[INFO] updating cached repository FrankYang4/learning-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/FrankYang4/learning-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/FrankYang4/learning-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/FrankYang4/learning-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/FrankYang4/learning-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/FrankYang4/learning-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrankYang4/learning-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrankYang4/learning-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 17008ef4e40720b3cc35879685621cb06d8b553b [INFO] sha for GitHub repo FrankYang4/learning-rust: 17008ef4e40720b3cc35879685621cb06d8b553b [INFO] validating manifest of FrankYang4/learning-rust 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 FrankYang4/learning-rust 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 FrankYang4/learning-rust [INFO] finished frobbing FrankYang4/learning-rust [INFO] frobbed toml for FrankYang4/learning-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/FrankYang4/learning-rust/Cargo.toml [INFO] started frobbing FrankYang4/learning-rust [INFO] finished frobbing FrankYang4/learning-rust [INFO] frobbed toml for FrankYang4/learning-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/FrankYang4/learning-rust/Cargo.toml [INFO] crate FrankYang4/learning-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing FrankYang4/learning-rust 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/FrankYang4/learning-rust:/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] b9ac500ecc6498ee742432660f6ccbada0e07212c9b332c4d5b9cfdfd898a2ba [INFO] running `"docker" "start" "-a" "b9ac500ecc6498ee742432660f6ccbada0e07212c9b332c4d5b9cfdfd898a2ba"` [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `"docker" "inspect" "b9ac500ecc6498ee742432660f6ccbada0e07212c9b332c4d5b9cfdfd898a2ba"` [INFO] running `"docker" "rm" "-f" "b9ac500ecc6498ee742432660f6ccbada0e07212c9b332c4d5b9cfdfd898a2ba"` [INFO] [stdout] b9ac500ecc6498ee742432660f6ccbada0e07212c9b332c4d5b9cfdfd898a2ba [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/FrankYang4/learning-rust:/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" "test" "--frozen" "--no-run"` [INFO] [stdout] ff166c89b388eaaa564f825d128e501259fffd3a3621131a06090ce4893b1a02 [INFO] running `"docker" "start" "-a" "ff166c89b388eaaa564f825d128e501259fffd3a3621131a06090ce4893b1a02"` [INFO] [stderr] Compiling learning_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> examples/match_pattern.rs:26:14 [INFO] [stderr] | [INFO] [stderr] 26 | d @ 1...5 => println!("weekday {}", d), [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: floating-point types cannot be used in patterns [INFO] [stderr] --> examples/match_pattern.rs:9:10 [INFO] [stderr] | [INFO] [stderr] 9 | (1.2, y) => println!("x is 1.2, y is {}", y), [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(illegal_floating_point_literal_pattern)] on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #41620 [INFO] [stderr] [INFO] [stderr] warning: floating-point types cannot be used in patterns [INFO] [stderr] --> examples/match_pattern.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | (x, 4.3) => println!("x is {}, y is 4.3", x), [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #41620 [INFO] [stderr] [INFO] [stderr] warning: floating-point types cannot be used in patterns [INFO] [stderr] --> examples/match_pattern.rs:9:10 [INFO] [stderr] | [INFO] [stderr] 9 | (1.2, y) => println!("x is 1.2, y is {}", y), [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #41620 [INFO] [stderr] [INFO] [stderr] error: unexpected token: `...` [INFO] [stderr] --> examples/array.rs:10:21 [INFO] [stderr] | [INFO] [stderr] 10 | &arr2[1...2]); [INFO] [stderr] | ^^^ [INFO] [stderr] help: use `..` for an exclusive range [INFO] [stderr] | [INFO] [stderr] 10 | &arr2[1..2]); [INFO] [stderr] | ^^ [INFO] [stderr] help: or `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] 10 | &arr2[1..=2]); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> examples/array.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(inclusive_range_syntax)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> examples/boxes.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(box_syntax, box_patterns)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [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 `learning_rust`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `learning_rust`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/vec.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut v5 = &mut v4; [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "ff166c89b388eaaa564f825d128e501259fffd3a3621131a06090ce4893b1a02"` [INFO] running `"docker" "rm" "-f" "ff166c89b388eaaa564f825d128e501259fffd3a3621131a06090ce4893b1a02"` [INFO] [stdout] ff166c89b388eaaa564f825d128e501259fffd3a3621131a06090ce4893b1a02