[INFO] updating cached repository slacker2/sm-808
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/slacker2/sm-808
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/slacker2/sm-808" "work/ex/beta-1.38-1/sources/1.37.0/gh/slacker2/sm-808"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/slacker2/sm-808'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/slacker2/sm-808" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slacker2/sm-808"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slacker2/sm-808'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 250b8ae0dfefe88bd2dc2dcd2bd3d4ac499bf875
[INFO] sha for GitHub repo slacker2/sm-808: 250b8ae0dfefe88bd2dc2dcd2bd3d4ac499bf875
[INFO] validating manifest of slacker2/sm-808 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 slacker2/sm-808 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 slacker2/sm-808
[INFO] finished frobbing slacker2/sm-808
[INFO] frobbed toml for slacker2/sm-808 written to work/ex/beta-1.38-1/sources/1.37.0/gh/slacker2/sm-808/Cargo.toml
[INFO] started frobbing slacker2/sm-808
[INFO] finished frobbing slacker2/sm-808
[INFO] frobbed toml for slacker2/sm-808 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/slacker2/sm-808/Cargo.toml
[INFO] crate slacker2/sm-808 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/slacker2/sm-808/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing slacker2/sm-808 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/slacker2/sm-808:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c1f144f869dd488093422f2b7078f5123ed0ebb8f0caf77eb0cd10cace4044b3
[INFO] running `"docker" "start" "-a" "c1f144f869dd488093422f2b7078f5123ed0ebb8f0caf77eb0cd10cace4044b3"`
[INFO] [stderr]    Compiling drum_machine v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(collections)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/sequence/sequence.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |             1...0b11111111 => 8,
[INFO] [stderr]    |              ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/sequence/sequence.rs:28:24
[INFO] [stderr]    |
[INFO] [stderr] 28 |             0b100000000...0b1111111111111111 => 16,
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/sequence/sequence.rs:29:32
[INFO] [stderr]    |
[INFO] [stderr] 29 |             0b10000000000000000...4294967295 => 32,
[INFO] [stderr]    |                                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> src/track/track.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |             thread::sleep_ms(step_time);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/track/track.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |         "kick+snare" => String::from_str("boom click"),
[INFO] [stderr]    |                                 ^^^^^^^^ function or associated item not found in `std::string::String`
[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 std::str::FromStr;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/track/track.rs:20:33
[INFO] [stderr]    |
[INFO] [stderr] 20 |         "kick"       => String::from_str("boom"),
[INFO] [stderr]    |                                 ^^^^^^^^ function or associated item not found in `std::string::String`
[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 std::str::FromStr;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/track/track.rs:21:33
[INFO] [stderr]    |
[INFO] [stderr] 21 |         "snare"      => String::from_str("click"),
[INFO] [stderr]    |                                 ^^^^^^^^ function or associated item not found in `std::string::String`
[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 std::str::FromStr;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/track/track.rs:22:33
[INFO] [stderr]    |
[INFO] [stderr] 22 |         "hihat"      => String::from_str("ting"),
[INFO] [stderr]    |                                 ^^^^^^^^ function or associated item not found in `std::string::String`
[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 std::str::FromStr;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `from_str` found for type `std::string::String` in the current scope
[INFO] [stderr]   --> src/track/track.rs:23:33
[INFO] [stderr]    |
[INFO] [stderr] 23 |         _            => String::from_str("")
[INFO] [stderr]    |                                 ^^^^^^^^ function or associated item not found in `std::string::String`
[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 std::str::FromStr;`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `drum_machine`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c1f144f869dd488093422f2b7078f5123ed0ebb8f0caf77eb0cd10cace4044b3"`
[INFO] running `"docker" "rm" "-f" "c1f144f869dd488093422f2b7078f5123ed0ebb8f0caf77eb0cd10cace4044b3"`
[INFO] [stdout] c1f144f869dd488093422f2b7078f5123ed0ebb8f0caf77eb0cd10cace4044b3