[INFO] fetching crate tracing-logstash 0.7.0...
[INFO] building tracing-logstash-0.7.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tracing-logstash 0.7.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tracing-logstash 0.7.0
[INFO] finished tweaking crates.io crate tracing-logstash 0.7.0
[INFO] tweaked toml for crates.io crate tracing-logstash 0.7.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracing-logstash 0.7.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[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] [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b59753ba1ca8944415329927a0ad9be6edfef0ec04cb98ec8d69bb26665b93d1
[INFO] running `Command { std: "docker" "start" "-a" "b59753ba1ca8944415329927a0ad9be6edfef0ec04cb98ec8d69bb26665b93d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b59753ba1ca8944415329927a0ad9be6edfef0ec04cb98ec8d69bb26665b93d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b59753ba1ca8944415329927a0ad9be6edfef0ec04cb98ec8d69bb26665b93d1", kill_on_drop: false }`
[INFO] [stdout] b59753ba1ca8944415329927a0ad9be6edfef0ec04cb98ec8d69bb26665b93d1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7315b594d2ec80a2396e4f75ea6e26440ac70e1bcc12ba056d0f25e92df35087
[INFO] running `Command { std: "docker" "start" "-a" "7315b594d2ec80a2396e4f75ea6e26440ac70e1bcc12ba056d0f25e92df35087", kill_on_drop: false }`
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling tracing-logstash v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `EventRecorder` is never used
[INFO] [stdout]  --> src/event_recorder.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait EventRecorder {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "7315b594d2ec80a2396e4f75ea6e26440ac70e1bcc12ba056d0f25e92df35087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7315b594d2ec80a2396e4f75ea6e26440ac70e1bcc12ba056d0f25e92df35087", kill_on_drop: false }`
[INFO] [stdout] 7315b594d2ec80a2396e4f75ea6e26440ac70e1bcc12ba056d0f25e92df35087
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78c0f467dba20e5ae337e50c8c6d98d05ac4dba05775fd4dc86ff5d1b19a079b
[INFO] running `Command { std: "docker" "start" "-a" "78c0f467dba20e5ae337e50c8c6d98d05ac4dba05775fd4dc86ff5d1b19a079b", kill_on_drop: false }`
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling tracing-logstash v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `EventRecorder` is never used
[INFO] [stdout]  --> src/event_recorder.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait EventRecorder {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EventRecorder` is never used
[INFO] [stdout]  --> src/event_recorder.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait EventRecorder {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.58s
[INFO] running `Command { std: "docker" "inspect" "78c0f467dba20e5ae337e50c8c6d98d05ac4dba05775fd4dc86ff5d1b19a079b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c0f467dba20e5ae337e50c8c6d98d05ac4dba05775fd4dc86ff5d1b19a079b", kill_on_drop: false }`
[INFO] [stdout] 78c0f467dba20e5ae337e50c8c6d98d05ac4dba05775fd4dc86ff5d1b19a079b