[INFO] fetching crate bgr 0.1.3...
[INFO] checking bgr-0.1.3 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate bgr 0.1.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate bgr 0.1.3
[INFO] finished tweaking crates.io crate bgr 0.1.3
[INFO] tweaked toml for crates.io crate bgr 0.1.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bgr 0.1.3 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bgr 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e79d321034197b761a6d296de8f3b013462bcaa88323e38bffce35f3376e4551
[INFO] running `Command { std: "docker" "start" "-a" "e79d321034197b761a6d296de8f3b013462bcaa88323e38bffce35f3376e4551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e79d321034197b761a6d296de8f3b013462bcaa88323e38bffce35f3376e4551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79d321034197b761a6d296de8f3b013462bcaa88323e38bffce35f3376e4551", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b98f43dbea4b95780022cf1fb3f15139d1ecdb930df68e3488c6f9167bc3c58f
[INFO] running `Command { std: "docker" "start" "-a" "b98f43dbea4b95780022cf1fb3f15139d1ecdb930df68e3488c6f9167bc3c58f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling unicode-ident v1.0.18
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[INFO] [stderr]     Checking bgr v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `FilterExpression` is never constructed
[INFO] [stdout]   --> src/buggudb.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum PathSegment {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     FilterExpression(Box<FilterExpr>), // Advanced filtering: [?(@.status=="active")]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Equals`, `GreaterThan`, and `LessThan` are never constructed
[INFO] [stdout]   --> src/buggudb.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum FilterExpr {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 33 |     Equals(String, String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     GreaterThan(String, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 35 |     LessThan(String, f64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]   --> src/buggudb.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct MetaEntry {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 44 |     /// The sequence of tokens generated from the document's content.
[INFO] [stdout] 45 |     tokens: Vec<Tok>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `max_postings` and `stale_secs` are never read
[INFO] [stdout]    --> src/buggudb.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 417 | pub struct BugguDB {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 431 |     max_postings: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 432 |     /// The time in seconds after which a document is considered stale.
[INFO] [stdout] 433 |     stale_secs: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BugguDB` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remove`, `empty`, and `retain_docs` are never used
[INFO] [stdout]    --> src/buggudb.rs:486:8
[INFO] [stdout]     |
[INFO] [stdout] 451 | impl Posting {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 486 |     fn remove(&mut self, id: DocId) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 520 |     fn empty(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 530 |     fn retain_docs(&mut self, docs: &BugguHashSet<DocId, MetaEntry>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/buggu_hash_set.rs:843:18
[INFO] [stdout]     |
[INFO] [stdout] 843 |     pub fn entry(&mut self, key: K) -> BugguEntry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^             ---------------- the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 843 |     pub fn entry(&mut self, key: K) -> BugguEntry<'_, K, V> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/utils/buggu_hash_set.rs:1066:22
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     pub fn iter_keys(&self) -> BugguKeyIterator<K, V> {
[INFO] [stdout]      |                      ^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     pub fn iter_keys(&self) -> BugguKeyIterator<'_, K, V> {
[INFO] [stdout]      |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/utils/buggu_hash_set.rs:1076:21
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub fn iter_mut(&mut self) -> BugguIterMut<K, V> {
[INFO] [stdout]      |                     ^^^^^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub fn iter_mut(&mut self) -> BugguIterMut<'_, K, V> {
[INFO] [stdout]      |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FilterExpression` is never constructed
[INFO] [stdout]   --> src/buggudb.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | enum PathSegment {
[INFO] [stdout]    |      ----------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 29 |     FilterExpression(Box<FilterExpr>), // Advanced filtering: [?(@.status=="active")]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Equals`, `GreaterThan`, and `LessThan` are never constructed
[INFO] [stdout]   --> src/buggudb.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | enum FilterExpr {
[INFO] [stdout]    |      ---------- variants in this enum
[INFO] [stdout] 33 |     Equals(String, String),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 34 |     GreaterThan(String, f64),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 35 |     LessThan(String, f64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tokens` is never read
[INFO] [stdout]   --> src/buggudb.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct MetaEntry {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 44 |     /// The sequence of tokens generated from the document's content.
[INFO] [stdout] 45 |     tokens: Vec<Tok>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MetaEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `max_postings` and `stale_secs` are never read
[INFO] [stdout]    --> src/buggudb.rs:431:5
[INFO] [stdout]     |
[INFO] [stdout] 417 | pub struct BugguDB {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 431 |     max_postings: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 432 |     /// The time in seconds after which a document is considered stale.
[INFO] [stdout] 433 |     stale_secs: u64,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BugguDB` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `remove`, `empty`, and `retain_docs` are never used
[INFO] [stdout]    --> src/buggudb.rs:486:8
[INFO] [stdout]     |
[INFO] [stdout] 451 | impl Posting {
[INFO] [stdout]     | ------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 486 |     fn remove(&mut self, id: DocId) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 520 |     fn empty(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 530 |     fn retain_docs(&mut self, docs: &BugguHashSet<DocId, MetaEntry>) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/utils/buggu_hash_set.rs:843:18
[INFO] [stdout]     |
[INFO] [stdout] 843 |     pub fn entry(&mut self, key: K) -> BugguEntry<K, V> {
[INFO] [stdout]     |                  ^^^^^^^^^             ---------------- the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 843 |     pub fn entry(&mut self, key: K) -> BugguEntry<'_, K, V> {
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/utils/buggu_hash_set.rs:1066:22
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     pub fn iter_keys(&self) -> BugguKeyIterator<K, V> {
[INFO] [stdout]      |                      ^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1066 |     pub fn iter_keys(&self) -> BugguKeyIterator<'_, K, V> {
[INFO] [stdout]      |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/utils/buggu_hash_set.rs:1076:21
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub fn iter_mut(&mut self) -> BugguIterMut<K, V> {
[INFO] [stdout]      |                     ^^^^^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     pub fn iter_mut(&mut self) -> BugguIterMut<'_, K, V> {
[INFO] [stdout]      |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "b98f43dbea4b95780022cf1fb3f15139d1ecdb930df68e3488c6f9167bc3c58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b98f43dbea4b95780022cf1fb3f15139d1ecdb930df68e3488c6f9167bc3c58f", kill_on_drop: false }`
[INFO] [stdout] b98f43dbea4b95780022cf1fb3f15139d1ecdb930df68e3488c6f9167bc3c58f
