[INFO] cloning repository https://github.com/Snektron/mamba [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Snektron/mamba" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8e16034b3ed9bcf9a5a92b15d9ce65d3bcf8360e [INFO] checking Snektron/mamba against master#029c9e18dd1f4668e1d42bb187c1c263dfe20093 for pr-157562 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSnektron%2Fmamba" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Snektron/mamba [INFO] finished tweaking git repo https://github.com/Snektron/mamba [INFO] tweaked toml for git repo https://github.com/Snektron/mamba written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Snektron/mamba on toolchain 029c9e18dd1f4668e1d42bb187c1c263dfe20093 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 80 packages to latest compatible versions [INFO] [stderr] Adding clap v2.34.0 (available: v4.6.1) [INFO] [stderr] Adding lalrpop v0.16.3 (available: v0.23.1) [INFO] [stderr] Adding lalrpop-util v0.16.3 (available: v0.23.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] warning: `mamba` (manifest) generated 1 warning [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded string_cache v0.7.5 [INFO] [stderr] Downloaded string_cache_shared v0.3.0 [INFO] [stderr] Downloaded term v0.4.6 [INFO] [stderr] Downloaded lalrpop-util v0.16.3 [INFO] [stderr] Downloaded block-padding v0.1.5 [INFO] [stderr] Downloaded ascii-canvas v1.0.0 [INFO] [stderr] Downloaded byte-tools v0.3.1 [INFO] [stderr] Downloaded fixedbitset v0.1.9 [INFO] [stderr] Downloaded strsim v0.10.0 [INFO] [stderr] Downloaded phf_shared v0.7.24 [INFO] [stderr] Downloaded digest v0.8.1 [INFO] [stderr] Downloaded opaque-debug v0.2.3 [INFO] [stderr] Downloaded string_cache_codegen v0.4.4 [INFO] [stderr] Downloaded siphasher v0.2.3 [INFO] [stderr] Downloaded phf_generator v0.7.24 [INFO] [stderr] Downloaded fake-simd v0.1.2 [INFO] [stderr] Downloaded block-buffer v0.7.3 [INFO] [stderr] Downloaded generic-array v0.12.4 [INFO] [stderr] Downloaded either v1.16.0 [INFO] [stderr] Downloaded sha2 v0.8.2 [INFO] [stderr] Downloaded ordermap v0.3.5 [INFO] [stderr] Downloaded ena v0.11.0 [INFO] [stderr] Downloaded docopt v1.1.1 [INFO] [stderr] Downloaded diff v0.1.13 [INFO] [stderr] Downloaded lalrpop v0.16.3 [INFO] [stderr] Downloaded petgraph v0.4.13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }` [INFO] [stdout] 3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c [INFO] running `Command { std: "docker" "start" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c" "/opt/rustwide/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c" "/opt/rustwide/cargo-home/bin/cargo" "+029c9e18dd1f4668e1d42bb187c1c263dfe20093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] warning: `mamba` (manifest) generated 1 warning [INFO] [stderr] Compiling autocfg v1.5.1 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling libc v0.2.186 [INFO] [stderr] Compiling proc-macro2 v1.0.106 [INFO] [stderr] Compiling quote v1.0.45 [INFO] [stderr] Compiling unicode-ident v1.0.24 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling memchr v2.8.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling typenum v1.20.1 [INFO] [stderr] Compiling regex-syntax v0.8.11 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling aho-corasick v1.1.4 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling syn v2.0.118 [INFO] [stderr] Compiling byteorder v1.5.0 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling generic-array v0.12.4 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling either v1.16.0 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling log v0.4.32 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling ascii-canvas v1.0.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling string_cache v0.7.5 [INFO] [stderr] Compiling regex-automata v0.4.14 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling diff v0.1.13 [INFO] [stderr] Checking unicode-width v0.1.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling regex v1.12.4 [INFO] [stderr] Compiling docopt v1.1.1 [INFO] [stderr] Compiling lalrpop v0.16.3 [INFO] [stderr] Compiling mamba v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1861:5 [INFO] [stdout] | [INFO] [stdout] 1861 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1861 - (__0) [INFO] [stdout] 1861 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1934:5 [INFO] [stdout] | [INFO] [stdout] 1934 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1934 - (__0) [INFO] [stdout] 1934 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1947:5 [INFO] [stdout] | [INFO] [stdout] 1947 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1947 - (__0) [INFO] [stdout] 1947 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1995:5 [INFO] [stdout] | [INFO] [stdout] 1995 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1995 - (__0) [INFO] [stdout] 1995 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:2009:5 [INFO] [stdout] | [INFO] [stdout] 2009 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2009 - (__0) [INFO] [stdout] 2009 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:2216:5 [INFO] [stdout] | [INFO] [stdout] 2216 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2216 - (__0) [INFO] [stdout] 2216 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ast/construct.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | let mut t = check_arms(&from, arms, &states, &alphabet)?; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1861:5 [INFO] [stdout] | [INFO] [stdout] 1861 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1861 - (__0) [INFO] [stdout] 1861 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1934:5 [INFO] [stdout] | [INFO] [stdout] 1934 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1934 - (__0) [INFO] [stdout] 1934 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1947:5 [INFO] [stdout] | [INFO] [stdout] 1947 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1947 - (__0) [INFO] [stdout] 1947 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:1995:5 [INFO] [stdout] | [INFO] [stdout] 1995 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 1995 - (__0) [INFO] [stdout] 1995 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:2009:5 [INFO] [stdout] | [INFO] [stdout] 2009 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2009 - (__0) [INFO] [stdout] 2009 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/mamba-ec0f045948ae226d/out/parser/grammar.rs:2216:5 [INFO] [stdout] | [INFO] [stdout] 2216 | (__0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2216 - (__0) [INFO] [stdout] 2216 + __0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/dtm/interpret.rs:181:55 [INFO] [stdout] | [INFO] [stdout] 181 | pub fn new(dtm: &'t TuringMachine, tape: Tape) -> Interpreter { [INFO] [stdout] | -- the lifetime is named here ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'t` [INFO] [stdout] | [INFO] [stdout] 181 | pub fn new(dtm: &'t TuringMachine, tape: Tape) -> Interpreter<'t> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ast/construct.rs:188:13 [INFO] [stdout] | [INFO] [stdout] 188 | let mut t = check_arms(&from, arms, &states, &alphabet)?; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/dtm/interpret.rs:181:55 [INFO] [stdout] | [INFO] [stdout] 181 | pub fn new(dtm: &'t TuringMachine, tape: Tape) -> Interpreter { [INFO] [stdout] | -- the lifetime is named here ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: consistently use `'t` [INFO] [stdout] | [INFO] [stdout] 181 | pub fn new(dtm: &'t TuringMachine, tape: Tape) -> Interpreter<'t> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.19s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c", kill_on_drop: false }` [INFO] [stdout] 3e0ce4a1d620c12bd2d6984d230dad5d3c6cb1f8d245ac75498a9c4565d7e68c