[INFO] fetching crate mailme 0.1.1...
[INFO] checking mailme-0.1.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate mailme 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate mailme 0.1.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mailme 0.1.1
[INFO] finished tweaking crates.io crate mailme 0.1.1
[INFO] tweaked toml for crates.io crate mailme 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] a1d7d2b0d8cea589d72f8b88faf82bbd7dbe6f8d7a3cb23f6c96c90fb3227635
[INFO] running `Command { std: "docker" "start" "-a" "a1d7d2b0d8cea589d72f8b88faf82bbd7dbe6f8d7a3cb23f6c96c90fb3227635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1d7d2b0d8cea589d72f8b88faf82bbd7dbe6f8d7a3cb23f6c96c90fb3227635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d7d2b0d8cea589d72f8b88faf82bbd7dbe6f8d7a3cb23f6c96c90fb3227635", kill_on_drop: false }`
[INFO] [stdout] a1d7d2b0d8cea589d72f8b88faf82bbd7dbe6f8d7a3cb23f6c96c90fb3227635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] ff8401097db2f2d0e89b99d7d81f06bc12c8ae10bbfa9864f8cbe3506ab7fc2d
[INFO] running `Command { std: "docker" "start" "-a" "ff8401097db2f2d0e89b99d7d81f06bc12c8ae10bbfa9864f8cbe3506ab7fc2d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling tokio v0.3.6
[INFO] [stderr]    Compiling nom v6.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking tokio-rustls v0.20.0
[INFO] [stderr]     Checking mailme v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.70s
[INFO] running `Command { std: "docker" "inspect" "ff8401097db2f2d0e89b99d7d81f06bc12c8ae10bbfa9864f8cbe3506ab7fc2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8401097db2f2d0e89b99d7d81f06bc12c8ae10bbfa9864f8cbe3506ab7fc2d", kill_on_drop: false }`
[INFO] [stdout] ff8401097db2f2d0e89b99d7d81f06bc12c8ae10bbfa9864f8cbe3506ab7fc2d