[INFO] updating cached repository https://github.com/kolloch/digits-differ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2de412ec1fd43d7941a22e9f8aa51965dadbcf52
[INFO] testing kolloch/digits-differ against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolloch%2Fdigits-differ" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kolloch/digits-differ on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kolloch/digits-differ
[INFO] finished tweaking git repo https://github.com/kolloch/digits-differ
[INFO] tweaked toml for git repo https://github.com/kolloch/digits-differ written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kolloch/digits-differ already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd373b72a718b10c20b88af0c28e9a689eae135c943a836e8de79796d8f1bf3c
[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" "fd373b72a718b10c20b88af0c28e9a689eae135c943a836e8de79796d8f1bf3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd373b72a718b10c20b88af0c28e9a689eae135c943a836e8de79796d8f1bf3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd373b72a718b10c20b88af0c28e9a689eae135c943a836e8de79796d8f1bf3c", kill_on_drop: false }`
[INFO] [stdout] fd373b72a718b10c20b88af0c28e9a689eae135c943a836e8de79796d8f1bf3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab48c3c814562ab4b437c0e9d770232a5f88c48711e60b0d6c03a62909ce1d98
[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" "ab48c3c814562ab4b437c0e9d770232a5f88c48711e60b0d6c03a62909ce1d98", kill_on_drop: false }`
[INFO] [stderr]    Compiling vob v2.0.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling numbers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/main.rs:189:15
[INFO] [stdout]     |
[INFO] [stdout] 189 |     buf: [u8; (N_DIGITS+1)],
[INFO] [stdout]     |               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/main.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let mut buf = [b'0'; (N_DIGITS+1)];
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "ab48c3c814562ab4b437c0e9d770232a5f88c48711e60b0d6c03a62909ce1d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab48c3c814562ab4b437c0e9d770232a5f88c48711e60b0d6c03a62909ce1d98", kill_on_drop: false }`
[INFO] [stdout] ab48c3c814562ab4b437c0e9d770232a5f88c48711e60b0d6c03a62909ce1d98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a36bae83d265e10a924e4af9658a35f2f344cacd30e97d922a915da2416dd0d8
[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" "a36bae83d265e10a924e4af9658a35f2f344cacd30e97d922a915da2416dd0d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling vob v2.0.4
[INFO] [stderr]    Compiling numbers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/main.rs:189:15
[INFO] [stdout]     |
[INFO] [stdout] 189 |     buf: [u8; (N_DIGITS+1)],
[INFO] [stdout]     |               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around const expression
[INFO] [stdout]    --> src/main.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |         let mut buf = [b'0'; (N_DIGITS+1)];
[INFO] [stdout]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.85s
[INFO] running `Command { std: "docker" "inspect" "a36bae83d265e10a924e4af9658a35f2f344cacd30e97d922a915da2416dd0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a36bae83d265e10a924e4af9658a35f2f344cacd30e97d922a915da2416dd0d8", kill_on_drop: false }`
[INFO] [stdout] a36bae83d265e10a924e4af9658a35f2f344cacd30e97d922a915da2416dd0d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", 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] 5dca4614c3491ba06c0164bc70098faa809910eeaef60921a770f9e5bc4f2387
[INFO] running `Command { std: "docker" "start" "-a" "5dca4614c3491ba06c0164bc70098faa809910eeaef60921a770f9e5bc4f2387", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/main.rs:189:15
[INFO] [stderr]     |
[INFO] [stderr] 189 |     buf: [u8; (N_DIGITS+1)],
[INFO] [stderr]     |               ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around const expression
[INFO] [stderr]    --> src/main.rs:194:30
[INFO] [stderr]     |
[INFO] [stderr] 194 |         let mut buf = [b'0'; (N_DIGITS+1)];
[INFO] [stderr]     |                              ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/numbers-32b10af4a1f902cb
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_two_digits ... ok
[INFO] [stdout] test test_write_num_reverse ... ok
[INFO] [stdout] test test_write_num_easy ... ok
[INFO] [stdout] test test_three_digits ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5dca4614c3491ba06c0164bc70098faa809910eeaef60921a770f9e5bc4f2387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dca4614c3491ba06c0164bc70098faa809910eeaef60921a770f9e5bc4f2387", kill_on_drop: false }`
[INFO] [stdout] 5dca4614c3491ba06c0164bc70098faa809910eeaef60921a770f9e5bc4f2387