[INFO] cloning repository https://github.com/axel-kaliff/hw14
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/axel-kaliff/hw14" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fhw14", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fhw14'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1b5db79dee162c5b852f187e6833d7d8fe8e054
[INFO] testing axel-kaliff/hw14 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxel-kaliff%2Fhw14" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/axel-kaliff/hw14 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/axel-kaliff/hw14
[INFO] finished tweaking git repo https://github.com/axel-kaliff/hw14
[INFO] tweaked toml for git repo https://github.com/axel-kaliff/hw14 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/axel-kaliff/hw14 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 070c1bf5ac01462fb2ef56c7a20cd22a2742a9bad4bb64e406cd11a56c992a1d
[INFO] running `Command { std: "docker" "start" "-a" "070c1bf5ac01462fb2ef56c7a20cd22a2742a9bad4bb64e406cd11a56c992a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "070c1bf5ac01462fb2ef56c7a20cd22a2742a9bad4bb64e406cd11a56c992a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070c1bf5ac01462fb2ef56c7a20cd22a2742a9bad4bb64e406cd11a56c992a1d", kill_on_drop: false }`
[INFO] [stdout] 070c1bf5ac01462fb2ef56c7a20cd22a2742a9bad4bb64e406cd11a56c992a1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1b304b437b4b1110ef1cc2bf9ac3c8d18b2a9ca29f85f03c2538b2032c912a1
[INFO] running `Command { std: "docker" "start" "-a" "f1b304b437b4b1110ef1cc2bf9ac3c8d18b2a9ca29f85f03c2538b2032c912a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hw14 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `number_of_cases` is assigned to, but never used
[INFO] [stdout]  --> src/wd.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut number_of_cases = 0;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_number_of_cases` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `number_of_cases` is never read
[INFO] [stdout]   --> src/wd.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             number_of_cases = nums[0] as u32;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/wd.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...                   let mut max = cmp::min(cmp::min(x, s - x), cmp::min(y, s - y));
[INFO] [stdout]    |                           ----^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/wd.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 &l.clear();
[INFO] [stdout]    |                 ^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let _ = &l.clear();
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hw14::trojke::trojke`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hw14::trojke::trojke;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.73s
[INFO] running `Command { std: "docker" "inspect" "f1b304b437b4b1110ef1cc2bf9ac3c8d18b2a9ca29f85f03c2538b2032c912a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b304b437b4b1110ef1cc2bf9ac3c8d18b2a9ca29f85f03c2538b2032c912a1", kill_on_drop: false }`
[INFO] [stdout] f1b304b437b4b1110ef1cc2bf9ac3c8d18b2a9ca29f85f03c2538b2032c912a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2e8f7e4d55ad941b786b4cd9c1803d2be04688ac03fca06fcc77ab4f1cdb839
[INFO] running `Command { std: "docker" "start" "-a" "e2e8f7e4d55ad941b786b4cd9c1803d2be04688ac03fca06fcc77ab4f1cdb839", kill_on_drop: false }`
[INFO] [stdout] warning: variable `number_of_cases` is assigned to, but never used
[INFO] [stdout]  --> src/wd.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut number_of_cases = 0;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_number_of_cases` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hw14 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `number_of_cases` is never read
[INFO] [stdout]   --> src/wd.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             number_of_cases = nums[0] as u32;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/wd.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...                   let mut max = cmp::min(cmp::min(x, s - x), cmp::min(y, s - y));
[INFO] [stdout]    |                           ----^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/wd.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 &l.clear();
[INFO] [stdout]    |                 ^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let _ = &l.clear();
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hw14::trojke::trojke`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use hw14::trojke::trojke;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `number_of_cases` is assigned to, but never used
[INFO] [stdout]  --> src/wd.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let mut number_of_cases = 0;
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]   = note: consider using `_number_of_cases` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `number_of_cases` is never read
[INFO] [stdout]   --> src/wd.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |             number_of_cases = nums[0] as u32;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/wd.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 | ...                   let mut max = cmp::min(cmp::min(x, s - x), cmp::min(y, s - y));
[INFO] [stdout]    |                           ----^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/wd.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 &l.clear();
[INFO] [stdout]    |                 ^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 let _ = &l.clear();
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "e2e8f7e4d55ad941b786b4cd9c1803d2be04688ac03fca06fcc77ab4f1cdb839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e8f7e4d55ad941b786b4cd9c1803d2be04688ac03fca06fcc77ab4f1cdb839", kill_on_drop: false }`
[INFO] [stdout] e2e8f7e4d55ad941b786b4cd9c1803d2be04688ac03fca06fcc77ab4f1cdb839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 647ed2bb1d99b1b8d3d395d61286830b45b2be37ed6cf4dd1d0ede84f5c660fb
[INFO] running `Command { std: "docker" "start" "-a" "647ed2bb1d99b1b8d3d395d61286830b45b2be37ed6cf4dd1d0ede84f5c660fb", kill_on_drop: false }`
[INFO] [stderr] warning: variable `number_of_cases` is assigned to, but never used
[INFO] [stderr]  --> src/wd.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let mut number_of_cases = 0;
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]   = note: consider using `_number_of_cases` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `number_of_cases` is never read
[INFO] [stderr]   --> src/wd.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             number_of_cases = nums[0] as u32;
[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: variable does not need to be mutable
[INFO] [stderr]   --> src/wd.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 | ...                   let mut max = cmp::min(cmp::min(x, s - x), cmp::min(y, s - y));
[INFO] [stderr]    |                           ----^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/wd.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 &l.clear();
[INFO] [stderr]    |                 ^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 17 |                 let _ = &l.clear();
[INFO] [stderr]    |                 +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `hw14` (lib) generated 4 warnings
[INFO] [stderr] warning: `hw14` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: unused import: `hw14::trojke::trojke`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use hw14::trojke::trojke;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hw14` (bin "hw14" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hw14-fd049e722ea26321)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hw14-93c69de308b74b20)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hw14
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "647ed2bb1d99b1b8d3d395d61286830b45b2be37ed6cf4dd1d0ede84f5c660fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647ed2bb1d99b1b8d3d395d61286830b45b2be37ed6cf4dd1d0ede84f5c660fb", kill_on_drop: false }`
[INFO] [stdout] 647ed2bb1d99b1b8d3d395d61286830b45b2be37ed6cf4dd1d0ede84f5c660fb