[INFO] crate lettre_email 0.9.4 is already in cache
[INFO] checking lettre_email-0.9.4 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate lettre_email 0.9.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lettre_email 0.9.4 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lettre_email 0.9.4
[INFO] finished tweaking crates.io crate lettre_email 0.9.4
[INFO] tweaked toml for crates.io crate lettre_email 0.9.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate lettre_email 0.9.4 already has a lockfile, it will not be regenerated
[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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fff52401207c7ba43635ab401256df39103c2b9dba19b7cf8c5493922501d81
[INFO] running `"docker" "start" "-a" "2fff52401207c7ba43635ab401256df39103c2b9dba19b7cf8c5493922501d81"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking lettre v0.9.3
[INFO] [stderr]     Checking lettre_email v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.60s
[INFO] running `"docker" "inspect" "2fff52401207c7ba43635ab401256df39103c2b9dba19b7cf8c5493922501d81"`
[INFO] running `"docker" "rm" "-f" "2fff52401207c7ba43635ab401256df39103c2b9dba19b7cf8c5493922501d81"`
[INFO] [stdout] 2fff52401207c7ba43635ab401256df39103c2b9dba19b7cf8c5493922501d81