[INFO] cloning repository https://github.com/Hwks-9026/c4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hwks-9026/c4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHwks-9026%2Fc4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHwks-9026%2Fc4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7d252e015ecc0fb8476f5745860ec3aa43c5c02
[INFO] checking Hwks-9026/c4 against c60b92c03ca8a3b101eb9d57f51e2232690638c7 for pr-164148-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHwks-9026%2Fc4" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Hwks-9026/c4
[INFO] finished tweaking git repo https://github.com/Hwks-9026/c4
[INFO] tweaked toml for git repo https://github.com/Hwks-9026/c4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Hwks-9026/c4 on toolchain c60b92c03ca8a3b101eb9d57f51e2232690638c7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Hwks-9026/c4 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" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73
[INFO] running `Command { std: "docker" "start" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73" "/opt/rustwide/cargo-home/bin/cargo" "+c60b92c03ca8a3b101eb9d57f51e2232690638c7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling logos-derive v0.15.0
[INFO] [stderr]     Checking logos v0.15.0
[INFO] [stderr]     Checking c4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer.rs:111:21
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn parse(input: &str) -> Result<Vec<Token>, String> {
[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] 111 | pub fn parse(input: &str) -> Result<Vec<Token<'_>>, String> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn peek(&self) -> Option<&Token> {
[INFO] [stdout]     |             ^^^^^            ^^^^^^
[INFO] [stdout]     |             |                ||
[INFO] [stdout]     |             |                |the same lifetime is hidden here
[INFO] [stdout]     |             |                the same lifetime is elided here
[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] 181 |     fn peek(&self) -> Option<&Token<'_>> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:185:16
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn advance(&mut self) -> Option<&Token> {
[INFO] [stdout]     |                ^^^^^^^^^            ^^^^^^
[INFO] [stdout]     |                |                    ||
[INFO] [stdout]     |                |                    |the same lifetime is hidden here
[INFO] [stdout]     |                |                    the same lifetime is elided here
[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] 185 |     fn advance(&mut self) -> Option<&Token<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn expect(&self, tok: Token) -> Result<&Token, String> {
[INFO] [stdout]     |               ^^^^^                        ^^^^^^
[INFO] [stdout]     |               |                            ||
[INFO] [stdout]     |               |                            |the same lifetime is hidden here
[INFO] [stdout]     |               |                            the same lifetime is elided here
[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] 196 |     fn expect(&self, tok: Token) -> Result<&Token<'_>, String> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |             return Err(format!("Failed an expect. Expected {:?}, got {:?}", tok, parser_tok ).into())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         Err(format!("ran out of tokens while expecting {:?}.", tok).into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:206:27
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn expect_and_consume(&mut self, tok: Token) -> Result<&Token, String> {
[INFO] [stdout]     |                           ^^^^^^^^^                        ^^^^^^
[INFO] [stdout]     |                           |                                ||
[INFO] [stdout]     |                           |                                |the same lifetime is hidden here
[INFO] [stdout]     |                           |                                the same lifetime is elided here
[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] 206 |     fn expect_and_consume(&mut self, tok: Token) -> Result<&Token<'_>, String> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:211:24
[INFO] [stdout]     |
[INFO] [stdout] 211 |             return Err(format!("Failed an expect. Expected {:?}, got {:?}", tok, parser_tok ).into())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         Err(format!("ran out of tokens while expecting {:?}.", tok).into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tokenizer.rs:111:21
[INFO] [stdout]     |
[INFO] [stdout] 111 | pub fn parse(input: &str) -> Result<Vec<Token>, String> {
[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] 111 | pub fn parse(input: &str) -> Result<Vec<Token<'_>>, String> {
[INFO] [stdout]     |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:181:13
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn peek(&self) -> Option<&Token> {
[INFO] [stdout]     |             ^^^^^            ^^^^^^
[INFO] [stdout]     |             |                ||
[INFO] [stdout]     |             |                |the same lifetime is hidden here
[INFO] [stdout]     |             |                the same lifetime is elided here
[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] 181 |     fn peek(&self) -> Option<&Token<'_>> {
[INFO] [stdout]     |                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:185:16
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn advance(&mut self) -> Option<&Token> {
[INFO] [stdout]     |                ^^^^^^^^^            ^^^^^^
[INFO] [stdout]     |                |                    ||
[INFO] [stdout]     |                |                    |the same lifetime is hidden here
[INFO] [stdout]     |                |                    the same lifetime is elided here
[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] 185 |     fn advance(&mut self) -> Option<&Token<'_>> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn expect(&self, tok: Token) -> Result<&Token, String> {
[INFO] [stdout]     |               ^^^^^                        ^^^^^^
[INFO] [stdout]     |               |                            ||
[INFO] [stdout]     |               |                            |the same lifetime is hidden here
[INFO] [stdout]     |               |                            the same lifetime is elided here
[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] 196 |     fn expect(&self, tok: Token) -> Result<&Token<'_>, String> {
[INFO] [stdout]     |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c4` (bin "c4" test) due to 4 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:201:24
[INFO] [stdout]     |
[INFO] [stdout] 201 |             return Err(format!("Failed an expect. Expected {:?}, got {:?}", tok, parser_tok ).into())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         Err(format!("ran out of tokens while expecting {:?}.", tok).into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:206:27
[INFO] [stdout]     |
[INFO] [stdout] 206 |     fn expect_and_consume(&mut self, tok: Token) -> Result<&Token, String> {
[INFO] [stdout]     |                           ^^^^^^^^^                        ^^^^^^
[INFO] [stdout]     |                           |                                ||
[INFO] [stdout]     |                           |                                |the same lifetime is hidden here
[INFO] [stdout]     |                           |                                the same lifetime is elided here
[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] 206 |     fn expect_and_consume(&mut self, tok: Token) -> Result<&Token<'_>, String> {
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:211:24
[INFO] [stdout]     |
[INFO] [stdout] 211 |             return Err(format!("Failed an expect. Expected {:?}, got {:?}", tok, parser_tok ).into())
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `String` c4
[INFO] [stdout]    --> src/parser.rs:213:13
[INFO] [stdout]     |
[INFO] [stdout] 213 |         Err(format!("ran out of tokens while expecting {:?}.", tok).into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c4` (bin "c4") due to 4 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73", kill_on_drop: false }`
[INFO] [stdout] 625f50c330ac31a9047ea36561bcd95e17d7815f856f3007a1683365cc980d73
