[INFO] updating cached repository crockeo/mist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/crockeo/mist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/crockeo/mist" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/crockeo/mist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/crockeo/mist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/crockeo/mist" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/crockeo/mist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/crockeo/mist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25b39057f08a81cdc270860c616c4fe07f4aacde
[INFO] sha for GitHub repo crockeo/mist: 25b39057f08a81cdc270860c616c4fe07f4aacde
[INFO] validating manifest of crockeo/mist on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of crockeo/mist on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing crockeo/mist
[INFO] finished frobbing crockeo/mist
[INFO] frobbed toml for crockeo/mist written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/crockeo/mist/Cargo.toml
[INFO] started frobbing crockeo/mist
[INFO] finished frobbing crockeo/mist
[INFO] frobbed toml for crockeo/mist written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/crockeo/mist/Cargo.toml
[INFO] crate crockeo/mist already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking crockeo/mist against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/crockeo/mist:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a3ff2ed5af4298a9e5fd5119ad82d6130bb8c292d8574acc15f80342e1832dfe
[INFO] running `"docker" "start" "-a" "a3ff2ed5af4298a9e5fd5119ad82d6130bb8c292d8574acc15f80342e1832dfe"`
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.2.1
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.12
[INFO] [stderr]     Checking mist v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `full_conn_str`
[INFO] [stderr]    --> src/tracker.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     let full_conn_str = format!("{}{}", conn_str, req.to_url_params());
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_full_conn_str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `url_encode`
[INFO] [stderr]   --> src/tracker.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn url_encode(arr: [u8; 20]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Started`
[INFO] [stderr]   --> src/tracker.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Started,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stopped`
[INFO] [stderr]   --> src/tracker.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Stopped,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Completed`
[INFO] [stderr]   --> src/tracker.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Completed,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerRequest`
[INFO] [stderr]   --> src/tracker.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub struct TrackerRequest {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_url_params`
[INFO] [stderr]   --> src/tracker.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn to_url_params(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerResponsePeer`
[INFO] [stderr]    --> src/tracker.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub struct TrackerResponsePeer {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerResponse`
[INFO] [stderr]    --> src/tracker.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub struct TrackerResponse {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `query_tracker`
[INFO] [stderr]    --> src/tracker.rs:131:1
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub fn query_tracker(conn_str: &str, req: &TrackerRequest) -> Option<TrackerResponse> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `full_conn_str`
[INFO] [stderr]    --> src/tracker.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     let full_conn_str = format!("{}{}", conn_str, req.to_url_params());
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_full_conn_str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `url_encode`
[INFO] [stderr]   --> src/tracker.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | fn url_encode(arr: [u8; 20]) -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Started`
[INFO] [stderr]   --> src/tracker.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     Started,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stopped`
[INFO] [stderr]   --> src/tracker.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Stopped,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Completed`
[INFO] [stderr]   --> src/tracker.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     Completed,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerRequest`
[INFO] [stderr]   --> src/tracker.rs:52:1
[INFO] [stderr]    |
[INFO] [stderr] 52 | pub struct TrackerRequest {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_url_params`
[INFO] [stderr]   --> src/tracker.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     fn to_url_params(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerResponsePeer`
[INFO] [stderr]    --> src/tracker.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | pub struct TrackerResponsePeer {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `TrackerResponse`
[INFO] [stderr]    --> src/tracker.rs:118:1
[INFO] [stderr]     |
[INFO] [stderr] 118 | pub struct TrackerResponse {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `query_tracker`
[INFO] [stderr]    --> src/tracker.rs:131:1
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub fn query_tracker(conn_str: &str, req: &TrackerRequest) -> Option<TrackerResponse> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.06s
[INFO] running `"docker" "inspect" "a3ff2ed5af4298a9e5fd5119ad82d6130bb8c292d8574acc15f80342e1832dfe"`
[INFO] running `"docker" "rm" "-f" "a3ff2ed5af4298a9e5fd5119ad82d6130bb8c292d8574acc15f80342e1832dfe"`
[INFO] [stdout] a3ff2ed5af4298a9e5fd5119ad82d6130bb8c292d8574acc15f80342e1832dfe