[INFO] fetching crate stashlog 0.0.13...
[INFO] building stashlog-0.0.13 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate stashlog 0.0.13 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stashlog 0.0.13 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding gethostname v0.5.0 (available: v1.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21a9847e35cad45000241cdec9435098462fb45c5b27e49fde2a04bec6864bb0
[INFO] running `Command { std: "docker" "start" "-a" "21a9847e35cad45000241cdec9435098462fb45c5b27e49fde2a04bec6864bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21a9847e35cad45000241cdec9435098462fb45c5b27e49fde2a04bec6864bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a9847e35cad45000241cdec9435098462fb45c5b27e49fde2a04bec6864bb0", kill_on_drop: false }`
[INFO] [stdout] 21a9847e35cad45000241cdec9435098462fb45c5b27e49fde2a04bec6864bb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efb5d2158c5741277072d84c0199824d7a9584d181dadda7b7cc4388e2866827
[INFO] running `Command { std: "docker" "start" "-a" "efb5d2158c5741277072d84c0199824d7a9584d181dadda7b7cc4388e2866827", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling gethostname v0.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling stashlog v0.0.13 (/opt/rustwide/workdir)
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.68s
[INFO] running `Command { std: "docker" "inspect" "efb5d2158c5741277072d84c0199824d7a9584d181dadda7b7cc4388e2866827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb5d2158c5741277072d84c0199824d7a9584d181dadda7b7cc4388e2866827", kill_on_drop: false }`
[INFO] [stdout] efb5d2158c5741277072d84c0199824d7a9584d181dadda7b7cc4388e2866827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5d440b3248d8c040166f73987cf6bc63fef7bb3f165113a454ceefd9fbd41fd
[INFO] running `Command { std: "docker" "start" "-a" "e5d440b3248d8c040166f73987cf6bc63fef7bb3f165113a454ceefd9fbd41fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling gethostname v0.5.0
[INFO] [stderr]    Compiling stashlog v0.0.13 (/opt/rustwide/workdir)
[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] [stderr]    Compiling tempfile v3.23.0
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "e5d440b3248d8c040166f73987cf6bc63fef7bb3f165113a454ceefd9fbd41fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5d440b3248d8c040166f73987cf6bc63fef7bb3f165113a454ceefd9fbd41fd", kill_on_drop: false }`
[INFO] [stdout] e5d440b3248d8c040166f73987cf6bc63fef7bb3f165113a454ceefd9fbd41fd
