[INFO] cloning repository https://github.com/Ryan1729/ice_puzzles
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryan1729/ice_puzzles" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fice_puzzles", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fice_puzzles'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f8c45b05bc34f31855977c73b0db7842e5841bb0
[INFO] checking Ryan1729/ice_puzzles against master#a299aa5df79dd8e5a1405b97ddd7b367b61eecc6 for pr-125923-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fice_puzzles" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ryan1729/ice_puzzles on toolchain a299aa5df79dd8e5a1405b97ddd7b367b61eecc6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryan1729/ice_puzzles
[INFO] finished tweaking git repo https://github.com/Ryan1729/ice_puzzles
[INFO] tweaked toml for git repo https://github.com/Ryan1729/ice_puzzles written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryan1729/ice_puzzles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/common/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/state_manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc1/source/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded lazy_static v0.2.4
[INFO] [stderr]   Downloaded target_build_utils v0.3.0
[INFO] [stderr]   Downloaded libloading v0.3.4
[INFO] [stderr]   Downloaded bear-lib-terminal-sys v1.2.2
[INFO] [stderr]   Downloaded serde v0.9.11
[INFO] [stderr]   Downloaded bear-lib-terminal v1.3.3
[INFO] [stderr]   Downloaded serde_json v0.9.9
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b723ad3e4d687e7c8a4d1ceb4a03d1c49d0f1bc996f834f1c2e33dbb76b73386
[INFO] running `Command { std: "docker" "start" "-a" "b723ad3e4d687e7c8a4d1ceb4a03d1c49d0f1bc996f834f1c2e33dbb76b73386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b723ad3e4d687e7c8a4d1ceb4a03d1c49d0f1bc996f834f1c2e33dbb76b73386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b723ad3e4d687e7c8a4d1ceb4a03d1c49d0f1bc996f834f1c2e33dbb76b73386", kill_on_drop: false }`
[INFO] [stdout] b723ad3e4d687e7c8a4d1ceb4a03d1c49d0f1bc996f834f1c2e33dbb76b73386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+a299aa5df79dd8e5a1405b97ddd7b367b61eecc6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e69ba1dc24e412aede33cad9d38a03dee3c1affd8ebde4275356456a9b1bd145
[INFO] running `Command { std: "docker" "start" "-a" "e69ba1dc24e412aede33cad9d38a03dee3c1affd8ebde4275356456a9b1bd145", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/state_manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/common/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling serde v0.9.11
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]     Checking lazy_static v0.2.4
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking bear-lib-terminal-sys v1.2.2
[INFO] [stderr]     Checking bear-lib-terminal v1.3.3
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stdout] warning: unused imports: `Rand` and `Rng`
[INFO] [stdout]  --> common/src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{StdRng, Rand, Rng};
[INFO] [stdout]   |                    ^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Iterator`
[INFO] [stdout]  --> common/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Cycle`
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::Cycle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub get_foreground: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub get_foreground: fn() -> (Color),
[INFO] [stdout] 21 +     pub get_foreground: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub get_background: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     pub get_background: fn() -> (Color),
[INFO] [stdout] 23 +     pub get_background: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rand` and `Rng`
[INFO] [stdout]  --> common/src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{StdRng, Rand, Rng};
[INFO] [stdout]   |                    ^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Iterator`
[INFO] [stdout]  --> common/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Cycle`
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::Cycle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub get_foreground: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub get_foreground: fn() -> (Color),
[INFO] [stdout] 21 +     pub get_foreground: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub get_background: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     pub get_background: fn() -> (Color),
[INFO] [stdout] 23 +     pub get_background: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling target_build_utils v0.3.0
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking state_manipulation v0.1.0 (/opt/rustwide/workdir/state_manipulation)
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]    --> state_manipulation/src/lib.rs:590:4
[INFO] [stdout]     |
[INFO] [stdout] 590 | fn sub<T: Sub<Output = T>>((x1, y1): (T, T), (x2, y2): (T, T)) -> (T, T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]    --> state_manipulation/src/lib.rs:590:4
[INFO] [stdout]     |
[INFO] [stdout] 590 | fn sub<T: Sub<Output = T>>((x1, y1): (T, T), (x2, y2): (T, T)) -> (T, T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr] error: could not compile `target_build_utils` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/a299aa5df79dd8e5a1405b97ddd7b367b61eecc6/bin/rustc --crate-name target_build_utils --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/target_build_utils-0.3.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="serde_json"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("default", "serde_json"))' -C metadata=0b8d68266944e11e -C extra-filename=-0b8d68266944e11e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern phf=/opt/rustwide/target/debug/deps/libphf-4a42bd69d611b0e7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-db6b0370a8427cfb.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e69ba1dc24e412aede33cad9d38a03dee3c1affd8ebde4275356456a9b1bd145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e69ba1dc24e412aede33cad9d38a03dee3c1affd8ebde4275356456a9b1bd145", kill_on_drop: false }`
[INFO] [stdout] e69ba1dc24e412aede33cad9d38a03dee3c1affd8ebde4275356456a9b1bd145
[INFO] checking Ryan1729/ice_puzzles against try#8585d8c57bfa6d7d66340412e06b5611fa79cc61 for pr-125923-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fice_puzzles" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ryan1729/ice_puzzles on toolchain 8585d8c57bfa6d7d66340412e06b5611fa79cc61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryan1729/ice_puzzles
[INFO] finished tweaking git repo https://github.com/Ryan1729/ice_puzzles
[INFO] tweaked toml for git repo https://github.com/Ryan1729/ice_puzzles written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryan1729/ice_puzzles already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-1-tc2/source/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc2/source/state_manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-1-tc2/source/common/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a415cdd5d52c146a17850daf20e89520f013b39e78a8a225b95234b6b01df86
[INFO] running `Command { std: "docker" "start" "-a" "8a415cdd5d52c146a17850daf20e89520f013b39e78a8a225b95234b6b01df86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a415cdd5d52c146a17850daf20e89520f013b39e78a8a225b95234b6b01df86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a415cdd5d52c146a17850daf20e89520f013b39e78a8a225b95234b6b01df86", kill_on_drop: false }`
[INFO] [stdout] 8a415cdd5d52c146a17850daf20e89520f013b39e78a8a225b95234b6b01df86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8585d8c57bfa6d7d66340412e06b5611fa79cc61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6881cafb905ac55cc119d887639bca0689d1ecd9a50b2daaf1cfb0b00a9f5476
[INFO] running `Command { std: "docker" "start" "-a" "6881cafb905ac55cc119d887639bca0689d1ecd9a50b2daaf1cfb0b00a9f5476", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/state_manipulation/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/common/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling serde v0.9.11
[INFO] [stderr]     Checking lazy_static v0.2.4
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]     Checking bear-lib-terminal-sys v1.2.2
[INFO] [stderr]     Checking bear-lib-terminal v1.3.3
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/common)
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stdout] warning: unused imports: `Rand` and `Rng`
[INFO] [stdout]  --> common/src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{StdRng, Rand, Rng};
[INFO] [stdout]   |                    ^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Iterator`
[INFO] [stdout]  --> common/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Cycle`
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::Cycle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub get_foreground: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub get_foreground: fn() -> (Color),
[INFO] [stdout] 21 +     pub get_foreground: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub get_background: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     pub get_background: fn() -> (Color),
[INFO] [stdout] 23 +     pub get_background: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rand` and `Rng`
[INFO] [stdout]  --> common/src/lib.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{StdRng, Rand, Rng};
[INFO] [stdout]   |                    ^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Iterator`
[INFO] [stdout]  --> common/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::Iterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::Cycle`
[INFO] [stdout]  --> common/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::Cycle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub get_foreground: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 21 -     pub get_foreground: fn() -> (Color),
[INFO] [stdout] 21 +     pub get_foreground: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> common/src/lib.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub get_background: fn() -> (Color),
[INFO] [stdout]    |                                 ^     ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -     pub get_background: fn() -> (Color),
[INFO] [stdout] 23 +     pub get_background: fn() -> Color,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking state_manipulation v0.1.0 (/opt/rustwide/workdir/state_manipulation)
[INFO] [stderr]    Compiling target_build_utils v0.3.0
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]    --> state_manipulation/src/lib.rs:590:4
[INFO] [stdout]     |
[INFO] [stdout] 590 | fn sub<T: Sub<Output = T>>((x1, y1): (T, T), (x2, y2): (T, T)) -> (T, T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sub` is never used
[INFO] [stdout]    --> state_manipulation/src/lib.rs:590:4
[INFO] [stdout]     |
[INFO] [stdout] 590 | fn sub<T: Sub<Output = T>>((x1, y1): (T, T), (x2, y2): (T, T)) -> (T, T) {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v0.9.9
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]     Checking live-code-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.10s
[INFO] running `Command { std: "docker" "inspect" "6881cafb905ac55cc119d887639bca0689d1ecd9a50b2daaf1cfb0b00a9f5476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6881cafb905ac55cc119d887639bca0689d1ecd9a50b2daaf1cfb0b00a9f5476", kill_on_drop: false }`
[INFO] [stdout] 6881cafb905ac55cc119d887639bca0689d1ecd9a50b2daaf1cfb0b00a9f5476