[INFO] fetching crate jsona 0.6.0...
[INFO] checking jsona-0.6.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate jsona 0.6.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate jsona 0.6.0
[INFO] finished tweaking crates.io crate jsona 0.6.0
[INFO] tweaked toml for crates.io crate jsona 0.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jsona 0.6.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jsona 0.6.0 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a87b447dd1b2ad764b02da7f9d04adbc82148b7b0ab422bfe12d85b02f59d85
[INFO] running `Command { std: "docker" "start" "-a" "6a87b447dd1b2ad764b02da7f9d04adbc82148b7b0ab422bfe12d85b02f59d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a87b447dd1b2ad764b02da7f9d04adbc82148b7b0ab422bfe12d85b02f59d85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a87b447dd1b2ad764b02da7f9d04adbc82148b7b0ab422bfe12d85b02f59d85", kill_on_drop: false }`
[INFO] [stdout] 6a87b447dd1b2ad764b02da7f9d04adbc82148b7b0ab422bfe12d85b02f59d85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe1f86f39b87cd85018a7be30d69889e93ac8a67713c1834094bea763a0515d
[INFO] running `Command { std: "docker" "start" "-a" "1fe1f86f39b87cd85018a7be30d69889e93ac8a67713c1834094bea763a0515d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]     Checking memoffset v0.6.5
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking countme v3.0.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking text-size v1.1.0
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking arc-swap v1.5.1
[INFO] [stderr]     Checking rowan v0.15.8
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]     Checking logos v0.12.1
[INFO] [stderr]     Checking thiserror v1.0.34
[INFO] [stderr]     Checking jsona v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/util/mapper.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct CharacterRange(u64, u64);
[INFO] [stdout]    |            -------------- ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `CharacterRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/dom/visitor.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<()> {
[INFO] [stdout]    |                                ^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<'_, ()> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/util/mapper.rs:46:27
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct CharacterRange(u64, u64);
[INFO] [stdout]    |            -------------- ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `CharacterRange` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/dom/visitor.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<()> {
[INFO] [stdout]    |                                ^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn visit_annotations(node: &Node) -> Visitor<'_, ()> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.32s
[INFO] running `Command { std: "docker" "inspect" "1fe1f86f39b87cd85018a7be30d69889e93ac8a67713c1834094bea763a0515d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe1f86f39b87cd85018a7be30d69889e93ac8a67713c1834094bea763a0515d", kill_on_drop: false }`
[INFO] [stdout] 1fe1f86f39b87cd85018a7be30d69889e93ac8a67713c1834094bea763a0515d