[INFO] cloning repository https://github.com/lintanghui/rckit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lintanghui/rckit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flintanghui%2Frckit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flintanghui%2Frckit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 75df06e3a65834695b06f784d997e10c9de1b2c3 [INFO] testing lintanghui/rckit against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flintanghui%2Frckit" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lintanghui/rckit on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lintanghui/rckit [INFO] finished tweaking git repo https://github.com/lintanghui/rckit [INFO] tweaked toml for git repo https://github.com/lintanghui/rckit written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/lintanghui/rckit already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4a3a836bf1bc97e66807f55a0bd0198839f1de057b0d074037c7f1946ebe6e7b [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" "4a3a836bf1bc97e66807f55a0bd0198839f1de057b0d074037c7f1946ebe6e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4a3a836bf1bc97e66807f55a0bd0198839f1de057b0d074037c7f1946ebe6e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a3a836bf1bc97e66807f55a0bd0198839f1de057b0d074037c7f1946ebe6e7b", kill_on_drop: false }` [INFO] [stdout] 4a3a836bf1bc97e66807f55a0bd0198839f1de057b0d074037c7f1946ebe6e7b [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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", 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] 5fd9c7370521d1b35c581247a36a050af52007ce5b4f6304163d378243dea87c [INFO] running `Command { std: "docker" "start" "-a" "5fd9c7370521d1b35c581247a36a050af52007ce5b4f6304163d378243dea87c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.44 [INFO] [stderr] Compiling cfg-if v0.1.6 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling rand_core v0.3.0 [INFO] [stderr] Compiling byteorder v1.2.7 [INFO] [stderr] Compiling futures v0.1.25 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling lazycell v1.2.0 [INFO] [stderr] Compiling slab v0.4.1 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling lazy_static v1.2.0 [INFO] [stderr] Compiling unicode-normalization v0.1.7 [INFO] [stderr] Compiling either v1.5.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling ascii v0.9.1 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling redis v0.9.1 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling yaml-rust v0.3.5 [INFO] [stderr] Compiling sha1 v0.6.0 [INFO] [stderr] Compiling memchr v2.1.1 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling crossbeam-utils v0.6.1 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling owning_ref v0.4.0 [INFO] [stderr] Compiling textwrap v0.10.0 [INFO] [stderr] Compiling rand_core v0.2.2 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling smallvec v0.6.6 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.3.1 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling rand v0.5.5 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling bytes v0.4.11 [INFO] [stderr] Compiling clap v2.32.0 [INFO] [stderr] Compiling mio v0.6.16 [INFO] [stderr] Compiling combine v3.6.3 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling tokio-io v0.1.10 [INFO] [stderr] Compiling tokio-executor v0.1.5 [INFO] [stderr] Compiling tokio-codec v0.1.1 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling parking_lot v0.6.4 [INFO] [stderr] Compiling tokio-reactor v0.1.7 [INFO] [stderr] Compiling tokio-tcp v0.1.2 [INFO] [stderr] Compiling rckit v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | let mut master_count = clap::value_t!(sub_m.value_of("master"), usize).unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:1:9 [INFO] [stdout] | [INFO] [stdout] 1 | #![deny(warnings)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:129:21 [INFO] [stdout] | [INFO] [stdout] 129 | let mut slots = src_node.slots(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:147:21 [INFO] [stdout] | [INFO] [stdout] 147 | let mut dst_node = Node::new(dst.as_bytes()).unwrap(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:149:21 [INFO] [stdout] | [INFO] [stdout] 149 | let mut masters: Vec = dst_node [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/cluster.rs:314:13 [INFO] [stdout] | [INFO] [stdout] 314 | for mut info in infos.into_iter() { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/cluster.rs:368:17 [INFO] [stdout] | [INFO] [stdout] 368 | for mut info in info.lines() { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/cluster.rs:392:29 [INFO] [stdout] | [INFO] [stdout] 392 | let mut scope: Vec<&str> = migrate.split("->-").collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/cluster.rs:399:29 [INFO] [stdout] | [INFO] [stdout] 399 | let mut scope: Vec<&str> = migrate.split("-<-").collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/cluster.rs:404:29 [INFO] [stdout] | [INFO] [stdout] 404 | let mut scope: Vec<&str> = content.split('-').collect(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: variable does not need to be mutable [INFO] [stdout] --> src/create.rs:160:25 [INFO] [stdout] | [INFO] [stdout] 160 | let mut key = slave.ip.clone() + ":" + &slave.port; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 10 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rckit`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "5fd9c7370521d1b35c581247a36a050af52007ce5b4f6304163d378243dea87c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fd9c7370521d1b35c581247a36a050af52007ce5b4f6304163d378243dea87c", kill_on_drop: false }` [INFO] [stdout] 5fd9c7370521d1b35c581247a36a050af52007ce5b4f6304163d378243dea87c