[INFO] updating cached repository jml/rust-scratch [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jml/rust-scratch [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jml/rust-scratch" "work/ex/beta-1.38-1/sources/1.37.0/gh/jml/rust-scratch"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jml/rust-scratch'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jml/rust-scratch" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jml/rust-scratch"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jml/rust-scratch'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cc4ed43122015a4c7fde821eb62b575b53737764 [INFO] sha for GitHub repo jml/rust-scratch: cc4ed43122015a4c7fde821eb62b575b53737764 [INFO] validating manifest of jml/rust-scratch 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 jml/rust-scratch 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 jml/rust-scratch [INFO] finished frobbing jml/rust-scratch [INFO] frobbed toml for jml/rust-scratch written to work/ex/beta-1.38-1/sources/1.37.0/gh/jml/rust-scratch/Cargo.toml [INFO] started frobbing jml/rust-scratch [INFO] finished frobbing jml/rust-scratch [INFO] frobbed toml for jml/rust-scratch written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jml/rust-scratch/Cargo.toml [INFO] crate jml/rust-scratch 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 jml/rust-scratch against beta-2019-08-13 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jml/rust-scratch:/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-2019-08-13" "build" "--frozen"` [INFO] [stdout] 3795d0f4dad67150e232a8508a0092399dff0f30a0bdee7c13bdd5c1fbd200d7 [INFO] running `"docker" "start" "-a" "3795d0f4dad67150e232a8508a0092399dff0f30a0bdee7c13bdd5c1fbd200d7"` [INFO] [stderr] Compiling target v0.0.1 (/opt/crater/workdir) [INFO] [stderr] error: expected type, found `|` [INFO] [stderr] --> src/lib.rs:51:91 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn accumulate>(sequence: &mut T, init: A, f: |A, K| -> A) -> TreeMap { [INFO] [stderr] | ^ expected type [INFO] [stderr] [INFO] [stderr] error: expected one of `:` or `@`, found `|` [INFO] [stderr] --> src/lib.rs:51:96 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn accumulate>(sequence: &mut T, init: A, f: |A, K| -> A) -> TreeMap { [INFO] [stderr] | ^ expected one of `:` or `@` here [INFO] [stderr] [INFO] [stderr] error: invalid suffix `i` for integer literal [INFO] [stderr] --> src/lib.rs:87:42 [INFO] [stderr] | [INFO] [stderr] 87 | accumulate(sequence, 1, |x, _| { x + 1i }) [INFO] [stderr] | ^^ invalid suffix `i` [INFO] [stderr] | [INFO] [stderr] = help: the suffix must be one of the integral types (`u32`, `isize`, etc) [INFO] [stderr] [INFO] [stderr] error: invalid suffix `i` for integer literal [INFO] [stderr] --> src/lib.rs:131:33 [INFO] [stderr] | [INFO] [stderr] 131 | Some(x) => if *x >= 1i { *x -= 1i } else { return false }, [INFO] [stderr] | ^^ invalid suffix `i` [INFO] [stderr] | [INFO] [stderr] = help: the suffix must be one of the integral types (`u32`, `isize`, etc) [INFO] [stderr] [INFO] [stderr] error: invalid suffix `i` for integer literal [INFO] [stderr] --> src/lib.rs:131:44 [INFO] [stderr] | [INFO] [stderr] 131 | Some(x) => if *x >= 1i { *x -= 1i } else { return false }, [INFO] [stderr] | ^^ invalid suffix `i` [INFO] [stderr] | [INFO] [stderr] = help: the suffix must be one of the integral types (`u32`, `isize`, etc) [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `std::collections::TreeMap` [INFO] [stderr] --> src/lib.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::TreeMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^------- [INFO] [stderr] | | | [INFO] [stderr] | | help: a similar name exists in the module: `BTreeMap` [INFO] [stderr] | no `TreeMap` in `collections` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `std::collections::TreeMap` [INFO] [stderr] --> src/lib.rs:160:9 [INFO] [stderr] | [INFO] [stderr] 160 | use std::collections::TreeMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^------- [INFO] [stderr] | | | [INFO] [stderr] | | help: a similar name exists in the module: `BTreeMap` [INFO] [stderr] | no `TreeMap` in `collections` [INFO] [stderr] [INFO] [stderr] error[E0425]: cannot find function `f` in this scope [INFO] [stderr] --> src/lib.rs:59:28 [INFO] [stderr] | [INFO] [stderr] 59 | Some(i) => f(i, x.clone()), [INFO] [stderr] | ^ help: a local variable with a similar name exists: `i` [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `int` in this scope [INFO] [stderr] --> src/lib.rs:86:82 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn frequency>(sequence: &mut T) -> TreeMap { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `int` in this scope [INFO] [stderr] --> src/lib.rs:111:51 [INFO] [stderr] | [INFO] [stderr] 111 | pub fn letter_counts(word: &str) -> TreeMap { [INFO] [stderr] | ^^^ not found in this scope [INFO] [stderr] [INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1 [INFO] [stderr] --> src/lib.rs:51:57 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn accumulate>(sequence: &mut T, init: A, f: |A, K| -> A) -> TreeMap { [INFO] [stderr] | ^ unexpected type argument [INFO] [stderr] [INFO] [stderr] error[E0107]: wrong number of type arguments: expected 0, found 1 [INFO] [stderr] --> src/lib.rs:86:46 [INFO] [stderr] | [INFO] [stderr] 86 | pub fn frequency>(sequence: &mut T) -> TreeMap { [INFO] [stderr] | ^ unexpected type argument [INFO] [stderr] [INFO] [stderr] error: aborting due to 12 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0107, E0412, E0425, E0432. [INFO] [stderr] For more information about an error, try `rustc --explain E0107`. [INFO] [stderr] error: Could not compile `target`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "3795d0f4dad67150e232a8508a0092399dff0f30a0bdee7c13bdd5c1fbd200d7"` [INFO] running `"docker" "rm" "-f" "3795d0f4dad67150e232a8508a0092399dff0f30a0bdee7c13bdd5c1fbd200d7"` [INFO] [stdout] 3795d0f4dad67150e232a8508a0092399dff0f30a0bdee7c13bdd5c1fbd200d7