[INFO] fetching crate sozuctl 0.11.0...
[INFO] checking sozuctl-0.11.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate sozuctl 0.11.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate sozuctl 0.11.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sozuctl 0.11.0
[INFO] finished tweaking crates.io crate sozuctl 0.11.0
[INFO] tweaked toml for crates.io crate sozuctl 0.11.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pool v0.1.4
[INFO] [stderr]   Downloaded prettytable-rs v0.7.0
[INFO] [stderr]   Downloaded sozu-command-lib v0.11.48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bf3382bc5e51432390da4c48bce212f938847f154120ea01e419cf8cf2673be
[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" "4bf3382bc5e51432390da4c48bce212f938847f154120ea01e419cf8cf2673be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bf3382bc5e51432390da4c48bce212f938847f154120ea01e419cf8cf2673be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf3382bc5e51432390da4c48bce212f938847f154120ea01e419cf8cf2673be", kill_on_drop: false }`
[INFO] [stdout] 4bf3382bc5e51432390da4c48bce212f938847f154120ea01e419cf8cf2673be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 5decf18921b7bd66607734ab48c8f335344ce9bf76babcb0fe6420202585476b
[INFO] running `Command { std: "docker" "start" "-a" "5decf18921b7bd66607734ab48c8f335344ce9bf76babcb0fe6420202585476b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking pool v0.1.4
[INFO] [stderr]    Compiling sozuctl v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking pem v0.7.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking prettytable-rs v0.7.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking sozu-command-lib v0.11.48
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/command.rs:529:17
[INFO] [stdout]     |
[INFO] [stdout] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[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/command.rs:529:58
[INFO] [stdout]     |
[INFO] [stdout] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[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/command.rs:604:56
[INFO] [stdout]     |
[INFO] [stdout] 604 |               if let Some(CommandResponseData::Metrics(mut data)) = message.data {
[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/command.rs:947:19
[INFO] [stdout]     |
[INFO] [stdout] 947 |               let mut application_headers = vec!["id", "sticky_session", "https_redirect"];
[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/command.rs:950:19
[INFO] [stdout]     |
[INFO] [stdout] 950 |               let mut http_headers = vec!["id", "hostname", "path begin"];
[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/command.rs:953:19
[INFO] [stdout]     |
[INFO] [stdout] 953 |               let mut https_headers = vec!["id", "hostname", "path begin"];
[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/command.rs:956:19
[INFO] [stdout]     |
[INFO] [stdout] 956 |               let mut tcp_headers = vec!["id", "address"];
[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/command.rs:959:19
[INFO] [stdout]     |
[INFO] [stdout] 959 |               let mut backend_headers = vec!["backend id", "IP address", "Backup"];
[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/command.rs:974:25
[INFO] [stdout]     |
[INFO] [stdout] 974 |                     let mut entry = application_data.entry(app).or_insert(Vec::new());
[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/command.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |                       let mut entry = frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:983:27
[INFO] [stdout]     |
[INFO] [stdout] 983 |                       let mut entry = https_frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:988:27
[INFO] [stdout]     |
[INFO] [stdout] 988 |                       let mut entry = tcp_frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:993:27
[INFO] [stdout]     |
[INFO] [stdout] 993 |                       let mut entry = backend_data.entry(backend).or_insert(Vec::new());
[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/command.rs:529:17
[INFO] [stdout]     |
[INFO] [stdout] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[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/command.rs:529:58
[INFO] [stdout]     |
[INFO] [stdout] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[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/command.rs:604:56
[INFO] [stdout]     |
[INFO] [stdout] 604 |               if let Some(CommandResponseData::Metrics(mut data)) = message.data {
[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/command.rs:947:19
[INFO] [stdout]     |
[INFO] [stdout] 947 |               let mut application_headers = vec!["id", "sticky_session", "https_redirect"];
[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/command.rs:950:19
[INFO] [stdout]     |
[INFO] [stdout] 950 |               let mut http_headers = vec!["id", "hostname", "path begin"];
[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/command.rs:953:19
[INFO] [stdout]     |
[INFO] [stdout] 953 |               let mut https_headers = vec!["id", "hostname", "path begin"];
[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/command.rs:956:19
[INFO] [stdout]     |
[INFO] [stdout] 956 |               let mut tcp_headers = vec!["id", "address"];
[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/command.rs:959:19
[INFO] [stdout]     |
[INFO] [stdout] 959 |               let mut backend_headers = vec!["backend id", "IP address", "Backup"];
[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/command.rs:974:25
[INFO] [stdout]     |
[INFO] [stdout] 974 |                     let mut entry = application_data.entry(app).or_insert(Vec::new());
[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/command.rs:978:27
[INFO] [stdout]     |
[INFO] [stdout] 978 |                       let mut entry = frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:983:27
[INFO] [stdout]     |
[INFO] [stdout] 983 |                       let mut entry = https_frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:988:27
[INFO] [stdout]     |
[INFO] [stdout] 988 |                       let mut entry = tcp_frontend_data.entry(frontend).or_insert(Vec::new());
[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/command.rs:993:27
[INFO] [stdout]     |
[INFO] [stdout] 993 |                       let mut entry = backend_data.entry(backend).or_insert(Vec::new());
[INFO] [stdout]     |                           ----^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "5decf18921b7bd66607734ab48c8f335344ce9bf76babcb0fe6420202585476b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5decf18921b7bd66607734ab48c8f335344ce9bf76babcb0fe6420202585476b", kill_on_drop: false }`
[INFO] [stdout] 5decf18921b7bd66607734ab48c8f335344ce9bf76babcb0fe6420202585476b