[INFO] fetching crate kb 0.0.1...
[INFO] testing kb-0.0.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate kb 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate kb 0.0.1
[INFO] finished tweaking crates.io crate kb 0.0.1
[INFO] tweaked toml for crates.io crate kb 0.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kb 0.0.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kb 0.0.1 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 440b326456769efcdecb8e509a68ab6c7e3ed89ee14ea3171aa23ee7453664f4
[INFO] running `Command { std: "docker" "start" "-a" "440b326456769efcdecb8e509a68ab6c7e3ed89ee14ea3171aa23ee7453664f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "440b326456769efcdecb8e509a68ab6c7e3ed89ee14ea3171aa23ee7453664f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "440b326456769efcdecb8e509a68ab6c7e3ed89ee14ea3171aa23ee7453664f4", kill_on_drop: false }`
[INFO] [stdout] 440b326456769efcdecb8e509a68ab6c7e3ed89ee14ea3171aa23ee7453664f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9084a0298d7fe96b56897b9f98a86bf8a88e2a9c9c4184a0ba08521edad975ae
[INFO] running `Command { std: "docker" "start" "-a" "9084a0298d7fe96b56897b9f98a86bf8a88e2a9c9c4184a0ba08521edad975ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling kb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         pos = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |             pos += 1;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:81:20
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token, Mark)>, BasicError> {
[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] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token<'_>, Mark)>, BasicError> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lexer.rs:410:15
[INFO] [stdout]     |
[INFO] [stdout] 410 |     fn new(s: &str) -> Chars {
[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] 410 |     fn new(s: &str) -> Chars<'_> {
[INFO] [stdout]     |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rcstr.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn chars(&self) -> Ref<Chars> {
[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] 38 |     fn chars(&self) -> Ref<'_, Chars> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:219:19
[INFO] [stdout]     |
[INFO] [stdout] 219 |     pub fn borrow(&self) -> Ref<Vec<Val>> {
[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] 219 |     pub fn borrow(&self) -> Ref<'_, Vec<Val>> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn borrow_mut(&self) -> RefMut<Vec<Val>> {
[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] 222 |     pub fn borrow_mut(&self) -> RefMut<'_, Vec<Val>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "9084a0298d7fe96b56897b9f98a86bf8a88e2a9c9c4184a0ba08521edad975ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9084a0298d7fe96b56897b9f98a86bf8a88e2a9c9c4184a0ba08521edad975ae", kill_on_drop: false }`
[INFO] [stdout] 9084a0298d7fe96b56897b9f98a86bf8a88e2a9c9c4184a0ba08521edad975ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dce30a59c0529716d625937df4c7e4b83b3f9215db79a9d1b834491a466ab615
[INFO] running `Command { std: "docker" "start" "-a" "dce30a59c0529716d625937df4c7e4b83b3f9215db79a9d1b834491a466ab615", kill_on_drop: false }`
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         pos = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling kb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |             pos += 1;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:81:20
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token, Mark)>, BasicError> {
[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] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token<'_>, Mark)>, BasicError> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lexer.rs:410:15
[INFO] [stdout]     |
[INFO] [stdout] 410 |     fn new(s: &str) -> Chars {
[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] 410 |     fn new(s: &str) -> Chars<'_> {
[INFO] [stdout]     |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rcstr.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn chars(&self) -> Ref<Chars> {
[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] 38 |     fn chars(&self) -> Ref<'_, Chars> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:219:19
[INFO] [stdout]     |
[INFO] [stdout] 219 |     pub fn borrow(&self) -> Ref<Vec<Val>> {
[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] 219 |     pub fn borrow(&self) -> Ref<'_, Vec<Val>> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn borrow_mut(&self) -> RefMut<Vec<Val>> {
[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] 222 |     pub fn borrow_mut(&self) -> RefMut<'_, Vec<Val>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:168:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         pos = 0;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `pos` is never read
[INFO] [stdout]    --> src/code.rs:200:13
[INFO] [stdout]     |
[INFO] [stdout] 200 |             pos += 1;
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:81:20
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token, Mark)>, BasicError> {
[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] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token<'_>, Mark)>, BasicError> {
[INFO] [stdout]    |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lexer.rs:410:15
[INFO] [stdout]     |
[INFO] [stdout] 410 |     fn new(s: &str) -> Chars {
[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] 410 |     fn new(s: &str) -> Chars<'_> {
[INFO] [stdout]     |                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lexer.rs:448:17
[INFO] [stdout]     |
[INFO] [stdout] 448 |     fn lex(src: &Rc<Source>) -> Vec<Token> {
[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] 448 |     fn lex(src: &Rc<Source>) -> Vec<Token<'_>> {
[INFO] [stdout]     |                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/rcstr.rs:38:14
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn chars(&self) -> Ref<Chars> {
[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] 38 |     fn chars(&self) -> Ref<'_, Chars> {
[INFO] [stdout]    |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:219:19
[INFO] [stdout]     |
[INFO] [stdout] 219 |     pub fn borrow(&self) -> Ref<Vec<Val>> {
[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] 219 |     pub fn borrow(&self) -> Ref<'_, Vec<Val>> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/val.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn borrow_mut(&self) -> RefMut<Vec<Val>> {
[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] 222 |     pub fn borrow_mut(&self) -> RefMut<'_, Vec<Val>> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "dce30a59c0529716d625937df4c7e4b83b3f9215db79a9d1b834491a466ab615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce30a59c0529716d625937df4c7e4b83b3f9215db79a9d1b834491a466ab615", kill_on_drop: false }`
[INFO] [stdout] dce30a59c0529716d625937df4c7e4b83b3f9215db79a9d1b834491a466ab615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d69c5083946bf22d2c54aef908c6b6a2eea26e789d184b283b57811d7284db1d
[INFO] running `Command { std: "docker" "start" "-a" "d69c5083946bf22d2c54aef908c6b6a2eea26e789d184b283b57811d7284db1d", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/code.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         pos = 0;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/code.rs:200:13
[INFO] [stderr]     |
[INFO] [stderr] 200 |             pos += 1;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lexer.rs:81:20
[INFO] [stderr]    |
[INFO] [stderr] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token, Mark)>, BasicError> {
[INFO] [stderr]    |                    ^^^^^^^^^^^                 ^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is elided 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] 81 | pub fn lex(source: &Rc<Source>) -> Result<Vec<(Token<'_>, Mark)>, BasicError> {
[INFO] [stderr]    |                                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lexer.rs:410:15
[INFO] [stderr]     |
[INFO] [stderr] 410 |     fn new(s: &str) -> Chars {
[INFO] [stderr]     |               ^^^^     ^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 410 |     fn new(s: &str) -> Chars<'_> {
[INFO] [stderr]     |                             ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/rcstr.rs:38:14
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn chars(&self) -> Ref<Chars> {
[INFO] [stderr]    |              ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |              |
[INFO] [stderr]    |              the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn chars(&self) -> Ref<'_, Chars> {
[INFO] [stderr]    |                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/val.rs:219:19
[INFO] [stderr]     |
[INFO] [stderr] 219 |     pub fn borrow(&self) -> Ref<Vec<Val>> {
[INFO] [stderr]     |                   ^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 219 |     pub fn borrow(&self) -> Ref<'_, Vec<Val>> {
[INFO] [stderr]     |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/val.rs:222:23
[INFO] [stderr]     |
[INFO] [stderr] 222 |     pub fn borrow_mut(&self) -> RefMut<Vec<Val>> {
[INFO] [stderr]     |                       ^^^^^     ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 222 |     pub fn borrow_mut(&self) -> RefMut<'_, Vec<Val>> {
[INFO] [stderr]     |                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `kb` (lib) generated 7 warnings (run `cargo fix --lib -p kb` to apply 5 suggestions)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lexer.rs:448:17
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn lex(src: &Rc<Source>) -> Vec<Token> {
[INFO] [stderr]     |                 ^^^^^^^^^^^         ^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 448 |     fn lex(src: &Rc<Source>) -> Vec<Token<'_>> {
[INFO] [stderr]     |                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `kb` (lib test) generated 8 warnings (7 duplicates) (run `cargo fix --lib -p kb --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/kb-2dea30599a33bdb4)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test code::tests::enum_sizes ... ok
[INFO] [stdout] test val::tests::val_size ... ok
[INFO] [stdout] test lexer::tests::misc ... ok
[INFO] [stdout] test lexer::tests::raw_string_literals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/kb.rs (/opt/rustwide/target/debug/deps/kb-67784c8db7cac1ab)
[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] [stderr]    Doc-tests kb
[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] running `Command { std: "docker" "inspect" "d69c5083946bf22d2c54aef908c6b6a2eea26e789d184b283b57811d7284db1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d69c5083946bf22d2c54aef908c6b6a2eea26e789d184b283b57811d7284db1d", kill_on_drop: false }`
[INFO] [stdout] d69c5083946bf22d2c54aef908c6b6a2eea26e789d184b283b57811d7284db1d
