[INFO] fetching crate tracing-serde 0.1.1...
[INFO] checking tracing-serde-0.1.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate tracing-serde 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tracing-serde 0.1.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-serde 0.1.1
[INFO] finished tweaking crates.io crate tracing-serde 0.1.1
[INFO] tweaked toml for crates.io crate tracing-serde 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daff697aae12a5f58d799ec8d0f39a2c3e1e653bb8212a13f591383c676513dc
[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" "daff697aae12a5f58d799ec8d0f39a2c3e1e653bb8212a13f591383c676513dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daff697aae12a5f58d799ec8d0f39a2c3e1e653bb8212a13f591383c676513dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daff697aae12a5f58d799ec8d0f39a2c3e1e653bb8212a13f591383c676513dc", kill_on_drop: false }`
[INFO] [stdout] daff697aae12a5f58d799ec8d0f39a2c3e1e653bb8212a13f591383c676513dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8ec2b552d727094d7e251d50a4c2e3aa025310b3f71169f981aa2ec2b104dcb
[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" "d8ec2b552d727094d7e251d50a4c2e3aa025310b3f71169f981aa2ec2b104dcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tracing-core v0.1.14
[INFO] [stderr]     Checking tracing-serde v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `Command { std: "docker" "inspect" "d8ec2b552d727094d7e251d50a4c2e3aa025310b3f71169f981aa2ec2b104dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8ec2b552d727094d7e251d50a4c2e3aa025310b3f71169f981aa2ec2b104dcb", kill_on_drop: false }`
[INFO] [stdout] d8ec2b552d727094d7e251d50a4c2e3aa025310b3f71169f981aa2ec2b104dcb
