[INFO] fetching crate test-env-log 0.2.2...
[INFO] checking test-env-log-0.2.2 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate test-env-log 0.2.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate test-env-log 0.2.2 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy_static v1.4.0
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded slab v0.4.2
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded tokio-macros v0.2.6
[INFO] [stderr]   Downloaded pin-project-internal v0.4.27
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded pin-project-lite v0.1.11
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded pin-project v0.4.27
[INFO] [stderr]   Downloaded tokio v0.2.23
[INFO] [stderr]   Downloaded env_logger v0.7.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.15
[INFO] [stderr]   Downloaded syn v1.0.48
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded tracing-core v0.1.17
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded owning_ref v0.4.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.21
[INFO] [stderr]   Downloaded stable_deref_trait v1.2.0
[INFO] [stderr]   Downloaded tracing v0.1.21
[INFO] [stderr]   Downloaded tracing-futures v0.2.4
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded regex v1.4.2
[INFO] [stderr]   Downloaded tracing-subscriber v0.1.6
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af6a72f53f6ca175580b5a9519038c2d17b771b9c0520727b5173ccd26dd782b
[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" "af6a72f53f6ca175580b5a9519038c2d17b771b9c0520727b5173ccd26dd782b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af6a72f53f6ca175580b5a9519038c2d17b771b9c0520727b5173ccd26dd782b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af6a72f53f6ca175580b5a9519038c2d17b771b9c0520727b5173ccd26dd782b", kill_on_drop: false }`
[INFO] [stdout] af6a72f53f6ca175580b5a9519038c2d17b771b9c0520727b5173ccd26dd782b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f57c928ddd607412791e6e0f046537cbdb20d29c5ea8b50cb299343b117e3756
[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" "f57c928ddd607412791e6e0f046537cbdb20d29c5ea8b50cb299343b117e3756", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling test-env-log v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking tokio v0.2.23
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[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" "f57c928ddd607412791e6e0f046537cbdb20d29c5ea8b50cb299343b117e3756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57c928ddd607412791e6e0f046537cbdb20d29c5ea8b50cb299343b117e3756", kill_on_drop: false }`
[INFO] [stdout] f57c928ddd607412791e6e0f046537cbdb20d29c5ea8b50cb299343b117e3756