[INFO] fetching crate slog-scope 4.3.0...
[INFO] checking slog-scope-4.3.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate slog-scope 4.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate slog-scope 4.3.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-scope 4.3.0
[INFO] finished tweaking crates.io crate slog-scope 4.3.0
[INFO] tweaked toml for crates.io crate slog-scope 4.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate slog-scope 4.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded chrono v0.4.4
[INFO] [stderr]   Downloaded isatty v0.1.8
[INFO] [stderr]   Downloaded slog-term v2.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9408bfd0c3ab7d1c81365c0316068b2c13af28b7a5a806da09d4847ea941525
[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" "a9408bfd0c3ab7d1c81365c0316068b2c13af28b7a5a806da09d4847ea941525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9408bfd0c3ab7d1c81365c0316068b2c13af28b7a5a806da09d4847ea941525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9408bfd0c3ab7d1c81365c0316068b2c13af28b7a5a806da09d4847ea941525", kill_on_drop: false }`
[INFO] [stdout] a9408bfd0c3ab7d1c81365c0316068b2c13af28b7a5a806da09d4847ea941525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a973a9b9ef689019893c98b8e1fa9f34e5e00d6d739255b3873ed2290f099346
[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" "a973a9b9ef689019893c98b8e1fa9f34e5e00d6d739255b3873ed2290f099346", 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 take_mut v0.2.2
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-scope v4.3.0 (/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 6.42s
[INFO] running `Command { std: "docker" "inspect" "a973a9b9ef689019893c98b8e1fa9f34e5e00d6d739255b3873ed2290f099346", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a973a9b9ef689019893c98b8e1fa9f34e5e00d6d739255b3873ed2290f099346", kill_on_drop: false }`
[INFO] [stdout] a973a9b9ef689019893c98b8e1fa9f34e5e00d6d739255b3873ed2290f099346