[INFO] fetching crate profiler-symbol-server 0.2.0...
[INFO] checking profiler-symbol-server-0.2.0 against beta for pr-78714
[INFO] extracting crate profiler-symbol-server 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate profiler-symbol-server 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate profiler-symbol-server 0.2.0
[INFO] finished tweaking crates.io crate profiler-symbol-server 0.2.0
[INFO] tweaked toml for crates.io crate profiler-symbol-server 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate profiler-symbol-server 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6535a212c72652ba9345b057f85c02a828de3f1a8fb76c015a90a1c68eb8cbb8
[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" "6535a212c72652ba9345b057f85c02a828de3f1a8fb76c015a90a1c68eb8cbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6535a212c72652ba9345b057f85c02a828de3f1a8fb76c015a90a1c68eb8cbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6535a212c72652ba9345b057f85c02a828de3f1a8fb76c015a90a1c68eb8cbb8", kill_on_drop: false }`
[INFO] [stdout] 6535a212c72652ba9345b057f85c02a828de3f1a8fb76c015a90a1c68eb8cbb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] f11e128ecbfeeee6b68f29a6360f85fab27237d47a84fd1cc1bd2a794e84a51b
[INFO] running `Command { std: "docker" "start" "-a" "f11e128ecbfeeee6b68f29a6360f85fab27237d47a84fd1cc1bd2a794e84a51b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.25
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]     Checking arc-swap v0.4.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking wasmparser v0.54.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling core-foundation-sys v0.7.0
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking pdb v0.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking core-foundation v0.7.0
[INFO] [stderr]     Checking goblin v0.0.17
[INFO] [stderr]     Checking object v0.19.0
[INFO] [stderr]     Checking addr2line v0.12.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking backtrace v0.3.48
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking pin-project v0.4.17
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking profiler-get-symbols v0.1.0
[INFO] [stderr]     Checking profiler-symbol-server v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 36s
[INFO] running `Command { std: "docker" "inspect" "f11e128ecbfeeee6b68f29a6360f85fab27237d47a84fd1cc1bd2a794e84a51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f11e128ecbfeeee6b68f29a6360f85fab27237d47a84fd1cc1bd2a794e84a51b", kill_on_drop: false }`
[INFO] [stdout] f11e128ecbfeeee6b68f29a6360f85fab27237d47a84fd1cc1bd2a794e84a51b