[INFO] fetching crate ostrich-core 0.1.0...
[INFO] testing ostrich-core-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ostrich-core 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate ostrich-core 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ostrich-core 0.1.0
[INFO] finished tweaking crates.io crate ostrich-core 0.1.0
[INFO] tweaked toml for crates.io crate ostrich-core 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d51e99cb847b2a9235dcc6df805419ff91de281f371abfde0064a89a92b3c2d
[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" "4d51e99cb847b2a9235dcc6df805419ff91de281f371abfde0064a89a92b3c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d51e99cb847b2a9235dcc6df805419ff91de281f371abfde0064a89a92b3c2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d51e99cb847b2a9235dcc6df805419ff91de281f371abfde0064a89a92b3c2d", kill_on_drop: false }`
[INFO] [stdout] 4d51e99cb847b2a9235dcc6df805419ff91de281f371abfde0064a89a92b3c2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99dfe0505b12db5d79384227fa5dd560df0b9aeb5b5685b68bfbb3bed4aa2b4a
[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" "99dfe0505b12db5d79384227fa5dd560df0b9aeb5b5685b68bfbb3bed4aa2b4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ostrich-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stdout]   --> src/lib.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stdout]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stdout]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:29:37
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "99dfe0505b12db5d79384227fa5dd560df0b9aeb5b5685b68bfbb3bed4aa2b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99dfe0505b12db5d79384227fa5dd560df0b9aeb5b5685b68bfbb3bed4aa2b4a", kill_on_drop: false }`
[INFO] [stdout] 99dfe0505b12db5d79384227fa5dd560df0b9aeb5b5685b68bfbb3bed4aa2b4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8307c8d5078cc52d7b0cfe60726bc5429a5613a5e988b461cbe75b210f05e275
[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" "8307c8d5078cc52d7b0cfe60726bc5429a5613a5e988b461cbe75b210f05e275", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stdout]   --> src/lib.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stdout]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stdout]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ostrich-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:29:37
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:23:37
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stdout]   --> src/lib.rs:25:40
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stdout]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stdout]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stdout]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/lib.rs:29:37
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stdout]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "8307c8d5078cc52d7b0cfe60726bc5429a5613a5e988b461cbe75b210f05e275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8307c8d5078cc52d7b0cfe60726bc5429a5613a5e988b461cbe75b210f05e275", kill_on_drop: false }`
[INFO] [stdout] 8307c8d5078cc52d7b0cfe60726bc5429a5613a5e988b461cbe75b210f05e275
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 51b52c8dd3852b6cd43bdeea2e5c45e2e1f4716c8d9a7e49b63c91a82fc060e2
[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" "51b52c8dd3852b6cd43bdeea2e5c45e2e1f4716c8d9a7e49b63c91a82fc060e2", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:23:37
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stderr]   --> src/lib.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stderr]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stderr]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stderr]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stderr]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:23:37
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stderr]   --> src/lib.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stderr]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stderr]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stderr]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/lib.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stderr]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ostrich_core-1912eb1f3acf9e38
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_get ... ok
[INFO] [stdout] test test_err ... ok
[INFO] [stdout] test test_msg ... ok
[INFO] [stdout] test test_ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ostrich-core
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:23:37
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub const CMD_BYTES: Range<usize> = (0..0);
[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 assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub const SENDER_BYTES: Range<usize> = (2..15);
[INFO] [stderr]    |                                        ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:27:38
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub const RECV_BYTES: Range<usize> = (17..31);
[INFO] [stderr]    |                                      ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub const TXT_LEN: Range<usize> = (32..33);
[INFO] [stderr]    |                                   ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lib.rs:29:37
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub const TXT_BYTES: Range<usize> = (34..1023);
[INFO] [stderr]    |                                     ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "51b52c8dd3852b6cd43bdeea2e5c45e2e1f4716c8d9a7e49b63c91a82fc060e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b52c8dd3852b6cd43bdeea2e5c45e2e1f4716c8d9a7e49b63c91a82fc060e2", kill_on_drop: false }`
[INFO] [stdout] 51b52c8dd3852b6cd43bdeea2e5c45e2e1f4716c8d9a7e49b63c91a82fc060e2