[INFO] updating cached repository kscz/jacobian
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kscz/jacobian
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kscz/jacobian" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/kscz/jacobian"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/kscz/jacobian'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kscz/jacobian" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/kscz/jacobian"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/kscz/jacobian'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 673d57ffc54067e2121d518b8c181df4b131a938
[INFO] sha for GitHub repo kscz/jacobian: 673d57ffc54067e2121d518b8c181df4b131a938
[INFO] validating manifest of kscz/jacobian 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 kscz/jacobian 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 kscz/jacobian
[INFO] finished frobbing kscz/jacobian
[INFO] frobbed toml for kscz/jacobian written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/kscz/jacobian/Cargo.toml
[INFO] started frobbing kscz/jacobian
[INFO] finished frobbing kscz/jacobian
[INFO] frobbed toml for kscz/jacobian written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/kscz/jacobian/Cargo.toml
[INFO] crate kscz/jacobian 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking kscz/jacobian against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/kscz/jacobian:/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] dc2f5b21d745217b32e9aeb94c1561b9c49f25b7f49f0c8742a5f4f1c0ac61a8
[INFO] running `"docker" "start" "-a" "dc2f5b21d745217b32e9aeb94c1561b9c49f25b7f49f0c8742a5f4f1c0ac61a8"`
[INFO] [stderr]     Checking jacobian v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/matrix_client.rs:709:13
[INFO] [stderr]     |
[INFO] [stderr] 709 |         let timeout = match timeout_ms {
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_timeout`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `timeout`
[INFO] [stderr]    --> src/matrix_client.rs:709:13
[INFO] [stderr]     |
[INFO] [stderr] 709 |         let timeout = match timeout_ms {
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_timeout`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BadRoomId`
[INFO] [stderr]    --> src/matrix_client.rs:494:5
[INFO] [stderr]     |
[INFO] [stderr] 494 |     BadRoomId(String)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VERSION_URL`
[INFO] [stderr]    --> src/matrix_client.rs:497:1
[INFO] [stderr]     |
[INFO] [stderr] 497 | const VERSION_URL: &'static str = "/_matrix/client/versions";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LOGOUT_ALL_URL`
[INFO] [stderr]    --> src/matrix_client.rs:500:1
[INFO] [stderr]     |
[INFO] [stderr] 500 | const LOGOUT_ALL_URL: &'static str = "/_matrix/client/r0/logout/all";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PUBLIC_ROOM_URL`
[INFO] [stderr]    --> src/matrix_client.rs:501:1
[INFO] [stderr]     |
[INFO] [stderr] 501 | const PUBLIC_ROOM_URL: &'static str = "/_matrix/client/r0/publicRooms";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `JOIN_ROOM_URL`
[INFO] [stderr]    --> src/matrix_client.rs:502:1
[INFO] [stderr]     |
[INFO] [stderr] 502 | const JOIN_ROOM_URL: &'static str = "/_matrix/client/r0/join/";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_supported_versions`
[INFO] [stderr]    --> src/matrix_client.rs:533:5
[INFO] [stderr]     |
[INFO] [stderr] 533 |     pub fn get_supported_versions(&self) -> Result<VersionResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `logout_all`
[INFO] [stderr]    --> src/matrix_client.rs:610:5
[INFO] [stderr]     |
[INFO] [stderr] 610 |     pub fn logout_all(&mut self) -> Result<(), MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `list_public_rooms`
[INFO] [stderr]    --> src/matrix_client.rs:633:5
[INFO] [stderr]     |
[INFO] [stderr] 633 |     pub fn list_public_rooms(&self) -> Result<PublicRoomsResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `join_room`
[INFO] [stderr]    --> src/matrix_client.rs:654:5
[INFO] [stderr]     |
[INFO] [stderr] 654 |     pub fn join_room(&self, room_id_or_alias: &String) -> Result<JoinResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BadRoomId`
[INFO] [stderr]    --> src/matrix_client.rs:494:5
[INFO] [stderr]     |
[INFO] [stderr] 494 |     BadRoomId(String)
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `VERSION_URL`
[INFO] [stderr]    --> src/matrix_client.rs:497:1
[INFO] [stderr]     |
[INFO] [stderr] 497 | const VERSION_URL: &'static str = "/_matrix/client/versions";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `LOGOUT_ALL_URL`
[INFO] [stderr]    --> src/matrix_client.rs:500:1
[INFO] [stderr]     |
[INFO] [stderr] 500 | const LOGOUT_ALL_URL: &'static str = "/_matrix/client/r0/logout/all";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PUBLIC_ROOM_URL`
[INFO] [stderr]    --> src/matrix_client.rs:501:1
[INFO] [stderr]     |
[INFO] [stderr] 501 | const PUBLIC_ROOM_URL: &'static str = "/_matrix/client/r0/publicRooms";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `JOIN_ROOM_URL`
[INFO] [stderr]    --> src/matrix_client.rs:502:1
[INFO] [stderr]     |
[INFO] [stderr] 502 | const JOIN_ROOM_URL: &'static str = "/_matrix/client/r0/join/";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_supported_versions`
[INFO] [stderr]    --> src/matrix_client.rs:533:5
[INFO] [stderr]     |
[INFO] [stderr] 533 |     pub fn get_supported_versions(&self) -> Result<VersionResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `logout_all`
[INFO] [stderr]    --> src/matrix_client.rs:610:5
[INFO] [stderr]     |
[INFO] [stderr] 610 |     pub fn logout_all(&mut self) -> Result<(), MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `list_public_rooms`
[INFO] [stderr]    --> src/matrix_client.rs:633:5
[INFO] [stderr]     |
[INFO] [stderr] 633 |     pub fn list_public_rooms(&self) -> Result<PublicRoomsResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `join_room`
[INFO] [stderr]    --> src/matrix_client.rs:654:5
[INFO] [stderr]     |
[INFO] [stderr] 654 |     pub fn join_room(&self, room_id_or_alias: &String) -> Result<JoinResponse, MatrixClientError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.75s
[INFO] running `"docker" "inspect" "dc2f5b21d745217b32e9aeb94c1561b9c49f25b7f49f0c8742a5f4f1c0ac61a8"`
[INFO] running `"docker" "rm" "-f" "dc2f5b21d745217b32e9aeb94c1561b9c49f25b7f49f0c8742a5f4f1c0ac61a8"`
[INFO] [stdout] dc2f5b21d745217b32e9aeb94c1561b9c49f25b7f49f0c8742a5f4f1c0ac61a8