO] [stderr]   --> src/lib.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     CALL,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RET`
[INFO] [stderr]   --> src/lib.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     RET,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `HALT`
[INFO] [stderr]   --> src/lib.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     HALT,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `str`
[INFO] [stderr]   --> src/lib.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 |     pub fn str(&self) -> String {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FuncMetadata`
[INFO] [stderr]    --> src/lib.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 | pub struct FuncMetadata {
[INFO] [stderr]     |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Context`
[INFO] [stderr]    --> src/lib.rs:139:12
[INFO] [stderr]     |
[INFO] [stderr] 139 | pub struct Context {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DEFAULT_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:149:1
[INFO] [stderr]     |
[INFO] [stderr] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DEFAULT_CALL_STACK_SIZE`
[INFO] [stderr]    --> src/lib.rs:150:1
[INFO] [stderr]     |
[INFO] [stderr] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FALSE`
[INFO] [stderr]    --> src/lib.rs:151:1
[INFO] [stderr]     |
[INFO] [stderr] 151 | const FALSE: i32 = 0;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `TRUE`
[INFO] [stderr]    --> src/lib.rs:152:1
[INFO] [stderr]     |
[INFO] [stderr] 152 | const TRUE: i32 = 1;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VM`
[INFO] [stderr]    --> src/lib.rs:154:12
[INFO] [stderr]     |
[INFO] [stderr] 154 | pub struct VM {
[INFO] [stderr]     |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_stack_vm-f4043d9358f2f3ca
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_instruction_mapping ... ok
[INFO] [stdout] test tests::test_instruction_byte_mapping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_stack_vm-d705baf303cbf0a3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lib::tests::test_instruction_mapping ... ok
[INFO] [stdout] test lib::tests::test_instruction_byte_mapping ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-stack-vm
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db472dada63aaf47b13ae32f3104712eba2d056484eed9f533b435f86c18057e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db472dada63aaf47b13ae32f3104712eba2d056484eed9f533b435f86c18057e", kill_on_drop: false }`
[INFO] [stdout] db472dada63aaf47b13ae32f3104712eba2d056484eed9f533b435f86c18057e