[INFO] fetching crate immut_list 0.1.0...
[INFO] checking immut_list-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate immut_list 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate immut_list 0.1.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate immut_list 0.1.0
[INFO] finished tweaking crates.io crate immut_list 0.1.0
[INFO] tweaked toml for crates.io crate immut_list 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data_structure_traits v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6076bbbe0d19bfe26c26e2ea651c6d178291cd5b7469724e9e2c955b15559ec6
[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" "6076bbbe0d19bfe26c26e2ea651c6d178291cd5b7469724e9e2c955b15559ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6076bbbe0d19bfe26c26e2ea651c6d178291cd5b7469724e9e2c955b15559ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6076bbbe0d19bfe26c26e2ea651c6d178291cd5b7469724e9e2c955b15559ec6", kill_on_drop: false }`
[INFO] [stdout] 6076bbbe0d19bfe26c26e2ea651c6d178291cd5b7469724e9e2c955b15559ec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb684acedf679fbc209ac21d0a982e2ad186e2a2125269e195ed36fe5c25c6fc
[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" "eb684acedf679fbc209ac21d0a982e2ad186e2a2125269e195ed36fe5c25c6fc", kill_on_drop: false }`
[INFO] [stderr]     Checking data_structure_traits v0.1.12
[INFO] [stdout] error[E0432]: unresolved import `alloc::vec_deque`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/data_structure_traits-0.1.12/src/collections/vec_deque.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use alloc::vec_deque::VecDeque;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `vec_deque` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `data_structure_traits`.
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "eb684acedf679fbc209ac21d0a982e2ad186e2a2125269e195ed36fe5c25c6fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb684acedf679fbc209ac21d0a982e2ad186e2a2125269e195ed36fe5c25c6fc", kill_on_drop: false }`
[INFO] [stdout] eb684acedf679fbc209ac21d0a982e2ad186e2a2125269e195ed36fe5c25c6fc