[INFO] updating cached repository https://github.com/mozilla/discourse-email-in-lambda
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 10e414700aefa73ea45cc4fd268a56f516a2d555
[INFO] checking mozilla/discourse-email-in-lambda against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmozilla%2Fdiscourse-email-in-lambda" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mozilla/discourse-email-in-lambda on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mozilla/discourse-email-in-lambda
[INFO] finished tweaking git repo https://github.com/mozilla/discourse-email-in-lambda
[INFO] tweaked toml for git repo https://github.com/mozilla/discourse-email-in-lambda written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mozilla/discourse-email-in-lambda already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5e74dd194cf79e202ec622ea16fc9459fad4549d5adfbf97e92c4fded922bf42
[INFO] running `"docker" "start" "-a" "5e74dd194cf79e202ec622ea16fc9459fad4549d5adfbf97e92c4fded922bf42"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking simple-error v0.2.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-process v0.2.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.33
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking lambda_runtime_client v0.2.2
[INFO] [stderr]     Checking rusoto_credential v0.40.0
[INFO] [stderr]     Checking reqwest v0.9.20
[INFO] [stderr]     Checking lambda_runtime_core v0.1.2
[INFO] [stderr]     Checking rusoto_core v0.40.0
[INFO] [stderr]     Checking lambda_runtime v0.2.1
[INFO] [stderr]     Checking rusoto_s3 v0.40.0
[INFO] [stderr]     Checking discourse-email-in-lambda v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/lambda.rs:23:29
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn my_handler(event: Value, ctx: Context) -> Result<(), HandlerError> {
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/lambda.rs:23:29
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn my_handler(event: Value, ctx: Context) -> Result<(), HandlerError> {
[INFO] [stderr]    |                             ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 13s
[INFO] running `"docker" "inspect" "5e74dd194cf79e202ec622ea16fc9459fad4549d5adfbf97e92c4fded922bf42"`
[INFO] running `"docker" "rm" "-f" "5e74dd194cf79e202ec622ea16fc9459fad4549d5adfbf97e92c4fded922bf42"`
[INFO] [stdout] 5e74dd194cf79e202ec622ea16fc9459fad4549d5adfbf97e92c4fded922bf42