[INFO] cloning repository https://github.com/rustwarsaw/rustwarsaw.org
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustwarsaw/rustwarsaw.org" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwarsaw%2Frustwarsaw.org", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwarsaw%2Frustwarsaw.org'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d73e1825f0af5cc8e2f68c32cd683c50d4c0a1f4
[INFO] checking rustwarsaw/rustwarsaw.org against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustwarsaw%2Frustwarsaw.org" "/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/rustwarsaw/rustwarsaw.org on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustwarsaw/rustwarsaw.org
[INFO] finished tweaking git repo https://github.com/rustwarsaw/rustwarsaw.org
[INFO] tweaked toml for git repo https://github.com/rustwarsaw/rustwarsaw.org written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rustwarsaw/rustwarsaw.org already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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-4/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[INFO] the lockfile is outdated, regenerating it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" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33d3476fd4b4de3a839812292de772eb8ec8e1190df340543dcf28f78ef5a61a
[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" "33d3476fd4b4de3a839812292de772eb8ec8e1190df340543dcf28f78ef5a61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33d3476fd4b4de3a839812292de772eb8ec8e1190df340543dcf28f78ef5a61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d3476fd4b4de3a839812292de772eb8ec8e1190df340543dcf28f78ef5a61a", kill_on_drop: false }`
[INFO] [stdout] 33d3476fd4b4de3a839812292de772eb8ec8e1190df340543dcf28f78ef5a61a
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2b6d53586dd090dac765f960967cefba71d89b077bc89f746894c721db6aa3
[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" "ff2b6d53586dd090dac765f960967cefba71d89b077bc89f746894c721db6aa3", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking sequence_trie v0.0.13
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking unicode-normalization v0.1.14
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v0.5.10
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking hyper v0.8.1
[INFO] [stderr]     Checking iron v0.3.1
[INFO] [stderr]     Checking mount v0.1.0
[INFO] [stderr]     Checking staticfile v0.2.0
[INFO] [stderr]     Checking rustwarsaw v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.93s
[INFO] running `Command { std: "docker" "inspect" "ff2b6d53586dd090dac765f960967cefba71d89b077bc89f746894c721db6aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2b6d53586dd090dac765f960967cefba71d89b077bc89f746894c721db6aa3", kill_on_drop: false }`
[INFO] [stdout] ff2b6d53586dd090dac765f960967cefba71d89b077bc89f746894c721db6aa3