[INFO] cloning repository https://github.com/ItayGarin/sym-or-num [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ItayGarin/sym-or-num" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItayGarin%2Fsym-or-num", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItayGarin%2Fsym-or-num'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 963e6163eabbef086d0e74b62b12c87e8989cfc3 [INFO] checking ItayGarin/sym-or-num against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FItayGarin%2Fsym-or-num" "/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/ItayGarin/sym-or-num on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ItayGarin/sym-or-num [INFO] finished tweaking git repo https://github.com/ItayGarin/sym-or-num [INFO] tweaked toml for git repo https://github.com/ItayGarin/sym-or-num written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/ItayGarin/sym-or-num already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 531f28f6c5e3ebaf825b93d639b6ff2e37ec5890a972ff587ed06db039c37f8d [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" "531f28f6c5e3ebaf825b93d639b6ff2e37ec5890a972ff587ed06db039c37f8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "531f28f6c5e3ebaf825b93d639b6ff2e37ec5890a972ff587ed06db039c37f8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "531f28f6c5e3ebaf825b93d639b6ff2e37ec5890a972ff587ed06db039c37f8d", kill_on_drop: false }` [INFO] [stdout] 531f28f6c5e3ebaf825b93d639b6ff2e37ec5890a972ff587ed06db039c37f8d [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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 279c17f9e65db2f6b53c41d8a416209cf588e2cf96f8caca3b294f1aeeb07ae7 [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" "279c17f9e65db2f6b53c41d8a416209cf588e2cf96f8caca3b294f1aeeb07ae7", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.36 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking event-listener v2.3.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking concurrent-queue v1.2.0 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking async-channel v1.4.0 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking futures-lite v0.1.10 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking blocking v0.4.7 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Compiling pin-project-internal v0.4.23 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking pin-project v0.4.23 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking smol v0.1.18 [INFO] [stderr] Checking async-std v1.6.2 [INFO] [stderr] Checking sym-or-num v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function is never used: `filter_regex` [INFO] [stdout] --> src/freq.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn filter_regex(mut self, regex: Regex) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `get_freq` [INFO] [stdout] --> src/freq.rs:66:8 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn get_freq(input: &str) -> FreqMap { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 51.14s [INFO] running `Command { std: "docker" "inspect" "279c17f9e65db2f6b53c41d8a416209cf588e2cf96f8caca3b294f1aeeb07ae7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "279c17f9e65db2f6b53c41d8a416209cf588e2cf96f8caca3b294f1aeeb07ae7", kill_on_drop: false }` [INFO] [stdout] 279c17f9e65db2f6b53c41d8a416209cf588e2cf96f8caca3b294f1aeeb07ae7