[INFO] fetching crate exar-testkit 0.1.0...
[INFO] building exar-testkit-0.1.0 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate exar-testkit 0.1.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate exar-testkit 0.1.0 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exar-testkit 0.1.0
[INFO] finished tweaking crates.io crate exar-testkit 0.1.0
[INFO] tweaked toml for crates.io crate exar-testkit 0.1.0 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b23df40fa73d92dffb4c37a9579003acdfe54c5ee459a6959e6722174129113
[INFO] running `Command { std: "docker" "start" "-a" "1b23df40fa73d92dffb4c37a9579003acdfe54c5ee459a6959e6722174129113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b23df40fa73d92dffb4c37a9579003acdfe54c5ee459a6959e6722174129113", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b23df40fa73d92dffb4c37a9579003acdfe54c5ee459a6959e6722174129113", kill_on_drop: false }`
[INFO] [stdout] 1b23df40fa73d92dffb4c37a9579003acdfe54c5ee459a6959e6722174129113
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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 -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 998f29681e0796d29487e52d020e1a641b2c689604cb7af69f34fe86211d7f37
[INFO] running `Command { std: "docker" "start" "-a" "998f29681e0796d29487e52d020e1a641b2c689604cb7af69f34fe86211d7f37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (75b84863966839e5, 8a92c743b00988cf), 0, 0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d5015a8c02ff7118, e70836707da39dad), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (c33e8228ef4d3b95, 2d6ca4bd92c47071), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (73a6793981df500, 9ea7a0df690467a7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (d8ff2f552621b1e1, a17a7748711039ba), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (4d455adf532d9672, 8a28634982653bd8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (ed75b5e2f3665aa2, 4385f707973d3e6f), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (b6582aa9c9db04c2, 7aa5d671fc00c41d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (6a201950bd958b83, 83144e08ef857ffe), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4edb901cfa4bf68, aebc79b4281ce138), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (f4cc936fabde326d, 2e5a3fa686e06f95), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (430a73cb6571950c, 8fca9879845359c1), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (33973f3323b2d6c4, 61730fb1bf00dec8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (244767cfee9aefe0, 1ac66c687f40fdbf), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: rand, (893aa53486a55c7, dfa264df2657b3a9), 0, 0
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling exar-testkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(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] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/net.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn with_addr(f: &mut FnMut(SocketAddr)) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(SocketAddr)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exar-testkit` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "998f29681e0796d29487e52d020e1a641b2c689604cb7af69f34fe86211d7f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998f29681e0796d29487e52d020e1a641b2c689604cb7af69f34fe86211d7f37", kill_on_drop: false }`
[INFO] [stdout] 998f29681e0796d29487e52d020e1a641b2c689604cb7af69f34fe86211d7f37