[INFO] cloning repository https://github.com/Cheshulko/cm_vm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cheshulko/cm_vm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCheshulko%2Fcm_vm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCheshulko%2Fcm_vm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09744ff8d18bfb2e1442978ec704f1d9ec22709e
[INFO] building Cheshulko/cm_vm against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCheshulko%2Fcm_vm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cheshulko/cm_vm on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cheshulko/cm_vm
[INFO] finished tweaking git repo https://github.com/Cheshulko/cm_vm
[INFO] tweaked toml for git repo https://github.com/Cheshulko/cm_vm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Cheshulko/cm_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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is-terminal v0.4.5
[INFO] [stderr]   Downloaded rustix v0.36.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a69a637a905f37f59981a42e81e9f945f5941e05fccea76ba34978d1cb644610
[INFO] running `Command { std: "docker" "start" "-a" "a69a637a905f37f59981a42e81e9f945f5941e05fccea76ba34978d1cb644610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a69a637a905f37f59981a42e81e9f945f5941e05fccea76ba34978d1cb644610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69a637a905f37f59981a42e81e9f945f5941e05fccea76ba34978d1cb644610", kill_on_drop: false }`
[INFO] [stdout] a69a637a905f37f59981a42e81e9f945f5941e05fccea76ba34978d1cb644610
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a115d80d3322abdb223a6eddbac1814744781cf31c47aa636bd2b137d70e38d
[INFO] running `Command { std: "docker" "start" "-a" "6a115d80d3322abdb223a6eddbac1814744781cf31c47aa636bd2b137d70e38d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]    Compiling is-terminal v0.4.5
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling cm_vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/directive_parser.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::instruction::Opcode`
[INFO] [stdout]   --> src/assembler/directive_parser.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     use crate::vm::instruction::Opcode;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/assembler/instruction_parser.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 150 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::vm::instruction::Opcode`
[INFO] [stdout]    --> src/assembler/instruction_parser.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     use crate::vm::instruction::Opcode;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/opcode_parser.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/operand_parser.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/register_parser.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/assembler/mod.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LabelDeclaration` and `LabelUsage` are never constructed
[INFO] [stdout]  --> src/assembler/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Token {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     LabelDeclaration { name: String },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     LabelUsage { name: String },
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` 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] [stdout] warning: method `run` is never used
[INFO] [stdout]    --> src/vm/mod.rs:196:12
[INFO] [stdout]     |
[INFO] [stdout] 21  | impl VM {
[INFO] [stdout]     | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 196 |     pub fn run(&mut self) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/vm/instruction.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl Instruction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 72 |     pub fn new(opcode: Opcode) -> Instruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "6a115d80d3322abdb223a6eddbac1814744781cf31c47aa636bd2b137d70e38d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a115d80d3322abdb223a6eddbac1814744781cf31c47aa636bd2b137d70e38d", kill_on_drop: false }`
[INFO] [stdout] 6a115d80d3322abdb223a6eddbac1814744781cf31c47aa636bd2b137d70e38d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883460fad20bc849baf3452f998534baf994019c698fae663a52e9d21cb433e9
[INFO] running `Command { std: "docker" "start" "-a" "883460fad20bc849baf3452f998534baf994019c698fae663a52e9d21cb433e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cm_vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::vm::instruction::Opcode`
[INFO] [stdout]   --> src/assembler/directive_parser.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     use crate::vm::instruction::Opcode;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `LabelDeclaration` and `LabelUsage` are never constructed
[INFO] [stdout]  --> src/assembler/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum Token {
[INFO] [stdout]   |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     LabelDeclaration { name: String },
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     LabelUsage { name: String },
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Token` 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 `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "883460fad20bc849baf3452f998534baf994019c698fae663a52e9d21cb433e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883460fad20bc849baf3452f998534baf994019c698fae663a52e9d21cb433e9", kill_on_drop: false }`
[INFO] [stdout] 883460fad20bc849baf3452f998534baf994019c698fae663a52e9d21cb433e9