[INFO] fetching crate horizon_logger 0.1.0...
[INFO] checking horizon_logger-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate horizon_logger 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate horizon_logger 0.1.0
[INFO] finished tweaking crates.io crate horizon_logger 0.1.0
[INFO] tweaked toml for crates.io crate horizon_logger 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate horizon_logger 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff1508721828d6c6fd8ef622430e3aa6c1d8d2bd2a6fa4407175f32588a72109
[INFO] running `Command { std: "docker" "start" "-a" "ff1508721828d6c6fd8ef622430e3aa6c1d8d2bd2a6fa4407175f32588a72109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff1508721828d6c6fd8ef622430e3aa6c1d8d2bd2a6fa4407175f32588a72109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1508721828d6c6fd8ef622430e3aa6c1d8d2bd2a6fa4407175f32588a72109", kill_on_drop: false }`
[INFO] [stdout] ff1508721828d6c6fd8ef622430e3aa6c1d8d2bd2a6fa4407175f32588a72109
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60a66008494faaa30870eb3d56ce744f5bd39e64cc49069cd0e02a5a6e700afd
[INFO] running `Command { std: "docker" "start" "-a" "60a66008494faaa30870eb3d56ce744f5bd39e64cc49069cd0e02a5a6e700afd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking nu-ansi-term v0.50.1
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking horizon_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Level` and `Subscriber`
[INFO] [stdout]  --> src/lib.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tracing::{Level, Subscriber};
[INFO] [stdout]   |               ^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Level` and `Subscriber`
[INFO] [stdout]  --> src/lib.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tracing::{Level, Subscriber};
[INFO] [stdout]   |               ^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subscriber`
[INFO] [stdout]   --> src/lib.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let subscriber = FmtSubscriber::builder()
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subscriber`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subscriber`
[INFO] [stdout]   --> src/lib.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let subscriber = FmtSubscriber::builder()
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subscriber`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `LogEntry` is more private than the item `HorizonLogger::get_history`
[INFO] [stdout]    --> src/lib.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get_history(&self) -> Vec<LogEntry> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `HorizonLogger::get_history` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `LogEntry` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/lib.rs:32:1
[INFO] [stdout]     |
[INFO] [stdout]  32 | struct LogEntry {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `level`, `component`, and `message` are never read
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct LogEntry {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 33 |     timestamp: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 34 |     level: LogLevel,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 35 |     component: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogEntry` 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: type `LogEntry` is more private than the item `HorizonLogger::get_history`
[INFO] [stdout]    --> src/lib.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn get_history(&self) -> Vec<LogEntry> {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method `HorizonLogger::get_history` is reachable at visibility `pub`
[INFO] [stdout]     |
[INFO] [stdout] note: but type `LogEntry` is only usable at visibility `pub(crate)`
[INFO] [stdout]    --> src/lib.rs:32:1
[INFO] [stdout]     |
[INFO] [stdout]  32 | struct LogEntry {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(private_interfaces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `timestamp`, `level`, `component`, and `message` are never read
[INFO] [stdout]   --> src/lib.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct LogEntry {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 33 |     timestamp: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 34 |     level: LogLevel,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 35 |     component: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 36 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogEntry` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.51s
[INFO] running `Command { std: "docker" "inspect" "60a66008494faaa30870eb3d56ce744f5bd39e64cc49069cd0e02a5a6e700afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a66008494faaa30870eb3d56ce744f5bd39e64cc49069cd0e02a5a6e700afd", kill_on_drop: false }`
[INFO] [stdout] 60a66008494faaa30870eb3d56ce744f5bd39e64cc49069cd0e02a5a6e700afd