[INFO] fetching crate stashlog 0.0.13...
[INFO] checking stashlog-0.0.13 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate stashlog 0.0.13 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate stashlog 0.0.13
[INFO] finished tweaking crates.io crate stashlog 0.0.13
[INFO] tweaked toml for crates.io crate stashlog 0.0.13 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stashlog 0.0.13 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 89 packages to latest compatible versions
[INFO] [stderr]       Adding gethostname v0.5.0 (available: v1.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 570dfaef5c2f2aadca17147669647aaf68003724402ceac513d2a3c47958831c
[INFO] running `Command { std: "docker" "start" "-a" "570dfaef5c2f2aadca17147669647aaf68003724402ceac513d2a3c47958831c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "570dfaef5c2f2aadca17147669647aaf68003724402ceac513d2a3c47958831c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "570dfaef5c2f2aadca17147669647aaf68003724402ceac513d2a3c47958831c", kill_on_drop: false }`
[INFO] [stdout] 570dfaef5c2f2aadca17147669647aaf68003724402ceac513d2a3c47958831c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e4d590925da55a57b110a05574154fc9a8da033720a9cae39c72d688a3303b2
[INFO] running `Command { std: "docker" "start" "-a" "5e4d590925da55a57b110a05574154fc9a8da033720a9cae39c72d688a3303b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]     Checking linux-raw-sys v0.4.15
[INFO] [stderr]     Checking getrandom v0.4.2
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tempfile v3.27.0
[INFO] [stderr]     Checking gethostname v0.5.0
[INFO] [stderr]     Checking stashlog v0.0.13 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `stashlog` (lib) due to 1 previous error; 9 warnings emitted
[INFO] [stdout] error: struct `Config` is never constructed
[INFO] [stdout]   --> src/lib.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Config {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `version`, `app_name`, and `file_path` are never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 26 |     version: i8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     app_name: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     file_path: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Record` is never constructed
[INFO] [stdout]   --> src/lib.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct Record {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lib.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl Record {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 55 |     fn new(
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]   --> src/lib.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | struct Logger {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `log_extra`, `log`, `info_extra`, and `info` are never used
[INFO] [stdout]    --> src/lib.rs:87:8
[INFO] [stdout]     |
[INFO] [stdout]  86 | impl Logger {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout]  87 |     fn log_extra(&self, level: Level, message: &str, extra_fields: &str) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn log(&self, level: Level, message: &str) {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     pub fn info_extra(&self, message: &str, extra_fields: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn info(&self, message: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_to_file` is never used
[INFO] [stdout]    --> src/lib.rs:122:4
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn write_to_file(file_name: &str, data: &[u8]) -> Result<(), Error> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zulu_serializer` is never used
[INFO] [stdout]    --> src/lib.rs:140:4
[INFO] [stdout]     |
[INFO] [stdout] 140 | fn zulu_serializer<S>(datetime: &DateTime<Utc>, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | /         write_to_file(
[INFO] [stdout] 96 | |             self.config.file_path.as_str(),
[INFO] [stdout] 97 | |             serde_json::to_string(&record).unwrap().as_bytes(),
[INFO] [stdout] 98 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let _ = write_to_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 | /         write_to_file(
[INFO] [stdout] 109 | |             self.config.file_path.as_str(),
[INFO] [stdout] 110 | |             serde_json::to_string(&record).unwrap().as_bytes(),
[INFO] [stdout] 111 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let _ = write_to_file(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 | /         write_to_file(
[INFO] [stdout] 96 | |             self.config.file_path.as_str(),
[INFO] [stdout] 97 | |             serde_json::to_string(&record).unwrap().as_bytes(),
[INFO] [stdout] 98 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 95 |         let _ = write_to_file(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 | /         write_to_file(
[INFO] [stdout] 109 | |             self.config.file_path.as_str(),
[INFO] [stdout] 110 | |             serde_json::to_string(&record).unwrap().as_bytes(),
[INFO] [stdout] 111 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let _ = write_to_file(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5e4d590925da55a57b110a05574154fc9a8da033720a9cae39c72d688a3303b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e4d590925da55a57b110a05574154fc9a8da033720a9cae39c72d688a3303b2", kill_on_drop: false }`
[INFO] [stdout] 5e4d590925da55a57b110a05574154fc9a8da033720a9cae39c72d688a3303b2
