[INFO] fetching crate slog-kvfilter 0.7.0...
[INFO] checking slog-kvfilter-0.7.0 against master#f1ce0e6a00593493a12e0e3662119786c761f375 for pr-92413
[INFO] extracting crate slog-kvfilter 0.7.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate slog-kvfilter 0.7.0 on toolchain f1ce0e6a00593493a12e0e3662119786c761f375
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-kvfilter 0.7.0
[INFO] finished tweaking crates.io crate slog-kvfilter 0.7.0
[INFO] tweaked toml for crates.io crate slog-kvfilter 0.7.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a31ed8dc0ab9b3684be9a4da830eae0c8bc91159e8a8eb68db7ba4f8e57f9d78
[INFO] running `Command { std: "docker" "start" "-a" "a31ed8dc0ab9b3684be9a4da830eae0c8bc91159e8a8eb68db7ba4f8e57f9d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a31ed8dc0ab9b3684be9a4da830eae0c8bc91159e8a8eb68db7ba4f8e57f9d78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31ed8dc0ab9b3684be9a4da830eae0c8bc91159e8a8eb68db7ba4f8e57f9d78", kill_on_drop: false }`
[INFO] [stdout] a31ed8dc0ab9b3684be9a4da830eae0c8bc91159e8a8eb68db7ba4f8e57f9d78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+f1ce0e6a00593493a12e0e3662119786c761f375" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a24a257d2d38752e637bee354f62d16ef4b6d22382389d84158b3e2428acae6e
[INFO] running `Command { std: "docker" "start" "-a" "a24a257d2d38752e637bee354f62d16ef4b6d22382389d84158b3e2428acae6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking slog-kvfilter v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:275:24
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 panic!(fmt);
[INFO] [stdout]     |                        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 panic!("{}", fmt);
[INFO] [stdout]     |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "a24a257d2d38752e637bee354f62d16ef4b6d22382389d84158b3e2428acae6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24a257d2d38752e637bee354f62d16ef4b6d22382389d84158b3e2428acae6e", kill_on_drop: false }`
[INFO] [stdout] a24a257d2d38752e637bee354f62d16ef4b6d22382389d84158b3e2428acae6e