[INFO] fetching crate heph 0.3.0...
[INFO] testing heph-0.3.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate heph 0.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate heph 0.3.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate heph 0.3.0
[INFO] finished tweaking crates.io crate heph 0.3.0
[INFO] tweaked toml for crates.io crate heph 0.3.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate heph 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio-signals v0.1.4
[INFO] [stderr]   Downloaded heph-inbox v0.1.0
[INFO] [stderr]   Downloaded std-logger v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36dce9b297600c999a66ddeb32e7fea2fdf1a7b1bfa3762c78dc1fc8b78491cc
[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" "36dce9b297600c999a66ddeb32e7fea2fdf1a7b1bfa3762c78dc1fc8b78491cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36dce9b297600c999a66ddeb32e7fea2fdf1a7b1bfa3762c78dc1fc8b78491cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36dce9b297600c999a66ddeb32e7fea2fdf1a7b1bfa3762c78dc1fc8b78491cc", kill_on_drop: false }`
[INFO] [stdout] 36dce9b297600c999a66ddeb32e7fea2fdf1a7b1bfa3762c78dc1fc8b78491cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e466e5718c6f23a0d5b8277745ba136def3615a02e4b05c473fedf8d86b61314
[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" "e466e5718c6f23a0d5b8277745ba136def3615a02e4b05c473fedf8d86b61314", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling sval v1.0.0-alpha.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling heph-inbox v0.1.0
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]    Compiling mio v0.7.9
[INFO] [stderr]    Compiling mio-signals v0.1.4
[INFO] [stderr]    Compiling heph v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     const_fn,
[INFO] [stdout]    |     ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     const_raw_ptr_to_usize_cast,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: at compile-time, pointers do not have an integer value, so these casts cannot be properly supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/net/tcp/stream.rs:710:50
[INFO] [stdout]     |
[INFO] [stdout] 710 |                     let mut b = IoSlice::advance(b, n);
[INFO] [stdout]     |                                                  ^ expected struct `IoSlice`, found slice
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut IoSlice<'_>`
[INFO] [stdout]                found mutable reference `&mut [IoSlice<'_>]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/net/tcp/stream.rs:711:32
[INFO] [stdout]     |
[INFO] [stdout] 711 |                     swap(bufs, &mut b);
[INFO] [stdout]     |                                ^^^^^^ expected mutable reference, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut &mut [IoSlice<'_>]`
[INFO] [stdout]                found mutable reference `&mut ()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `heph`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e466e5718c6f23a0d5b8277745ba136def3615a02e4b05c473fedf8d86b61314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e466e5718c6f23a0d5b8277745ba136def3615a02e4b05c473fedf8d86b61314", kill_on_drop: false }`
[INFO] [stdout] e466e5718c6f23a0d5b8277745ba136def3615a02e4b05c473fedf8d86b61314