[INFO] crate flowc 0.8.2 is already in cache
[INFO] checking flowc-0.8.2 against master#4007d4ef26eab44bdabc2b7574d032152264d3ad for pr-66919
[INFO] extracting crate flowc 0.8.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate flowc 0.8.2 on toolchain 4007d4ef26eab44bdabc2b7574d032152264d3ad
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flowc 0.8.2
[INFO] finished tweaking crates.io crate flowc 0.8.2
[INFO] tweaked toml for crates.io crate flowc 0.8.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate flowc 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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-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" "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" "+4007d4ef26eab44bdabc2b7574d032152264d3ad" "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] 6726dc66f1f74d17d8d1c79350e9393fc1ab1a9f00a1743a8617f9a4565a88f7
[INFO] running `"docker" "start" "-a" "6726dc66f1f74d17d8d1c79350e9393fc1ab1a9f00a1743a8617f9a4565a88f7"`
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking simpath v1.3.1
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.51
[INFO] [stderr]    Compiling curl-sys v0.4.23
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking multimap v0.5.0
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking simplog v1.2.2
[INFO] [stderr]     Checking backtrace v0.3.38
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking instant v0.1.2
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking flow_impl v0.8.3
[INFO] [stderr]     Checking wasmi-validation v0.1.0
[INFO] [stderr]     Checking wasmi v0.4.5
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]     Checking flowrlib v0.8.2
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking flowclib v0.8.2
[INFO] [stderr]     Checking provider v0.8.3
[INFO] [stderr]     Checking flowc v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.78s
[INFO] running `"docker" "inspect" "6726dc66f1f74d17d8d1c79350e9393fc1ab1a9f00a1743a8617f9a4565a88f7"`
[INFO] running `"docker" "rm" "-f" "6726dc66f1f74d17d8d1c79350e9393fc1ab1a9f00a1743a8617f9a4565a88f7"`
[INFO] [stdout] 6726dc66f1f74d17d8d1c79350e9393fc1ab1a9f00a1743a8617f9a4565a88f7