[INFO] fetching crate keytree 0.2.4...
[INFO] testing keytree-0.2.4 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate keytree 0.2.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate keytree 0.2.4
[INFO] finished tweaking crates.io crate keytree 0.2.4
[INFO] tweaked toml for crates.io crate keytree 0.2.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate keytree 0.2.4 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98eb930f19cebb351ee90d382b05ff46235fd15fef035629434e635d1b84be2e
[INFO] running `Command { std: "docker" "start" "-a" "98eb930f19cebb351ee90d382b05ff46235fd15fef035629434e635d1b84be2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98eb930f19cebb351ee90d382b05ff46235fd15fef035629434e635d1b84be2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98eb930f19cebb351ee90d382b05ff46235fd15fef035629434e635d1b84be2e", kill_on_drop: false }`
[INFO] [stdout] 98eb930f19cebb351ee90d382b05ff46235fd15fef035629434e635d1b84be2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 569c174cc5176ebd29902ffdef16d7d5a3508a2a51549915a080e2d9b66802f5
[INFO] running `Command { std: "docker" "start" "-a" "569c174cc5176ebd29902ffdef16d7d5a3508a2a51549915a080e2d9b66802f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling keytree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `start_key` is never used
[INFO] [stdout]    --> src/lib.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Token {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 165 |     // Returns the index of the start character of the key in the data string.
[INFO] [stdout] 166 |     fn start_key(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:374:8
[INFO] [stdout]     |
[INFO] [stdout] 366 | impl KeyMap {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 374 |     fn get(&self, path: &UniquePath) -> Option<TokenIndex> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:419:15
[INFO] [stdout]     |
[INFO] [stdout] 419 |     EmptyIter(NonUniquePath),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Context` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 419 -     EmptyIter(NonUniquePath),
[INFO] [stdout] 419 +     EmptyIter(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:672:8
[INFO] [stdout]     |
[INFO] [stdout] 666 | impl KeyLen {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 672 |     fn get(&self, path: &NonUniquePath) -> Option<usize> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ch_indent` is never read
[INFO] [stdout]    --> src/parser.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout]  73 | pub struct BuildVars<'a> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 109 |     ch_indent:      Option<usize>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_line` is never used
[INFO] [stdout]    --> src/parser.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl<'a> BuildVars<'a> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn new_line(&mut self, pos: usize) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:630:13
[INFO] [stdout]     |
[INFO] [stdout] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context {
[INFO] [stdout]     |             ^^^^^ the lifetime is elided here     ^^^^^^^ the same lifetime is hidden 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] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/path.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |         &self.s.hash(state);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let _ = &self.s.hash(state);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "569c174cc5176ebd29902ffdef16d7d5a3508a2a51549915a080e2d9b66802f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "569c174cc5176ebd29902ffdef16d7d5a3508a2a51549915a080e2d9b66802f5", kill_on_drop: false }`
[INFO] [stdout] 569c174cc5176ebd29902ffdef16d7d5a3508a2a51549915a080e2d9b66802f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a877cb0339ac712b933102b20c4142cacbfab4cc410b83970d95b09b5f70f63
[INFO] running `Command { std: "docker" "start" "-a" "2a877cb0339ac712b933102b20c4142cacbfab4cc410b83970d95b09b5f70f63", kill_on_drop: false }`
[INFO] [stdout] warning: method `start_key` is never used
[INFO] [stdout]    --> src/lib.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Token {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 165 |     // Returns the index of the start character of the key in the data string.
[INFO] [stdout] 166 |     fn start_key(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:374:8
[INFO] [stdout]     |
[INFO] [stdout] 366 | impl KeyMap {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 374 |     fn get(&self, path: &UniquePath) -> Option<TokenIndex> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:419:15
[INFO] [stdout]     |
[INFO] [stdout] 419 |     EmptyIter(NonUniquePath),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Context` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 419 -     EmptyIter(NonUniquePath),
[INFO] [stdout] 419 +     EmptyIter(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:672:8
[INFO] [stdout]     |
[INFO] [stdout] 666 | impl KeyLen {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 672 |     fn get(&self, path: &NonUniquePath) -> Option<usize> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ch_indent` is never read
[INFO] [stdout]    --> src/parser.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout]  73 | pub struct BuildVars<'a> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 109 |     ch_indent:      Option<usize>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling keytree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `new_line` is never used
[INFO] [stdout]    --> src/parser.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl<'a> BuildVars<'a> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn new_line(&mut self, pos: usize) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:630:13
[INFO] [stdout]     |
[INFO] [stdout] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context {
[INFO] [stdout]     |             ^^^^^ the lifetime is elided here     ^^^^^^^ the same lifetime is hidden 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] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/path.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |         &self.s.hash(state);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let _ = &self.s.hash(state);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `start_key` is never used
[INFO] [stdout]    --> src/lib.rs:166:8
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl Token {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] 165 |     // Returns the index of the start character of the key in the data string.
[INFO] [stdout] 166 |     fn start_key(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:374:8
[INFO] [stdout]     |
[INFO] [stdout] 366 | impl KeyMap {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 374 |     fn get(&self, path: &UniquePath) -> Option<TokenIndex> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lib.rs:419:15
[INFO] [stdout]     |
[INFO] [stdout] 419 |     EmptyIter(NonUniquePath),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Context` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 419 -     EmptyIter(NonUniquePath),
[INFO] [stdout] 419 +     EmptyIter(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:672:8
[INFO] [stdout]     |
[INFO] [stdout] 666 | impl KeyLen {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 672 |     fn get(&self, path: &NonUniquePath) -> Option<usize> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ch_indent` is never read
[INFO] [stdout]    --> src/parser.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout]  73 | pub struct BuildVars<'a> {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 109 |     ch_indent:      Option<usize>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `new_line` is never used
[INFO] [stdout]    --> src/parser.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | impl<'a> BuildVars<'a> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 153 |     fn new_line(&mut self, pos: usize) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:630:13
[INFO] [stdout]     |
[INFO] [stdout] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context {
[INFO] [stdout]     |             ^^^^^ the lifetime is elided here     ^^^^^^^ the same lifetime is hidden 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] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/path.rs:520:9
[INFO] [stdout]     |
[INFO] [stdout] 520 |         &self.s.hash(state);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 520 |         let _ = &self.s.hash(state);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "2a877cb0339ac712b933102b20c4142cacbfab4cc410b83970d95b09b5f70f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a877cb0339ac712b933102b20c4142cacbfab4cc410b83970d95b09b5f70f63", kill_on_drop: false }`
[INFO] [stdout] 2a877cb0339ac712b933102b20c4142cacbfab4cc410b83970d95b09b5f70f63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d1ca52fad63808dcd13e509c3f1b3fdc4f188af54ed9e59fda76900ae70ab686
[INFO] running `Command { std: "docker" "start" "-a" "d1ca52fad63808dcd13e509c3f1b3fdc4f188af54ed9e59fda76900ae70ab686", kill_on_drop: false }`
[INFO] [stderr] warning: method `start_key` is never used
[INFO] [stderr]    --> src/lib.rs:166:8
[INFO] [stderr]     |
[INFO] [stderr] 164 | impl Token {
[INFO] [stderr]     | ---------- method in this implementation
[INFO] [stderr] 165 |     // Returns the index of the start character of the key in the data string.
[INFO] [stderr] 166 |     fn start_key(&self) -> usize {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get` is never used
[INFO] [stderr]    --> src/lib.rs:374:8
[INFO] [stderr]     |
[INFO] [stderr] 366 | impl KeyMap {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 374 |     fn get(&self, path: &UniquePath) -> Option<TokenIndex> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/lib.rs:419:15
[INFO] [stderr]     |
[INFO] [stderr] 419 |     EmptyIter(NonUniquePath),
[INFO] [stderr]     |     --------- ^^^^^^^^^^^^^
[INFO] [stderr]     |     |
[INFO] [stderr]     |     field in this variant
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Context` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]     |
[INFO] [stderr] 419 -     EmptyIter(NonUniquePath),
[INFO] [stderr] 419 +     EmptyIter(()),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: method `get` is never used
[INFO] [stderr]    --> src/lib.rs:672:8
[INFO] [stderr]     |
[INFO] [stderr] 666 | impl KeyLen {
[INFO] [stderr]     | ----------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 672 |     fn get(&self, path: &NonUniquePath) -> Option<usize> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `ch_indent` is never read
[INFO] [stderr]    --> src/parser.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr]  73 | pub struct BuildVars<'a> {
[INFO] [stderr]     |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 109 |     ch_indent:      Option<usize>,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `new_line` is never used
[INFO] [stderr]    --> src/parser.rs:153:8
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl<'a> BuildVars<'a> {
[INFO] [stderr]     | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 153 |     fn new_line(&mut self, pos: usize) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:630:13
[INFO] [stderr]     |
[INFO] [stderr] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context {
[INFO] [stderr]     |             ^^^^^ the lifetime is elided here     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 630 |     fn iter(&self, global_path: NonUniquePath) -> Context<'_> {
[INFO] [stderr]     |                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/path.rs:520:9
[INFO] [stderr]     |
[INFO] [stderr] 520 |         &self.s.hash(state);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 520 |         let _ = &self.s.hash(state);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `keytree` (lib) generated 8 warnings (run `cargo fix --lib -p keytree` to apply 1 suggestion)
[INFO] [stderr] warning: `keytree` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/keytree-7c6bfc8b6b526f7b)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-6f455c35b7381b7a)
[INFO] [stdout] test append_empty_and_nonunique ... ok
[INFO] [stdout] test append_to_empty ... ok
[INFO] [stdout] test append_to_non_unique ... ok
[INFO] [stdout] test append_to_empty_and_unique ... ok
[INFO] [stdout] test badly_formed_string_1 ... ok
[INFO] [stdout] test badly_formed_string_2 ... ok
[INFO] [stdout] test badly_formed_string_3 ... ok
[INFO] [stdout] test badly_formed_string_4 ... ok
[INFO] [stdout] test empty_unique_debug ... ok
[INFO] [stderr]    Doc-tests keytree
[INFO] [stdout] test last_index ... ok
[INFO] [stdout] test non_unique_equality_names ... ok
[INFO] [stdout] test non_unique_len ... ok
[INFO] [stdout] test append_empty_and_unique ... ok
[INFO] [stdout] test non_unique_truncate_1 ... ok
[INFO] [stdout] test non_unique_truncate_2 ... ok
[INFO] [stdout] test nonunique_empty_len ... ok
[INFO] [stdout] test nonunique_equality_names_2 ... ok
[INFO] [stdout] test nonunique_equality_names_3 ... ok
[INFO] [stdout] test parse_whitespace_1 ... ok
[INFO] [stdout] test parse_whitespace_3 ... ok
[INFO] [stdout] test parse_whitespace_4 ... ok
[INFO] [stdout] test path_empty ... ok
[INFO] [stdout] test path_is_empty_1 ... ok
[INFO] [stdout] test same_base_1 ... ok
[INFO] [stdout] test set_last_index ... ok
[INFO] [stdout] test unique_debug ... ok
[INFO] [stdout] test nonunique_tail_1 ... ok
[INFO] [stdout] test parse_whitespace_2 ... ok
[INFO] [stdout] test non_unique_to_unique ... ok
[INFO] [stdout] test unique_equality_indices_2 ... ok
[INFO] [stdout] test unique_equality_names ... ok
[INFO] [stdout] test unique_equality_names_2 ... ok
[INFO] [stdout] test unique_equality_names_3 ... ok
[INFO] [stdout] test unique_remove_2 ... ok
[INFO] [stdout] test unique_to_non_unique ... ok
[INFO] [stdout] test unique_truncate ... ok
[INFO] [stdout] test unique_empty_len ... ok
[INFO] [stdout] test nonunique_tail_2 ... ok
[INFO] [stdout] test unique_remove_1 ... ok
[INFO] [stdout] test non_unique_debug ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 131) ... FAILED
[INFO] [stdout] test src/lib.rs - Key (line 191) ... FAILED
[INFO] [stdout] test src/lib.rs - Key (line 192) ... FAILED
[INFO] [stdout] test src/lib.rs - Value (line 214) ... FAILED
[INFO] [stdout] test src/lib.rs - Value (line 213) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 83) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 131) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout]    --> src/lib.rs:132:8
[INFO] [stdout]     |
[INFO] [stdout] 132 | friends:    self.at("hobbit::friends::hobbit"),
[INFO] [stdout]     |        ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Key (line 191) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]    --> src/lib.rs:192:5
[INFO] [stdout]     |
[INFO] [stdout] 192 | name: Frodo Baggins
[INFO] [stdout]     |     ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Key (line 192) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]    --> src/lib.rs:193:4
[INFO] [stdout]     |
[INFO] [stdout] 193 | age:  98
[INFO] [stdout]     |    ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Value (line 214) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]    --> src/lib.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | age:  98
[INFO] [stdout]     |    ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Value (line 213) stdout ----
[INFO] [stdout] error: expected one of `!` or `::`, found `:`
[INFO] [stdout]    --> src/lib.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 | name: Frodo Baggins
[INFO] [stdout]     |     ^ expected one of `!` or `::`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 131)
[INFO] [stdout]     src/lib.rs - Key (line 191)
[INFO] [stdout]     src/lib.rs - Key (line 192)
[INFO] [stdout]     src/lib.rs - Value (line 213)
[INFO] [stdout]     src/lib.rs - Value (line 214)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 5 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d1ca52fad63808dcd13e509c3f1b3fdc4f188af54ed9e59fda76900ae70ab686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ca52fad63808dcd13e509c3f1b3fdc4f188af54ed9e59fda76900ae70ab686", kill_on_drop: false }`
[INFO] [stdout] d1ca52fad63808dcd13e509c3f1b3fdc4f188af54ed9e59fda76900ae70ab686
