[INFO] fetching crate concurrent-stack 0.1.0...
[INFO] checking concurrent-stack-0.1.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate concurrent-stack 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate concurrent-stack 0.1.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concurrent-stack 0.1.0
[INFO] finished tweaking crates.io crate concurrent-stack 0.1.0
[INFO] tweaked toml for crates.io crate concurrent-stack 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] ec8fa26fbb2f18c327370936984a23d01599941564f1122c18c9c9f418c16b5a
[INFO] running `Command { std: "docker" "start" "-a" "ec8fa26fbb2f18c327370936984a23d01599941564f1122c18c9c9f418c16b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec8fa26fbb2f18c327370936984a23d01599941564f1122c18c9c9f418c16b5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec8fa26fbb2f18c327370936984a23d01599941564f1122c18c9c9f418c16b5a", kill_on_drop: false }`
[INFO] [stdout] ec8fa26fbb2f18c327370936984a23d01599941564f1122c18c9c9f418c16b5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2e236c9328e8641e75e4a84dc3f4ba721803492f47430bb251f0d07a15a3231
[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" "b2e236c9328e8641e75e4a84dc3f4ba721803492f47430bb251f0d07a15a3231", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking atomic-stamped-ptr v0.1.1
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/atomic-stamped-ptr-0.1.1/src/lib.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |           asm!("
[INFO] [stdout]    |           ^---
[INFO] [stdout]    |           |
[INFO] [stdout]    |  _________help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 71 | |                 lock cmpxchg16b $1
[INFO] [stdout] 72 | |                 setz $0
[INFO] [stdout] 73 | |             "
[INFO] [stdout] ...  |
[INFO] [stdout] 76 | |              : "memory" "cc"
[INFO] [stdout] 77 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::heap`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/atomic-stamped-ptr-0.1.1/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | use alloc::heap::{allocate, deallocate};
[INFO] [stdout]    |            ^^^^ could not find `heap` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atomic-stamped-ptr`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "b2e236c9328e8641e75e4a84dc3f4ba721803492f47430bb251f0d07a15a3231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e236c9328e8641e75e4a84dc3f4ba721803492f47430bb251f0d07a15a3231", kill_on_drop: false }`
[INFO] [stdout] b2e236c9328e8641e75e4a84dc3f4ba721803492f47430bb251f0d07a15a3231