[INFO] fetching crate mtbl 0.2.1...
[INFO] extracting crate mtbl 0.2.1 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/mtbl/0.2.1
[INFO] extracting crate mtbl 0.2.1 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mtbl/0.2.1
[INFO] validating manifest of mtbl-0.2.1 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mtbl-0.2.1 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mtbl-0.2.1
[INFO] finished frobbing mtbl-0.2.1
[INFO] frobbed toml for mtbl-0.2.1 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/mtbl/0.2.1/Cargo.toml
[INFO] started frobbing mtbl-0.2.1
[INFO] finished frobbing mtbl-0.2.1
[INFO] frobbed toml for mtbl-0.2.1 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mtbl/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mtbl-sys v0.2.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking mtbl-0.2.1 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/mtbl/0.2.1:/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=forbid" "-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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6959673d97c5cfa27bb1dfd55fbe5f7db7254bb2472eae07f4d2733802791987
[INFO] running `"docker" "start" "-a" "6959673d97c5cfa27bb1dfd55fbe5f7db7254bb2472eae07f4d2733802791987"`
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking mtbl-sys v0.2.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking mtbl v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:95:31
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/writer.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |     _file: Box<AsRawFd>,
[INFO] [stderr]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stderr] 
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling lz4 v1.23.1
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:15:20
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub type MergeFn = Fn(&[u8], &[u8], &[u8]) -> Vec<u8>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8], &[u8], &[u8]) -> Vec<u8>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/merger.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |     _sources: Vec<Box<Read>>,
[INFO] [stderr]    |                       ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/reader.rs:95:31
[INFO] [stderr]    |
[INFO] [stderr] 95 | impl<'a> IntoIterator for &'a Read {
[INFO] [stderr]    |                               ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/reader.rs:411:35
[INFO] [stderr]     |
[INFO] [stderr] 411 |         for (k, v) in &reader as &Read {
[INFO] [stderr]     |                                   ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/writer.rs:120:16
[INFO] [stderr]     |
[INFO] [stderr] 120 |     _file: Box<AsRawFd>,
[INFO] [stderr]     |                ^^^^^^^ help: use `dyn`: `dyn AsRawFd`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]  --> benches/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | extern crate test;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]   = help: add #![feature(test)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]  --> benches/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]   = help: add #![feature(test)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]   --> benches/lib.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn bench_get(bench: &mut Bencher) {
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(test)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'test'
[INFO] [stderr]   --> benches/lib.rs:25:11
[INFO] [stderr]    |
[INFO] [stderr] 25 |     bench.iter(|| reader.get(format!("{:09}", range_gen.ind_sample(&mut rng))));
[INFO] [stderr]    |           ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr]    = help: add #![feature(test)] to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `mtbl`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6959673d97c5cfa27bb1dfd55fbe5f7db7254bb2472eae07f4d2733802791987"`
[INFO] running `"docker" "rm" "-f" "6959673d97c5cfa27bb1dfd55fbe5f7db7254bb2472eae07f4d2733802791987"`
[INFO] [stdout] 6959673d97c5cfa27bb1dfd55fbe5f7db7254bb2472eae07f4d2733802791987