[INFO] fetching crate gcmodule_derive 0.3.3...
[INFO] testing gcmodule_derive-0.3.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate gcmodule_derive 0.3.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gcmodule_derive 0.3.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gcmodule_derive 0.3.3
[INFO] finished tweaking crates.io crate gcmodule_derive 0.3.3
[INFO] tweaked toml for crates.io crate gcmodule_derive 0.3.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 8266ecc9fdd9aedf374454202d7b0fba1aad0a251ed993b7f7ed7d84bd47fa88
[INFO] running `Command { std: "docker" "start" "-a" "8266ecc9fdd9aedf374454202d7b0fba1aad0a251ed993b7f7ed7d84bd47fa88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8266ecc9fdd9aedf374454202d7b0fba1aad0a251ed993b7f7ed7d84bd47fa88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8266ecc9fdd9aedf374454202d7b0fba1aad0a251ed993b7f7ed7d84bd47fa88", kill_on_drop: false }`
[INFO] [stdout] 8266ecc9fdd9aedf374454202d7b0fba1aad0a251ed993b7f7ed7d84bd47fa88
[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=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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dfafe88ea8d46fc652d75ffa1dbe6a2ca1b2a135e57274f5ffb47c377e97727
[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" "3dfafe88ea8d46fc652d75ffa1dbe6a2ca1b2a135e57274f5ffb47c377e97727", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling gcmodule_derive v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.85s
[INFO] running `Command { std: "docker" "inspect" "3dfafe88ea8d46fc652d75ffa1dbe6a2ca1b2a135e57274f5ffb47c377e97727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dfafe88ea8d46fc652d75ffa1dbe6a2ca1b2a135e57274f5ffb47c377e97727", kill_on_drop: false }`
[INFO] [stdout] 3dfafe88ea8d46fc652d75ffa1dbe6a2ca1b2a135e57274f5ffb47c377e97727
[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=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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--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] 3461cd0da688c5dd1ac71cfc62869c94093b255ee1768160909fb7bc250d8e36
[INFO] running `Command { std: "docker" "start" "-a" "3461cd0da688c5dd1ac71cfc62869c94093b255ee1768160909fb7bc250d8e36", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcmodule_derive v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `gcmodule`
[INFO] [stdout]  --> tests/trace.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[derive(DeriveTrace)]
[INFO] [stdout]   |              ^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `gcmodule_derive`
[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" "3461cd0da688c5dd1ac71cfc62869c94093b255ee1768160909fb7bc250d8e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3461cd0da688c5dd1ac71cfc62869c94093b255ee1768160909fb7bc250d8e36", kill_on_drop: false }`
[INFO] [stdout] 3461cd0da688c5dd1ac71cfc62869c94093b255ee1768160909fb7bc250d8e36