[INFO] cloning repository https://github.com/xinyu-zheng/umalloc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xinyu-zheng/umalloc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxinyu-zheng%2Fumalloc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxinyu-zheng%2Fumalloc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feeb120703fea7a81fb52c0a92a1d1c68c7b7442
[INFO] checking xinyu-zheng/umalloc against try#310c4dc96b5921ed757c4cd00c4b33924ee903c6 for pr-146972-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxinyu-zheng%2Fumalloc" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/xinyu-zheng/umalloc
[INFO] finished tweaking git repo https://github.com/xinyu-zheng/umalloc
[INFO] tweaked toml for git repo https://github.com/xinyu-zheng/umalloc written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xinyu-zheng/umalloc on toolchain 310c4dc96b5921ed757c4cd00c4b33924ee903c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+310c4dc96b5921ed757c4cd00c4b33924ee903c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xinyu-zheng/umalloc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+310c4dc96b5921ed757c4cd00c4b33924ee903c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: ignoring `public` on dependency libc, pass `-Zpublic-dependency` to enable support for it
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+310c4dc96b5921ed757c4cd00c4b33924ee903c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66ea9805da58e68d0128e20f3750dfc8a23b7c55cd81d1c72c14cdc30f6e7ef2
[INFO] running `Command { std: "docker" "start" "-a" "66ea9805da58e68d0128e20f3750dfc8a23b7c55cd81d1c72c14cdc30f6e7ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66ea9805da58e68d0128e20f3750dfc8a23b7c55cd81d1c72c14cdc30f6e7ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66ea9805da58e68d0128e20f3750dfc8a23b7c55cd81d1c72c14cdc30f6e7ef2", kill_on_drop: false }`
[INFO] [stdout] 66ea9805da58e68d0128e20f3750dfc8a23b7c55cd81d1c72c14cdc30f6e7ef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+310c4dc96b5921ed757c4cd00c4b33924ee903c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1456328997b41ff8a8022a4a85673cc7e444f4f67e82d358878173e115eab8d0
[INFO] running `Command { std: "docker" "start" "-a" "1456328997b41ff8a8022a4a85673cc7e444f4f67e82d358878173e115eab8d0", kill_on_drop: false }`
[INFO] [stderr] warning: ignoring `public` on dependency libc, pass `-Zpublic-dependency` to enable support for it
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking rustc-std-workspace-core v1.0.1
[INFO] [stderr]     Checking umalloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `cmp::self` and `self`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     cmp::self,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 7 |     ptr::{self, NonNull},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp::self` and `self`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     cmp::self,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 7 |     ptr::{self, NonNull},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc_layout_extra` has been stable since 1.95.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(alloc_layout_extra)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc_layout_extra` has been stable since 1.95.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(alloc_layout_extra)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `dangling` found for struct `Layout` in the current scope
[INFO] [stdout]    --> src/lib.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |             0 => Ok(NonNull::slice_from_raw_parts(layout.dangling(), 0)),
[INFO] [stdout]     |                                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `dangling_ptr` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 106 |             0 => Ok(NonNull::slice_from_raw_parts(layout.dangling_ptr(), 0)),
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `dangling` found for struct `Layout` in the current scope
[INFO] [stdout]    --> src/lib.rs:106:58
[INFO] [stdout]     |
[INFO] [stdout] 106 |             0 => Ok(NonNull::slice_from_raw_parts(layout.dangling(), 0)),
[INFO] [stdout]     |                                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `dangling_ptr` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 106 |             0 => Ok(NonNull::slice_from_raw_parts(layout.dangling_ptr(), 0)),
[INFO] [stdout]     |                                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `umalloc` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `umalloc` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1456328997b41ff8a8022a4a85673cc7e444f4f67e82d358878173e115eab8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1456328997b41ff8a8022a4a85673cc7e444f4f67e82d358878173e115eab8d0", kill_on_drop: false }`
[INFO] [stdout] 1456328997b41ff8a8022a4a85673cc7e444f4f67e82d358878173e115eab8d0