[INFO] cloning repository https://github.com/blindLightning/crust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blindLightning/crust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FblindLightning%2Fcrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FblindLightning%2Fcrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7383ab0c085247a233c6fcc5ceada76a722e7fe
[INFO] building blindLightning/crust 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%2FblindLightning%2Fcrust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blindLightning/crust 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/blindLightning/crust
[INFO] finished tweaking git repo https://github.com/blindLightning/crust
[INFO] tweaked toml for git repo https://github.com/blindLightning/crust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/blindLightning/crust 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7c66ea73bf0d0cc4699cd9643cbda2581a7967e3111047e6fae53840799fd7c0
[INFO] running `Command { std: "docker" "start" "-a" "7c66ea73bf0d0cc4699cd9643cbda2581a7967e3111047e6fae53840799fd7c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c66ea73bf0d0cc4699cd9643cbda2581a7967e3111047e6fae53840799fd7c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c66ea73bf0d0cc4699cd9643cbda2581a7967e3111047e6fae53840799fd7c0", kill_on_drop: false }`
[INFO] [stdout] 7c66ea73bf0d0cc4699cd9643cbda2581a7967e3111047e6fae53840799fd7c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 134e10ed0712034ff9bf4a4d1c4617af47d75919403a44dceb86a8401af72304
[INFO] running `Command { std: "docker" "start" "-a" "134e10ed0712034ff9bf4a4d1c4617af47d75919403a44dceb86a8401af72304", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling nom v5.1.3
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling crust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/assembler/instruction_parser.rs:48:38
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let result = res.unwrap_or_else(|e| {
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_byte` is never used
[INFO] [stdout]   --> src/vm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl VM {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 | pub fn add_byte(&mut self, byte: u8) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/instruction.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Instruction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(opcode: Opcode) -> Instruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_hex` is never used
[INFO] [stdout]   --> src/repl/mod.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Repl {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 | fn parse_hex(&mut self, hex: &str) -> Result<Vec<u8>, ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Result` should have a snake case name
[INFO] [stdout]   --> src/repl/mod.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     Ok(_Result) => {
[INFO] [stdout]    |                        ^^^^^^^ help: convert the identifier to snake case: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Program` should have a snake case name
[INFO] [stdout]   --> src/assembler/program_parser.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn Program(i: parse::Input) -> parse::Result<Program> {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `program`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "134e10ed0712034ff9bf4a4d1c4617af47d75919403a44dceb86a8401af72304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134e10ed0712034ff9bf4a4d1c4617af47d75919403a44dceb86a8401af72304", kill_on_drop: false }`
[INFO] [stdout] 134e10ed0712034ff9bf4a4d1c4617af47d75919403a44dceb86a8401af72304
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e58987dfd3c34f8eb4920517be291c75027c7c64af8c2ea00bd64e7947519561
[INFO] running `Command { std: "docker" "start" "-a" "e58987dfd3c34f8eb4920517be291c75027c7c64af8c2ea00bd64e7947519561", kill_on_drop: false }`
[INFO] [stderr]    Compiling crust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/assembler/instruction_parser.rs:48:38
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let result = res.unwrap_or_else(|e| {
[INFO] [stdout]    |                                      ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_byte` is never used
[INFO] [stdout]   --> src/vm.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl VM {
[INFO] [stdout]    | ------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 36 | pub fn add_byte(&mut self, byte: u8) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/instruction.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl Instruction {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 31 |     pub fn new(opcode: Opcode) -> Instruction {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `parse_hex` is never used
[INFO] [stdout]   --> src/repl/mod.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Repl {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 | fn parse_hex(&mut self, hex: &str) -> Result<Vec<u8>, ParseIntError> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_Result` should have a snake case name
[INFO] [stdout]   --> src/repl/mod.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     Ok(_Result) => {
[INFO] [stdout]    |                        ^^^^^^^ help: convert the identifier to snake case: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Program` should have a snake case name
[INFO] [stdout]   --> src/assembler/program_parser.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn Program(i: parse::Input) -> parse::Result<Program> {
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `program`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e58987dfd3c34f8eb4920517be291c75027c7c64af8c2ea00bd64e7947519561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e58987dfd3c34f8eb4920517be291c75027c7c64af8c2ea00bd64e7947519561", kill_on_drop: false }`
[INFO] [stdout] e58987dfd3c34f8eb4920517be291c75027c7c64af8c2ea00bd64e7947519561