[INFO] fetching crate stemjail 0.4.1...
[INFO] checking stemjail-0.4.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate stemjail 0.4.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate stemjail 0.4.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stemjail 0.4.1
[INFO] finished tweaking crates.io crate stemjail 0.4.1
[INFO] tweaked toml for crates.io crate stemjail 0.4.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30c0097164cb6d303ca1a3d1170d93efe4d134e94be1d34493d38f3d38fa3f0c
[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" "30c0097164cb6d303ca1a3d1170d93efe4d134e94be1d34493d38f3d38fa3f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30c0097164cb6d303ca1a3d1170d93efe4d134e94be1d34493d38f3d38fa3f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c0097164cb6d303ca1a3d1170d93efe4d134e94be1d34493d38f3d38fa3f0c", kill_on_drop: false }`
[INFO] [stdout] 30c0097164cb6d303ca1a3d1170d93efe4d134e94be1d34493d38f3d38fa3f0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4b57edf719e99ed2ae843e5f44d4c1855aaaa62618fd49953130415ccada2197
[INFO] running `Command { std: "docker" "start" "-a" "4b57edf719e99ed2ae843e5f44d4c1855aaaa62618fd49953130415ccada2197", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking dot v0.1.4
[INFO] [stderr]     Checking serde v0.7.15
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking toml v0.1.30
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking fd v0.2.3
[INFO] [stderr]     Checking unix_socket v0.5.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking mnt v0.3.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking stemflow v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking tty v0.4.5
[INFO] [stderr]     Checking fdpass v0.1.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stemflow-0.5.3/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate collections;
[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 `stemflow`
[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" "4b57edf719e99ed2ae843e5f44d4c1855aaaa62618fd49953130415ccada2197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b57edf719e99ed2ae843e5f44d4c1855aaaa62618fd49953130415ccada2197", kill_on_drop: false }`
[INFO] [stdout] 4b57edf719e99ed2ae843e5f44d4c1855aaaa62618fd49953130415ccada2197