[INFO] cloning repository https://github.com/matsu7874/brainfuck [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matsu7874/brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsu7874%2Fbrainfuck", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsu7874%2Fbrainfuck'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 629f6a4a33d216456b0185489e39bee9115b704c [INFO] building matsu7874/brainfuck 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%2Fmatsu7874%2Fbrainfuck" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matsu7874/brainfuck 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/matsu7874/brainfuck [INFO] finished tweaking git repo https://github.com/matsu7874/brainfuck [INFO] tweaked toml for git repo https://github.com/matsu7874/brainfuck written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/matsu7874/brainfuck 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] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9e9f840cf005de129984d22a56a9b489d4dfa5cfb4feefc8a38ff9edd8ae5b06 [INFO] running `Command { std: "docker" "start" "-a" "9e9f840cf005de129984d22a56a9b489d4dfa5cfb4feefc8a38ff9edd8ae5b06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e9f840cf005de129984d22a56a9b489d4dfa5cfb4feefc8a38ff9edd8ae5b06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e9f840cf005de129984d22a56a9b489d4dfa5cfb4feefc8a38ff9edd8ae5b06", kill_on_drop: false }` [INFO] [stdout] 9e9f840cf005de129984d22a56a9b489d4dfa5cfb4feefc8a38ff9edd8ae5b06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2026af432021b87e33620fa28995ebadb2bc995b690c1f9953d8cb9a168594a9 [INFO] running `Command { std: "docker" "start" "-a" "2026af432021b87e33620fa28995ebadb2bc995b690c1f9953d8cb9a168594a9", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling getopts v0.2.21 [INFO] [stderr] Compiling brainfuck v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `dep` [INFO] [stdout] --> src/interpreter.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_dep` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter.rs:112:13 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | return process::exit(64); [INFO] [stdout] | ^^^^^^^----------------- [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:32:26 [INFO] [stdout] | [INFO] [stdout] 32 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 32 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.07s [INFO] running `Command { std: "docker" "inspect" "2026af432021b87e33620fa28995ebadb2bc995b690c1f9953d8cb9a168594a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2026af432021b87e33620fa28995ebadb2bc995b690c1f9953d8cb9a168594a9", kill_on_drop: false }` [INFO] [stdout] 2026af432021b87e33620fa28995ebadb2bc995b690c1f9953d8cb9a168594a9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2894a05b239aa62546fa8d631194e4271cd348085ec6c621bae3bb76fca868f4 [INFO] running `Command { std: "docker" "start" "-a" "2894a05b239aa62546fa8d631194e4271cd348085ec6c621bae3bb76fca868f4", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `dep` [INFO] [stdout] --> src/interpreter.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_dep` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter.rs:112:13 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling brainfuck v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | return process::exit(64); [INFO] [stdout] | ^^^^^^^----------------- [INFO] [stdout] | | | [INFO] [stdout] | | any code following this expression is unreachable [INFO] [stdout] | unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/main.rs:32:26 [INFO] [stdout] | [INFO] [stdout] 32 | Err(f) => panic!(f.to_string()), [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 32 | Err(f) => panic!("{}", f.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `dep` [INFO] [stdout] --> src/interpreter.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_dep` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter.rs:112:13 [INFO] [stdout] | [INFO] [stdout] 112 | let mut dep = 1; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "2894a05b239aa62546fa8d631194e4271cd348085ec6c621bae3bb76fca868f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2894a05b239aa62546fa8d631194e4271cd348085ec6c621bae3bb76fca868f4", kill_on_drop: false }` [INFO] [stdout] 2894a05b239aa62546fa8d631194e4271cd348085ec6c621bae3bb76fca868f4