[INFO] updating cached repository smoench/maexchen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/smoench/maexchen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/smoench/maexchen" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/smoench/maexchen"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/smoench/maexchen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/smoench/maexchen" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/smoench/maexchen"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/smoench/maexchen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bd22f41af3bb12d42ad992e243d8631e79b1865a
[INFO] sha for GitHub repo smoench/maexchen: bd22f41af3bb12d42ad992e243d8631e79b1865a
[INFO] validating manifest of smoench/maexchen on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of smoench/maexchen on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing smoench/maexchen
[INFO] finished frobbing smoench/maexchen
[INFO] frobbed toml for smoench/maexchen written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/smoench/maexchen/Cargo.toml
[INFO] started frobbing smoench/maexchen
[INFO] finished frobbing smoench/maexchen
[INFO] frobbed toml for smoench/maexchen written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/smoench/maexchen/Cargo.toml
[INFO] crate smoench/maexchen has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking smoench/maexchen against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-2/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/smoench/maexchen:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e8efd7d43bda3e24f28eeb913943f7e0cdc052e8067b486fdb8bda706a66eaf3
[INFO] running `"docker" "start" "-a" "e8efd7d43bda3e24f28eeb913943f7e0cdc052e8067b486fdb8bda706a66eaf3"`
[INFO] [stderr]     Checking maexchen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `last_announced_dice` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut last_announced_dice: String = String::new();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_last_announced_dice` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last_announced_dice` is never read
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             last_announced_dice = split_msg[2].to_string();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let hash: Vec<&str> = vec![
[INFO] [stderr]     |         ^^^^ help: consider using `_hash` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:111:15
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |               ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |                          ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_greater`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `last_announced_dice` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     let mut last_announced_dice: String = String::new();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_last_announced_dice` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `last_announced_dice` is never read
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             last_announced_dice = split_msg[2].to_string();
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `hash`
[INFO] [stderr]    --> src/main.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |     let hash: Vec<&str> = vec![
[INFO] [stderr]     |         ^^^^ help: consider using `_hash` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:111:15
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |               ^ help: consider using `_a` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/main.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     |                          ^ help: consider using `_b` instead
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_greater`
[INFO] [stderr]    --> src/main.rs:111:1
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn is_greater(a: String, b: String) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "e8efd7d43bda3e24f28eeb913943f7e0cdc052e8067b486fdb8bda706a66eaf3"`
[INFO] running `"docker" "rm" "-f" "e8efd7d43bda3e24f28eeb913943f7e0cdc052e8067b486fdb8bda706a66eaf3"`
[INFO] [stdout] e8efd7d43bda3e24f28eeb913943f7e0cdc052e8067b486fdb8bda706a66eaf3