[INFO] cloning repository https://github.com/mthvedt/hitchhiker-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mthvedt/hitchhiker-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthvedt%2Fhitchhiker-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthvedt%2Fhitchhiker-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5922b3e860dd7207b23f9db523c38388a9ce624b
[INFO] testing mthvedt/hitchhiker-rust against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmthvedt%2Fhitchhiker-rust" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mthvedt/hitchhiker-rust on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mthvedt/hitchhiker-rust
[INFO] finished tweaking git repo https://github.com/mthvedt/hitchhiker-rust
[INFO] tweaked toml for git repo https://github.com/mthvedt/hitchhiker-rust written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/mthvedt/hitchhiker-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c977594fa7fdc07c4f3b81a8cf5cc3cde1ccf1407556a4f1ab27ba682fff55f5
[INFO] running `Command { std: "docker" "start" "-a" "c977594fa7fdc07c4f3b81a8cf5cc3cde1ccf1407556a4f1ab27ba682fff55f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c977594fa7fdc07c4f3b81a8cf5cc3cde1ccf1407556a4f1ab27ba682fff55f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c977594fa7fdc07c4f3b81a8cf5cc3cde1ccf1407556a4f1ab27ba682fff55f5", kill_on_drop: false }`
[INFO] [stdout] c977594fa7fdc07c4f3b81a8cf5cc3cde1ccf1407556a4f1ab27ba682fff55f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60a3a0bbf6fcdf396b0ce5495f4fb168c69d05a2e3a00a6e104cca315dc04c22
[INFO] running `Command { std: "docker" "start" "-a" "60a3a0bbf6fcdf396b0ce5495f4fb168c69d05a2e3a00a6e104cca315dc04c22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling byteorder v0.3.13
[INFO] [stderr]    Compiling typed-arena v1.2.0
[INFO] [stderr]    Compiling futures v0.1.11
[INFO] [stderr]    Compiling bytebuffer v0.2.1
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling htree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(conservative_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(log_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(trace_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(test)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bench/mod.rs:216:44
[INFO] [stdout]     |
[INFO] [stdout] 216 | pub fn run_benchmark<W: Write>(benchmark: &Benchable, out: &mut W) {
[INFO] [stdout]     |                                            ^^^^^^^^^ help: use `dyn`: `dyn Benchable`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/bench/mod.rs:240:54
[INFO] [stdout]     |
[INFO] [stdout] 240 | pub fn run_benchmarks<W: Write>(benchmarks: &Vec<Box<Benchable>>, out: &mut W) {
[INFO] [stdout]     |                                                      ^^^^^^^^^ help: use `dyn`: `dyn Benchable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/tdfuture/future.rs:199:32
[INFO] [stdout]     |
[INFO] [stdout] 199 | pub type BoxFuture<T, E> = Box<Future<Item = T, Error = E>>;
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = T, Error = E>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::marker::PhantomData`
[INFO] [stdout]  --> src/traits.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::marker::PhantomData;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/tree/btree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `data::*`
[INFO] [stdout]    --> src/tree/btree.rs:209:6
[INFO] [stdout]     |
[INFO] [stdout] 209 |     use data::*;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/tdfuture/future.rs:187:37
[INFO] [stdout]     |
[INFO] [stdout] 187 |         let mut self_tmp = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/data/util.rs:13:38
[INFO] [stdout]     |
[INFO] [stdout] 13  |             let mut items: [_; $n] = mem::uninitialized();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/tree/memnode.rs:107:26
[INFO] [stdout]     |
[INFO] [stdout] 107 |                 buckets: make_array!(|_| MemPtr::empty(), (NODE_CAPACITY - 1) as usize),
[INFO] [stdout]     |                          -------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `make_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/data/util.rs:13:38
[INFO] [stdout]     |
[INFO] [stdout] 13  |             let mut items: [_; $n] = mem::uninitialized();
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/tree/memnode.rs:108:30
[INFO] [stdout]     |
[INFO] [stdout] 108 |                    children: make_array!(|_| MemPtr::empty(), NODE_CAPACITY as usize),
[INFO] [stdout]     |                              -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `make_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/tree/noderef.rs:171:36
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let mut oldself = unsafe { mem::uninitialized() };
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/tree/util.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut dummy: [T; 1] = unsafe { mem::uninitialized() };
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0195]: lifetime parameters or bounds on method `subrange` do not match the trait declaration
[INFO] [stdout]    --> src/tree/btree.rs:540:16
[INFO] [stdout]     |
[INFO] [stdout] 540 |     fn subrange<'b, K1: AsRef<[u8]>, K2: AsRef<[u8]>>(&self, start: K1, end: K2) -> PersistentBTree {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetimes do not match method in trait
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/traits.rs:118:16
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn subrange<'b, K1: AsRef<[u8]>, K2: AsRef<[u8]>>(&self, start: K1, end: K2) -> <Spec as TreeSpec<'b>>::SubrangeImpl;
[INFO] [stdout]     |                -------------------------------------- lifetimes in impl do not match this method in trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0195, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0195`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `htree`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "60a3a0bbf6fcdf396b0ce5495f4fb168c69d05a2e3a00a6e104cca315dc04c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a3a0bbf6fcdf396b0ce5495f4fb168c69d05a2e3a00a6e104cca315dc04c22", kill_on_drop: false }`
[INFO] [stdout] 60a3a0bbf6fcdf396b0ce5495f4fb168c69d05a2e3a00a6e104cca315dc04c22
