[INFO] fetching crate test-env-log 0.2.2...
[INFO] testing test-env-log-0.2.2 against 1.47.0 for beta-1.48-1
[INFO] extracting crate test-env-log 0.2.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate test-env-log 0.2.2 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-env-log 0.2.2
[INFO] finished tweaking crates.io crate test-env-log 0.2.2
[INFO] tweaked toml for crates.io crate test-env-log 0.2.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9e20f1d16a9449cd38156edf781cb0052cd8c6be043644c5c4f63c7b0a99ef4
[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" "d9e20f1d16a9449cd38156edf781cb0052cd8c6be043644c5c4f63c7b0a99ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9e20f1d16a9449cd38156edf781cb0052cd8c6be043644c5c4f63c7b0a99ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9e20f1d16a9449cd38156edf781cb0052cd8c6be043644c5c4f63c7b0a99ef4", kill_on_drop: false }`
[INFO] [stdout] d9e20f1d16a9449cd38156edf781cb0052cd8c6be043644c5c4f63c7b0a99ef4
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c73161a1df9d39954efc6c579087f9b114e09a81eefb53249062099034db70a
[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" "1c73161a1df9d39954efc6c579087f9b114e09a81eefb53249062099034db70a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling test-env-log v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.19s
[INFO] running `Command { std: "docker" "inspect" "1c73161a1df9d39954efc6c579087f9b114e09a81eefb53249062099034db70a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c73161a1df9d39954efc6c579087f9b114e09a81eefb53249062099034db70a", kill_on_drop: false }`
[INFO] [stdout] 1c73161a1df9d39954efc6c579087f9b114e09a81eefb53249062099034db70a
[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=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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--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] 1e8ce904d2db4713bef8ad039139561e8de902e9fa8978d786a378bf7a40c6ec
[INFO] running `Command { std: "docker" "start" "-a" "1e8ce904d2db4713bef8ad039139561e8de902e9fa8978d786a378bf7a40c6ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling tracing v0.1.21
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling tracing-subscriber v0.1.6
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling test-env-log v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `instrument` in this scope
[INFO] [stdout]   --> tests/mod.rs:40:3
[INFO] [stdout]    |
[INFO] [stdout] 40 | #[instrument]
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tracing::instrument`
[INFO] [stdout]  --> tests/mod.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tracing::instrument;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-env-log`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "1e8ce904d2db4713bef8ad039139561e8de902e9fa8978d786a378bf7a40c6ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8ce904d2db4713bef8ad039139561e8de902e9fa8978d786a378bf7a40c6ec", kill_on_drop: false }`
[INFO] [stdout] 1e8ce904d2db4713bef8ad039139561e8de902e9fa8978d786a378bf7a40c6ec
