[INFO] cloning repository https://github.com/iporsut/rust-utf8count
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iporsut/rust-utf8count" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiporsut%2Frust-utf8count", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiporsut%2Frust-utf8count'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd14e4bd71cb7063b9c4f283580c03d08b2c98bc
[INFO] checking iporsut/rust-utf8count against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiporsut%2Frust-utf8count" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iporsut/rust-utf8count on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iporsut/rust-utf8count
[INFO] finished tweaking git repo https://github.com/iporsut/rust-utf8count
[INFO] tweaked toml for git repo https://github.com/iporsut/rust-utf8count written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/iporsut/rust-utf8count already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6cbfae83e5bdb60dec1453b0d53bd48258661eb203660fa4124f89b31f33bc1
[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" "f6cbfae83e5bdb60dec1453b0d53bd48258661eb203660fa4124f89b31f33bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6cbfae83e5bdb60dec1453b0d53bd48258661eb203660fa4124f89b31f33bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6cbfae83e5bdb60dec1453b0d53bd48258661eb203660fa4124f89b31f33bc1", kill_on_drop: false }`
[INFO] [stdout] f6cbfae83e5bdb60dec1453b0d53bd48258661eb203660fa4124f89b31f33bc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78cc7068586b8c5314e1302eb1b77a205c8eb9a7b080645029200a4f105ea22c
[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" "78cc7068586b8c5314e1302eb1b77a205c8eb9a7b080645029200a4f105ea22c", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8count v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stdout]   --> src/main.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     println!("{}", s.trim_right().chars().count());
[INFO] [stdout]    |                      ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stdout]   --> src/main.rs:10:22
[INFO] [stdout]    |
[INFO] [stdout] 10 |     println!("{}", s.trim_right().chars().count());
[INFO] [stdout]    |                      ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "78cc7068586b8c5314e1302eb1b77a205c8eb9a7b080645029200a4f105ea22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78cc7068586b8c5314e1302eb1b77a205c8eb9a7b080645029200a4f105ea22c", kill_on_drop: false }`
[INFO] [stdout] 78cc7068586b8c5314e1302eb1b77a205c8eb9a7b080645029200a4f105ea22c