[INFO] crate observer 0.2.1 is already in cache
[INFO] checking observer-0.2.1 against master#eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc for pr-69560
[INFO] extracting crate observer 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate observer 0.2.1 on toolchain eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate observer 0.2.1
[INFO] finished tweaking crates.io crate observer 0.2.1
[INFO] tweaked toml for crates.io crate observer 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+eaa02f599f651246d5d1b99e7a4c6fa8d04bc9dc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cddb468e664c434e0c8d7b6b71449420f99b6a68a8f6211f52fe3a77da448408
[INFO] running `"docker" "start" "-a" "cddb468e664c434e0c8d7b6b71449420f99b6a68a8f6211f52fe3a77da448408"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking sqlparser v0.5.0
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.3
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking r2d2 v0.8.8
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]     Checking diesel v1.4.3
[INFO] [stderr]    Compiling observer_attribute v0.1.6
[INFO] [stderr]     Checking log4rs v0.9.0
[INFO] [stderr]     Checking r2d2-diesel v1.0.0
[INFO] [stderr]     Checking observer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `"docker" "inspect" "cddb468e664c434e0c8d7b6b71449420f99b6a68a8f6211f52fe3a77da448408"`
[INFO] running `"docker" "rm" "-f" "cddb468e664c434e0c8d7b6b71449420f99b6a68a8f6211f52fe3a77da448408"`
[INFO] [stdout] cddb468e664c434e0c8d7b6b71449420f99b6a68a8f6211f52fe3a77da448408