[INFO] cloning repository https://github.com/divy-goes-random/json_tokenizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/divy-goes-random/json_tokenizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivy-goes-random%2Fjson_tokenizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivy-goes-random%2Fjson_tokenizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dd8e4fb70aefed168108dcd00523128947f2b15
[INFO] testing divy-goes-random/json_tokenizer against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdivy-goes-random%2Fjson_tokenizer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/divy-goes-random/json_tokenizer on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/divy-goes-random/json_tokenizer
[INFO] finished tweaking git repo https://github.com/divy-goes-random/json_tokenizer
[INFO] tweaked toml for git repo https://github.com/divy-goes-random/json_tokenizer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/divy-goes-random/json_tokenizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fa8e1f1255c92e219da6b44e7f8503dafb80fc66fa1c1341e7769002ce830797
[INFO] running `Command { std: "docker" "start" "-a" "fa8e1f1255c92e219da6b44e7f8503dafb80fc66fa1c1341e7769002ce830797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa8e1f1255c92e219da6b44e7f8503dafb80fc66fa1c1341e7769002ce830797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8e1f1255c92e219da6b44e7f8503dafb80fc66fa1c1341e7769002ce830797", kill_on_drop: false }`
[INFO] [stdout] fa8e1f1255c92e219da6b44e7f8503dafb80fc66fa1c1341e7769002ce830797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0f3930635b14ee0d8b7c535b96a2bbb683329498d5e55fd648605d524ad5698
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0f3930635b14ee0d8b7c535b96a2bbb683329498d5e55fd648605d524ad5698", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling json-tokenizer v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tokenizer.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tokenize`
[INFO] [stdout]  --> src/error.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Tokenize(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Parse`
[INFO] [stdout]  --> src/error.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Parse(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Other`
[INFO] [stdout]  --> src/error.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Other(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]  --> src/result.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Coma`
[INFO] [stdout]   --> src/tokenizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Coma,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CurlyOpen`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     CurlyOpen,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CurlyClose`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CurlyClose,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SquareOpen`
[INFO] [stdout]   --> src/tokenizer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     SquareOpen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SquareClose`
[INFO] [stdout]   --> src/tokenizer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     SquareClose,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringValue`
[INFO] [stdout]   --> src/tokenizer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     StringValue(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NumberValue`
[INFO] [stdout]   --> src/tokenizer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     NumberValue(f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BoolValue`
[INFO] [stdout]   --> src/tokenizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BoolValue(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NullValue`
[INFO] [stdout]   --> src/tokenizer.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     NullValue,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `char_stream`
[INFO] [stdout]   --> src/tokenizer.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     char_stream: PeekableIter<char>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_until`
[INFO] [stdout]   --> src/tokenizer.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn take_until(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_while`
[INFO] [stdout]   --> src/tokenizer.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn take_while(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]   --> src/tokenizer.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn skip(&mut self, ch: char) -> Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `string_token`
[INFO] [stdout]   --> src/tokenizer.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn string_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `number_token`
[INFO] [stdout]   --> src/tokenizer.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn number_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `keyword_token`
[INFO] [stdout]   --> src/tokenizer.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn keyword_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tokenize`
[INFO] [stdout]    --> src/tokenizer.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn tokenize(&mut self) -> Result<Vec<Token>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.75s
[INFO] running `Command { std: "docker" "inspect" "b0f3930635b14ee0d8b7c535b96a2bbb683329498d5e55fd648605d524ad5698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f3930635b14ee0d8b7c535b96a2bbb683329498d5e55fd648605d524ad5698", kill_on_drop: false }`
[INFO] [stdout] b0f3930635b14ee0d8b7c535b96a2bbb683329498d5e55fd648605d524ad5698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92ba99e894b63cc5e94bd8e9a272785ab0cf4527374e5e1d1f68081ab50f4f4b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "92ba99e894b63cc5e94bd8e9a272785ab0cf4527374e5e1d1f68081ab50f4f4b", kill_on_drop: false }`
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tokenizer.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Tokenize`
[INFO] [stdout]  --> src/error.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Tokenize(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Parse`
[INFO] [stdout]  --> src/error.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Parse(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Other`
[INFO] [stdout]  --> src/error.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Other(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Result`
[INFO] [stdout]  --> src/result.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Coma`
[INFO] [stdout]   --> src/tokenizer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Coma,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Colon`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CurlyOpen`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     CurlyOpen,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CurlyClose`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     CurlyClose,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SquareOpen`
[INFO] [stdout]   --> src/tokenizer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     SquareOpen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `SquareClose`
[INFO] [stdout]   --> src/tokenizer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     SquareClose,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringValue`
[INFO] [stdout]   --> src/tokenizer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     StringValue(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NumberValue`
[INFO] [stdout]   --> src/tokenizer.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     NumberValue(f64),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `BoolValue`
[INFO] [stdout]   --> src/tokenizer.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     BoolValue(bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NullValue`
[INFO] [stdout]   --> src/tokenizer.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     NullValue,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `char_stream`
[INFO] [stdout]   --> src/tokenizer.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     char_stream: PeekableIter<char>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_until`
[INFO] [stdout]   --> src/tokenizer.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn take_until(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `take_while`
[INFO] [stdout]   --> src/tokenizer.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn take_while(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip`
[INFO] [stdout]   --> src/tokenizer.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 63 |     fn skip(&mut self, ch: char) -> Result<()> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `string_token`
[INFO] [stdout]   --> src/tokenizer.rs:70:8
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn string_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `number_token`
[INFO] [stdout]   --> src/tokenizer.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn number_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `keyword_token`
[INFO] [stdout]   --> src/tokenizer.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn keyword_token(&mut self) -> Result<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tokenize`
[INFO] [stdout]    --> src/tokenizer.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn tokenize(&mut self) -> Result<Vec<Token>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling json-tokenizer v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/tokenizer.rs:134:20
[INFO] [stdout]     |
[INFO] [stdout] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stdout]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Parse`
[INFO] [stdout]  --> src/error.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Parse(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Other`
[INFO] [stdout]  --> src/error.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Other(String),
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "92ba99e894b63cc5e94bd8e9a272785ab0cf4527374e5e1d1f68081ab50f4f4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ba99e894b63cc5e94bd8e9a272785ab0cf4527374e5e1d1f68081ab50f4f4b", kill_on_drop: false }`
[INFO] [stdout] 92ba99e894b63cc5e94bd8e9a272785ab0cf4527374e5e1d1f68081ab50f4f4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f33aa89bc7090c400512a3511e2d95c9a06d95a533ed09c58c3fde8e4df2b5db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f33aa89bc7090c400512a3511e2d95c9a06d95a533ed09c58c3fde8e4df2b5db", kill_on_drop: false }`
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:134:20
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Tokenize`
[INFO] [stderr]  --> src/error.rs:5:3
[INFO] [stderr]   |
[INFO] [stderr] 5 |   Tokenize(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Parse`
[INFO] [stderr]  --> src/error.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Parse(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Other`
[INFO] [stderr]  --> src/error.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Other(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Result`
[INFO] [stderr]  --> src/result.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Coma`
[INFO] [stderr]   --> src/tokenizer.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Coma,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Colon`
[INFO] [stderr]   --> src/tokenizer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Colon,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CurlyOpen`
[INFO] [stderr]   --> src/tokenizer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     CurlyOpen,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CurlyClose`
[INFO] [stderr]   --> src/tokenizer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     CurlyClose,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SquareOpen`
[INFO] [stderr]   --> src/tokenizer.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     SquareOpen,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SquareClose`
[INFO] [stderr]   --> src/tokenizer.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     SquareClose,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `StringValue`
[INFO] [stderr]   --> src/tokenizer.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     StringValue(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NumberValue`
[INFO] [stderr]   --> src/tokenizer.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     NumberValue(f64),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BoolValue`
[INFO] [stderr]   --> src/tokenizer.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     BoolValue(bool),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NullValue`
[INFO] [stderr]   --> src/tokenizer.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     NullValue,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `char_stream`
[INFO] [stderr]   --> src/tokenizer.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     char_stream: PeekableIter<char>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take_until`
[INFO] [stderr]   --> src/tokenizer.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn take_until(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `take_while`
[INFO] [stderr]   --> src/tokenizer.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn take_while(&mut self, predicate: fn(char) -> bool) -> Result<Vec<char>> {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `skip`
[INFO] [stderr]   --> src/tokenizer.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn skip(&mut self, ch: char) -> Result<()> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `string_token`
[INFO] [stderr]   --> src/tokenizer.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn string_token(&mut self) -> Result<Token> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `number_token`
[INFO] [stderr]   --> src/tokenizer.rs:76:8
[INFO] [stderr]    |
[INFO] [stderr] 76 |     fn number_token(&mut self) -> Result<Token> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `keyword_token`
[INFO] [stderr]   --> src/tokenizer.rs:85:8
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn keyword_token(&mut self) -> Result<Token> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `tokenize`
[INFO] [stderr]    --> src/tokenizer.rs:102:12
[INFO] [stderr]     |
[INFO] [stderr] 102 |     pub fn tokenize(&mut self) -> Result<Vec<Token>> {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 23 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tokenizer.rs:134:20
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Parse`
[INFO] [stderr]  --> src/error.rs:6:3
[INFO] [stderr]   |
[INFO] [stderr] 6 |   Parse(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Other`
[INFO] [stderr]  --> src/error.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   Other(String),
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_tokenizer-0c683f633e21d406)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tokenizer::test_string_token ... ok
[INFO] [stdout] test tokenizer::test_false_token ... ok
[INFO] [stdout] test tokenizer::test_number_token ... ok
[INFO] [stdout] test tokenizer::test_null_token ... ok
[INFO] [stdout] test tokenizer::test_true_token ... ok
[INFO] [stdout] test tokenizer::test_tokenize_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json-tokenizer
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> /opt/rustwide/workdir/src/tokenizer.rs:134:20
[INFO] [stderr]     |
[INFO] [stderr] 134 |                 '0'...'9' => v.push(self.number_token()?),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[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" "f33aa89bc7090c400512a3511e2d95c9a06d95a533ed09c58c3fde8e4df2b5db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33aa89bc7090c400512a3511e2d95c9a06d95a533ed09c58c3fde8e4df2b5db", kill_on_drop: false }`
[INFO] [stdout] f33aa89bc7090c400512a3511e2d95c9a06d95a533ed09c58c3fde8e4df2b5db