[INFO] cloning repository https://github.com/bgermann/offwall
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bgermann/offwall" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgermann%2Foffwall", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgermann%2Foffwall'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e0bf7b883dcd41f50166564b31b4c36fa7936d9
[INFO] checking bgermann/offwall against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbgermann%2Foffwall" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bgermann/offwall 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/bgermann/offwall
[INFO] finished tweaking git repo https://github.com/bgermann/offwall
[INFO] tweaked toml for git repo https://github.com/bgermann/offwall written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/bgermann/offwall 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 cc v1.0.34
[INFO] [stderr]   Downloaded tls-api v0.1.20
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[INFO] [stderr]   Downloaded fsevent-sys v0.1.6
[INFO] [stderr]   Downloaded inotify v0.6.1
[INFO] [stderr]   Downloaded notify v4.0.10
[INFO] [stderr]   Downloaded simple_logger v1.0.1
[INFO] [stderr]   Downloaded backtrace v0.3.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 45b104f3eda82ed4b5ee460d3d13525103e292e6a7902235529c6008cb2198af
[INFO] running `Command { std: "docker" "start" "-a" "45b104f3eda82ed4b5ee460d3d13525103e292e6a7902235529c6008cb2198af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45b104f3eda82ed4b5ee460d3d13525103e292e6a7902235529c6008cb2198af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45b104f3eda82ed4b5ee460d3d13525103e292e6a7902235529c6008cb2198af", kill_on_drop: false }`
[INFO] [stdout] 45b104f3eda82ed4b5ee460d3d13525103e292e6a7902235529c6008cb2198af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 716aa281633b1eb17a983d0b76547e8e887616ff179c870e16ad208136b20f25
[INFO] running `Command { std: "docker" "start" "-a" "716aa281633b1eb17a983d0b76547e8e887616ff179c870e16ad208136b20f25", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling cc v1.0.34
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking rand_hc v0.1.0
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[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tls-api v0.1.20
[INFO] [stderr]     Checking log-panics v2.0.0
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking notify v4.0.10
[INFO] [stderr]     Checking simple_logger v1.0.1
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking syslog v4.0.1
[INFO] [stderr]     Checking ipnetwork v0.14.0
[INFO] [stderr]     Checking offwall v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `notify` is imported redundantly
[INFO] [stdout]   --> src/bypass_csv.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use notify;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate notify;
[INFO] [stdout]    | -------------------- the item `notify` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/bypass_csv.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/conf.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]   --> src/conf.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | use std::io::Read;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | use std::iter::IntoIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `IntoIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tls_api`
[INFO] [stdout]   --> src/conf.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use tls_api;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tls_api::TlsAcceptorBuilder`
[INFO] [stdout]   --> src/conf.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | use tls_api::TlsAcceptorBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ByteOrder` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/deserialize.rs:8:17
[INFO] [stdout]    |
[INFO] [stdout] 8  | use byteorder::{ByteOrder, NetworkEndian};
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout] 9  | use openflow::error::{Error, Result};
[INFO] [stdout] 10 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `ByteOrder` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NetworkEndian` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/deserialize.rs:8:28
[INFO] [stdout]    |
[INFO] [stdout] 8  | use byteorder::{ByteOrder, NetworkEndian};
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout] 9  | use openflow::error::{Error, Result};
[INFO] [stdout] 10 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `NetworkEndian` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NetworkEndian` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/serialize.rs:9:17
[INFO] [stdout]    |
[INFO] [stdout] 9  | use byteorder::{NetworkEndian, WriteBytesExt};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 10 | use bypass_csv::BypassRecord;
[INFO] [stdout] 11 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `NetworkEndian` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/serialize.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/openflow/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tls_api` is imported redundantly
[INFO] [stdout]   --> src/openflow/mod.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use tls_api;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate tls_api;
[INFO] [stdout]    | --------------------- the item `tls_api` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `notify` is imported redundantly
[INFO] [stdout]   --> src/bypass_csv.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use notify;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate notify;
[INFO] [stdout]    | -------------------- the item `notify` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/bypass_csv.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::default::Default;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `Default` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]   --> src/conf.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | use std::fs::File;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]   --> src/conf.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 44 | use std::io::Read;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]   --> src/conf.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | use std::iter::IntoIterator;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `IntoIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tls_api`
[INFO] [stdout]   --> src/conf.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | use tls_api;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tls_api::TlsAcceptorBuilder`
[INFO] [stdout]   --> src/conf.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | use tls_api::TlsAcceptorBuilder;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ByteOrder` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/deserialize.rs:8:17
[INFO] [stdout]    |
[INFO] [stdout] 8  | use byteorder::{ByteOrder, NetworkEndian};
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout] 9  | use openflow::error::{Error, Result};
[INFO] [stdout] 10 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `ByteOrder` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NetworkEndian` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/deserialize.rs:8:28
[INFO] [stdout]    |
[INFO] [stdout] 8  | use byteorder::{ByteOrder, NetworkEndian};
[INFO] [stdout]    |                            ^^^^^^^^^^^^^
[INFO] [stdout] 9  | use openflow::error::{Error, Result};
[INFO] [stdout] 10 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `NetworkEndian` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `NetworkEndian` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/serialize.rs:9:17
[INFO] [stdout]    |
[INFO] [stdout] 9  | use byteorder::{NetworkEndian, WriteBytesExt};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 10 | use bypass_csv::BypassRecord;
[INFO] [stdout] 11 | use openflow::messages::*;
[INFO] [stdout]    |     --------------------- the item `NetworkEndian` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `From` is imported redundantly
[INFO] [stdout]   --> src/openflow/messages/serialize.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::convert::From;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `From` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/openflow/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use rand;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate rand;
[INFO] [stdout]    | ------------------ the item `rand` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tls_api` is imported redundantly
[INFO] [stdout]   --> src/openflow/mod.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use tls_api;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate tls_api;
[INFO] [stdout]    | --------------------- the item `tls_api` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/conf.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 let mut conn = OfConnection::from_str(uri)?;
[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/conf.rs:252:21
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 let mut conn = OfConnection::from_str(uri)?;
[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: constant `P12_KEY` is never used
[INFO] [stdout]   --> src/conf.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 | const P12_KEY: &str = "pkcs12";
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PASS_KEY` is never used
[INFO] [stdout]   --> src/conf.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | const PASS_KEY: &str = "passwd";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `proto` and `pkcs12` are never read
[INFO] [stdout]    --> src/conf.rs:218:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | pub struct OfConnection {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 218 |     proto: ConnectionProtocol,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pkcs12: Option<(Vec<u8>, String)>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OfConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Tls` is never constructed
[INFO] [stdout]   --> src/openflow/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | enum Stream {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 46 |     Tcp(TcpStream),
[INFO] [stdout] 47 |     Tls(TlsStream<TcpStream>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stream` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `P12_KEY` is never used
[INFO] [stdout]   --> src/conf.rs:65:7
[INFO] [stdout]    |
[INFO] [stdout] 65 | const P12_KEY: &str = "pkcs12";
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PASS_KEY` is never used
[INFO] [stdout]   --> src/conf.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | const PASS_KEY: &str = "passwd";
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `proto` and `pkcs12` are never read
[INFO] [stdout]    --> src/conf.rs:218:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | pub struct OfConnection {
[INFO] [stdout]     |            ------------ fields in this struct
[INFO] [stdout] 218 |     proto: ConnectionProtocol,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 222 |     pkcs12: Option<(Vec<u8>, String)>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OfConnection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Tls` is never constructed
[INFO] [stdout]   --> src/openflow/mod.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | enum Stream {
[INFO] [stdout]    |      ------ variant in this enum
[INFO] [stdout] 46 |     Tcp(TcpStream),
[INFO] [stdout] 47 |     Tls(TlsStream<TcpStream>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Stream` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.16s
[INFO] running `Command { std: "docker" "inspect" "716aa281633b1eb17a983d0b76547e8e887616ff179c870e16ad208136b20f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "716aa281633b1eb17a983d0b76547e8e887616ff179c870e16ad208136b20f25", kill_on_drop: false }`
[INFO] [stdout] 716aa281633b1eb17a983d0b76547e8e887616ff179c870e16ad208136b20f25