[INFO] fetching crate csv-groupby 0.8.2...
[INFO] checking csv-groupby-0.8.2 against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] extracting crate csv-groupby 0.8.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate csv-groupby 0.8.2 on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate csv-groupby 0.8.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate csv-groupby 0.8.2
[INFO] tweaked toml for crates.io crate csv-groupby 0.8.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate csv-groupby 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+zstd.1.4.5` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60072fe140255c07ff0c70762cfbc076283af130668c30d56d74174864afe4bb
[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" "60072fe140255c07ff0c70762cfbc076283af130668c30d56d74174864afe4bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60072fe140255c07ff0c70762cfbc076283af130668c30d56d74174864afe4bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60072fe140255c07ff0c70762cfbc076283af130668c30d56d74174864afe4bb", kill_on_drop: false }`
[INFO] [stdout] 60072fe140255c07ff0c70762cfbc076283af130668c30d56d74174864afe4bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84ba7ba1515e388edf6cc61bd25104de36d57f3fde10258f196976790f0911ab
[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" "84ba7ba1515e388edf6cc61bd25104de36d57f3fde10258f196976790f0911ab", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.5.2+zstd.1.4.5` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling syn v1.0.31
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[INFO] [stderr]    Compiling vergen v3.1.0
[INFO] [stderr]    Compiling csv-groupby v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling structopt-derive v0.4.8
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[INFO] [stdout] warning: function is never used: `gettid`
[INFO] [stdout]   --> src/gen.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn gettid() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mem_metric`
[INFO] [stdout]   --> src/gen.rs:98:4
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn mem_metric<'a>(v: usize) -> (f64, &'a str) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sig_dig`
[INFO] [stdout]    --> src/gen.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn sig_dig(v: f64, digits: usize) -> String {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mem_metric_digit`
[INFO] [stdout]    --> src/gen.rs:136:8
[INFO] [stdout]     |
[INFO] [stdout] 136 | pub fn mem_metric_digit(v: usize, sig: usize) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `greek`
[INFO] [stdout]    --> src/gen.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn greek(v: f64) -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `user_pause`
[INFO] [stdout]    --> src/gen.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub fn user_pause() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/gen.rs:223:12
[INFO] [stdout]     |
[INFO] [stdout] 223 |     pub fn new() -> IoSlicerStatus {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fill_buff`
[INFO] [stdout]    --> src/gen.rs:241:4
[INFO] [stdout]     |
[INFO] [stdout] 241 | fn fill_buff(handle: &mut dyn Read, buff: &mut [u8]) -> Result<usize, std::io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `io_thread_slicer`
[INFO] [stdout]    --> src/gen.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn io_thread_slicer(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `caps_to_vec_strings`
[INFO] [stdout]    --> src/gen.rs:379:8
[INFO] [stdout]     |
[INFO] [stdout] 379 | pub fn caps_to_vec_strings(caps: &Captures_pcre2) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subs_from_path_buff`
[INFO] [stdout]    --> src/gen.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 | pub fn subs_from_path_buff(path: &PathBuf, regex: &Option<Regex_pre2>) -> (bool, Vec<String>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `per_file_thread`
[INFO] [stdout]    --> src/gen.rs:402:8
[INFO] [stdout]     |
[INFO] [stdout] 402 | pub fn per_file_thread(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gettid`
[INFO] [stdout]   --> src/gen.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn gettid() -> usize {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `greek`
[INFO] [stdout]    --> src/gen.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn greek(v: f64) -> String {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `user_pause`
[INFO] [stdout]    --> src/gen.rs:207:8
[INFO] [stdout]     |
[INFO] [stdout] 207 | pub fn user_pause() {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/gen.rs:223:12
[INFO] [stdout]     |
[INFO] [stdout] 223 |     pub fn new() -> IoSlicerStatus {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fill_buff`
[INFO] [stdout]    --> src/gen.rs:241:4
[INFO] [stdout]     |
[INFO] [stdout] 241 | fn fill_buff(handle: &mut dyn Read, buff: &mut [u8]) -> Result<usize, std::io::Error> {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `io_thread_slicer`
[INFO] [stdout]    --> src/gen.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn io_thread_slicer(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `caps_to_vec_strings`
[INFO] [stdout]    --> src/gen.rs:379:8
[INFO] [stdout]     |
[INFO] [stdout] 379 | pub fn caps_to_vec_strings(caps: &Captures_pcre2) -> Vec<String> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `subs_from_path_buff`
[INFO] [stdout]    --> src/gen.rs:389:8
[INFO] [stdout]     |
[INFO] [stdout] 389 | pub fn subs_from_path_buff(path: &PathBuf, regex: &Option<Regex_pre2>) -> (bool, Vec<String>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `per_file_thread`
[INFO] [stdout]    --> src/gen.rs:402:8
[INFO] [stdout]     |
[INFO] [stdout] 402 | pub fn per_file_thread(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 17s
[INFO] running `Command { std: "docker" "inspect" "84ba7ba1515e388edf6cc61bd25104de36d57f3fde10258f196976790f0911ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ba7ba1515e388edf6cc61bd25104de36d57f3fde10258f196976790f0911ab", kill_on_drop: false }`
[INFO] [stdout] 84ba7ba1515e388edf6cc61bd25104de36d57f3fde10258f196976790f0911ab
