[INFO] fetching crate elipdotter 0.3.5...
[INFO] checking elipdotter-0.3.5 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate elipdotter 0.3.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate elipdotter 0.3.5
[INFO] finished tweaking crates.io crate elipdotter 0.3.5
[INFO] tweaked toml for crates.io crate elipdotter 0.3.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate elipdotter 0.3.5 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70a4c37a12bb7c91135895de2c28ec7aef4e3b0de31d9e221c0fb8ba62371a67
[INFO] running `Command { std: "docker" "start" "-a" "70a4c37a12bb7c91135895de2c28ec7aef4e3b0de31d9e221c0fb8ba62371a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70a4c37a12bb7c91135895de2c28ec7aef4e3b0de31d9e221c0fb8ba62371a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a4c37a12bb7c91135895de2c28ec7aef4e3b0de31d9e221c0fb8ba62371a67", kill_on_drop: false }`
[INFO] [stdout] 70a4c37a12bb7c91135895de2c28ec7aef4e3b0de31d9e221c0fb8ba62371a67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9de1ca37c99212a39e88373ae450fc2900ffa58ade49ef0f56a683b27c9fd9a3
[INFO] running `Command { std: "docker" "start" "-a" "9de1ca37c99212a39e88373ae450fc2900ffa58ade49ef0f56a683b27c9fd9a3", kill_on_drop: false }`
[INFO] [stderr]     Checking iter-set v2.0.2
[INFO] [stderr]     Checking elipdotter v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/query.rs:130:14
[INFO] [stdout]     |
[INFO] [stdout] 130 |     ) -> Box<(dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a)> {
[INFO] [stdout]     |              ^                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     ) -> Box<(dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a)> {
[INFO] [stdout] 130 +     ) -> Box<dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/query.rs:142:26
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 Target = (impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a),
[INFO] [stdout]     |                          ^                                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 142 -                 Target = (impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a),
[INFO] [stdout] 142 +                 Target = impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/query.rs:130:14
[INFO] [stdout]     |
[INFO] [stdout] 130 |     ) -> Box<(dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a)> {
[INFO] [stdout]     |              ^                                                                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 130 -     ) -> Box<(dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a)> {
[INFO] [stdout] 130 +     ) -> Box<dyn FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + 'a> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/query.rs:142:26
[INFO] [stdout]     |
[INFO] [stdout] 142 |                 Target = (impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a),
[INFO] [stdout]     |                          ^                                                                             ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 142 -                 Target = (impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a),
[INFO] [stdout] 142 +                 Target = impl FnMut(&'a str) -> Option<Box<dyn Iterator<Item = T> + 'a>> + ?Sized + 'a,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `WordOccurrence` is never constructed
[INFO] [stdout]    --> src/index.rs:398:12
[INFO] [stdout]     |
[INFO] [stdout] 398 | pub struct WordOccurrence {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `elipdotter` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `WordOccurrence` is never constructed
[INFO] [stdout]    --> src/index.rs:398:12
[INFO] [stdout]     |
[INFO] [stdout] 398 | pub struct WordOccurrence {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `elipdotter` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9de1ca37c99212a39e88373ae450fc2900ffa58ade49ef0f56a683b27c9fd9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9de1ca37c99212a39e88373ae450fc2900ffa58ade49ef0f56a683b27c9fd9a3", kill_on_drop: false }`
[INFO] [stdout] 9de1ca37c99212a39e88373ae450fc2900ffa58ade49ef0f56a683b27c9fd9a3
