[INFO] cloning repository https://github.com/kaliumxyz/ctf-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kaliumxyz/ctf-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaliumxyz%2Fctf-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaliumxyz%2Fctf-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a446bcf975f09ce0c7542c9447a31b0764aea98
[INFO] checking kaliumxyz/ctf-vm against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkaliumxyz%2Fctf-vm" "/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/kaliumxyz/ctf-vm
[INFO] finished tweaking git repo https://github.com/kaliumxyz/ctf-vm
[INFO] tweaked toml for git repo https://github.com/kaliumxyz/ctf-vm written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kaliumxyz/ctf-vm on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kaliumxyz/ctf-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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89
[INFO] running `Command { std: "docker" "start" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking nix v0.20.2
[INFO] [stderr]     Checking synacor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/opcode.rs:838:31
[INFO] [stdout]     |
[INFO] [stdout] 838 |                 state.program[(state.ip + 1)],
[INFO] [stdout]     |                               ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -                 state.program[(state.ip + 1)],
[INFO] [stdout] 838 +                 state.program[state.ip + 1],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/opcode.rs:839:31
[INFO] [stdout]     |
[INFO] [stdout] 839 |                 state.program[(state.ip + 2)]
[INFO] [stdout]     |                               ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 839 -                 state.program[(state.ip + 2)]
[INFO] [stdout] 839 +                 state.program[state.ip + 2]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/opcode.rs:838:31
[INFO] [stdout]     |
[INFO] [stdout] 838 |                 state.program[(state.ip + 1)],
[INFO] [stdout]     |                               ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 838 -                 state.program[(state.ip + 1)],
[INFO] [stdout] 838 +                 state.program[state.ip + 1],
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/opcode.rs:839:31
[INFO] [stdout]     |
[INFO] [stdout] 839 |                 state.program[(state.ip + 2)]
[INFO] [stdout]     |                               ^            ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 839 -                 state.program[(state.ip + 2)]
[INFO] [stdout] 839 +                 state.program[state.ip + 2]
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vm.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut stack: Vec<u8> = save.drain(0..(sp * 2)).collect();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/opcode.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]    --> src/opcode.rs:234:36
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/opcode.rs:234:53
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/debug/debugger.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |             Command::PrintMemoryRange(mut n, m) => {
[INFO] [stdout]     |                                       ----^
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/debug/debugger.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 let mut i = state.ip;
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_op` is never used
[INFO] [stdout]    --> src/opcode.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/vm.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut stack: Vec<u8> = save.drain(0..(sp * 2)).collect();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/opcode.rs:234:17
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `meta`
[INFO] [stdout]    --> src/opcode.rs:234:36
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_meta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/opcode.rs:234:53
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |                                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/debug/debugger.rs:125:39
[INFO] [stdout]     |
[INFO] [stdout] 125 |             Command::PrintMemoryRange(mut n, m) => {
[INFO] [stdout]     |                                       ----^
[INFO] [stdout]     |                                       |
[INFO] [stdout]     |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/debug/debugger.rs:136:21
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 let mut i = state.ip;
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `debug_op` is never used
[INFO] [stdout]    --> src/opcode.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 | pub fn debug_op(state: &mut State, meta: &mut Meta, code: Code) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `nix`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | nix = "0.20.2"
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `nix`
[INFO] [stderr] warning: `synacor` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89", kill_on_drop: false }`
[INFO] [stdout] 41fd25733fac45bde09d4054c78b68291d0f0f0f395ee381a441c0965b79ca89
