[INFO] cloning repository https://github.com/burtgulash/sirka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/burtgulash/sirka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburtgulash%2Fsirka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburtgulash%2Fsirka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6cf96e074501cc6ad4294a87b136110f50780af
[INFO] checking burtgulash/sirka against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fburtgulash%2Fsirka" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/burtgulash/sirka on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/burtgulash/sirka
[INFO] finished tweaking git repo https://github.com/burtgulash/sirka
[INFO] tweaked toml for git repo https://github.com/burtgulash/sirka written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/burtgulash/sirka already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f12a6f4030ef49b7470ce3e1c783306b09507f05bc5602c3ab332ed16fe86622
[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" "f12a6f4030ef49b7470ce3e1c783306b09507f05bc5602c3ab332ed16fe86622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f12a6f4030ef49b7470ce3e1c783306b09507f05bc5602c3ab332ed16fe86622", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12a6f4030ef49b7470ce3e1c783306b09507f05bc5602c3ab332ed16fe86622", kill_on_drop: false }`
[INFO] [stdout] f12a6f4030ef49b7470ce3e1c783306b09507f05bc5602c3ab332ed16fe86622
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6877e8fd0baf4d640ea69e9b6b73384fb463920cfd2bc2b00b62b6bb083eaf7f
[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" "6877e8fd0baf4d640ea69e9b6b73384fb463920cfd2bc2b00b62b6bb083eaf7f", kill_on_drop: false }`
[INFO] [stderr]     Checking sirka v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `terms_size`
[INFO] [stdout]   --> src/nutrie/read.rs:47:68
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(bytes: &'a [u8], dict_size: usize, root_ptr: usize, terms_size: usize) -> Self {
[INFO] [stdout]    |                                                                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terms_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/postings/cursor/merge/with_duplicates.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let mut ptrs = self.frontier.drain().collect::<Vec<_>>();
[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 variable: `terms_size`
[INFO] [stdout]   --> src/nutrie/read.rs:47:68
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(bytes: &'a [u8], dict_size: usize, root_ptr: usize, terms_size: usize) -> Self {
[INFO] [stdout]    |                                                                    ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_terms_size`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/bin/search.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/postings/cursor/merge/with_duplicates.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let mut ptrs = self.frontier.drain().collect::<Vec<_>>();
[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 `#[macro_use]` import
[INFO] [stdout]  --> src/bin/search.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `written_terms`
[INFO] [stdout]    --> src/bin/index.rs:116:10
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let (written_terms, dict_size, root_ptr, terms_size) = create_trie(term_serial, &terms, &mut postings,
[INFO] [stdout]     |          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written_terms`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `written_terms`
[INFO] [stdout]    --> src/bin/index.rs:116:10
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let (written_terms, dict_size, root_ptr, terms_size) = create_trie(term_serial, &terms, &mut postings,
[INFO] [stdout]     |          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_written_terms`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "6877e8fd0baf4d640ea69e9b6b73384fb463920cfd2bc2b00b62b6bb083eaf7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6877e8fd0baf4d640ea69e9b6b73384fb463920cfd2bc2b00b62b6bb083eaf7f", kill_on_drop: false }`
[INFO] [stdout] 6877e8fd0baf4d640ea69e9b6b73384fb463920cfd2bc2b00b62b6bb083eaf7f