[INFO] updating cached repository https://github.com/LFalch/falchbot
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 1a675fedd584c2aea5ed037d2765bd9875913589
[INFO] checking LFalch/falchbot against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLFalch%2Ffalchbot" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LFalch/falchbot on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/LFalch/falchbot
[INFO] finished tweaking git repo https://github.com/LFalch/falchbot
[INFO] tweaked toml for git repo https://github.com/LFalch/falchbot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/LFalch/falchbot already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 8c46391e16584cc15a6aa71c3dd16887defa3b04a628d794b14d40cb72b5e93a
[INFO] running `"docker" "start" "-a" "8c46391e16584cc15a6aa71c3dd16887defa3b04a628d794b14d40cb72b5e93a"`
[INFO] [stderr]    Compiling serenity v0.7.2
[INFO] [stderr]     Checking stalch v0.3.0 (http://github.com/LFalch/stalch.git#f5c638cb)
[INFO] [stderr]     Checking seximal v0.1.0 (http://github.com/LFalch/seximal.git#a556d34d)
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking tokio-rustls v0.10.2
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling command_attr v0.1.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking serde v1.0.102
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]     Checking falchbot v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `"docker" "inspect" "8c46391e16584cc15a6aa71c3dd16887defa3b04a628d794b14d40cb72b5e93a"`
[INFO] running `"docker" "rm" "-f" "8c46391e16584cc15a6aa71c3dd16887defa3b04a628d794b14d40cb72b5e93a"`
[INFO] [stdout] 8c46391e16584cc15a6aa71c3dd16887defa3b04a628d794b14d40cb72b5e93a