[INFO] fetching crate slog-scope 4.4.0...
[INFO] checking slog-scope-4.4.0 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate slog-scope 4.4.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate slog-scope 4.4.0 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-scope 4.4.0
[INFO] finished tweaking crates.io crate slog-scope 4.4.0
[INFO] tweaked toml for crates.io crate slog-scope 4.4.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate slog-scope 4.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v0.3.5
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded isatty v0.1.8
[INFO] [stderr]   Downloaded slog-term v2.0.4
[INFO] [stderr]   Downloaded chrono v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf9f5aa96308320129c99b53f6f0c11a91a55dfef3314df603867fa6002fceb5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cf9f5aa96308320129c99b53f6f0c11a91a55dfef3314df603867fa6002fceb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf9f5aa96308320129c99b53f6f0c11a91a55dfef3314df603867fa6002fceb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9f5aa96308320129c99b53f6f0c11a91a55dfef3314df603867fa6002fceb5", kill_on_drop: false }`
[INFO] [stdout] cf9f5aa96308320129c99b53f6f0c11a91a55dfef3314df603867fa6002fceb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8a3daa4d93a39c37bad8cb8e2f8182e35cc14e265fdcfde1ef0fab1b1cdcf5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b8a3daa4d93a39c37bad8cb8e2f8182e35cc14e265fdcfde1ef0fab1b1cdcf5", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-scope v4.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking isatty v0.1.8
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking slog-term v2.0.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "4b8a3daa4d93a39c37bad8cb8e2f8182e35cc14e265fdcfde1ef0fab1b1cdcf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8a3daa4d93a39c37bad8cb8e2f8182e35cc14e265fdcfde1ef0fab1b1cdcf5", kill_on_drop: false }`
[INFO] [stdout] 4b8a3daa4d93a39c37bad8cb8e2f8182e35cc14e265fdcfde1ef0fab1b1cdcf5