[INFO] crate buildchain 0.4.10 is already in cache
[INFO] testing buildchain-0.4.10 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate buildchain 0.4.10 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate buildchain 0.4.10 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buildchain 0.4.10
[INFO] finished tweaking crates.io crate buildchain 0.4.10
[INFO] tweaked toml for crates.io crate buildchain 0.4.10 written to work/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate buildchain 0.4.10 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 0b478a31498917d64e02567a44b423f196db497dffc0307a976ef120fc108b36
[INFO] running `"docker" "start" "-a" "0b478a31498917d64e02567a44b423f196db497dffc0307a976ef120fc108b36"`
[INFO] [stderr]    Compiling index-fixed v0.3.0
[INFO] [stderr]    Compiling lxd v0.1.8
[INFO] [stderr]    Compiling sodalite v0.3.0
[INFO] [stderr]    Compiling buildchain v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `digest`
[INFO] [stderr]    --> src/download.rs:122:20
[INFO] [stderr]     |
[INFO] [stderr] 122 |         for (file, digest) in manifest.files.iter() {
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_digest`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `signature`
[INFO] [stderr]  --> src/block.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     signature: [u8; 64],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `public_key`
[INFO] [stderr]   --> src/block.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     public_key: [u8; 32],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `previous_signature`
[INFO] [stderr]   --> src/block.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     previous_signature: [u8; 64],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `counter`
[INFO] [stderr]   --> src/block.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     counter: [u8; 8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `timestamp`
[INFO] [stderr]   --> src/block.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     timestamp: [u8; 8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/store.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         create_dir_if_needed(&pb);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/store.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |         create_dir_if_needed(&pb);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.96s
[INFO] running `"docker" "inspect" "0b478a31498917d64e02567a44b423f196db497dffc0307a976ef120fc108b36"`
[INFO] running `"docker" "rm" "-f" "0b478a31498917d64e02567a44b423f196db497dffc0307a976ef120fc108b36"`
[INFO] [stdout] 0b478a31498917d64e02567a44b423f196db497dffc0307a976ef120fc108b36
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 63433dba7daccb1991379e5c6ff7437125e94894156427267f8931a12dbae5fa
[INFO] running `"docker" "start" "-a" "63433dba7daccb1991379e5c6ff7437125e94894156427267f8931a12dbae5fa"`
[INFO] [stderr]    Compiling buildchain v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]    --> src/store.rs:254:16
[INFO] [stderr]     |
[INFO] [stderr] 254 |     use rand::{Rng, OsRng};
[INFO] [stderr]     |                ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::OsRng': import with rand::rngs::OsRng instead
[INFO] [stderr]    --> src/store.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     use rand::{Rng, OsRng};
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::OsRng': import with rand::rngs::OsRng instead
[INFO] [stderr]    --> src/store.rs:317:27
[INFO] [stderr]     |
[INFO] [stderr] 317 |             let mut rng = OsRng::new().unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::OsRng': import with rand::rngs::OsRng instead
[INFO] [stderr]    --> src/store.rs:361:27
[INFO] [stderr]     |
[INFO] [stderr] 361 |             let mut rng = OsRng::new().unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::OsRng': import with rand::rngs::OsRng instead
[INFO] [stderr]    --> src/store.rs:395:27
[INFO] [stderr]     |
[INFO] [stderr] 395 |             let mut rng = OsRng::new().unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'rand::OsRng': import with rand::rngs::OsRng instead
[INFO] [stderr]    --> src/store.rs:431:27
[INFO] [stderr]     |
[INFO] [stderr] 431 |             let mut rng = OsRng::new().unwrap();
[INFO] [stderr]     |                           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:318:17
[INFO] [stderr]     |
[INFO] [stderr] 318 |             rng.fill_bytes(&mut content);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:362:17
[INFO] [stderr]     |
[INFO] [stderr] 362 |             rng.fill_bytes(&mut content);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:396:17
[INFO] [stderr]     |
[INFO] [stderr] 396 |             rng.fill_bytes(&mut block);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:432:17
[INFO] [stderr]     |
[INFO] [stderr] 432 |             rng.fill_bytes(&mut block);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `buildchain`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "63433dba7daccb1991379e5c6ff7437125e94894156427267f8931a12dbae5fa"`
[INFO] running `"docker" "rm" "-f" "63433dba7daccb1991379e5c6ff7437125e94894156427267f8931a12dbae5fa"`
[INFO] [stdout] 63433dba7daccb1991379e5c6ff7437125e94894156427267f8931a12dbae5fa