[INFO] fetching crate slog-json 2.6.1...
[INFO] testing slog-json-2.6.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate slog-json 2.6.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate slog-json 2.6.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-json 2.6.1
[INFO] finished tweaking crates.io crate slog-json 2.6.1
[INFO] tweaked toml for crates.io crate slog-json 2.6.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate slog-json 2.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8c2ea098e90e3f22030c9df2a73d93d2dedd3f677100c04523c87611dd15627
[INFO] running `Command { std: "docker" "start" "-a" "b8c2ea098e90e3f22030c9df2a73d93d2dedd3f677100c04523c87611dd15627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8c2ea098e90e3f22030c9df2a73d93d2dedd3f677100c04523c87611dd15627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c2ea098e90e3f22030c9df2a73d93d2dedd3f677100c04523c87611dd15627", kill_on_drop: false }`
[INFO] [stdout] b8c2ea098e90e3f22030c9df2a73d93d2dedd3f677100c04523c87611dd15627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8cd4db1e210c904075ed94dc1762116daca9d663415ffe3463e7a57a0378d664
[INFO] running `Command { std: "docker" "start" "-a" "8cd4db1e210c904075ed94dc1762116daca9d663415ffe3463e7a57a0378d664", kill_on_drop: false }`
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling slog-json v2.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "8cd4db1e210c904075ed94dc1762116daca9d663415ffe3463e7a57a0378d664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd4db1e210c904075ed94dc1762116daca9d663415ffe3463e7a57a0378d664", kill_on_drop: false }`
[INFO] [stdout] 8cd4db1e210c904075ed94dc1762116daca9d663415ffe3463e7a57a0378d664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738f378b70f12f005f969f715e916d3c59cdd30f823cae634a86a66a4949dfa9
[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" "738f378b70f12f005f969f715e916d3c59cdd30f823cae634a86a66a4949dfa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling slog-async v2.7.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling slog-json v2.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "738f378b70f12f005f969f715e916d3c59cdd30f823cae634a86a66a4949dfa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738f378b70f12f005f969f715e916d3c59cdd30f823cae634a86a66a4949dfa9", kill_on_drop: false }`
[INFO] [stdout] 738f378b70f12f005f969f715e916d3c59cdd30f823cae634a86a66a4949dfa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dbb1b0e7b92c39d487b2cb9d65ceba058a799b96a241fa29373b2cf5a392ec92
[INFO] running `Command { std: "docker" "start" "-a" "dbb1b0e7b92c39d487b2cb9d65ceba058a799b96a241fa29373b2cf5a392ec92", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slog_json-9eb2221afdac586e)
[INFO] [stderr]    Doc-tests slog-json
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbb1b0e7b92c39d487b2cb9d65ceba058a799b96a241fa29373b2cf5a392ec92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb1b0e7b92c39d487b2cb9d65ceba058a799b96a241fa29373b2cf5a392ec92", kill_on_drop: false }`
[INFO] [stdout] dbb1b0e7b92c39d487b2cb9d65ceba058a799b96a241fa29373b2cf5a392ec92