[INFO] cloning 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" "clone" "--bare" "https://github.com/eddywm/rust-stack-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddywm%2Frust-stack-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddywm%2Frust-stack-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9d6524ad209cd79ea26067ec278e08e88ebeaa3
[INFO] checking eddywm/rust-stack-vm against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feddywm%2Frust-stack-vm" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eddywm/rust-stack-vm on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eddywm/rust-stack-vm 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3765047caab7ab524576f6020466f35ecfbd90c441264180c4eb35b192dcecb
[INFO] running `Command { std: "docker" "start" "-a" "a3765047caab7ab524576f6020466f35ecfbd90c441264180c4eb35b192dcecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3765047caab7ab524576f6020466f35ecfbd90c441264180c4eb35b192dcecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3765047caab7ab524576f6020466f35ecfbd90c441264180c4eb35b192dcecb", kill_on_drop: false }`
[INFO] [stdout] a3765047caab7ab524576f6020466f35ecfbd90c441264180c4eb35b192dcecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38a185fcb74806857a718a1f146ef03f81abdcd1a16c537337188d0ad330ba0d
[INFO] running `Command { std: "docker" "start" "-a" "38a185fcb74806857a718a1f146ef03f81abdcd1a16c537337188d0ad330ba0d", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-stack-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `DEFAULT_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:149:7
[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 `DEFAULT_CALL_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FALSE` is never used
[INFO] [stdout]    --> src/lib.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRUE` is never used
[INFO] [stdout]    --> src/lib.rs:152:7
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[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 `DEFAULT_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:149:7
[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 `DEFAULT_CALL_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FALSE` is never used
[INFO] [stdout]    --> src/lib.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRUE` is never used
[INFO] [stdout]    --> src/lib.rs:152:7
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Opcode` is never used
[INFO] [stdout]   --> src/lib.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Opcode {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Instruction` is never constructed
[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 items `str` and `new` are never used
[INFO] [stdout]   --> src/lib.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | impl Instruction {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 92 |     pub fn str(&self) -> String {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn new(_name: &str, _args: u8) -> Instruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inst_mapping` is never used
[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 `FuncMetadata` is never constructed
[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 `Context` is never constructed
[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 `DEFAULT_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:149:7
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_CALL_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FALSE` is never used
[INFO] [stdout]    --> src/lib.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRUE` is never used
[INFO] [stdout]    --> src/lib.rs:152:7
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]    --> src/lib.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct VM {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: found module declaration for lib.rs
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod lib;
[INFO] [stdout]   | ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: lib.rs is the root of this crate's library target
[INFO] [stdout]   = help: to refer to it from other targets, use the library's name as the path
[INFO] [stdout]   = note: `#[warn(special_module_name)]` on by default
[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: multiple variants are never constructed
[INFO] [stdout]   --> src/lib.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub enum Opcode {
[INFO] [stdout]    |          ------ variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     ICONST,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     LOAD,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     GLOAD,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 46 |     STORE,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     PRINT,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 55 |     POP,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     CALL,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 59 |     RET,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 60 |     HALT,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stdout] warning: field `agrs` is never read
[INFO] [stdout]   --> src/lib.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct Instruction {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 88 |     pub agrs: u8,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `str` is never used
[INFO] [stdout]   --> src/lib.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 91 | impl Instruction {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] 92 |     pub fn str(&self) -> String {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FuncMetadata` is never constructed
[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 `Context` is never constructed
[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 `DEFAULT_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:149:7
[INFO] [stdout]     |
[INFO] [stdout] 149 | const DEFAULT_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_CALL_STACK_SIZE` is never used
[INFO] [stdout]    --> src/lib.rs:150:7
[INFO] [stdout]     |
[INFO] [stdout] 150 | const DEFAULT_CALL_STACK_SIZE: i32 = 1000;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FALSE` is never used
[INFO] [stdout]    --> src/lib.rs:151:7
[INFO] [stdout]     |
[INFO] [stdout] 151 | const FALSE: i32 = 0;
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `TRUE` is never used
[INFO] [stdout]    --> src/lib.rs:152:7
[INFO] [stdout]     |
[INFO] [stdout] 152 | const TRUE: i32 = 1;
[INFO] [stdout]     |       ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `VM` is never constructed
[INFO] [stdout]    --> src/lib.rs:154:12
[INFO] [stdout]     |
[INFO] [stdout] 154 | pub struct VM {
[INFO] [stdout]     |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "38a185fcb74806857a718a1f146ef03f81abdcd1a16c537337188d0ad330ba0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38a185fcb74806857a718a1f146ef03f81abdcd1a16c537337188d0ad330ba0d", kill_on_drop: false }`
[INFO] [stdout] 38a185fcb74806857a718a1f146ef03f81abdcd1a16c537337188d0ad330ba0d
