[INFO] fetching crate rem-rs 0.0.1...
[INFO] testing rem-rs-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rem-rs 0.0.1 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate rem-rs 0.0.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rem-rs 0.0.1
[INFO] finished tweaking crates.io crate rem-rs 0.0.1
[INFO] tweaked toml for crates.io crate rem-rs 0.0.1 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate crates.io crate rem-rs 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 785bf4e070a7c3358fefc98454476d6040a01c57455f4869ee33bfe427a84939
[INFO] running `Command { std: "docker" "start" "-a" "785bf4e070a7c3358fefc98454476d6040a01c57455f4869ee33bfe427a84939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "785bf4e070a7c3358fefc98454476d6040a01c57455f4869ee33bfe427a84939", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785bf4e070a7c3358fefc98454476d6040a01c57455f4869ee33bfe427a84939", kill_on_drop: false }`
[INFO] [stdout] 785bf4e070a7c3358fefc98454476d6040a01c57455f4869ee33bfe427a84939
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3773ef4597c7b4090dd585728d7bc9d4d14bef4e7e936e060c8795beea92c095
[INFO] running `Command { std: "docker" "start" "-a" "3773ef4597c7b4090dd585728d7bc9d4d14bef4e7e936e060c8795beea92c095", kill_on_drop: false }`
[INFO] [stderr]    Compiling rem-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Entries`, `Entry`, `Select`
[INFO] [stdout]  --> src/command.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::select::{self, Entries, Entry, Select};
[INFO] [stdout]   |                           ^^^^^^^  ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeSet`
[INFO] [stdout]  --> src/command.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::BTreeSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/command.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> src/config.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:61:41
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:71:41
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:76:22
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:76:41
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]   --> src/command.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn into(self) -> Result<select::Pattern, Error> {
[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: `into`
[INFO] [stdout]   --> src/command.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn into(self) -> Result<select::Index, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]   --> src/command.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn into(self) -> Result<select::Time, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ThreePartRange`
[INFO] [stdout]    --> src/command.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     ThreePartRange(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidIndex`
[INFO] [stdout]    --> src/command.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     InvalidIndex(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/command.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]    --> src/command.rs:231:12
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn into(self) -> Result<select::Selector<'static>, Error> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/select.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(start: usize, end: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/select.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/select.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn push<S>(&mut self, sel: S)
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "3773ef4597c7b4090dd585728d7bc9d4d14bef4e7e936e060c8795beea92c095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3773ef4597c7b4090dd585728d7bc9d4d14bef4e7e936e060c8795beea92c095", kill_on_drop: false }`
[INFO] [stdout] 3773ef4597c7b4090dd585728d7bc9d4d14bef4e7e936e060c8795beea92c095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fec5cd9055557ab6d73781b6b1b49c1b6db6b1c0b8a853ef6eb94d0433470aa
[INFO] running `Command { std: "docker" "start" "-a" "6fec5cd9055557ab6d73781b6b1b49c1b6db6b1c0b8a853ef6eb94d0433470aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rem-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Entries`, `Entry`, `Select`
[INFO] [stdout]  --> src/command.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::select::{self, Entries, Entry, Select};
[INFO] [stdout]   |                           ^^^^^^^  ^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeSet`
[INFO] [stdout]  --> src/command.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::BTreeSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]  --> src/config.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::path::{Path, PathBuf};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:61:22
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:61:41
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:71:22
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:71:41
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `entries`
[INFO] [stdout]   --> src/select.rs:76:22
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `selection`
[INFO] [stdout]   --> src/select.rs:76:41
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stdout]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]   --> src/command.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn into(self) -> Result<select::Pattern, Error> {
[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: `into`
[INFO] [stdout]   --> src/command.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn into(self) -> Result<select::Index, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]   --> src/command.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     pub fn into(self) -> Result<select::Time, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ThreePartRange`
[INFO] [stdout]    --> src/command.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     ThreePartRange(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `InvalidIndex`
[INFO] [stdout]    --> src/command.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     InvalidIndex(String),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/command.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into`
[INFO] [stdout]    --> src/command.rs:231:12
[INFO] [stdout]     |
[INFO] [stdout] 231 |     pub fn into(self) -> Result<select::Selector<'static>, Error> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/select.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(start: usize, end: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/select.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/select.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn push<S>(&mut self, sel: S)
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "6fec5cd9055557ab6d73781b6b1b49c1b6db6b1c0b8a853ef6eb94d0433470aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fec5cd9055557ab6d73781b6b1b49c1b6db6b1c0b8a853ef6eb94d0433470aa", kill_on_drop: false }`
[INFO] [stdout] 6fec5cd9055557ab6d73781b6b1b49c1b6db6b1c0b8a853ef6eb94d0433470aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cdf06cf05920f4df8f9542ebad1268087700b10876e36f2f3ab18576639651f3
[INFO] running `Command { std: "docker" "start" "-a" "cdf06cf05920f4df8f9542ebad1268087700b10876e36f2f3ab18576639651f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `Entries`, `Entry`, `Select`
[INFO] [stderr]  --> src/command.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::select::{self, Entries, Entry, Select};
[INFO] [stderr]   |                           ^^^^^^^  ^^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeSet`
[INFO] [stderr]  --> src/command.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::collections::BTreeSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/config.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/config.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entries`
[INFO] [stderr]   --> src/select.rs:61:22
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `selection`
[INFO] [stderr]   --> src/select.rs:61:41
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entries`
[INFO] [stderr]   --> src/select.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `selection`
[INFO] [stderr]   --> src/select.rs:66:41
[INFO] [stderr]    |
[INFO] [stderr] 66 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entries`
[INFO] [stderr]   --> src/select.rs:71:22
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `selection`
[INFO] [stderr]   --> src/select.rs:71:41
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `entries`
[INFO] [stderr]   --> src/select.rs:76:22
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_entries`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `selection`
[INFO] [stderr]   --> src/select.rs:76:41
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn select(&self, entries: &Entries, selection: &mut BTreeSet<&Entry>) {
[INFO] [stderr]    |                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_selection`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into`
[INFO] [stderr]   --> src/command.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn into(self) -> Result<select::Pattern, Error> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into`
[INFO] [stderr]   --> src/command.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn into(self) -> Result<select::Index, Error> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into`
[INFO] [stderr]   --> src/command.rs:66:12
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn into(self) -> Result<select::Time, Error> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ThreePartRange`
[INFO] [stderr]    --> src/command.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     ThreePartRange(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidIndex`
[INFO] [stderr]    --> src/command.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     InvalidIndex(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/command.rs:211:12
[INFO] [stderr]     |
[INFO] [stderr] 211 |     pub fn new() -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `into`
[INFO] [stderr]    --> src/command.rs:231:12
[INFO] [stderr]     |
[INFO] [stderr] 231 |     pub fn into(self) -> Result<select::Selector<'static>, Error> {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/select.rs:28:12
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn new(start: usize, end: usize) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/select.rs:49:12
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn new() -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `push`
[INFO] [stderr]   --> src/select.rs:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn push<S>(&mut self, sel: S)
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rem-rs` (bin "rem-rs" test) generated 22 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rem_rs-6d97cd846c86fcff)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test command::test::flags_are_detected ... ok
[INFO] [stdout] test command::test::command_is_detected ... ok
[INFO] [stdout] test command::test::selectors_capture ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cdf06cf05920f4df8f9542ebad1268087700b10876e36f2f3ab18576639651f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf06cf05920f4df8f9542ebad1268087700b10876e36f2f3ab18576639651f3", kill_on_drop: false }`
[INFO] [stdout] cdf06cf05920f4df8f9542ebad1268087700b10876e36f2f3ab18576639651f3