[INFO] cloning repository https://github.com/ethan-coe-renner/befunge-interpreter [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethan-coe-renner/befunge-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethan-coe-renner%2Fbefunge-interpreter", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethan-coe-renner%2Fbefunge-interpreter'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ce35a0a7f92f2cc1707bf4a861db14fc92e0e29a [INFO] building ethan-coe-renner/befunge-interpreter 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%2Fethan-coe-renner%2Fbefunge-interpreter" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ethan-coe-renner/befunge-interpreter 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/ethan-coe-renner/befunge-interpreter [INFO] finished tweaking git repo https://github.com/ethan-coe-renner/befunge-interpreter [INFO] tweaked toml for git repo https://github.com/ethan-coe-renner/befunge-interpreter written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ethan-coe-renner/befunge-interpreter 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a74daf6b98e7fb480001a3d8059a4b5fe1872dd929522bec5a9274ca2e83249c [INFO] running `Command { std: "docker" "start" "-a" "a74daf6b98e7fb480001a3d8059a4b5fe1872dd929522bec5a9274ca2e83249c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a74daf6b98e7fb480001a3d8059a4b5fe1872dd929522bec5a9274ca2e83249c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a74daf6b98e7fb480001a3d8059a4b5fe1872dd929522bec5a9274ca2e83249c", kill_on_drop: false }` [INFO] [stdout] a74daf6b98e7fb480001a3d8059a4b5fe1872dd929522bec5a9274ca2e83249c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] dc8048d40a124866d651b01501c4575a1a54aaed7fc5cfbd570752dea1c5141f [INFO] running `Command { std: "docker" "start" "-a" "dc8048d40a124866d651b01501c4575a1a54aaed7fc5cfbd570752dea1c5141f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling getrandom v0.2.6 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling befunge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: constant `PROGHEIGHT` is never used [INFO] [stdout] --> src/main.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | const PROGHEIGHT: usize = 25; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `PROGWIDTH` is never used [INFO] [stdout] --> src/main.rs:8:7 [INFO] [stdout] | [INFO] [stdout] 8 | const PROGWIDTH: usize = 80; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `InterpreterError` is never used [INFO] [stdout] --> src/main.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum InterpreterError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Program` is never used [INFO] [stdout] --> src/main.rs:39:6 [INFO] [stdout] | [INFO] [stdout] 39 | type Program = [[u8; PROGWIDTH]; PROGHEIGHT]; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Pointable` is never used [INFO] [stdout] --> src/main.rs:41:7 [INFO] [stdout] | [INFO] [stdout] 41 | trait Pointable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `State` is never constructed [INFO] [stdout] --> src/main.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | struct State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `stack_arithmetic`, `move_pointer`, and `update_state` are never used [INFO] [stdout] --> src/main.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 63 | impl State { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] 64 | fn stack_arithmetic(&mut self, op: fn(u8, u8) -> u8) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | fn move_pointer(&mut self) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | fn update_state(&mut self) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pointer` is never constructed [INFO] [stdout] --> src/main.rs:208:8 [INFO] [stdout] | [INFO] [stdout] 208 | struct Pointer { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `travel` is never used [INFO] [stdout] --> src/main.rs:214:8 [INFO] [stdout] | [INFO] [stdout] 213 | impl Pointer { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 214 | fn travel(&mut self, direction: &Direction) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:279:9 [INFO] [stdout] | [INFO] [stdout] 279 | Num(u8), [INFO] [stdout] | --- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 279 | Num(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:280:10 [INFO] [stdout] | [INFO] [stdout] 280 | Char(char), [INFO] [stdout] | ---- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 280 | Char(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:138:21 [INFO] [stdout] | [INFO] [stdout] 138 | self.move_pointer(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = self.move_pointer(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s [INFO] running `Command { std: "docker" "inspect" "dc8048d40a124866d651b01501c4575a1a54aaed7fc5cfbd570752dea1c5141f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc8048d40a124866d651b01501c4575a1a54aaed7fc5cfbd570752dea1c5141f", kill_on_drop: false }` [INFO] [stdout] dc8048d40a124866d651b01501c4575a1a54aaed7fc5cfbd570752dea1c5141f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a12e13f13b4b13e9269d0fdf12598f4d5333386fd45fb89c7df54e3145f1ba3d [INFO] running `Command { std: "docker" "start" "-a" "a12e13f13b4b13e9269d0fdf12598f4d5333386fd45fb89c7df54e3145f1ba3d", kill_on_drop: false }` [INFO] [stderr] Compiling befunge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: constant `PROGHEIGHT` is never used [INFO] [stdout] --> src/main.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | const PROGHEIGHT: usize = 25; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `PROGWIDTH` is never used [INFO] [stdout] --> src/main.rs:8:7 [INFO] [stdout] | [INFO] [stdout] 8 | const PROGWIDTH: usize = 80; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `InterpreterError` is never used [INFO] [stdout] --> src/main.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum InterpreterError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Program` is never used [INFO] [stdout] --> src/main.rs:39:6 [INFO] [stdout] | [INFO] [stdout] 39 | type Program = [[u8; PROGWIDTH]; PROGHEIGHT]; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Pointable` is never used [INFO] [stdout] --> src/main.rs:41:7 [INFO] [stdout] | [INFO] [stdout] 41 | trait Pointable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `State` is never constructed [INFO] [stdout] --> src/main.rs:55:8 [INFO] [stdout] | [INFO] [stdout] 55 | struct State { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `stack_arithmetic`, `move_pointer`, and `update_state` are never used [INFO] [stdout] --> src/main.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 63 | impl State { [INFO] [stdout] | ---------- methods in this implementation [INFO] [stdout] 64 | fn stack_arithmetic(&mut self, op: fn(u8, u8) -> u8) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | fn move_pointer(&mut self) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 73 | fn update_state(&mut self) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pointer` is never constructed [INFO] [stdout] --> src/main.rs:208:8 [INFO] [stdout] | [INFO] [stdout] 208 | struct Pointer { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `travel` is never used [INFO] [stdout] --> src/main.rs:214:8 [INFO] [stdout] | [INFO] [stdout] 213 | impl Pointer { [INFO] [stdout] | ------------ method in this implementation [INFO] [stdout] 214 | fn travel(&mut self, direction: &Direction) -> Result<(), InterpreterError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:279:9 [INFO] [stdout] | [INFO] [stdout] 279 | Num(u8), [INFO] [stdout] | --- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 279 | Num(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:280:10 [INFO] [stdout] | [INFO] [stdout] 280 | Char(char), [INFO] [stdout] | ---- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 280 | Char(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:138:21 [INFO] [stdout] | [INFO] [stdout] 138 | self.move_pointer(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 138 | let _ = self.move_pointer(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s [INFO] running `Command { std: "docker" "inspect" "a12e13f13b4b13e9269d0fdf12598f4d5333386fd45fb89c7df54e3145f1ba3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a12e13f13b4b13e9269d0fdf12598f4d5333386fd45fb89c7df54e3145f1ba3d", kill_on_drop: false }` [INFO] [stdout] a12e13f13b4b13e9269d0fdf12598f4d5333386fd45fb89c7df54e3145f1ba3d