[INFO] updating cached repository untoldwind/nftracker
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/untoldwind/nftracker
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/untoldwind/nftracker" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/untoldwind/nftracker"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/untoldwind/nftracker'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/untoldwind/nftracker" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/untoldwind/nftracker"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/untoldwind/nftracker'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b9d05af20b7387ac9fbf4c686984d49879db8d72
[INFO] sha for GitHub repo untoldwind/nftracker: b9d05af20b7387ac9fbf4c686984d49879db8d72
[INFO] validating manifest of untoldwind/nftracker on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of untoldwind/nftracker on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing untoldwind/nftracker
[INFO] finished frobbing untoldwind/nftracker
[INFO] frobbed toml for untoldwind/nftracker written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/untoldwind/nftracker/Cargo.toml
[INFO] started frobbing untoldwind/nftracker
[INFO] finished frobbing untoldwind/nftracker
[INFO] frobbed toml for untoldwind/nftracker written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/untoldwind/nftracker/Cargo.toml
[INFO] crate untoldwind/nftracker already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking untoldwind/nftracker against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/untoldwind/nftracker:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6e5e63bc430f80dd57be6c356188e5ea0a0e1242f690878f5cf0769d6664fc3b
[INFO] running `"docker" "start" "-a" "6e5e63bc430f80dd57be6c356188e5ea0a0e1242f690878f5cf0769d6664fc3b"`
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking copyless v0.1.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking actix-service v0.4.1
[INFO] [stderr]    Compiling nom v5.0.0-beta2
[INFO] [stderr]     Checking stackvector v1.0.2
[INFO] [stderr]     Checking socket2 v0.3.9
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking lexical-core v0.4.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking string v0.2.0
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking actix-codec v0.1.2
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking actix-utils v0.4.1
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking actix-server-config v0.1.1
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking h2 v0.1.23
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling enum-as-inner v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling derive_more v0.14.1
[INFO] [stderr]    Compiling derive_more v0.15.0
[INFO] [stderr]    Compiling actix_derive v0.4.0
[INFO] [stderr]    Compiling actix-web-codegen v0.1.2
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking actix-threadpool v0.1.1
[INFO] [stderr]     Checking actix-rt v0.2.2
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking actix-server v0.5.1
[INFO] [stderr]     Checking actix-connect v0.2.0
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking actix-router v0.1.5
[INFO] [stderr]     Checking toml v0.5.1
[INFO] [stderr]     Checking actix-http v0.2.4
[INFO] [stderr]     Checking awc v0.2.1
[INFO] [stderr]     Checking actix v0.8.3
[INFO] [stderr]     Checking actix-web v1.0.2
[INFO] [stderr]     Checking nftracker v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Read`
[INFO] [stderr]    --> src/conntrack/parse.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |     use std::io::Read;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/conntrack/collector.rs:93:26
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn handle(&mut self, msg: Ping, ctx: &mut Context<ConntrackCollector>) {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/conntrack/collector.rs:93:26
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn handle(&mut self, msg: Ping, ctx: &mut Context<ConntrackCollector>) {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_in`
[INFO] [stderr]   --> src/conntrack/model.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     pub fn push_in(
[INFO] [stderr] 25 | |         &mut self,
[INFO] [stderr] 26 | |         timestamp: Instant,
[INFO] [stderr] 27 | |         local: &str,
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |         });
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/minivec.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_in`
[INFO] [stderr]   --> src/conntrack/model.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | /     pub fn push_in(
[INFO] [stderr] 25 | |         &mut self,
[INFO] [stderr] 26 | |         timestamp: Instant,
[INFO] [stderr] 27 | |         local: &str,
[INFO] [stderr] ...  |
[INFO] [stderr] 37 | |         });
[INFO] [stderr] 38 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InterfaceStats`
[INFO] [stderr]  --> src/device/parse.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub struct InterfaceStats<'a> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_line`
[INFO] [stderr]   --> src/device/parse.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | / fn parse_line<'a, E: ParseError<&'a str>>(
[INFO] [stderr] 17 | |     input: &'a str,
[INFO] [stderr] 18 | | ) -> IResult<&'a str, InterfaceStats<'a>, E> {
[INFO] [stderr] 19 | |     let (input, interface) = terminated(alphanumeric1, char(':'))(input)?;
[INFO] [stderr] ...  |
[INFO] [stderr] 36 | |     ))
[INFO] [stderr] 37 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/minivec.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn pop(&mut self) -> Option<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/minivec.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn is_empty(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]   --> src/minivec.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 26s
[INFO] running `"docker" "inspect" "6e5e63bc430f80dd57be6c356188e5ea0a0e1242f690878f5cf0769d6664fc3b"`
[INFO] running `"docker" "rm" "-f" "6e5e63bc430f80dd57be6c356188e5ea0a0e1242f690878f5cf0769d6664fc3b"`
[INFO] [stdout] 6e5e63bc430f80dd57be6c356188e5ea0a0e1242f690878f5cf0769d6664fc3b