[INFO] crate sozuctl 0.11.0 is already in cache
[INFO] extracting crate sozuctl 0.11.0 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/sozuctl/0.11.0
[INFO] extracting crate sozuctl 0.11.0 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/sozuctl/0.11.0
[INFO] validating manifest of sozuctl-0.11.0 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sozuctl-0.11.0 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sozuctl-0.11.0
[INFO] finished frobbing sozuctl-0.11.0
[INFO] frobbed toml for sozuctl-0.11.0 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/sozuctl/0.11.0/Cargo.toml
[INFO] started frobbing sozuctl-0.11.0
[INFO] finished frobbing sozuctl-0.11.0
[INFO] frobbed toml for sozuctl-0.11.0 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/sozuctl/0.11.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sozuctl-0.11.0 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-6/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/sozuctl/0.11.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa2e0b7f28c4b86d057f2542c7376f0f843d374de23b4867c9f6f2a61d683411
[INFO] running `"docker" "start" "-a" "aa2e0b7f28c4b86d057f2542c7376f0f843d374de23b4867c9f6f2a61d683411"`
[INFO] [stderr]     Checking pool v0.1.4
[INFO] [stderr]    Compiling sozuctl v0.11.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking prettytable-rs v0.7.0
[INFO] [stderr]     Checking pem v0.5.1
[INFO] [stderr]     Checking sozu-command-lib v0.11.0
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:529:17
[INFO] [stderr]     |
[INFO] [stderr] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:529:58
[INFO] [stderr]     |
[INFO] [stderr] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[INFO] [stderr]     |                                                          ----^^^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:604:56
[INFO] [stderr]     |
[INFO] [stderr] 604 |               if let Some(CommandResponseData::Metrics(mut data)) = message.data {
[INFO] [stderr]     |                                                        ----^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:947:19
[INFO] [stderr]     |
[INFO] [stderr] 947 |               let mut application_headers = vec!["id", "sticky_session", "https_redirect"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:950:19
[INFO] [stderr]     |
[INFO] [stderr] 950 |               let mut http_headers = vec!["id", "hostname", "path begin"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:953:19
[INFO] [stderr]     |
[INFO] [stderr] 953 |               let mut https_headers = vec!["id", "hostname", "path begin"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:956:19
[INFO] [stderr]     |
[INFO] [stderr] 956 |               let mut tcp_headers = vec!["id", "address"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:959:19
[INFO] [stderr]     |
[INFO] [stderr] 959 |               let mut backend_headers = vec!["backend id", "IP address", "Backup"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:974:25
[INFO] [stderr]     |
[INFO] [stderr] 974 |                     let mut entry = application_data.entry(app).or_insert(Vec::new());
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |                       let mut entry = frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:983:27
[INFO] [stderr]     |
[INFO] [stderr] 983 |                       let mut entry = https_frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:988:27
[INFO] [stderr]     |
[INFO] [stderr] 988 |                       let mut entry = tcp_frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:993:27
[INFO] [stderr]     |
[INFO] [stderr] 993 |                       let mut entry = backend_data.entry(backend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:529:17
[INFO] [stderr]     |
[INFO] [stderr] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[INFO] [stderr]     |                 ----^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:529:58
[INFO] [stderr]     |
[INFO] [stderr] 529 |             let mut h2: HashMap<u32, String> = if let Ok(mut state) = st.try_lock() {
[INFO] [stderr]     |                                                          ----^^^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:604:56
[INFO] [stderr]     |
[INFO] [stderr] 604 |               if let Some(CommandResponseData::Metrics(mut data)) = message.data {
[INFO] [stderr]     |                                                        ----^^^^
[INFO] [stderr]     |                                                        |
[INFO] [stderr]     |                                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:947:19
[INFO] [stderr]     |
[INFO] [stderr] 947 |               let mut application_headers = vec!["id", "sticky_session", "https_redirect"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:950:19
[INFO] [stderr]     |
[INFO] [stderr] 950 |               let mut http_headers = vec!["id", "hostname", "path begin"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:953:19
[INFO] [stderr]     |
[INFO] [stderr] 953 |               let mut https_headers = vec!["id", "hostname", "path begin"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:956:19
[INFO] [stderr]     |
[INFO] [stderr] 956 |               let mut tcp_headers = vec!["id", "address"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:959:19
[INFO] [stderr]     |
[INFO] [stderr] 959 |               let mut backend_headers = vec!["backend id", "IP address", "Backup"];
[INFO] [stderr]     |                   ----^^^^^^^^^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:974:25
[INFO] [stderr]     |
[INFO] [stderr] 974 |                     let mut entry = application_data.entry(app).or_insert(Vec::new());
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:978:27
[INFO] [stderr]     |
[INFO] [stderr] 978 |                       let mut entry = frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:983:27
[INFO] [stderr]     |
[INFO] [stderr] 983 |                       let mut entry = https_frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:988:27
[INFO] [stderr]     |
[INFO] [stderr] 988 |                       let mut entry = tcp_frontend_data.entry(frontend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/command.rs:993:27
[INFO] [stderr]     |
[INFO] [stderr] 993 |                       let mut entry = backend_data.entry(backend).or_insert(Vec::new());
[INFO] [stderr]     |                           ----^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.64s
[INFO] running `"docker" "inspect" "aa2e0b7f28c4b86d057f2542c7376f0f843d374de23b4867c9f6f2a61d683411"`
[INFO] running `"docker" "rm" "-f" "aa2e0b7f28c4b86d057f2542c7376f0f843d374de23b4867c9f6f2a61d683411"`
[INFO] [stdout] aa2e0b7f28c4b86d057f2542c7376f0f843d374de23b4867c9f6f2a61d683411