[INFO] crate hdrhistogram 6.2.0 is already in cache
[INFO] extracting crate hdrhistogram 6.2.0 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/hdrhistogram/6.2.0
[INFO] extracting crate hdrhistogram 6.2.0 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/hdrhistogram/6.2.0
[INFO] validating manifest of hdrhistogram-6.2.0 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hdrhistogram-6.2.0 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hdrhistogram-6.2.0
[INFO] removed 1 missing examples
[INFO] finished frobbing hdrhistogram-6.2.0
[INFO] frobbed toml for hdrhistogram-6.2.0 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/hdrhistogram/6.2.0/Cargo.toml
[INFO] started frobbing hdrhistogram-6.2.0
[INFO] removed 1 missing examples
[INFO] finished frobbing hdrhistogram-6.2.0
[INFO] frobbed toml for hdrhistogram-6.2.0 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/hdrhistogram/6.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hdrhistogram-6.2.0 against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-4/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/hdrhistogram/6.2.0:/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=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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b4f2fbe726f1afb2363df08537ce137ed02e86b0f6ecbbfb2ca89a00e8951490
[INFO] running `"docker" "start" "-a" "b4f2fbe726f1afb2363df08537ce137ed02e86b0f6ecbbfb2ca89a00e8951490"`
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking hdrhistogram v6.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `self::test`
[INFO] [stderr]  --> benches/record.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use self::test::Bencher;
[INFO] [stderr]   |           ^^^^ maybe a missing `extern crate test;`?
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `hdrhistogram`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `self::rand`
[INFO] [stderr]  --> benches/serialization.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use self::rand::FromEntropy;
[INFO] [stderr]   |           ^^^^
[INFO] [stderr]   |           |
[INFO] [stderr]   |           unresolved import
[INFO] [stderr]   |           help: a similar path exists: `rug::rand`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::test`
[INFO] [stderr]  --> benches/serialization.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | use self::test::Bencher;
[INFO] [stderr]   |           ^^^^ maybe a missing `extern crate test;`?
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_entropy` found for type `rand::rngs::small::SmallRng` in the current scope
[INFO] [stderr]    --> benches/serialization.rs:176:41
[INFO] [stderr]     |
[INFO] [stderr] 176 |     let mut rng = rand::rngs::SmallRng::from_entropy();
[INFO] [stderr]     |                                         ^^^^^^^^^^^^ function or associated item not found in `rand::rngs::small::SmallRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]     |
[INFO] [stderr] 3   | use rand::FromEntropy;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_entropy` found for type `rand::rngs::small::SmallRng` in the current scope
[INFO] [stderr]    --> benches/serialization.rs:205:41
[INFO] [stderr]     |
[INFO] [stderr] 205 |     let mut rng = rand::rngs::SmallRng::from_entropy();
[INFO] [stderr]     |                                         ^^^^^^^^^^^^ function or associated item not found in `rand::rngs::small::SmallRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]     |
[INFO] [stderr] 3   | use rand::FromEntropy;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `hdrhistogram`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0432]: unresolved import `test`
[INFO] [stderr]  --> benches/interval_log.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use test::Bencher;
[INFO] [stderr]   |     ^^^^ help: a similar path exists: `test::test`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `hdrhistogram`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b4f2fbe726f1afb2363df08537ce137ed02e86b0f6ecbbfb2ca89a00e8951490"`
[INFO] running `"docker" "rm" "-f" "b4f2fbe726f1afb2363df08537ce137ed02e86b0f6ecbbfb2ca89a00e8951490"`
[INFO] [stdout] b4f2fbe726f1afb2363df08537ce137ed02e86b0f6ecbbfb2ca89a00e8951490