[INFO] fetching crate flask 2.0.2...
[INFO] checking flask-2.0.2 against master#450abe80f193ccefbfcd48214d70520f2d507f0e for pr-73084
[INFO] extracting crate flask 2.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate flask 2.0.2 on toolchain 450abe80f193ccefbfcd48214d70520f2d507f0e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flask 2.0.2
[INFO] finished tweaking crates.io crate flask 2.0.2
[INFO] tweaked toml for crates.io crate flask 2.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+450abe80f193ccefbfcd48214d70520f2d507f0e" "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] adf8c208320877154e5daf0f82d02386053ec5952e9963953be238ff6e180d37
[INFO] running `"docker" "start" "-a" "adf8c208320877154e5daf0f82d02386053ec5952e9963953be238ff6e180d37"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking flask v2.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]     Checking assert-json-diff v1.0.3
[INFO] [stderr]     Checking mockito v0.25.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.05s
[INFO] running `"docker" "inspect" "adf8c208320877154e5daf0f82d02386053ec5952e9963953be238ff6e180d37"`
[INFO] running `"docker" "rm" "-f" "adf8c208320877154e5daf0f82d02386053ec5952e9963953be238ff6e180d37"`
[INFO] [stdout] adf8c208320877154e5daf0f82d02386053ec5952e9963953be238ff6e180d37