[INFO] fetching crate bitcask-rs 0.1.1...
[INFO] testing bitcask-rs-0.1.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate bitcask-rs 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bitcask-rs 0.1.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcask-rs 0.1.1
[INFO] finished tweaking crates.io crate bitcask-rs 0.1.1
[INFO] tweaked toml for crates.io crate bitcask-rs 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded integer-encoding v1.1.7
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded serde-value v0.5.3
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded uuid v0.6.5
[INFO] [stderr]   Downloaded arc-swap v0.3.11
[INFO] [stderr]   Downloaded log-mdc v0.1.0
[INFO] [stderr]   Downloaded antidote v1.0.0
[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded derive_builder_core v0.2.0
[INFO] [stderr]   Downloaded io-at v0.4.1
[INFO] [stderr]   Downloaded derive_builder v0.5.1
[INFO] [stderr]   Downloaded log4rs v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c035847d0c9591fe83b5e18e2b0821f32de990414dc28abe999089af60f7974
[INFO] running `Command { std: "docker" "start" "-a" "7c035847d0c9591fe83b5e18e2b0821f32de990414dc28abe999089af60f7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c035847d0c9591fe83b5e18e2b0821f32de990414dc28abe999089af60f7974", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c035847d0c9591fe83b5e18e2b0821f32de990414dc28abe999089af60f7974", kill_on_drop: false }`
[INFO] [stdout] 7c035847d0c9591fe83b5e18e2b0821f32de990414dc28abe999089af60f7974
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 173416643f297d2b7fd622390f34ba989162c21ebb0e9260e568415cc040c660
[INFO] running `Command { std: "docker" "start" "-a" "173416643f297d2b7fd622390f34ba989162c21ebb0e9260e568415cc040c660", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.75
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.111
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.59
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling flate2 v1.0.28
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling log-mdc v0.1.0
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling antidote v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling io-at v0.4.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling integer-encoding v1.1.7
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling serde_yaml v0.8.26
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling serde-value v0.5.3
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling log4rs v0.8.3
[INFO] [stderr]    Compiling bitcask-rs v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `nll` has been stable since `1.63.0` 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 | static INIT: Once = ONCE_INIT;
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 36 | static INIT: Once = Once::new();
[INFO] [stdout]    |                     ~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `nll` has been stable since 1.63.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/keys_iterator.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 |     iter: Box<Iterator<Item = &'a Key> + 'a>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 |     iter: Box<dyn Iterator<Item = &'a Key> + 'a>,
[INFO] [stdout]    |               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/keys_iterator.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(iter: Box<Iterator<Item = &'a Key> + 'a>) -> StoreKeysIter<'a> {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn new(iter: Box<dyn Iterator<Item = &'a Key> + 'a>) -> StoreKeysIter<'a> {
[INFO] [stdout]    |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/store.rs:123:38
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn keys<'a>(&'a self) -> Box<Iterator<Item = &'a Key> + 'a> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn keys<'a>(&'a self) -> Box<dyn Iterator<Item = &'a Key> + 'a> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/store.rs:170:38
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn keys<'a>(&'a self) -> Box<Iterator<Item = &'a Key> + 'a> {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[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] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn keys<'a>(&'a self) -> Box<dyn Iterator<Item = &'a Key> + 'a> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bitcask-rs` (lib) due to 4 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "173416643f297d2b7fd622390f34ba989162c21ebb0e9260e568415cc040c660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "173416643f297d2b7fd622390f34ba989162c21ebb0e9260e568415cc040c660", kill_on_drop: false }`
[INFO] [stdout] 173416643f297d2b7fd622390f34ba989162c21ebb0e9260e568415cc040c660
