[INFO] fetching crate owasm-alloc 0.4.0...
[INFO] testing owasm-alloc-0.4.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate owasm-alloc 0.4.0 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate owasm-alloc 0.4.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate owasm-alloc 0.4.0
[INFO] finished tweaking crates.io crate owasm-alloc 0.4.0
[INFO] tweaked toml for crates.io crate owasm-alloc 0.4.0 written to /workspace/builds/worker-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80d3e18ed9dcb871d20d9977323a137e99f41f9cf3d35d9450d29e1fbe447902
[INFO] running `Command { std: "docker" "start" "-a" "80d3e18ed9dcb871d20d9977323a137e99f41f9cf3d35d9450d29e1fbe447902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80d3e18ed9dcb871d20d9977323a137e99f41f9cf3d35d9450d29e1fbe447902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80d3e18ed9dcb871d20d9977323a137e99f41f9cf3d35d9450d29e1fbe447902", kill_on_drop: false }`
[INFO] [stdout] 80d3e18ed9dcb871d20d9977323a137e99f41f9cf3d35d9450d29e1fbe447902
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61b8ba0c79bf8b4e242c6f0b8809c8a1aff1d841df12e696ebffbea85125dfb8
[INFO] running `Command { std: "docker" "start" "-a" "61b8ba0c79bf8b4e242c6f0b8809c8a1aff1d841df12e696ebffbea85125dfb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling owasm-alloc v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `alloc`
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(alloc)]
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `owasm-alloc` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "61b8ba0c79bf8b4e242c6f0b8809c8a1aff1d841df12e696ebffbea85125dfb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61b8ba0c79bf8b4e242c6f0b8809c8a1aff1d841df12e696ebffbea85125dfb8", kill_on_drop: false }`
[INFO] [stdout] 61b8ba0c79bf8b4e242c6f0b8809c8a1aff1d841df12e696ebffbea85125dfb8