[INFO] fetching crate log4rs-logstash 0.1.0...
[INFO] checking log4rs-logstash-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate log4rs-logstash 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate log4rs-logstash 0.1.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log4rs-logstash 0.1.0
[INFO] finished tweaking crates.io crate log4rs-logstash 0.1.0
[INFO] tweaked toml for crates.io crate log4rs-logstash 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate log4rs-logstash 0.1.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logstash-rs v0.1.0
[INFO] [stderr]   Downloaded arc-swap v1.5.0
[INFO] [stderr]   Downloaded thread-id v4.0.0
[INFO] [stderr]   Downloaded log4rs v1.1.1
[INFO] [stderr]   Downloaded rustls v0.20.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8348d262302ede86897287982571ea38090b5c6688c2540c9ac819414aeb00a8
[INFO] running `Command { std: "docker" "start" "-a" "8348d262302ede86897287982571ea38090b5c6688c2540c9ac819414aeb00a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8348d262302ede86897287982571ea38090b5c6688c2540c9ac819414aeb00a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8348d262302ede86897287982571ea38090b5c6688c2540c9ac819414aeb00a8", kill_on_drop: false }`
[INFO] [stdout] 8348d262302ede86897287982571ea38090b5c6688c2540c9ac819414aeb00a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4c37e6328b7dd3c777ce7eb2dccf867a210d50e9cd36eb3d32ed03e9ed923e1
[INFO] running `Command { std: "docker" "start" "-a" "c4c37e6328b7dd3c777ce7eb2dccf867a210d50e9cd36eb3d32ed03e9ed923e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]     Checking arc-swap v1.5.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking thread-id v4.0.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking ordered-float v2.10.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking serde_yaml v0.8.24
[INFO] [stderr]     Checking humantime-serde v1.1.1
[INFO] [stderr]     Checking logstash-rs v0.1.0
[INFO] [stderr]     Checking log4rs v1.1.1
[INFO] [stderr]     Checking log4rs-logstash v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.61s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "c4c37e6328b7dd3c777ce7eb2dccf867a210d50e9cd36eb3d32ed03e9ed923e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4c37e6328b7dd3c777ce7eb2dccf867a210d50e9cd36eb3d32ed03e9ed923e1", kill_on_drop: false }`
[INFO] [stdout] c4c37e6328b7dd3c777ce7eb2dccf867a210d50e9cd36eb3d32ed03e9ed923e1