[INFO] cloning repository https://github.com/jkcclemens/rmp_issue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkcclemens/rmp_issue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Frmp_issue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Frmp_issue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ca90c53838867a8a10fd3571590c5a339ec2ff8
[INFO] checking jkcclemens/rmp_issue against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkcclemens%2Frmp_issue" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkcclemens/rmp_issue on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkcclemens/rmp_issue
[INFO] finished tweaking git repo https://github.com/jkcclemens/rmp_issue
[INFO] tweaked toml for git repo https://github.com/jkcclemens/rmp_issue written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jkcclemens/rmp_issue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/zeyla/serenity`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "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] 56451b32826ba3f502ad1790b35c9b8789107a6c80d9dcb8f66c1356567fdfb9
[INFO] running `Command { std: "docker" "start" "-a" "56451b32826ba3f502ad1790b35c9b8789107a6c80d9dcb8f66c1356567fdfb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56451b32826ba3f502ad1790b35c9b8789107a6c80d9dcb8f66c1356567fdfb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56451b32826ba3f502ad1790b35c9b8789107a6c80d9dcb8f66c1356567fdfb9", kill_on_drop: false }`
[INFO] [stdout] 56451b32826ba3f502ad1790b35c9b8789107a6c80d9dcb8f66c1356567fdfb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fd90d0951329b898d282d8f5183b8c13e1ed796c0a65d6fa9720c31fbcc63e9
[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" "3fd90d0951329b898d282d8f5183b8c13e1ed796c0a65d6fa9720c31fbcc63e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]    Compiling serenity v0.5.8 (https://github.com/zeyla/serenity?branch=master#7237697d)
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stdout] error: This branch is no longer updated, please use the current branch or the 0.6.x branch.
[INFO] [stdout] Please check this document for more information: https://github.com/serenity-rs/serenity/blob/current/CONTRIBUTING.md#pull-requests
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/serenity-3ee4e93465cd5f21/7237697/build.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | /     compile_error!("This branch is no longer updated, please use the current branch or the 0.6.x branch.
[INFO] [stdout] 3 | | Please check this document for more information: https://github.com/serenity-rs/serenity/blob/current/CONTRIBUTING.md#pull-requests")
[INFO] [stdout]   | |_____________________________________________________________________________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serenity`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3fd90d0951329b898d282d8f5183b8c13e1ed796c0a65d6fa9720c31fbcc63e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd90d0951329b898d282d8f5183b8c13e1ed796c0a65d6fa9720c31fbcc63e9", kill_on_drop: false }`
[INFO] [stdout] 3fd90d0951329b898d282d8f5183b8c13e1ed796c0a65d6fa9720c31fbcc63e9