[INFO] fetching crate tracing-callgraph 0.1.0-alpha.1...
[INFO] checking tracing-callgraph-0.1.0-alpha.1 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate tracing-callgraph 0.1.0-alpha.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tracing-callgraph 0.1.0-alpha.1 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-callgraph 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate tracing-callgraph 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate tracing-callgraph 0.1.0-alpha.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate tracing-callgraph 0.1.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-attributes v0.1.9
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded tracing-core v0.1.12
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df45ac01ccd0eab85b2dedc42c0fb7410b7138d12beba63e25afcd8b8f33f4e4
[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" "df45ac01ccd0eab85b2dedc42c0fb7410b7138d12beba63e25afcd8b8f33f4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df45ac01ccd0eab85b2dedc42c0fb7410b7138d12beba63e25afcd8b8f33f4e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df45ac01ccd0eab85b2dedc42c0fb7410b7138d12beba63e25afcd8b8f33f4e4", kill_on_drop: false }`
[INFO] [stdout] df45ac01ccd0eab85b2dedc42c0fb7410b7138d12beba63e25afcd8b8f33f4e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14cdb9c751d0738c9eb813bc9f99d0f6a1b31800a1c5ce1fd527c0423ad1822d
[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" "14cdb9c751d0738c9eb813bc9f99d0f6a1b31800a1c5ce1fd527c0423ad1822d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking tracing-core v0.1.12
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking tracing-subscriber v0.2.10
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.9
[INFO] [stderr]     Checking tracing v0.1.18
[INFO] [stderr]     Checking tracing-callgraph v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.35s
[INFO] running `Command { std: "docker" "inspect" "14cdb9c751d0738c9eb813bc9f99d0f6a1b31800a1c5ce1fd527c0423ad1822d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14cdb9c751d0738c9eb813bc9f99d0f6a1b31800a1c5ce1fd527c0423ad1822d", kill_on_drop: false }`
[INFO] [stdout] 14cdb9c751d0738c9eb813bc9f99d0f6a1b31800a1c5ce1fd527c0423ad1822d