[INFO] cloning repository https://github.com/Valentine-Mario/register-vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Valentine-Mario/register-vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FValentine-Mario%2Fregister-vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FValentine-Mario%2Fregister-vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09ca1e3d4a91b02a62fc4103e34d4771c32d09dd
[INFO] checking Valentine-Mario/register-vm against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FValentine-Mario%2Fregister-vm" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Valentine-Mario/register-vm on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Valentine-Mario/register-vm
[INFO] finished tweaking git repo https://github.com/Valentine-Mario/register-vm
[INFO] tweaked toml for git repo https://github.com/Valentine-Mario/register-vm written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Valentine-Mario/register-vm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11b0aa3b7ee7510e4ec6b5d4f5590030d067c5e7fb4ecae111fd1f60e882695e
[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" "11b0aa3b7ee7510e4ec6b5d4f5590030d067c5e7fb4ecae111fd1f60e882695e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11b0aa3b7ee7510e4ec6b5d4f5590030d067c5e7fb4ecae111fd1f60e882695e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b0aa3b7ee7510e4ec6b5d4f5590030d067c5e7fb4ecae111fd1f60e882695e", kill_on_drop: false }`
[INFO] [stdout] 11b0aa3b7ee7510e4ec6b5d4f5590030d067c5e7fb4ecae111fd1f60e882695e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dac16bfb0e4b8067c5b7ea5aea147dc9086e6dc1bceebbe511f5ccfd9876d15c
[INFO] running `Command { std: "docker" "start" "-a" "dac16bfb0e4b8067c5b7ea5aea147dc9086e6dc1bceebbe511f5ccfd9876d15c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::assembler::register_parser`
[INFO] [stdout]  --> src/assembler/opcode_parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::assembler::register_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::digit`
[INFO] [stdout]  --> src/assembler/operand_parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use nom::digit;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arg`, `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]    |            ^^^       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::assembler::register_parser`
[INFO] [stdout]  --> src/assembler/opcode_parser.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::assembler::register_parser;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/opcode_parser.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `nom::digit`
[INFO] [stdout]  --> src/assembler/operand_parser.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use nom::digit;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm`
[INFO] [stdout]   --> src/assembler/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::vm;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arg`, `SubCommand`
[INFO] [stdout]   --> src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]    |            ^^^       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]   --> src/repl/mod.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                         Ok((remainder, program)) => {
[INFO] [stdout]    |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `remainder`
[INFO] [stdout]   --> src/repl/mod.rs:78:29
[INFO] [stdout]    |
[INFO] [stdout] 78 |                         Ok((remainder, program)) => {
[INFO] [stdout]    |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_remainder`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `remainder`
[INFO] [stdout]   --> src/vm.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     remainder: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `remainder`
[INFO] [stdout]   --> src/vm.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     remainder: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.98s
[INFO] running `Command { std: "docker" "inspect" "dac16bfb0e4b8067c5b7ea5aea147dc9086e6dc1bceebbe511f5ccfd9876d15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac16bfb0e4b8067c5b7ea5aea147dc9086e6dc1bceebbe511f5ccfd9876d15c", kill_on_drop: false }`
[INFO] [stdout] dac16bfb0e4b8067c5b7ea5aea147dc9086e6dc1bceebbe511f5ccfd9876d15c