[INFO] fetching crate riquid 0.0.1...
[INFO] checking riquid-0.0.1 against beta for pr-78714
[INFO] extracting crate riquid 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate riquid 0.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate riquid 0.0.1
[INFO] finished tweaking crates.io crate riquid 0.0.1
[INFO] tweaked toml for crates.io crate riquid 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00001de1657d063e92694b1e79d2dbab8164f906084e8aca4492c51e23161c2e
[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" "00001de1657d063e92694b1e79d2dbab8164f906084e8aca4492c51e23161c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00001de1657d063e92694b1e79d2dbab8164f906084e8aca4492c51e23161c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00001de1657d063e92694b1e79d2dbab8164f906084e8aca4492c51e23161c2e", kill_on_drop: false }`
[INFO] [stdout] 00001de1657d063e92694b1e79d2dbab8164f906084e8aca4492c51e23161c2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab8dad7e658a2f8082f404f68a79417c7428254762f28bd71b78c25e811453e
[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" "4ab8dad7e658a2f8082f404f68a79417c7428254762f28bd71b78c25e811453e", kill_on_drop: false }`
[INFO] [stderr]     Checking riquid v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/scanner.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |         string.len() - string.trim_left().len()
[INFO] [stdout]    |                               ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/scanner.rs:70:31
[INFO] [stdout]    |
[INFO] [stdout] 70 |         string.len() - string.trim_left().len()
[INFO] [stdout]    |                               ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Scanner`
[INFO] [stdout]  --> src/scanner.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Scanner<'t> {
[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: `new`
[INFO] [stdout]   --> src/scanner.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new<'a>(source: &'a str) -> Scanner<'a> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `position`
[INFO] [stdout]   --> src/scanner.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn position(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_eos`
[INFO] [stdout]   --> src/scanner.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn is_eos(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]   --> src/scanner.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn skip(&self, n: usize) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rest`
[INFO] [stdout]   --> src/scanner.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn rest(&self) -> Option<&str> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_char`
[INFO] [stdout]   --> src/scanner.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn get_char(&self) -> Option<&str> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `scan`
[INFO] [stdout]   --> src/scanner.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn scan(&self, pattern: &::regex::Regex) -> Option<&str> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_match`
[INFO] [stdout]   --> src/scanner.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn get_match<'a>(&'a self, source: &'a str, captures: &::regex::Captures) -> Option<&str> {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `leading_chars`
[INFO] [stdout]   --> src/scanner.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 |     fn leading_chars(&self, string: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `raw`
[INFO] [stdout]   --> src/scanner.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn raw(&self) -> &str {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "4ab8dad7e658a2f8082f404f68a79417c7428254762f28bd71b78c25e811453e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab8dad7e658a2f8082f404f68a79417c7428254762f28bd71b78c25e811453e", kill_on_drop: false }`
[INFO] [stdout] 4ab8dad7e658a2f8082f404f68a79417c7428254762f28bd71b78c25e811453e