[INFO] fetching crate postoffice 0.0.19...
[INFO] checking postoffice-0.0.19 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate postoffice 0.0.19 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate postoffice 0.0.19 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate postoffice 0.0.19
[INFO] finished tweaking crates.io crate postoffice 0.0.19
[INFO] tweaked toml for crates.io crate postoffice 0.0.19 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "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" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8e693aaa7e5d310bfe5204db212c5c2902cc068e984b01e5f6f8323d3eb2eb9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "8e693aaa7e5d310bfe5204db212c5c2902cc068e984b01e5f6f8323d3eb2eb9c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking universal-hash v0.3.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking aead v0.2.0
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking polyval v0.3.3
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking ghash v0.2.3
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking aes-gcm v0.3.2
[INFO] [stderr]     Checking postoffice v0.0.19 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.08s
[INFO] running `"docker" "inspect" "8e693aaa7e5d310bfe5204db212c5c2902cc068e984b01e5f6f8323d3eb2eb9c"`
[INFO] running `"docker" "rm" "-f" "8e693aaa7e5d310bfe5204db212c5c2902cc068e984b01e5f6f8323d3eb2eb9c"`
[INFO] [stdout] 8e693aaa7e5d310bfe5204db212c5c2902cc068e984b01e5f6f8323d3eb2eb9c