[INFO] fetching crate lamellar 0.3.0...
[INFO] checking lamellar-0.3.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate lamellar 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate lamellar 0.3.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lamellar 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate lamellar 0.3.0
[INFO] tweaked toml for crates.io crate lamellar 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate lamellar 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded twox-hash v1.6.0
[INFO] [stderr]   Downloaded quick-error v2.0.1
[INFO] [stderr]   Downloaded nix v0.15.0
[INFO] [stderr]   Downloaded rofisys v0.1.1
[INFO] [stderr]   Downloaded shared_memory v0.11.4
[INFO] [stderr]   Downloaded lamellar-prof v0.1.0
[INFO] [stderr]   Downloaded chashmap v2.2.2
[INFO] [stderr]   Downloaded lamellar-impl v0.3.0
[INFO] [stderr]   Downloaded addr2line v0.15.1
[INFO] [stderr]   Downloaded raw_sync v0.1.5
[INFO] [stderr]   Downloaded build_id v0.1.5
[INFO] [stderr]   Downloaded relative v0.1.5
[INFO] [stderr]   Downloaded palaver v0.2.8
[INFO] [stderr]   Downloaded serde_closure v0.1.5
[INFO] [stderr]   Downloaded subprocess v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cd3a78eeb9d010464dd8f6880e58b2c996e6a59b8950ab44987de98c251fdaa
[INFO] running `Command { std: "docker" "start" "-a" "8cd3a78eeb9d010464dd8f6880e58b2c996e6a59b8950ab44987de98c251fdaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cd3a78eeb9d010464dd8f6880e58b2c996e6a59b8950ab44987de98c251fdaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd3a78eeb9d010464dd8f6880e58b2c996e6a59b8950ab44987de98c251fdaa", kill_on_drop: false }`
[INFO] [stdout] 8cd3a78eeb9d010464dd8f6880e58b2c996e6a59b8950ab44987de98c251fdaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2978a2c4ec52793959c1b777b40ede6836f7da97d97962cf8473453f667dc886
[INFO] running `Command { std: "docker" "start" "-a" "2978a2c4ec52793959c1b777b40ede6836f7da97d97962cf8473453f667dc886", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling lamellar-prof v0.1.0
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking simple_logger v1.11.0
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[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]    Compiling lamellar-impl v0.3.0
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking lamellar v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lamellar_alloc.rs:410:17
[INFO] [stdout]     |
[INFO] [stdout] 410 |             let mut alloc_clone = alloc.clone();
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.41s
[INFO] running `Command { std: "docker" "inspect" "2978a2c4ec52793959c1b777b40ede6836f7da97d97962cf8473453f667dc886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2978a2c4ec52793959c1b777b40ede6836f7da97d97962cf8473453f667dc886", kill_on_drop: false }`
[INFO] [stdout] 2978a2c4ec52793959c1b777b40ede6836f7da97d97962cf8473453f667dc886