[INFO] fetching crate cargo-src 0.1.8...
[INFO] testing cargo-src-0.1.8 against 1.55.0 for beta-1.56-1
[INFO] extracting crate cargo-src 0.1.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-src 0.1.8 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-src 0.1.8
[INFO] finished tweaking crates.io crate cargo-src 0.1.8
[INFO] tweaked toml for crates.io crate cargo-src 0.1.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-src 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 48c1c96f010b0b44158e8159d878b3b2e4e34cb6bf341ae34c08669709002917
[INFO] running `Command { std: "docker" "start" "-a" "48c1c96f010b0b44158e8159d878b3b2e4e34cb6bf341ae34c08669709002917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48c1c96f010b0b44158e8159d878b3b2e4e34cb6bf341ae34c08669709002917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c1c96f010b0b44158e8159d878b3b2e4e34cb6bf341ae34c08669709002917", kill_on_drop: false }`
[INFO] [stdout] 48c1c96f010b0b44158e8159d878b3b2e4e34cb6bf341ae34c08669709002917
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99ab5d1e381299e8474c4be2e859e62b51bb9258cf7c9d9f04f928d6edc1d293
[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" "99ab5d1e381299e8474c4be2e859e62b51bb9258cf7c9d9f04f928d6edc1d293", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling try-lock v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]    Compiling rls-blacklist v0.1.3
[INFO] [stderr]    Compiling lock_api v0.3.1
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling rls-span v0.4.1
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling cargo-src v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.0.4
[INFO] [stderr]    Compiling rustdoc-highlight v0.1.10
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling radix_trie v0.1.5
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stdout] error[E0463]: can't find crate for `rustc_parse`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustdoc-highlight-0.1.10/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | extern crate rustc_parse;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustdoc-highlight` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "99ab5d1e381299e8474c4be2e859e62b51bb9258cf7c9d9f04f928d6edc1d293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99ab5d1e381299e8474c4be2e859e62b51bb9258cf7c9d9f04f928d6edc1d293", kill_on_drop: false }`
[INFO] [stdout] 99ab5d1e381299e8474c4be2e859e62b51bb9258cf7c9d9f04f928d6edc1d293