[INFO] cloning repository https://github.com/ayourtch/flex-sftp-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ayourtch/flex-sftp-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fflex-sftp-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fflex-sftp-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 520a5b5620c01b3036d5e65b303bac2193cb5abf
[INFO] checking ayourtch/flex-sftp-server against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fflex-sftp-server" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ayourtch/flex-sftp-server on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ayourtch/flex-sftp-server
[INFO] finished tweaking git repo https://github.com/ayourtch/flex-sftp-server
[INFO] tweaked toml for git repo https://github.com/ayourtch/flex-sftp-server written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ayourtch/flex-sftp-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syslog v4.0.1
[INFO] [stderr]   Downloaded popol v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95e1789072e82166fb2879ae2660b5df86c36d7e2052d037a6468998e6d6dbbb
[INFO] running `Command { std: "docker" "start" "-a" "95e1789072e82166fb2879ae2660b5df86c36d7e2052d037a6468998e6d6dbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95e1789072e82166fb2879ae2660b5df86c36d7e2052d037a6468998e6d6dbbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e1789072e82166fb2879ae2660b5df86c36d7e2052d037a6468998e6d6dbbb", kill_on_drop: false }`
[INFO] [stdout] 95e1789072e82166fb2879ae2660b5df86c36d7e2052d037a6468998e6d6dbbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 045221f8109527a7954525eda2f3d36853e150dc26c5641f07a31cb5d398cf30
[INFO] running `Command { std: "docker" "start" "-a" "045221f8109527a7954525eda2f3d36853e150dc26c5641f07a31cb5d398cf30", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking popol v0.3.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking flex-sftp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SetLoggerError`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{LevelFilter, SetLoggerError};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SetLoggerError`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{LevelFilter, SetLoggerError};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         for i in 0..count {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         for i in 0..count {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `atype`
[INFO] [stdout]    --> src/main.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let atype = deq_get_cstring(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_atype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `adata`
[INFO] [stdout]    --> src/main.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let adata = deq_get_string(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_adata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extended_id`
[INFO] [stdout]    --> src/main.rs:350:36
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn process_extended(&mut self, extended_id: u32) {}
[INFO] [stdout]     |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extended_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn status_to_message(&mut self, status: u32) -> &'static str {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `atype`
[INFO] [stdout]    --> src/main.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let atype = deq_get_cstring(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_atype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:403:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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: unused variable: `adata`
[INFO] [stdout]    --> src/main.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let adata = deq_get_string(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_adata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:504:40
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extended_id`
[INFO] [stdout]    --> src/main.rs:350:36
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn process_extended(&mut self, extended_id: u32) {}
[INFO] [stdout]     |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extended_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:513:33
[INFO] [stdout]     |
[INFO] [stdout] 513 | ...                   Err(err) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn status_to_message(&mut self, status: u32) -> &'static str {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:520:32
[INFO] [stdout]     |
[INFO] [stdout] 520 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:564:17
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:564:13
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[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:403:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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:612:13
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:504:40
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:513:33
[INFO] [stdout]     |
[INFO] [stdout] 513 | ...                   Err(err) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:520:32
[INFO] [stdout]     |
[INFO] [stdout] 520 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:564:17
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:564:13
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[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:612:13
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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:632:13
[INFO] [stdout]     |
[INFO] [stdout] 632 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:686:17
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:820:18
[INFO] [stdout]     |
[INFO] [stdout] 820 |             for (key, event) in events.iter() {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deq_get_u16` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deq_get_u16(ideq: &mut VecDeque<u8>) -> Option<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXF_EXCL` is never used
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const SSH2_FXF_EXCL: u32 = 0x00000020;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_STAT_VERSION_0` is never used
[INFO] [stdout]    --> src/main.rs:214:7
[INFO] [stdout]     |
[INFO] [stdout] 214 | const SSH2_FXP_STAT_VERSION_0: u8 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:216:7
[INFO] [stdout]     |
[INFO] [stdout] 216 | const SSH2_FXP_SETSTAT: u8 = 9;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_FSETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:217:7
[INFO] [stdout]     |
[INFO] [stdout] 217 | const SSH2_FXP_FSETSTAT: u8 = 10;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_REMOVE` is never used
[INFO] [stdout]    --> src/main.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 | const SSH2_FXP_REMOVE: u8 = 13;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_MKDIR` is never used
[INFO] [stdout]    --> src/main.rs:221:7
[INFO] [stdout]     |
[INFO] [stdout] 221 | const SSH2_FXP_MKDIR: u8 = 14;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RMDIR` is never used
[INFO] [stdout]    --> src/main.rs:222:7
[INFO] [stdout]     |
[INFO] [stdout] 222 | const SSH2_FXP_RMDIR: u8 = 15;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RENAME` is never used
[INFO] [stdout]    --> src/main.rs:225:7
[INFO] [stdout]     |
[INFO] [stdout] 225 | const SSH2_FXP_RENAME: u8 = 18;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SYMLINK` is never used
[INFO] [stdout]    --> src/main.rs:227:7
[INFO] [stdout]     |
[INFO] [stdout] 227 | const SSH2_FXP_SYMLINK: u8 = 20;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:632:13
[INFO] [stdout]     |
[INFO] [stdout] 632 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_DATA` is never used
[INFO] [stdout]    --> src/main.rs:233:7
[INFO] [stdout]     |
[INFO] [stdout] 233 | const SSH2_FXP_DATA: u8 = 103;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:686:17
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_EXTENDED_REPLY` is never used
[INFO] [stdout]    --> src/main.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const SSH2_FXP_EXTENDED_REPLY: u8 = 201;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_SUCH_FILE` is never used
[INFO] [stdout]    --> src/main.rs:243:7
[INFO] [stdout]     |
[INFO] [stdout] 243 | const SSH2_FX_NO_SUCH_FILE: u32 = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:820:18
[INFO] [stdout]     |
[INFO] [stdout] 820 |             for (key, event) in events.iter() {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_BAD_MESSAGE` is never used
[INFO] [stdout]    --> src/main.rs:246:7
[INFO] [stdout]     |
[INFO] [stdout] 246 | const SSH2_FX_BAD_MESSAGE: u32 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deq_get_u16` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deq_get_u16(ideq: &mut VecDeque<u8>) -> Option<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_CONNECTION` is never used
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 | const SSH2_FX_NO_CONNECTION: u32 = 6;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXF_EXCL` is never used
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const SSH2_FXF_EXCL: u32 = 0x00000020;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_CONNECTION_LOST` is never used
[INFO] [stdout]    --> src/main.rs:248:7
[INFO] [stdout]     |
[INFO] [stdout] 248 | const SSH2_FX_CONNECTION_LOST: u32 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_STAT_VERSION_0` is never used
[INFO] [stdout]    --> src/main.rs:214:7
[INFO] [stdout]     |
[INFO] [stdout] 214 | const SSH2_FXP_STAT_VERSION_0: u8 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_OP_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 | const SSH2_FX_OP_UNSUPPORTED: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:216:7
[INFO] [stdout]     |
[INFO] [stdout] 216 | const SSH2_FXP_SETSTAT: u8 = 9;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_MAX` is never used
[INFO] [stdout]    --> src/main.rs:250:7
[INFO] [stdout]     |
[INFO] [stdout] 250 | const SSH2_FX_MAX: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_FSETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:217:7
[INFO] [stdout]     |
[INFO] [stdout] 217 | const SSH2_FXP_FSETSTAT: u8 = 10;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_REMOVE` is never used
[INFO] [stdout]    --> src/main.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 | const SSH2_FXP_REMOVE: u8 = 13;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 252 | enum HandleObj {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 255 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_MKDIR` is never used
[INFO] [stdout]    --> src/main.rs:221:7
[INFO] [stdout]     |
[INFO] [stdout] 221 | const SSH2_FXP_MKDIR: u8 = 14;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RMDIR` is never used
[INFO] [stdout]    --> src/main.rs:222:7
[INFO] [stdout]     |
[INFO] [stdout] 222 | const SSH2_FXP_RMDIR: u8 = 15;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | struct ScpHandle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 261 |     path: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RENAME` is never used
[INFO] [stdout]    --> src/main.rs:225:7
[INFO] [stdout]     |
[INFO] [stdout] 225 | const SSH2_FXP_RENAME: u8 = 18;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SYMLINK` is never used
[INFO] [stdout]    --> src/main.rs:227:7
[INFO] [stdout]     |
[INFO] [stdout] 227 | const SSH2_FXP_SYMLINK: u8 = 20;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_DATA` is never used
[INFO] [stdout]    --> src/main.rs:233:7
[INFO] [stdout]     |
[INFO] [stdout] 233 | const SSH2_FXP_DATA: u8 = 103;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_EXTENDED_REPLY` is never used
[INFO] [stdout]    --> src/main.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const SSH2_FXP_EXTENDED_REPLY: u8 = 201;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:839:44
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!(err),
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_SUCH_FILE` is never used
[INFO] [stdout]    --> src/main.rs:243:7
[INFO] [stdout]     |
[INFO] [stdout] 243 | const SSH2_FX_NO_SUCH_FILE: u32 = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_BAD_MESSAGE` is never used
[INFO] [stdout]    --> src/main.rs:246:7
[INFO] [stdout]     |
[INFO] [stdout] 246 | const SSH2_FX_BAD_MESSAGE: u32 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:855:29
[INFO] [stdout]     |
[INFO] [stdout] 855 | ...                   io::stdout().flush();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 855 |                             let _ = io::stdout().flush();
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_CONNECTION` is never used
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 | const SSH2_FX_NO_CONNECTION: u32 = 6;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_CONNECTION_LOST` is never used
[INFO] [stdout]    --> src/main.rs:248:7
[INFO] [stdout]     |
[INFO] [stdout] 248 | const SSH2_FX_CONNECTION_LOST: u32 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_OP_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 | const SSH2_FX_OP_UNSUPPORTED: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 | /     log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout] 883 | |         .map(|()| log::set_max_level(LevelFilter::Debug));
[INFO] [stdout]     | |_________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 882 |     let _ = log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_MAX` is never used
[INFO] [stdout]    --> src/main.rs:250:7
[INFO] [stdout]     |
[INFO] [stdout] 250 | const SSH2_FX_MAX: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 252 | enum HandleObj {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 255 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | struct ScpHandle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 261 |     path: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:839:44
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!(err),
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:855:29
[INFO] [stdout]     |
[INFO] [stdout] 855 | ...                   io::stdout().flush();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 855 |                             let _ = io::stdout().flush();
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 | /     log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout] 883 | |         .map(|()| log::set_max_level(LevelFilter::Debug));
[INFO] [stdout]     | |_________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 882 |     let _ = log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "045221f8109527a7954525eda2f3d36853e150dc26c5641f07a31cb5d398cf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "045221f8109527a7954525eda2f3d36853e150dc26c5641f07a31cb5d398cf30", kill_on_drop: false }`
[INFO] [stdout] 045221f8109527a7954525eda2f3d36853e150dc26c5641f07a31cb5d398cf30
[INFO] checking ayourtch/flex-sftp-server against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fayourtch%2Fflex-sftp-server" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ayourtch/flex-sftp-server on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ayourtch/flex-sftp-server
[INFO] finished tweaking git repo https://github.com/ayourtch/flex-sftp-server
[INFO] tweaked toml for git repo https://github.com/ayourtch/flex-sftp-server written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ayourtch/flex-sftp-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d5dd9c1a0f98dc92b507c518ce35a0188d7d23e55b2f91d44a47ba8d5593ed6
[INFO] running `Command { std: "docker" "start" "-a" "9d5dd9c1a0f98dc92b507c518ce35a0188d7d23e55b2f91d44a47ba8d5593ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d5dd9c1a0f98dc92b507c518ce35a0188d7d23e55b2f91d44a47ba8d5593ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5dd9c1a0f98dc92b507c518ce35a0188d7d23e55b2f91d44a47ba8d5593ed6", kill_on_drop: false }`
[INFO] [stdout] 9d5dd9c1a0f98dc92b507c518ce35a0188d7d23e55b2f91d44a47ba8d5593ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0307de9e46c54166211535f3af0a7fcc5ef575be953cc4af204953e791250076
[INFO] running `Command { std: "docker" "start" "-a" "0307de9e46c54166211535f3af0a7fcc5ef575be953cc4af204953e791250076", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking popol v0.3.0
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking flex-sftp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SetLoggerError`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{LevelFilter, SetLoggerError};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SetLoggerError`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{LevelFilter, SetLoggerError};
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         for i in 0..count {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `atype`
[INFO] [stdout]    --> src/main.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let atype = deq_get_cstring(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_atype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `adata`
[INFO] [stdout]    --> src/main.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let adata = deq_get_string(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_adata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extended_id`
[INFO] [stdout]    --> src/main.rs:350:36
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn process_extended(&mut self, extended_id: u32) {}
[INFO] [stdout]     |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extended_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn status_to_message(&mut self, status: u32) -> &'static str {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:403:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:504:40
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:513:33
[INFO] [stdout]     |
[INFO] [stdout] 513 | ...                   Err(err) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:520:32
[INFO] [stdout]     |
[INFO] [stdout] 520 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:564:17
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:564:13
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[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:612:13
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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:632:13
[INFO] [stdout]     |
[INFO] [stdout] 632 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:686:17
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:820:18
[INFO] [stdout]     |
[INFO] [stdout] 820 |             for (key, event) in events.iter() {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deq_get_u16` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deq_get_u16(ideq: &mut VecDeque<u8>) -> Option<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXF_EXCL` is never used
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const SSH2_FXF_EXCL: u32 = 0x00000020;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_STAT_VERSION_0` is never used
[INFO] [stdout]    --> src/main.rs:214:7
[INFO] [stdout]     |
[INFO] [stdout] 214 | const SSH2_FXP_STAT_VERSION_0: u8 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:216:7
[INFO] [stdout]     |
[INFO] [stdout] 216 | const SSH2_FXP_SETSTAT: u8 = 9;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_FSETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:217:7
[INFO] [stdout]     |
[INFO] [stdout] 217 | const SSH2_FXP_FSETSTAT: u8 = 10;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_REMOVE` is never used
[INFO] [stdout]    --> src/main.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 | const SSH2_FXP_REMOVE: u8 = 13;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_MKDIR` is never used
[INFO] [stdout]    --> src/main.rs:221:7
[INFO] [stdout]     |
[INFO] [stdout] 221 | const SSH2_FXP_MKDIR: u8 = 14;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RMDIR` is never used
[INFO] [stdout]    --> src/main.rs:222:7
[INFO] [stdout]     |
[INFO] [stdout] 222 | const SSH2_FXP_RMDIR: u8 = 15;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RENAME` is never used
[INFO] [stdout]    --> src/main.rs:225:7
[INFO] [stdout]     |
[INFO] [stdout] 225 | const SSH2_FXP_RENAME: u8 = 18;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SYMLINK` is never used
[INFO] [stdout]    --> src/main.rs:227:7
[INFO] [stdout]     |
[INFO] [stdout] 227 | const SSH2_FXP_SYMLINK: u8 = 20;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_DATA` is never used
[INFO] [stdout]    --> src/main.rs:233:7
[INFO] [stdout]     |
[INFO] [stdout] 233 | const SSH2_FXP_DATA: u8 = 103;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_EXTENDED_REPLY` is never used
[INFO] [stdout]    --> src/main.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const SSH2_FXP_EXTENDED_REPLY: u8 = 201;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_SUCH_FILE` is never used
[INFO] [stdout]    --> src/main.rs:243:7
[INFO] [stdout]     |
[INFO] [stdout] 243 | const SSH2_FX_NO_SUCH_FILE: u32 = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_BAD_MESSAGE` is never used
[INFO] [stdout]    --> src/main.rs:246:7
[INFO] [stdout]     |
[INFO] [stdout] 246 | const SSH2_FX_BAD_MESSAGE: u32 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_CONNECTION` is never used
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 | const SSH2_FX_NO_CONNECTION: u32 = 6;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_CONNECTION_LOST` is never used
[INFO] [stdout]    --> src/main.rs:248:7
[INFO] [stdout]     |
[INFO] [stdout] 248 | const SSH2_FX_CONNECTION_LOST: u32 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_OP_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 | const SSH2_FX_OP_UNSUPPORTED: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_MAX` is never used
[INFO] [stdout]    --> src/main.rs:250:7
[INFO] [stdout]     |
[INFO] [stdout] 250 | const SSH2_FX_MAX: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 252 | enum HandleObj {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 255 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | struct ScpHandle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 261 |     path: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:839:44
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!(err),
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:855:29
[INFO] [stdout]     |
[INFO] [stdout] 855 | ...                   io::stdout().flush();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 855 |                             let _ = io::stdout().flush();
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 | /     log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout] 883 | |         .map(|()| log::set_max_level(LevelFilter::Debug));
[INFO] [stdout]     | |_________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 882 |     let _ = log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:163:13
[INFO] [stdout]     |
[INFO] [stdout] 163 |         for i in 0..count {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `atype`
[INFO] [stdout]    --> src/main.rs:164:17
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let atype = deq_get_cstring(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_atype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `adata`
[INFO] [stdout]    --> src/main.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |             let adata = deq_get_string(ideq)?;
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_adata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extended_id`
[INFO] [stdout]    --> src/main.rs:350:36
[INFO] [stdout]     |
[INFO] [stdout] 350 |     fn process_extended(&mut self, extended_id: u32) {}
[INFO] [stdout]     |                                    ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extended_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:352:37
[INFO] [stdout]     |
[INFO] [stdout] 352 |     fn status_to_message(&mut self, status: u32) -> &'static str {
[INFO] [stdout]     |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:438:17
[INFO] [stdout]     |
[INFO] [stdout] 438 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:403:13
[INFO] [stdout]     |
[INFO] [stdout] 403 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:504:40
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:513:33
[INFO] [stdout]     |
[INFO] [stdout] 513 | ...                   Err(err) => {
[INFO] [stdout]     |                           ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:520:32
[INFO] [stdout]     |
[INFO] [stdout] 520 | ...                   Ok(n) => {
[INFO] [stdout]     |                          ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]    --> src/main.rs:564:17
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:564:13
[INFO] [stdout]     |
[INFO] [stdout] 564 |         let mut status = SSH2_FX_OK;
[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:612:13
[INFO] [stdout]     |
[INFO] [stdout] 612 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[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:632:13
[INFO] [stdout]     |
[INFO] [stdout] 632 |         let mut path = deq_get_cstring(&mut self.ideq).expect("parse cstring");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]    --> src/main.rs:686:17
[INFO] [stdout]     |
[INFO] [stdout] 686 |             Err(err) => {
[INFO] [stdout]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]    --> src/main.rs:820:18
[INFO] [stdout]     |
[INFO] [stdout] 820 |             for (key, event) in events.iter() {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `deq_get_u16` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn deq_get_u16(ideq: &mut VecDeque<u8>) -> Option<u16> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXF_EXCL` is never used
[INFO] [stdout]    --> src/main.rs:139:7
[INFO] [stdout]     |
[INFO] [stdout] 139 | const SSH2_FXF_EXCL: u32 = 0x00000020;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_STAT_VERSION_0` is never used
[INFO] [stdout]    --> src/main.rs:214:7
[INFO] [stdout]     |
[INFO] [stdout] 214 | const SSH2_FXP_STAT_VERSION_0: u8 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:216:7
[INFO] [stdout]     |
[INFO] [stdout] 216 | const SSH2_FXP_SETSTAT: u8 = 9;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_FSETSTAT` is never used
[INFO] [stdout]    --> src/main.rs:217:7
[INFO] [stdout]     |
[INFO] [stdout] 217 | const SSH2_FXP_FSETSTAT: u8 = 10;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_REMOVE` is never used
[INFO] [stdout]    --> src/main.rs:220:7
[INFO] [stdout]     |
[INFO] [stdout] 220 | const SSH2_FXP_REMOVE: u8 = 13;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_MKDIR` is never used
[INFO] [stdout]    --> src/main.rs:221:7
[INFO] [stdout]     |
[INFO] [stdout] 221 | const SSH2_FXP_MKDIR: u8 = 14;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RMDIR` is never used
[INFO] [stdout]    --> src/main.rs:222:7
[INFO] [stdout]     |
[INFO] [stdout] 222 | const SSH2_FXP_RMDIR: u8 = 15;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_RENAME` is never used
[INFO] [stdout]    --> src/main.rs:225:7
[INFO] [stdout]     |
[INFO] [stdout] 225 | const SSH2_FXP_RENAME: u8 = 18;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_SYMLINK` is never used
[INFO] [stdout]    --> src/main.rs:227:7
[INFO] [stdout]     |
[INFO] [stdout] 227 | const SSH2_FXP_SYMLINK: u8 = 20;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_DATA` is never used
[INFO] [stdout]    --> src/main.rs:233:7
[INFO] [stdout]     |
[INFO] [stdout] 233 | const SSH2_FXP_DATA: u8 = 103;
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FXP_EXTENDED_REPLY` is never used
[INFO] [stdout]    --> src/main.rs:238:7
[INFO] [stdout]     |
[INFO] [stdout] 238 | const SSH2_FXP_EXTENDED_REPLY: u8 = 201;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_SUCH_FILE` is never used
[INFO] [stdout]    --> src/main.rs:243:7
[INFO] [stdout]     |
[INFO] [stdout] 243 | const SSH2_FX_NO_SUCH_FILE: u32 = 2;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_BAD_MESSAGE` is never used
[INFO] [stdout]    --> src/main.rs:246:7
[INFO] [stdout]     |
[INFO] [stdout] 246 | const SSH2_FX_BAD_MESSAGE: u32 = 5;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_NO_CONNECTION` is never used
[INFO] [stdout]    --> src/main.rs:247:7
[INFO] [stdout]     |
[INFO] [stdout] 247 | const SSH2_FX_NO_CONNECTION: u32 = 6;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_CONNECTION_LOST` is never used
[INFO] [stdout]    --> src/main.rs:248:7
[INFO] [stdout]     |
[INFO] [stdout] 248 | const SSH2_FX_CONNECTION_LOST: u32 = 7;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_OP_UNSUPPORTED` is never used
[INFO] [stdout]    --> src/main.rs:249:7
[INFO] [stdout]     |
[INFO] [stdout] 249 | const SSH2_FX_OP_UNSUPPORTED: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SSH2_FX_MAX` is never used
[INFO] [stdout]    --> src/main.rs:250:7
[INFO] [stdout]     |
[INFO] [stdout] 250 | const SSH2_FX_MAX: u32 = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `None` is never constructed
[INFO] [stdout]    --> src/main.rs:255:5
[INFO] [stdout]     |
[INFO] [stdout] 252 | enum HandleObj {
[INFO] [stdout]     |      --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 255 |     None,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]    --> src/main.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 258 | struct ScpHandle {
[INFO] [stdout]     |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 261 |     path: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:839:44
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!(err),
[INFO] [stdout]     |                                            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => panic!("{}", err),
[INFO] [stdout]     |                                            +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 839 |                         Err(err) => std::panic::panic_any(err),
[INFO] [stdout]     |                                     ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:855:29
[INFO] [stdout]     |
[INFO] [stdout] 855 | ...                   io::stdout().flush();
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 855 |                             let _ = io::stdout().flush();
[INFO] [stdout]     |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:882:5
[INFO] [stdout]     |
[INFO] [stdout] 882 | /     log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout] 883 | |         .map(|()| log::set_max_level(LevelFilter::Debug));
[INFO] [stdout]     | |_________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 882 |     let _ = log::set_boxed_logger(Box::new(BasicLogger::new(logger)))
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "0307de9e46c54166211535f3af0a7fcc5ef575be953cc4af204953e791250076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0307de9e46c54166211535f3af0a7fcc5ef575be953cc4af204953e791250076", kill_on_drop: false }`
[INFO] [stdout] 0307de9e46c54166211535f3af0a7fcc5ef575be953cc4af204953e791250076