[INFO] fetching crate luhn-rs 0.0.1...
[INFO] testing luhn-rs-0.0.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate luhn-rs 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate luhn-rs 0.0.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate luhn-rs 0.0.1
[INFO] finished tweaking crates.io crate luhn-rs 0.0.1
[INFO] tweaked toml for crates.io crate luhn-rs 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d77ece56b5ef4a2f8d9d295e90709643fbfbbdb1a8d7b45f0d2760466ed07b76
[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" "d77ece56b5ef4a2f8d9d295e90709643fbfbbdb1a8d7b45f0d2760466ed07b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d77ece56b5ef4a2f8d9d295e90709643fbfbbdb1a8d7b45f0d2760466ed07b76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d77ece56b5ef4a2f8d9d295e90709643fbfbbdb1a8d7b45f0d2760466ed07b76", kill_on_drop: false }`
[INFO] [stdout] d77ece56b5ef4a2f8d9d295e90709643fbfbbdb1a8d7b45f0d2760466ed07b76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f38cbb9eda1167110666fe703baea74b7b952f950488884b341f68beea09a9f6
[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" "f38cbb9eda1167110666fe703baea74b7b952f950488884b341f68beea09a9f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling luhn-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |             let codepoint = try!(self.codepoint_from_character(ch));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:127:24
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let expected = try!(self.generate(head));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let expected = try!(self.generate(s));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "f38cbb9eda1167110666fe703baea74b7b952f950488884b341f68beea09a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f38cbb9eda1167110666fe703baea74b7b952f950488884b341f68beea09a9f6", kill_on_drop: false }`
[INFO] [stdout] f38cbb9eda1167110666fe703baea74b7b952f950488884b341f68beea09a9f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8ba1cb9a328b1b60c6e53ec0abb692cbd01dee20c73e2cc873c33954b5227e
[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" "0e8ba1cb9a328b1b60c6e53ec0abb692cbd01dee20c73e2cc873c33954b5227e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |             let codepoint = try!(self.codepoint_from_character(ch));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:127:24
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let expected = try!(self.generate(head));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let expected = try!(self.generate(s));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling luhn-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/lib.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 |             let codepoint = try!(self.codepoint_from_character(ch));
[INFO] [stdout]    |                             ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:127:24
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let expected = try!(self.generate(head));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:142:24
[INFO] [stdout]     |
[INFO] [stdout] 142 |         let expected = try!(self.generate(s));
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `tests::rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]    --> src/lib.rs:152:52
[INFO] [stdout]     |
[INFO] [stdout] 152 |     use self::rand::{Isaac64Rng, Rng, SeedableRng, sample, thread_rng};
[INFO] [stdout]     |                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `tests::rand::sample`: renamed to seq::sample_iter
[INFO] [stdout]    --> src/lib.rs:249:25
[INFO] [stdout]     |
[INFO] [stdout] 249 |             let chars = sample(&mut rng, &printable_chars, alphabet_size as usize)
[INFO] [stdout]     |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.29s
[INFO] running `Command { std: "docker" "inspect" "0e8ba1cb9a328b1b60c6e53ec0abb692cbd01dee20c73e2cc873c33954b5227e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8ba1cb9a328b1b60c6e53ec0abb692cbd01dee20c73e2cc873c33954b5227e", kill_on_drop: false }`
[INFO] [stdout] 0e8ba1cb9a328b1b60c6e53ec0abb692cbd01dee20c73e2cc873c33954b5227e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15d2ef1e3979976fbaf677114df6f8e8c9343572e192496d627885d545e4be95
[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" "15d2ef1e3979976fbaf677114df6f8e8c9343572e192496d627885d545e4be95", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 |             let codepoint = try!(self.codepoint_from_character(ch));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let expected = try!(self.generate(head));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let expected = try!(self.generate(s));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:90:29
[INFO] [stderr]    |
[INFO] [stderr] 90 |             let codepoint = try!(self.codepoint_from_character(ch));
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |         let expected = try!(self.generate(head));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |         let expected = try!(self.generate(s));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `tests::rand::sample`: renamed to seq::sample_iter
[INFO] [stderr]    --> src/lib.rs:152:52
[INFO] [stderr]     |
[INFO] [stderr] 152 |     use self::rand::{Isaac64Rng, Rng, SeedableRng, sample, thread_rng};
[INFO] [stderr]     |                                                    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `tests::rand::sample`: renamed to seq::sample_iter
[INFO] [stderr]    --> src/lib.rs:249:25
[INFO] [stderr]     |
[INFO] [stderr] 249 |             let chars = sample(&mut rng, &printable_chars, alphabet_size as usize)
[INFO] [stderr]     |                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/luhn-4502745eea9115e5)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_generate ... ok
[INFO] [stdout] test tests::test_longer_input ... ok
[INFO] [stdout] test tests::test_empty_strings ... ok
[INFO] [stdout] test tests::test_invalid_input ... ok
[INFO] [stdout] test tests::test_validate ... ok
[INFO] [stdout] test tests::test_validate_with ... ok
[INFO] [stdout] test tests::test_invalid_alphabet ... ok
[INFO] [stdout] test tests::test_random_input ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.88s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests luhn
[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" "15d2ef1e3979976fbaf677114df6f8e8c9343572e192496d627885d545e4be95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d2ef1e3979976fbaf677114df6f8e8c9343572e192496d627885d545e4be95", kill_on_drop: false }`
[INFO] [stdout] 15d2ef1e3979976fbaf677114df6f8e8c9343572e192496d627885d545e4be95