[INFO] fetching crate subslice 0.2.2...
[INFO] checking subslice-0.2.2 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate subslice 0.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate subslice 0.2.2 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subslice 0.2.2
[INFO] finished tweaking crates.io crate subslice 0.2.2
[INFO] tweaked toml for crates.io crate subslice 0.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 134fa6041006dda869c7695cd35c0a3b32c9ebe5d72d606f93c54808f991d462
[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" "134fa6041006dda869c7695cd35c0a3b32c9ebe5d72d606f93c54808f991d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "134fa6041006dda869c7695cd35c0a3b32c9ebe5d72d606f93c54808f991d462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134fa6041006dda869c7695cd35c0a3b32c9ebe5d72d606f93c54808f991d462", kill_on_drop: false }`
[INFO] [stdout] 134fa6041006dda869c7695cd35c0a3b32c9ebe5d72d606f93c54808f991d462
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 403e12baa646f3730e8ef8a90be98b74c13427d9813d20c869eb6aa867fff913
[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" "403e12baa646f3730e8ef8a90be98b74c13427d9813d20c869eb6aa867fff913", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking macro-attr v0.2.0
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking subslice v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking quickcheck v0.5.0
[INFO] [stdout] error[E0463]: can't find crate for `unchecked_index`
[INFO] [stdout]   --> benches/pathology.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | extern crate unchecked_index;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:305:39
[INFO] [stdout]     |
[INFO] [stdout] 305 |     assert_eq!(2, compute_max_suf_pos((b"aab")));
[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 function argument
[INFO] [stdout]    --> src/tw.rs:307:39
[INFO] [stdout]     |
[INFO] [stdout] 307 |     assert_eq!(2, compute_max_suf_pos((b"aabaa")));
[INFO] [stdout]     |                                       ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:309:39
[INFO] [stdout]     |
[INFO] [stdout] 309 |     assert_eq!(0, compute_max_suf_pos((b"gcagagag")));
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:310:39
[INFO] [stdout]     |
[INFO] [stdout] 310 |     assert_eq!(2, compute_max_suf_pos((b"banana")));
[INFO] [stdout]     |                                       ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:315:42
[INFO] [stdout]     |
[INFO] [stdout] 315 |     assert_eq!((2, 1), maxsuf_and_period((b"aab")));
[INFO] [stdout]     |                                          ^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:316:42
[INFO] [stdout]     |
[INFO] [stdout] 316 |     assert_eq!((2, 3), maxsuf_and_period((b"aabaa")));
[INFO] [stdout]     |                                          ^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/tw.rs:317:42
[INFO] [stdout]     |
[INFO] [stdout] 317 |     assert_eq!((0, 7), maxsuf_and_period((b"gcagagag")));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `subslice`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "403e12baa646f3730e8ef8a90be98b74c13427d9813d20c869eb6aa867fff913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "403e12baa646f3730e8ef8a90be98b74c13427d9813d20c869eb6aa867fff913", kill_on_drop: false }`
[INFO] [stdout] 403e12baa646f3730e8ef8a90be98b74c13427d9813d20c869eb6aa867fff913