[INFO] cloning repository https://github.com/higumachan/zero-rust-regex [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/higumachan/zero-rust-regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhigumachan%2Fzero-rust-regex", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhigumachan%2Fzero-rust-regex'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8732c7af51d5de65474ef0aae1a0cd3eb44454ad [INFO] building higumachan/zero-rust-regex 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%2Fhigumachan%2Fzero-rust-regex" "/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/higumachan/zero-rust-regex 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/higumachan/zero-rust-regex [INFO] finished tweaking git repo https://github.com/higumachan/zero-rust-regex [INFO] tweaked toml for git repo https://github.com/higumachan/zero-rust-regex written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/higumachan/zero-rust-regex 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 rstest v0.16.0 [INFO] [stderr] Downloaded rstest_macros v0.16.0 [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] 5243bef7b5a0807b024c8326174a9bd06af2e2d61908c2679ba07ab7a527f80f [INFO] running `Command { std: "docker" "start" "-a" "5243bef7b5a0807b024c8326174a9bd06af2e2d61908c2679ba07ab7a527f80f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5243bef7b5a0807b024c8326174a9bd06af2e2d61908c2679ba07ab7a527f80f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5243bef7b5a0807b024c8326174a9bd06af2e2d61908c2679ba07ab7a527f80f", kill_on_drop: false }` [INFO] [stdout] 5243bef7b5a0807b024c8326174a9bd06af2e2d61908c2679ba07ab7a527f80f [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] 41b3021293514a599661da9b483de54207a10401129d57d4c2a11d1c0ba9ffa9 [INFO] running `Command { std: "docker" "start" "-a" "41b3021293514a599661da9b483de54207a10401129d57d4c2a11d1c0ba9ffa9", kill_on_drop: false }` [INFO] [stderr] Compiling zero-rust-regex v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `inst` [INFO] [stdout] --> src/engine/evaluator.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | inst: &[Instruction], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_inst` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `line` [INFO] [stdout] --> src/engine/evaluator.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | line: &[char], [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_line` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `display_context` is never used [INFO] [stdout] --> src/engine/evaluator.rs:266:4 [INFO] [stdout] | [INFO] [stdout] 266 | fn display_context(inst: &[Instruction], line: &[char], pc: usize, sp: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/engine/parser.rs:22:19 [INFO] [stdout] | [INFO] [stdout] 22 | InvalidEscape(usize, char), [INFO] [stdout] | ------------- ^^^^^ ^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `ParserError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 22 | InvalidEscape((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/engine/parser.rs:25:12 [INFO] [stdout] | [INFO] [stdout] 25 | NoPrev(usize), [INFO] [stdout] | ------ ^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `ParserError` has a derived impl for the trait `Debug`, but this is 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] 25 | NoPrev(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SafeAdd` is never used [INFO] [stdout] --> src/helper.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | pub(crate) trait SafeAdd: Sized { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "41b3021293514a599661da9b483de54207a10401129d57d4c2a11d1c0ba9ffa9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41b3021293514a599661da9b483de54207a10401129d57d4c2a11d1c0ba9ffa9", kill_on_drop: false }` [INFO] [stdout] 41b3021293514a599661da9b483de54207a10401129d57d4c2a11d1c0ba9ffa9 [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] c5d167a5dcffc4a25717e0b34dfca09d092893edf44f5cfba7e3af7da5769939 [INFO] running `Command { std: "docker" "start" "-a" "c5d167a5dcffc4a25717e0b34dfca09d092893edf44f5cfba7e3af7da5769939", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.49 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.14 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling semver v1.0.16 [INFO] [stderr] Compiling futures-core v0.3.25 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling futures-task v0.3.25 [INFO] [stderr] Compiling futures-channel v0.3.25 [INFO] [stderr] Compiling serde v1.0.152 [INFO] [stderr] Compiling futures-util v0.3.25 [INFO] [stderr] Compiling futures-sink v0.3.25 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling serde_json v1.0.91 [INFO] [stderr] Compiling either v1.8.0 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling rayon-core v1.10.1 [INFO] [stderr] Compiling futures-io v0.3.25 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling os_str_bytes v6.4.1 [INFO] [stderr] Compiling itoa v1.0.5 [INFO] [stderr] Compiling ryu v1.0.12 [INFO] [stderr] Compiling half v1.8.2 [INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.49/src/lib.rs:92:30 [INFO] [stdout] | [INFO] [stdout] 92 | feature(proc_macro_span, proc_macro_span_shrink) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ciborium-io v0.2.0 [INFO] [stderr] Compiling plotters-backend v0.3.4 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling memoffset v0.7.1 [INFO] [stderr] Compiling slab v0.4.7 [INFO] [stdout] For more information about this error, try `rustc --explain E0635`. [INFO] [stdout] [INFO] [stderr] Compiling crossbeam-epoch v0.9.13 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "c5d167a5dcffc4a25717e0b34dfca09d092893edf44f5cfba7e3af7da5769939", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5d167a5dcffc4a25717e0b34dfca09d092893edf44f5cfba7e3af7da5769939", kill_on_drop: false }` [INFO] [stdout] c5d167a5dcffc4a25717e0b34dfca09d092893edf44f5cfba7e3af7da5769939