[INFO] cloning repository https://github.com/davidpeklak/cargo-stdx-check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidpeklak/cargo-stdx-check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Fcargo-stdx-check", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Fcargo-stdx-check'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b0beb957152519476a52be3bba72611dc4064fa
[INFO] checking davidpeklak/cargo-stdx-check against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidpeklak%2Fcargo-stdx-check" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/davidpeklak/cargo-stdx-check on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/davidpeklak/cargo-stdx-check
[INFO] finished tweaking git repo https://github.com/davidpeklak/cargo-stdx-check
[INFO] tweaked toml for git repo https://github.com/davidpeklak/cargo-stdx-check written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/davidpeklak/cargo-stdx-check already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ac06bc6320188c95f594055d9709c357a3694bb17b69c17ac1cca051b51e34c
[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" "7ac06bc6320188c95f594055d9709c357a3694bb17b69c17ac1cca051b51e34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ac06bc6320188c95f594055d9709c357a3694bb17b69c17ac1cca051b51e34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ac06bc6320188c95f594055d9709c357a3694bb17b69c17ac1cca051b51e34c", kill_on_drop: false }`
[INFO] [stdout] 7ac06bc6320188c95f594055d9709c357a3694bb17b69c17ac1cca051b51e34c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b6e78b3f9ee9aa14c5896f5377a72c149933103ce94f6a5873304529f3224bc
[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" "9b6e78b3f9ee9aa14c5896f5377a72c149933103ce94f6a5873304529f3224bc", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.24
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking rustc-demangle v0.1.4
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking cfg-if v0.1.1
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking toml v0.4.2
[INFO] [stderr]     Checking docopt v0.8.1
[INFO] [stderr]     Checking backtrace v0.3.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking cargo-stdx-check v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let mut set = grouped.entry(name).or_insert(BTreeSet::new());
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |         let mut set = grouped.entry(name).or_insert(BTreeSet::new());
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 33.67s
[INFO] running `Command { std: "docker" "inspect" "9b6e78b3f9ee9aa14c5896f5377a72c149933103ce94f6a5873304529f3224bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6e78b3f9ee9aa14c5896f5377a72c149933103ce94f6a5873304529f3224bc", kill_on_drop: false }`
[INFO] [stdout] 9b6e78b3f9ee9aa14c5896f5377a72c149933103ce94f6a5873304529f3224bc