[INFO] fetching crate two-sided-vec 0.1.10...
[INFO] checking two-sided-vec-0.1.10 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate two-sided-vec 0.1.10 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate two-sided-vec 0.1.10 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate two-sided-vec 0.1.10
[INFO] finished tweaking crates.io crate two-sided-vec 0.1.10
[INFO] tweaked toml for crates.io crate two-sided-vec 0.1.10 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] c6486c6ec9133d59ee6abd35f1844536b15030d9e03119bf88edf1ed17b596f2
[INFO] running `Command { std: "docker" "start" "-a" "c6486c6ec9133d59ee6abd35f1844536b15030d9e03119bf88edf1ed17b596f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6486c6ec9133d59ee6abd35f1844536b15030d9e03119bf88edf1ed17b596f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6486c6ec9133d59ee6abd35f1844536b15030d9e03119bf88edf1ed17b596f2", kill_on_drop: false }`
[INFO] [stdout] c6486c6ec9133d59ee6abd35f1844536b15030d9e03119bf88edf1ed17b596f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45a1b3b1fce1723b15fcbf97556977cd430e0e8094cc6046f487771cf231bed6
[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" "45a1b3b1fce1723b15fcbf97556977cd430e0e8094cc6046f487771cf231bed6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]     Checking two-sided-vec v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::alloc::AllocRef`
[INFO] [stdout]  --> src/raw.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::alloc::{handle_alloc_error, AllocRef, Global, Layout};
[INFO] [stdout]   |                                      ^^^^^^^^ no `AllocRef` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `alloc` found for struct `std::alloc::Global` in the current scope
[INFO] [stdout]   --> src/raw.rs:31:31
[INFO] [stdout]    |
[INFO] [stdout] 31 |             let memory = heap.alloc(layout)
[INFO] [stdout]    |                               ^^^^^ method not found in `std::alloc::Global`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `dealloc` found for struct `std::alloc::Global` in the current scope
[INFO] [stdout]   --> src/raw.rs:90:22
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 heap.dealloc(
[INFO] [stdout]    |                      ^^^^^^^ method not found in `std::alloc::Global`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `two-sided-vec`
[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" "45a1b3b1fce1723b15fcbf97556977cd430e0e8094cc6046f487771cf231bed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45a1b3b1fce1723b15fcbf97556977cd430e0e8094cc6046f487771cf231bed6", kill_on_drop: false }`
[INFO] [stdout] 45a1b3b1fce1723b15fcbf97556977cd430e0e8094cc6046f487771cf231bed6