[INFO] crate chainbuf 0.0.9 is already in cache
[INFO] extracting crate chainbuf 0.0.9 into work/ex/beta-1.38-1/sources/1.37.0/reg/chainbuf/0.0.9
[INFO] extracting crate chainbuf 0.0.9 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chainbuf/0.0.9
[INFO] validating manifest of chainbuf-0.0.9 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chainbuf-0.0.9 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chainbuf-0.0.9
[INFO] finished frobbing chainbuf-0.0.9
[INFO] frobbed toml for chainbuf-0.0.9 written to work/ex/beta-1.38-1/sources/1.37.0/reg/chainbuf/0.0.9/Cargo.toml
[INFO] started frobbing chainbuf-0.0.9
[INFO] finished frobbing chainbuf-0.0.9
[INFO] frobbed toml for chainbuf-0.0.9 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chainbuf/0.0.9/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing chainbuf-0.0.9 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chainbuf/0.0.9:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c8bd1f5d6cbc3dfaa8728cf417ec727fb66556c7ff467ac29ff91b020b3749b4
[INFO] running `"docker" "start" "-a" "c8bd1f5d6cbc3dfaa8728cf417ec727fb66556c7ff467ac29ff91b020b3749b4"`
[INFO] [stderr]    Compiling chainbuf v0.0.9 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1022:38
[INFO] [stderr]      |
[INFO] [stderr] 1022 |     fn as_immut<'a>(&'a self) -> &'a ImmutableDataHolder;
[INFO] [stderr]      |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:3:9
[INFO] [stderr]      |
[INFO] [stderr] 3    | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1027:16
[INFO] [stderr]      |
[INFO] [stderr] 1027 |     Mutable(Rc<MutableDataHolder + 'src>),
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MutableDataHolder + 'src`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1028:18
[INFO] [stderr]      |
[INFO] [stderr] 1028 |     Immutable(Rc<ImmutableDataHolder + 'src>),
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder + 'src`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1033:45
[INFO] [stderr]      |
[INFO] [stderr] 1033 |     fn holder_mut(&mut self) -> Option<&mut MutableDataHolder> {
[INFO] [stderr]      |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1047:26
[INFO] [stderr]      |
[INFO] [stderr] 1047 |     fn holder(&self) -> &ImmutableDataHolder {
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1120:38
[INFO] [stderr]      |
[INFO] [stderr] 1120 |     fn as_immut<'a>(&'a self) -> &'a ImmutableDataHolder {
[INFO] [stderr]      |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "c8bd1f5d6cbc3dfaa8728cf417ec727fb66556c7ff467ac29ff91b020b3749b4"`
[INFO] running `"docker" "rm" "-f" "c8bd1f5d6cbc3dfaa8728cf417ec727fb66556c7ff467ac29ff91b020b3749b4"`
[INFO] [stdout] c8bd1f5d6cbc3dfaa8728cf417ec727fb66556c7ff467ac29ff91b020b3749b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/chainbuf/0.0.9:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] af90b0070ba66f328b347caa3af4adfee1bba557e9ab0122754e72ad4fd57b32
[INFO] running `"docker" "start" "-a" "af90b0070ba66f328b347caa3af4adfee1bba557e9ab0122754e72ad4fd57b32"`
[INFO] [stderr]    Compiling chainbuf v0.0.9 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1022:38
[INFO] [stderr]      |
[INFO] [stderr] 1022 |     fn as_immut<'a>(&'a self) -> &'a ImmutableDataHolder;
[INFO] [stderr]      |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr]      |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]     --> src/lib.rs:3:9
[INFO] [stderr]      |
[INFO] [stderr] 3    | #![deny(warnings)]
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1027:16
[INFO] [stderr]      |
[INFO] [stderr] 1027 |     Mutable(Rc<MutableDataHolder + 'src>),
[INFO] [stderr]      |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MutableDataHolder + 'src`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1028:18
[INFO] [stderr]      |
[INFO] [stderr] 1028 |     Immutable(Rc<ImmutableDataHolder + 'src>),
[INFO] [stderr]      |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder + 'src`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1033:45
[INFO] [stderr]      |
[INFO] [stderr] 1033 |     fn holder_mut(&mut self) -> Option<&mut MutableDataHolder> {
[INFO] [stderr]      |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn MutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1047:26
[INFO] [stderr]      |
[INFO] [stderr] 1047 |     fn holder(&self) -> &ImmutableDataHolder {
[INFO] [stderr]      |                          ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chainbuf.rs:1120:38
[INFO] [stderr]      |
[INFO] [stderr] 1120 |     fn as_immut<'a>(&'a self) -> &'a ImmutableDataHolder {
[INFO] [stderr]      |                                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ImmutableDataHolder`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> tests/integration.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> tests/unit.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `chainbuf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `chainbuf`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "af90b0070ba66f328b347caa3af4adfee1bba557e9ab0122754e72ad4fd57b32"`
[INFO] running `"docker" "rm" "-f" "af90b0070ba66f328b347caa3af4adfee1bba557e9ab0122754e72ad4fd57b32"`
[INFO] [stdout] af90b0070ba66f328b347caa3af4adfee1bba557e9ab0122754e72ad4fd57b32