[INFO] cloning repository https://github.com/rustodon/rustodon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustodon/rustodon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustodon%2Frustodon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustodon%2Frustodon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d873c4e75948512630baa75482afa8d307f99b3
[INFO] checking rustodon/rustodon against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustodon%2Frustodon" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustodon/rustodon on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rustodon/rustodon
[INFO] finished tweaking git repo https://github.com/rustodon/rustodon
[INFO] tweaked toml for git repo https://github.com/rustodon/rustodon written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rustodon/rustodon already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cf13326317127627da27e85f5580c3383758fb005b090fdb175b92f19a2b817
[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" "8cf13326317127627da27e85f5580c3383758fb005b090fdb175b92f19a2b817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cf13326317127627da27e85f5580c3383758fb005b090fdb175b92f19a2b817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf13326317127627da27e85f5580c3383758fb005b090fdb175b92f19a2b817", kill_on_drop: false }`
[INFO] [stdout] 8cf13326317127627da27e85f5580c3383758fb005b090fdb175b92f19a2b817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d628d74f9a8344d6495bbdefd55f45d829704cf6a312235cd22a82524b2961e
[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" "5d628d74f9a8344d6495bbdefd55f45d829704cf6a312235cd22a82524b2961e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling cc v1.0.30
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking percent-encoding v2.0.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]    Compiling if_chain v1.0.0
[INFO] [stderr]    Compiling rustodon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking resopt v0.1.0 (/opt/rustwide/workdir/lib/resopt)
[INFO] [stderr]     Checking flaken v0.2.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]     Checking thread_local v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]    Compiling rocket v0.4.2
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking block-padding v0.1.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pear_codegen v0.1.2
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking r2d2 v0.8.3
[INFO] [stderr] error: failed to run custom build command for `rustodon v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustodon-2a4d7f830ef34f76/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   build error: sass compiler not installed.
[INFO] [stderr]   please follow the instructions at https://sass-lang.com/install, making sure the `sass` executable is in your $PATH.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5d628d74f9a8344d6495bbdefd55f45d829704cf6a312235cd22a82524b2961e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d628d74f9a8344d6495bbdefd55f45d829704cf6a312235cd22a82524b2961e", kill_on_drop: false }`
[INFO] [stdout] 5d628d74f9a8344d6495bbdefd55f45d829704cf6a312235cd22a82524b2961e