[INFO] cloning repository https://github.com/Faucette/rs-lambda
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Faucette/rs-lambda" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFaucette%2Frs-lambda", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFaucette%2Frs-lambda'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1bd7a563f5b6cae4c7d4b197433c048445736d3
[INFO] testing Faucette/rs-lambda against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFaucette%2Frs-lambda" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Faucette/rs-lambda on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Faucette/rs-lambda
[INFO] finished tweaking git repo https://github.com/Faucette/rs-lambda
[INFO] tweaked toml for git repo https://github.com/Faucette/rs-lambda written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Faucette/rs-lambda already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5f492c8e77d79df5f0b4db959c460264b463061059b474cdc6b2c5f8e8b17e5
[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" "c5f492c8e77d79df5f0b4db959c460264b463061059b474cdc6b2c5f8e8b17e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5f492c8e77d79df5f0b4db959c460264b463061059b474cdc6b2c5f8e8b17e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f492c8e77d79df5f0b4db959c460264b463061059b474cdc6b2c5f8e8b17e5", kill_on_drop: false }`
[INFO] [stdout] c5f492c8e77d79df5f0b4db959c460264b463061059b474cdc6b2c5f8e8b17e5
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2443b2ecf91053e9e5c1d5322795c1d3019a4d4c5a65386d70d9bfb8a598f999
[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" "2443b2ecf91053e9e5c1d5322795c1d3019a4d4c5a65386d70d9bfb8a598f999", kill_on_drop: false }`
[INFO] [stderr]    Compiling rng v0.1.0 (https://github.com/nathanfaucett/rs-rng#1b0519dd)
[INFO] [stderr]    Compiling collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits.git#e29b61b4)
[INFO] [stderr]    Compiling prng v0.1.0 (https://github.com/nathanfaucett/rs-prng#1e4d9022)
[INFO] [stdout] error[E0432]: unresolved import `alloc::arc`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-prng-45c50210de0d12df/1e4d902/src/atomic_prng.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::arc::Arc;
[INFO] [stdout]   |            ^^^ could not find `arc` in `alloc`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prng`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "2443b2ecf91053e9e5c1d5322795c1d3019a4d4c5a65386d70d9bfb8a598f999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2443b2ecf91053e9e5c1d5322795c1d3019a4d4c5a65386d70d9bfb8a598f999", kill_on_drop: false }`
[INFO] [stdout] 2443b2ecf91053e9e5c1d5322795c1d3019a4d4c5a65386d70d9bfb8a598f999