[INFO] cloning repository https://github.com/ShaneQi/my-imap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShaneQi/my-imap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fmy-imap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fmy-imap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9a76083b96445ead807935e291ac0b2fbc834d4
[INFO] checking ShaneQi/my-imap against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShaneQi%2Fmy-imap" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShaneQi/my-imap on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ShaneQi/my-imap
[INFO] finished tweaking git repo https://github.com/ShaneQi/my-imap
[INFO] tweaked toml for git repo https://github.com/ShaneQi/my-imap written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ShaneQi/my-imap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", 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] ec0a7f8480ff1ad160d0cd20e8d68b5ba5b83f5b1eb2f9feea4d6e83f7b2cdd7
[INFO] running `Command { std: "docker" "start" "-a" "ec0a7f8480ff1ad160d0cd20e8d68b5ba5b83f5b1eb2f9feea4d6e83f7b2cdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec0a7f8480ff1ad160d0cd20e8d68b5ba5b83f5b1eb2f9feea4d6e83f7b2cdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0a7f8480ff1ad160d0cd20e8d68b5ba5b83f5b1eb2f9feea4d6e83f7b2cdd7", kill_on_drop: false }`
[INFO] [stdout] ec0a7f8480ff1ad160d0cd20e8d68b5ba5b83f5b1eb2f9feea4d6e83f7b2cdd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 585d8223531827b59eac225c7bfa41e88b2db63ff310d81c7b5fb9872d377176
[INFO] running `Command { std: "docker" "start" "-a" "585d8223531827b59eac225c7bfa41e88b2db63ff310d81c7b5fb9872d377176", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking lexical-core v0.7.5
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking charset v0.1.2
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mailparse v0.13.3
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking simple_logger v1.11.0
[INFO] [stderr]     Checking imap-proto v0.10.2
[INFO] [stderr]     Checking imap v2.4.1
[INFO] [stderr]     Checking my-imap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `Command { std: "docker" "inspect" "585d8223531827b59eac225c7bfa41e88b2db63ff310d81c7b5fb9872d377176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585d8223531827b59eac225c7bfa41e88b2db63ff310d81c7b5fb9872d377176", kill_on_drop: false }`
[INFO] [stdout] 585d8223531827b59eac225c7bfa41e88b2db63ff310d81c7b5fb9872d377176