[INFO] fetching crate tralloc 0.1.1...
[INFO] checking tralloc-0.1.1 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate tralloc 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate tralloc 0.1.1 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tralloc 0.1.1
[INFO] finished tweaking crates.io crate tralloc 0.1.1
[INFO] tweaked toml for crates.io crate tralloc 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate tralloc 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "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] da9dda0bdda7da95e6ef443cce4a4f8c871d56b2816303b0e8b4d99f0a3efb89
[INFO] running `Command { std: "docker" "start" "-a" "da9dda0bdda7da95e6ef443cce4a4f8c871d56b2816303b0e8b4d99f0a3efb89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da9dda0bdda7da95e6ef443cce4a4f8c871d56b2816303b0e8b4d99f0a3efb89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da9dda0bdda7da95e6ef443cce4a4f8c871d56b2816303b0e8b4d99f0a3efb89", kill_on_drop: false }`
[INFO] [stdout] da9dda0bdda7da95e6ef443cce4a4f8c871d56b2816303b0e8b4d99f0a3efb89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7125865d37f6843a7971ae607335c87a5aa9876a253661bf646ecdf22cbe92be
[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" "7125865d37f6843a7971ae607335c87a5aa9876a253661bf646ecdf22cbe92be", kill_on_drop: false }`
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking tralloc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::alloc::Alloc`
[INFO] [stdout]  --> src/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::alloc::{Alloc, AllocErr, GlobalAlloc, Layout, System};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  no `Alloc` in `alloc`
[INFO] [stdout]   |                  help: a similar name exists in the module: `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `null_mut`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ptr::{null_mut, NonNull};
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tralloc`
[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] [stdout] error[E0432]: unresolved import `std::alloc::Alloc`
[INFO] [stdout]  --> src/lib.rs:7:18
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::alloc::{Alloc, AllocErr, GlobalAlloc, Layout, System};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |                  |
[INFO] [stdout]   |                  no `Alloc` in `alloc`
[INFO] [stdout]   |                  help: a similar name exists in the module: `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `null_mut`
[INFO] [stdout]   --> src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::ptr::{null_mut, NonNull};
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7125865d37f6843a7971ae607335c87a5aa9876a253661bf646ecdf22cbe92be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7125865d37f6843a7971ae607335c87a5aa9876a253661bf646ecdf22cbe92be", kill_on_drop: false }`
[INFO] [stdout] 7125865d37f6843a7971ae607335c87a5aa9876a253661bf646ecdf22cbe92be