[INFO] fetching crate serde_dyn 0.4.0...
[INFO] checking serde_dyn-0.4.0 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate serde_dyn 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate serde_dyn 0.4.0 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dyn 0.4.0
[INFO] finished tweaking crates.io crate serde_dyn 0.4.0
[INFO] tweaked toml for crates.io crate serde_dyn 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded type-uuid-derive v0.1.2
[INFO] [stderr]   Downloaded type-uuid v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] c6eda148e256f04c52513b51056ab5f657821969128b011e008c045b8c3c8135
[INFO] running `Command { std: "docker" "start" "-a" "c6eda148e256f04c52513b51056ab5f657821969128b011e008c045b8c3c8135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6eda148e256f04c52513b51056ab5f657821969128b011e008c045b8c3c8135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6eda148e256f04c52513b51056ab5f657821969128b011e008c045b8c3c8135", kill_on_drop: false }`
[INFO] [stdout] c6eda148e256f04c52513b51056ab5f657821969128b011e008c045b8c3c8135
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20e1c483d9f8cb7130b28d476658d7dbfe9de9aaeaee4911202a3ca5feac5ce4
[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" "20e1c483d9f8cb7130b28d476658d7dbfe9de9aaeaee4911202a3ca5feac5ce4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling type-uuid-derive v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking type-uuid v0.1.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking ron v0.4.2
[INFO] [stderr]     Checking serde_dyn v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.17s
[INFO] running `Command { std: "docker" "inspect" "20e1c483d9f8cb7130b28d476658d7dbfe9de9aaeaee4911202a3ca5feac5ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20e1c483d9f8cb7130b28d476658d7dbfe9de9aaeaee4911202a3ca5feac5ce4", kill_on_drop: false }`
[INFO] [stdout] 20e1c483d9f8cb7130b28d476658d7dbfe9de9aaeaee4911202a3ca5feac5ce4