[INFO] cloning repository https://github.com/mustafasegf/rlox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mustafasegf/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmustafasegf%2Frlox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmustafasegf%2Frlox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 10a2e1bd39d0c6e168bb869c67b42f9b5aa426be [INFO] building mustafasegf/rlox 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%2Fmustafasegf%2Frlox" "/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/mustafasegf/rlox 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/mustafasegf/rlox [INFO] finished tweaking git repo https://github.com/mustafasegf/rlox [INFO] tweaked toml for git repo https://github.com/mustafasegf/rlox written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mustafasegf/rlox 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] 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] 908df60dea164eea7738361fe82ba78c573b71b2bd49428ac01fbe52e2f03e83 [INFO] running `Command { std: "docker" "start" "-a" "908df60dea164eea7738361fe82ba78c573b71b2bd49428ac01fbe52e2f03e83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "908df60dea164eea7738361fe82ba78c573b71b2bd49428ac01fbe52e2f03e83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "908df60dea164eea7738361fe82ba78c573b71b2bd49428ac01fbe52e2f03e83", kill_on_drop: false }` [INFO] [stdout] 908df60dea164eea7738361fe82ba78c573b71b2bd49428ac01fbe52e2f03e83 [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] d6be61b6a442881db123a90ab5c327a49c00b986087c6a7608bc897af97bad00 [INFO] running `Command { std: "docker" "start" "-a" "d6be61b6a442881db123a90ab5c327a49c00b986087c6a7608bc897af97bad00", kill_on_drop: false }` [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling itertools v0.11.0 [INFO] [stderr] Compiling rlox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `start` is assigned to, but never used [INFO] [stdout] --> src/main.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | let mut start = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_start` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/main.rs:162:9 [INFO] [stdout] | [INFO] [stdout] 162 | start = current; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | let mut current = 0; [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: struct `Binary` is never constructed [INFO] [stdout] --> src/main.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Binary { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Expression` is never used [INFO] [stdout] --> src/main.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Expression { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:44:16 [INFO] [stdout] | [INFO] [stdout] 44 | IDENTIFIER(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 44 | IDENTIFIER(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | STRING(String), [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 45 | STRING(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | NUMBER(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 46 | NUMBER(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token_type`, `lexeme`, and `line` are never read [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 70 | struct Token { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 71 | token_type: TokenType, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 72 | lexeme: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 73 | line: i32, [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] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.44s [INFO] running `Command { std: "docker" "inspect" "d6be61b6a442881db123a90ab5c327a49c00b986087c6a7608bc897af97bad00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6be61b6a442881db123a90ab5c327a49c00b986087c6a7608bc897af97bad00", kill_on_drop: false }` [INFO] [stdout] d6be61b6a442881db123a90ab5c327a49c00b986087c6a7608bc897af97bad00 [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] 03cf3897b24284f5977c1165ed1753e1cd8d78879d04ad4262f58014ec69ac5f [INFO] running `Command { std: "docker" "start" "-a" "03cf3897b24284f5977c1165ed1753e1cd8d78879d04ad4262f58014ec69ac5f", kill_on_drop: false }` [INFO] [stderr] Compiling rlox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `start` is assigned to, but never used [INFO] [stdout] --> src/main.rs:153:13 [INFO] [stdout] | [INFO] [stdout] 153 | let mut start = 0; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_start` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `start` is never read [INFO] [stdout] --> src/main.rs:162:9 [INFO] [stdout] | [INFO] [stdout] 162 | start = current; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:154:9 [INFO] [stdout] | [INFO] [stdout] 154 | let mut current = 0; [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: struct `Binary` is never constructed [INFO] [stdout] --> src/main.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Binary { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Expression` is never used [INFO] [stdout] --> src/main.rs:11:6 [INFO] [stdout] | [INFO] [stdout] 11 | enum Expression { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:44:16 [INFO] [stdout] | [INFO] [stdout] 44 | IDENTIFIER(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 44 | IDENTIFIER(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | STRING(String), [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 45 | STRING(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:46:12 [INFO] [stdout] | [INFO] [stdout] 46 | NUMBER(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 46 | NUMBER(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token_type`, `lexeme`, and `line` are never read [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 70 | struct Token { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 71 | token_type: TokenType, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 72 | lexeme: String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 73 | line: i32, [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] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s [INFO] running `Command { std: "docker" "inspect" "03cf3897b24284f5977c1165ed1753e1cd8d78879d04ad4262f58014ec69ac5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03cf3897b24284f5977c1165ed1753e1cd8d78879d04ad4262f58014ec69ac5f", kill_on_drop: false }` [INFO] [stdout] 03cf3897b24284f5977c1165ed1753e1cd8d78879d04ad4262f58014ec69ac5f