[INFO] fetching crate rpgtools 0.2.0-alpha...
[INFO] checking rpgtools-0.2.0-alpha against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate rpgtools 0.2.0-alpha into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rpgtools 0.2.0-alpha on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rpgtools 0.2.0-alpha
[INFO] finished tweaking crates.io crate rpgtools 0.2.0-alpha
[INFO] tweaked toml for crates.io crate rpgtools 0.2.0-alpha written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 685276bd60f637e1097c4c1b53f85b6ff9f09defb31b3c7e668b2e8ff26b279d
[INFO] running `Command { std: "docker" "start" "-a" "685276bd60f637e1097c4c1b53f85b6ff9f09defb31b3c7e668b2e8ff26b279d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "685276bd60f637e1097c4c1b53f85b6ff9f09defb31b3c7e668b2e8ff26b279d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "685276bd60f637e1097c4c1b53f85b6ff9f09defb31b3c7e668b2e8ff26b279d", kill_on_drop: false }`
[INFO] [stdout] 685276bd60f637e1097c4c1b53f85b6ff9f09defb31b3c7e668b2e8ff26b279d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5ad1baa2743892711b45c4e7697d55d1d16c6b207e43ed78fbbf73197ae86fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5ad1baa2743892711b45c4e7697d55d1d16c6b207e43ed78fbbf73197ae86fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.21.3
[INFO] [stderr]     Checking rpgtools v0.2.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new() -> GridRoom {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_cell`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_cell(&mut self, (x, y): &(usize, usize)) -> Result<bool, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_cell`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn remove_cell(&mut self, (x, y): &(usize, usize)) -> Result<bool, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `partition_rooms`
[INFO] [stdout]    --> src/rpgtools/map/gridmap.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn partition_rooms(&self) -> Vec<GridRoom> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new() -> GridRoom {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_cell`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_cell(&mut self, (x, y): &(usize, usize)) -> Result<bool, String> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `remove_cell`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn remove_cell(&mut self, (x, y): &(usize, usize)) -> Result<bool, String> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/rpgtools/map/gridmap/gridroom.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `partition_rooms`
[INFO] [stdout]    --> src/rpgtools/map/gridmap.rs:510:8
[INFO] [stdout]     |
[INFO] [stdout] 510 |     fn partition_rooms(&self) -> Vec<GridRoom> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.63s
[INFO] running `Command { std: "docker" "inspect" "a5ad1baa2743892711b45c4e7697d55d1d16c6b207e43ed78fbbf73197ae86fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5ad1baa2743892711b45c4e7697d55d1d16c6b207e43ed78fbbf73197ae86fc", kill_on_drop: false }`
[INFO] [stdout] a5ad1baa2743892711b45c4e7697d55d1d16c6b207e43ed78fbbf73197ae86fc