[INFO] cloning repository https://github.com/LainLayer/rust-cli-irc-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LainLayer/rust-cli-irc-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLainLayer%2Frust-cli-irc-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLainLayer%2Frust-cli-irc-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cba669532572d3d12761302865b34bf1aeaeb4fb
[INFO] checking LainLayer/rust-cli-irc-client against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLainLayer%2Frust-cli-irc-client" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LainLayer/rust-cli-irc-client on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LainLayer/rust-cli-irc-client
[INFO] finished tweaking git repo https://github.com/LainLayer/rust-cli-irc-client
[INFO] tweaked toml for git repo https://github.com/LainLayer/rust-cli-irc-client written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/LainLayer/rust-cli-irc-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49337dfa7a624e9a0c1a52de3f3fe3e917af2f9bc8a6559ea166bad6ed501e09
[INFO] running `Command { std: "docker" "start" "-a" "49337dfa7a624e9a0c1a52de3f3fe3e917af2f9bc8a6559ea166bad6ed501e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49337dfa7a624e9a0c1a52de3f3fe3e917af2f9bc8a6559ea166bad6ed501e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49337dfa7a624e9a0c1a52de3f3fe3e917af2f9bc8a6559ea166bad6ed501e09", kill_on_drop: false }`
[INFO] [stdout] 49337dfa7a624e9a0c1a52de3f3fe3e917af2f9bc8a6559ea166bad6ed501e09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb303a088f69f1a10aae9bf6eff0a8572a91cae464a95f645dc5e16647efbefe
[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" "bb303a088f69f1a10aae9bf6eff0a8572a91cae464a95f645dc5e16647efbefe", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking term-painter v0.3.0
[INFO] [stderr]     Checking irc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/color_string.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::term_painter::{ToStyle, Color};
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]  --> src/color_string.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use self::term_painter::{ToStyle, Color};
[INFO] [stdout]   |                                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/helper.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn parse_local(s: String) -> String {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/helper.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn parse_local(s: String) -> String {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_local`
[INFO] [stdout]   --> src/helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn parse_local(s: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_local`
[INFO] [stdout]   --> src/helper.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn parse_local(s: String) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "bb303a088f69f1a10aae9bf6eff0a8572a91cae464a95f645dc5e16647efbefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb303a088f69f1a10aae9bf6eff0a8572a91cae464a95f645dc5e16647efbefe", kill_on_drop: false }`
[INFO] [stdout] bb303a088f69f1a10aae9bf6eff0a8572a91cae464a95f645dc5e16647efbefe