[INFO] cloning repository https://github.com/whothey/firstfollow [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whothey/firstfollow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhothey%2Ffirstfollow", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhothey%2Ffirstfollow'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ed70ddfb2c949e42afc1b1b7e51e22ef854739a2 [INFO] checking whothey/firstfollow against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhothey%2Ffirstfollow" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/whothey/firstfollow on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/whothey/firstfollow [INFO] finished tweaking git repo https://github.com/whothey/firstfollow [INFO] tweaked toml for git repo https://github.com/whothey/firstfollow written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/whothey/firstfollow already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e32aa30cb3d15d4a8ea8b1970ca45c439d2da9c9cbf18be2faa2c3623050e53a [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" "e32aa30cb3d15d4a8ea8b1970ca45c439d2da9c9cbf18be2faa2c3623050e53a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e32aa30cb3d15d4a8ea8b1970ca45c439d2da9c9cbf18be2faa2c3623050e53a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e32aa30cb3d15d4a8ea8b1970ca45c439d2da9c9cbf18be2faa2c3623050e53a", kill_on_drop: false }` [INFO] [stdout] e32aa30cb3d15d4a8ea8b1970ca45c439d2da9c9cbf18be2faa2c3623050e53a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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] 2627014f193636a5fac6be4aedd452ed3eb7e46c397eb4982baf19ac4d65c448 [INFO] running `Command { std: "docker" "start" "-a" "2627014f193636a5fac6be4aedd452ed3eb7e46c397eb4982baf19ac4d65c448", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.26 [INFO] [stderr] Checking regex-syntax v0.4.1 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking thread_local v0.3.4 [INFO] [stderr] Checking memchr v1.0.1 [INFO] [stderr] Checking aho-corasick v0.6.3 [INFO] [stderr] Checking regex v0.2.2 [INFO] [stderr] Checking env_logger v0.4.3 [INFO] [stderr] Checking firstfollow v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/formalgrammar/mod.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | / lazy_static! { [INFO] [stdout] 21 | | static ref FIRST_EPSILON: Symbol = Symbol::Terminal(EPSILON_CHAR.to_string()); [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/formalgrammar/mod.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | / lazy_static! { [INFO] [stdout] 21 | | static ref FIRST_EPSILON: Symbol = Symbol::Terminal(EPSILON_CHAR.to_string()); [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/formalgrammar/mod.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | / lazy_static! { [INFO] [stdout] 21 | | static ref FIRST_EPSILON: Symbol = Symbol::Terminal(EPSILON_CHAR.to_string()); [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred [INFO] [stdout] --> src/formalgrammar/mod.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | / lazy_static! { [INFO] [stdout] 21 | | static ref FIRST_EPSILON: Symbol = Symbol::Terminal(EPSILON_CHAR.to_string()); [INFO] [stdout] 22 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/formalgrammar/mod.rs:108:37 [INFO] [stdout] | [INFO] [stdout] 108 | ... let mut set = first.get_mut(key).unwrap(); [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: variable does not need to be mutable [INFO] [stdout] --> src/formalgrammar/mod.rs:181:33 [INFO] [stdout] | [INFO] [stdout] 181 | ... let mut set = follow_map.entry(target) [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/formalgrammar/mod.rs:108:37 [INFO] [stdout] | [INFO] [stdout] 108 | ... let mut set = first.get_mut(key).unwrap(); [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: variable does not need to be mutable [INFO] [stdout] --> src/formalgrammar/mod.rs:181:33 [INFO] [stdout] | [INFO] [stdout] 181 | ... let mut set = follow_map.entry(target) [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_terminal` [INFO] [stdout] --> src/formalgrammar/symbol.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn is_terminal(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_nonterminal` [INFO] [stdout] --> src/formalgrammar/symbol.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn is_nonterminal(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_terminal` [INFO] [stdout] --> src/formalgrammar/symbol.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn is_terminal(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `is_nonterminal` [INFO] [stdout] --> src/formalgrammar/symbol.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn is_nonterminal(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.32s [INFO] running `Command { std: "docker" "inspect" "2627014f193636a5fac6be4aedd452ed3eb7e46c397eb4982baf19ac4d65c448", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2627014f193636a5fac6be4aedd452ed3eb7e46c397eb4982baf19ac4d65c448", kill_on_drop: false }` [INFO] [stdout] 2627014f193636a5fac6be4aedd452ed3eb7e46c397eb4982baf19ac4d65c448