[INFO] cloning repository https://github.com/sanderhahn/rust-expr [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sanderhahn/rust-expr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanderhahn%2Frust-expr", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanderhahn%2Frust-expr'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 68ff888206d4f7a015f5929174912f4529dc7cbd [INFO] checking sanderhahn/rust-expr against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsanderhahn%2Frust-expr" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sanderhahn/rust-expr on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sanderhahn/rust-expr [INFO] finished tweaking git repo https://github.com/sanderhahn/rust-expr [INFO] tweaked toml for git repo https://github.com/sanderhahn/rust-expr written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/sanderhahn/rust-expr already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9beef614a812bc76de74dd8003a7aa6bfbd79a50e6680ae2836a820b178ee93f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9beef614a812bc76de74dd8003a7aa6bfbd79a50e6680ae2836a820b178ee93f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9beef614a812bc76de74dd8003a7aa6bfbd79a50e6680ae2836a820b178ee93f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9beef614a812bc76de74dd8003a7aa6bfbd79a50e6680ae2836a820b178ee93f", kill_on_drop: false }` [INFO] [stdout] 9beef614a812bc76de74dd8003a7aa6bfbd79a50e6680ae2836a820b178ee93f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4538b2bafa0d0c9f40f4c46fdef6212b5d3074bbd88c2cd998f0f5468b1f993f [INFO] running `Command { std: "docker" "start" "-a" "4538b2bafa0d0c9f40f4c46fdef6212b5d3074bbd88c2cd998f0f5468b1f993f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling proc-macro2 v1.0.3 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling serde v1.0.100 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling lalrpop-util v0.17.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking ucd-util v0.1.5 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling bit-set v0.5.1 [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] Checking regex-syntax v0.5.6 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling ena v0.13.0 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.100 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling lalrpop v0.17.2 [INFO] [stderr] Compiling rust-expr v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:860:5 [INFO] [stdout] | [INFO] [stdout] 860 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:884:5 [INFO] [stdout] | [INFO] [stdout] 884 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:908:5 [INFO] [stdout] | [INFO] [stdout] 908 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:860:5 [INFO] [stdout] | [INFO] [stdout] 860 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:884:5 [INFO] [stdout] | [INFO] [stdout] 884 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/rust-expr-7885e633e9936003/out/grammar.rs:908:5 [INFO] [stdout] | [INFO] [stdout] 908 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 37s [INFO] running `Command { std: "docker" "inspect" "4538b2bafa0d0c9f40f4c46fdef6212b5d3074bbd88c2cd998f0f5468b1f993f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4538b2bafa0d0c9f40f4c46fdef6212b5d3074bbd88c2cd998f0f5468b1f993f", kill_on_drop: false }` [INFO] [stdout] 4538b2bafa0d0c9f40f4c46fdef6212b5d3074bbd88c2cd998f0f5468b1f993f