[INFO] updating cached repository ljcusack/rust-playpen [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ljcusack/rust-playpen [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ljcusack/rust-playpen" "work/ex/beta-1.38-1/sources/1.37.0/gh/ljcusack/rust-playpen"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ljcusack/rust-playpen'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ljcusack/rust-playpen" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ljcusack/rust-playpen"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ljcusack/rust-playpen'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] de9e77d2d9a207a506493bc2d739ac4e070c4465 [INFO] sha for GitHub repo ljcusack/rust-playpen: de9e77d2d9a207a506493bc2d739ac4e070c4465 [INFO] validating manifest of ljcusack/rust-playpen 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 ljcusack/rust-playpen 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 ljcusack/rust-playpen [INFO] finished frobbing ljcusack/rust-playpen [INFO] frobbed toml for ljcusack/rust-playpen written to work/ex/beta-1.38-1/sources/1.37.0/gh/ljcusack/rust-playpen/Cargo.toml [INFO] started frobbing ljcusack/rust-playpen [INFO] finished frobbing ljcusack/rust-playpen [INFO] frobbed toml for ljcusack/rust-playpen written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ljcusack/rust-playpen/Cargo.toml [INFO] crate ljcusack/rust-playpen 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] testing ljcusack/rust-playpen 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ljcusack/rust-playpen:/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] 2ca485381f6a2500a34a6462aa468ff66e176ed87ab8db4f6e372de2cb1cb195 [INFO] running `"docker" "start" "-a" "2ca485381f6a2500a34a6462aa468ff66e176ed87ab8db4f6e372de2cb1cb195"` [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error: chained comparison operators require parentheses [INFO] [stderr] --> src/bin/consumers.rs:3:46 [INFO] [stderr] | [INFO] [stderr] 3 | let one_to_one_hundred = (1..101).collect>(); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: use `::<...>` instead of `<...>` if you meant to specify type arguments [INFO] [stderr] = help: or use `(...)` if you meant to specify fn arguments [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/loops.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let mut nums = vec![1, 2, 3]; [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] warning: unused import: `std::mem` [INFO] [stderr] --> src/bin/memory3.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::mem; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stderr] --> src/bin/threads.rs:19:5 [INFO] [stderr] | [INFO] [stderr] 19 | thread::sleep_ms(50); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] error[E0382]: use of moved value: `data` [INFO] [stderr] --> src/bin/threads.rs:14:23 [INFO] [stderr] | [INFO] [stderr] 12 | let mut data = vec![1, 2, 3]; [INFO] [stderr] | -------- move occurs because `data` has type `std::vec::Vec`, which does not implement the `Copy` trait [INFO] [stderr] 13 | for i in 0..3 { [INFO] [stderr] 14 | thread::spawn(move || { [INFO] [stderr] | ^^^^^^^ value moved into closure here, in previous iteration of loop [INFO] [stderr] 15 | data[i] += 1; [INFO] [stderr] | ---- use occurs due to use in closure [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0382`. [INFO] [stderr] warning: field is never used: `size` [INFO] [stderr] --> src/bin/list.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | size: i32, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `head` [INFO] [stderr] --> src/bin/list.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | head: Link, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `item` [INFO] [stderr] --> src/bin/list.rs:9:4 [INFO] [stderr] | [INFO] [stderr] 9 | item: T, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `next` [INFO] [stderr] --> src/bin/list.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | next: Link, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: Could not compile `hello_world`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0423]: expected value, found struct `Vec` [INFO] [stderr] --> src/bin/consumers.rs:3:47 [INFO] [stderr] | [INFO] [stderr] 3 | let one_to_one_hundred = (1..101).collect>(); [INFO] [stderr] | ^^^ did you mean `Vec { /* fields */ }`? [INFO] [stderr] [INFO] [stderr] error[E0423]: expected value, found builtin type `i32` [INFO] [stderr] --> src/bin/consumers.rs:3:51 [INFO] [stderr] | [INFO] [stderr] 3 | let one_to_one_hundred = (1..101).collect>(); [INFO] [stderr] | ^^^ not a value [INFO] [stderr] [INFO] [stderr] error[E0423]: expected function, found macro `println` [INFO] [stderr] --> src/bin/consumers.rs:8:20 [INFO] [stderr] | [INFO] [stderr] 8 | Some(_) => println("Found a match!"), [INFO] [stderr] | ^^^^^^^ help: use `!` to invoke the macro: `println!` [INFO] [stderr] [INFO] [stderr] error[E0615]: attempted to take value of method `collect` on type `std::ops::Range<{integer}>` [INFO] [stderr] --> src/bin/consumers.rs:3:39 [INFO] [stderr] | [INFO] [stderr] 3 | let one_to_one_hundred = (1..101).collect>(); [INFO] [stderr] | ^^^^^^^ help: use parentheses to call the method: `collect()` [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0423, E0615. [INFO] [stderr] For more information about an error, try `rustc --explain E0423`. [INFO] [stderr] error: Could not compile `hello_world`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "2ca485381f6a2500a34a6462aa468ff66e176ed87ab8db4f6e372de2cb1cb195"` [INFO] running `"docker" "rm" "-f" "2ca485381f6a2500a34a6462aa468ff66e176ed87ab8db4f6e372de2cb1cb195"` [INFO] [stdout] 2ca485381f6a2500a34a6462aa468ff66e176ed87ab8db4f6e372de2cb1cb195