[INFO] crate snowflake 1.3.0 is already in cache
[INFO] extracting crate snowflake 1.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake/1.3.0
[INFO] extracting crate snowflake 1.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake/1.3.0
[INFO] validating manifest of snowflake-1.3.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of snowflake-1.3.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing snowflake-1.3.0
[INFO] finished frobbing snowflake-1.3.0
[INFO] frobbed toml for snowflake-1.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/snowflake/1.3.0/Cargo.toml
[INFO] started frobbing snowflake-1.3.0
[INFO] finished frobbing snowflake-1.3.0
[INFO] frobbed toml for snowflake-1.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake/1.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing snowflake-1.3.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake/1.3.0:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 458cb71f42c603c7d0c1675c96a94a634daefdaecfd97be399c1d64738a3f9f5
[INFO] running `"docker" "start" "-a" "458cb71f42c603c7d0c1675c96a94a634daefdaecfd97be399c1d64738a3f9f5"`
[INFO] [stderr]    Compiling snowflake v1.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/process_unique_id.rs:10:38
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/process_unique_id.rs:15:38
[INFO] [stderr]    |
[INFO] [stderr] 15 | static GLOBAL_COUNTER: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "458cb71f42c603c7d0c1675c96a94a634daefdaecfd97be399c1d64738a3f9f5"`
[INFO] running `"docker" "rm" "-f" "458cb71f42c603c7d0c1675c96a94a634daefdaecfd97be399c1d64738a3f9f5"`
[INFO] [stdout] 458cb71f42c603c7d0c1675c96a94a634daefdaecfd97be399c1d64738a3f9f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/snowflake/1.3.0:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b480246dab3b00aea276b75216ba6978e9c1b234ee4135631bb8c520faf5663d
[INFO] running `"docker" "start" "-a" "b480246dab3b00aea276b75216ba6978e9c1b234ee4135631bb8c520faf5663d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling snowflake v1.3.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/process_unique_id.rs:10:38
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/process_unique_id.rs:15:38
[INFO] [stderr]    |
[INFO] [stderr] 15 | static GLOBAL_COUNTER: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicUsize::new(0)`
[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 `snowflake`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b480246dab3b00aea276b75216ba6978e9c1b234ee4135631bb8c520faf5663d"`
[INFO] running `"docker" "rm" "-f" "b480246dab3b00aea276b75216ba6978e9c1b234ee4135631bb8c520faf5663d"`
[INFO] [stdout] b480246dab3b00aea276b75216ba6978e9c1b234ee4135631bb8c520faf5663d