[INFO] fetching crate imap 2.1.2...
[INFO] checking imap-2.1.2 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate imap 2.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate imap 2.1.2 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate imap 2.1.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate imap 2.1.2
[INFO] tweaked toml for crates.io crate imap 2.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate imap 2.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca01e3cd742ab4c658aadc67ba91397fa7502448a68157aac3f3f92819c7ef03
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca01e3cd742ab4c658aadc67ba91397fa7502448a68157aac3f3f92819c7ef03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca01e3cd742ab4c658aadc67ba91397fa7502448a68157aac3f3f92819c7ef03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca01e3cd742ab4c658aadc67ba91397fa7502448a68157aac3f3f92819c7ef03", kill_on_drop: false }`
[INFO] [stdout] ca01e3cd742ab4c658aadc67ba91397fa7502448a68157aac3f3f92819c7ef03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 14e325e4c36947271d6355a86faf3ed41cf0f026e27c96cfc8409afc53a02f12
[INFO] running `Command { std: "docker" "start" "-a" "14e325e4c36947271d6355a86faf3ed41cf0f026e27c96cfc8409afc53a02f12", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.53
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.22
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking base64 v0.12.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling openssl-sys v0.9.56
[INFO] [stderr]    Compiling ring v0.16.13
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking imap-proto v0.10.2
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking imap v2.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking rustls-native-certs v0.3.0
[INFO] [stderr]     Checking rustls-connector v0.11.0
[INFO] [stderr]     Checking lettre v0.9.3
[INFO] [stderr]     Checking lettre_email v0.9.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.00s
[INFO] running `Command { std: "docker" "inspect" "14e325e4c36947271d6355a86faf3ed41cf0f026e27c96cfc8409afc53a02f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e325e4c36947271d6355a86faf3ed41cf0f026e27c96cfc8409afc53a02f12", kill_on_drop: false }`
[INFO] [stdout] 14e325e4c36947271d6355a86faf3ed41cf0f026e27c96cfc8409afc53a02f12