[INFO] fetching crate heph 0.3.0...
[INFO] checking heph-0.3.0 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate heph 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate heph 0.3.0 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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-6/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log-panics v2.0.0
[INFO] [stderr]   Downloaded heph-inbox v0.1.0
[INFO] [stderr]   Downloaded mio-signals v0.1.4
[INFO] [stderr]   Downloaded std-logger v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db1ddd1cc1fb459adccafeb26668c48686336cbd93e2cf59f253ca14b71c385d
[INFO] running `Command { std: "docker" "start" "-a" "db1ddd1cc1fb459adccafeb26668c48686336cbd93e2cf59f253ca14b71c385d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db1ddd1cc1fb459adccafeb26668c48686336cbd93e2cf59f253ca14b71c385d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db1ddd1cc1fb459adccafeb26668c48686336cbd93e2cf59f253ca14b71c385d", kill_on_drop: false }`
[INFO] [stdout] db1ddd1cc1fb459adccafeb26668c48686336cbd93e2cf59f253ca14b71c385d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a57029c28b7fc9515c38c5be904fdf9d0691f5607084451ee51fc5d143b224f
[INFO] running `Command { std: "docker" "start" "-a" "6a57029c28b7fc9515c38c5be904fdf9d0691f5607084451ee51fc5d143b224f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking sval v1.0.0-alpha.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking heph-inbox v0.1.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling ctor v0.1.19
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking log-panics v2.0.0
[INFO] [stderr]     Checking std-logger v0.4.0
[INFO] [stderr]     Checking mio-signals v0.1.4
[INFO] [stderr]     Checking 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: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[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[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 3 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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 3 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: build failed
[INFO] running `Command { std: "docker" "inspect" "6a57029c28b7fc9515c38c5be904fdf9d0691f5607084451ee51fc5d143b224f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a57029c28b7fc9515c38c5be904fdf9d0691f5607084451ee51fc5d143b224f", kill_on_drop: false }`
[INFO] [stdout] 6a57029c28b7fc9515c38c5be904fdf9d0691f5607084451ee51fc5d143b224f