[INFO] cloning repository https://github.com/zacbrown/rusty-netconn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zacbrown/rusty-netconn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f0b0c5ea4312002fc4eb75d71b67fd8104f51dd5 [INFO] checking zacbrown/rusty-netconn against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzacbrown%2Frusty-netconn" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zacbrown/rusty-netconn on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zacbrown/rusty-netconn [INFO] finished tweaking git repo https://github.com/zacbrown/rusty-netconn [INFO] tweaked toml for git repo https://github.com/zacbrown/rusty-netconn written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/zacbrown/rusty-netconn already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syntex_errors v0.42.0 [INFO] [stderr] Downloaded pnet_macros v0.21.0 [INFO] [stderr] Downloaded tokio-threadpool v0.1.2 [INFO] [stderr] Downloaded scoped-tls v0.1.1 [INFO] [stderr] Downloaded bytes v0.4.6 [INFO] [stderr] Downloaded syntex_syntax v0.42.0 [INFO] [stderr] Downloaded pcap v0.7.0 [INFO] [stderr] Downloaded pnet_sys v0.21.0 [INFO] [stderr] Downloaded regex-syntax v0.5.5 [INFO] [stderr] Downloaded pnet_packet v0.21.0 [INFO] [stderr] Downloaded syntex_pos v0.42.0 [INFO] [stderr] Downloaded syntex v0.42.2 [INFO] [stderr] Downloaded pnet v0.21.0 [INFO] [stderr] Downloaded pnet_macros_support v0.21.0 [INFO] [stderr] Downloaded tokio v0.1.5 [INFO] [stderr] Downloaded tokio-timer v0.2.1 [INFO] [stderr] Downloaded pnet_datalink v0.21.0 [INFO] [stderr] Downloaded pnet_base v0.21.0 [INFO] [stderr] Downloaded pnet_transport v0.21.0 [INFO] [stderr] Downloaded tokio-io v0.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c3ea61679e040de133659de80af855674ff95e1354092613b60d341766abee0a [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" "c3ea61679e040de133659de80af855674ff95e1354092613b60d341766abee0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c3ea61679e040de133659de80af855674ff95e1354092613b60d341766abee0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c3ea61679e040de133659de80af855674ff95e1354092613b60d341766abee0a", kill_on_drop: false }` [INFO] [stdout] c3ea61679e040de133659de80af855674ff95e1354092613b60d341766abee0a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--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] 360ae0bdbb32f47a49de4b14c6d5962e792a65699e6b5f54c8b2c150c29a79a6 [INFO] running `Command { std: "docker" "start" "-a" "360ae0bdbb32f47a49de4b14c6d5962e792a65699e6b5f54c8b2c150c29a79a6", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Checking slab v0.4.0 [INFO] [stderr] Checking lazycell v0.6.0 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking pnet_base v0.21.0 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling pnet v0.21.0 [INFO] [stderr] Compiling pcap v0.7.0 [INFO] [stderr] Checking ipnetwork v0.12.8 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking encode_unicode v0.3.1 [INFO] [stderr] Checking pnet_sys v0.21.0 [INFO] [stderr] Checking memchr v1.0.2 [INFO] [stderr] Compiling memchr v2.0.1 [INFO] [stderr] Compiling regex-syntax v0.5.5 [INFO] [stderr] Compiling log v0.4.1 [INFO] [stderr] Checking net2 v0.2.32 [INFO] [stderr] Checking crossbeam-utils v0.3.2 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Checking bytes v0.4.6 [INFO] [stderr] Checking tokio-timer v0.2.1 [INFO] [stderr] Checking pnet_macros_support v0.21.0 [INFO] [stderr] Compiling aho-corasick v0.6.4 [INFO] [stderr] Checking pnet_datalink v0.21.0 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Checking mio v0.6.14 [INFO] [stderr] Compiling thread_local v0.3.5 [INFO] [stderr] Checking crossbeam-epoch v0.4.1 [INFO] [stderr] Checking tokio-io v0.1.6 [INFO] [stderr] Checking crossbeam-deque v0.3.0 [INFO] [stderr] Checking tokio-reactor v0.1.1 [INFO] [stderr] Checking tokio-threadpool v0.1.2 [INFO] [stderr] Checking tokio-tcp v0.1.0 [INFO] [stderr] Checking tokio-udp v0.1.0 [INFO] [stderr] Checking tokio v0.1.5 [INFO] [stderr] Checking csv v0.15.0 [INFO] [stderr] Compiling syntex_pos v0.42.0 [INFO] [stderr] Checking prettytable-rs v0.6.7 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Compiling syntex_errors v0.42.0 [INFO] [stderr] Compiling regex v0.2.10 [INFO] [stderr] Compiling syntex_syntax v0.42.0 [INFO] [stderr] Compiling syntex v0.42.2 [INFO] [stderr] Compiling pnet_macros v0.21.0 [INFO] [stderr] Compiling pnet_packet v0.21.0 [INFO] [stderr] Checking pnet_transport v0.21.0 [INFO] [stderr] Checking rusty-netconns v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:129:13 [INFO] [stdout] | [INFO] [stdout] 129 | let mut stats = { [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:183:13 [INFO] [stdout] | [INFO] [stdout] 183 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:251:13 [INFO] [stdout] | [INFO] [stdout] 251 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:129:13 [INFO] [stdout] | [INFO] [stdout] 129 | let mut stats = { [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:183:13 [INFO] [stdout] | [INFO] [stdout] 183 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:217:13 [INFO] [stdout] | [INFO] [stdout] 217 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:251:13 [INFO] [stdout] | [INFO] [stdout] 251 | let mut stats = { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 18s [INFO] running `Command { std: "docker" "inspect" "360ae0bdbb32f47a49de4b14c6d5962e792a65699e6b5f54c8b2c150c29a79a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "360ae0bdbb32f47a49de4b14c6d5962e792a65699e6b5f54c8b2c150c29a79a6", kill_on_drop: false }` [INFO] [stdout] 360ae0bdbb32f47a49de4b14c6d5962e792a65699e6b5f54c8b2c150c29a79a6