[INFO] cloning repository https://github.com/skobyakov/rust-json-parse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skobyakov/rust-json-parse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/skobyakov/rust-json-parse
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skobyakov/rust-json-parse" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a906bf94537138ef9101a2542edbaa5e589ebb5
[INFO] checking skobyakov/rust-json-parse against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse" "/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/skobyakov/rust-json-parse
[INFO] finished tweaking git repo https://github.com/skobyakov/rust-json-parse
[INFO] tweaked toml for git repo https://github.com/skobyakov/rust-json-parse written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skobyakov/rust-json-parse on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skobyakov/rust-json-parse 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] febeb6fc2ba0d1ba8ac8b3cfa56db7aad7e53528fee4e4c0fd1997cdcb0acff0
[INFO] running `Command { std: "docker" "start" "-a" "febeb6fc2ba0d1ba8ac8b3cfa56db7aad7e53528fee4e4c0fd1997cdcb0acff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "febeb6fc2ba0d1ba8ac8b3cfa56db7aad7e53528fee4e4c0fd1997cdcb0acff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "febeb6fc2ba0d1ba8ac8b3cfa56db7aad7e53528fee4e4c0fd1997cdcb0acff0", kill_on_drop: false }`
[INFO] [stdout] febeb6fc2ba0d1ba8ac8b3cfa56db7aad7e53528fee4e4c0fd1997cdcb0acff0
[INFO] checking skobyakov/rust-json-parse against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskobyakov%2Frust-json-parse" "/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/skobyakov/rust-json-parse
[INFO] finished tweaking git repo https://github.com/skobyakov/rust-json-parse
[INFO] tweaked toml for git repo https://github.com/skobyakov/rust-json-parse written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/skobyakov/rust-json-parse on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/skobyakov/rust-json-parse 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1af3f4de4ceb6ac2e434504d887817f76065878e73e75cc1195594f964d2167c
[INFO] running `Command { std: "docker" "start" "-a" "1af3f4de4ceb6ac2e434504d887817f76065878e73e75cc1195594f964d2167c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1af3f4de4ceb6ac2e434504d887817f76065878e73e75cc1195594f964d2167c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af3f4de4ceb6ac2e434504d887817f76065878e73e75cc1195594f964d2167c", kill_on_drop: false }`
[INFO] [stdout] 1af3f4de4ceb6ac2e434504d887817f76065878e73e75cc1195594f964d2167c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d4e79f2e66b4a4f9a3537883e1eb6a704891039ce060a85b971c24b7811651e
[INFO] running `Command { std: "docker" "start" "-a" "5d4e79f2e66b4a4f9a3537883e1eb6a704891039ce060a85b971c24b7811651e", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-json-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parser.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Object(HashMap<String, JSONParserState>),
[INFO] [stdout]   |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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] 7 -     Object(HashMap<String, JSONParserState>),
[INFO] [stdout] 7 +     Object(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parser.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     String(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is 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] 9 -     String(String),
[INFO] [stdout] 9 +     String(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Number(u64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is 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] 10 -     Number(u64),
[INFO] [stdout] 10 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Array`, `Boolean`, and `Null` are never constructed
[INFO] [stdout]   --> src/parser.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum JSONParserState {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout]  7 |     Object(HashMap<String, JSONParserState>),
[INFO] [stdout]  8 |     Array(Vec<JSONParserState>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     Null,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parser.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Object(HashMap<String, JSONParserState>),
[INFO] [stdout]   |     ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[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] 7 -     Object(HashMap<String, JSONParserState>),
[INFO] [stdout] 7 +     Object(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/parser.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     String(String),
[INFO] [stdout]   |     ------ ^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is 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] 9 -     String(String),
[INFO] [stdout] 9 +     String(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(input: &str) -> Lexer {
[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] 20 |     pub fn new(input: &str) -> Lexer<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Number(u64),
[INFO] [stdout]    |     ------ ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is 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] 10 -     Number(u64),
[INFO] [stdout] 10 +     Number(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Array`, `Boolean`, and `Null` are never constructed
[INFO] [stdout]   --> src/parser.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum JSONParserState {
[INFO] [stdout]    |          --------------- variants in this enum
[INFO] [stdout]  7 |     Object(HashMap<String, JSONParserState>),
[INFO] [stdout]  8 |     Array(Vec<JSONParserState>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Boolean(bool),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 12 |     Null,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `JSONParserState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lexer.rs:20:23
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn new(input: &str) -> Lexer {
[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] 20 |     pub fn new(input: &str) -> Lexer<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "5d4e79f2e66b4a4f9a3537883e1eb6a704891039ce060a85b971c24b7811651e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d4e79f2e66b4a4f9a3537883e1eb6a704891039ce060a85b971c24b7811651e", kill_on_drop: false }`
[INFO] [stdout] 5d4e79f2e66b4a4f9a3537883e1eb6a704891039ce060a85b971c24b7811651e
