[INFO] updating cached repository https://github.com/ljcusack/rust-playpen [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] de9e77d2d9a207a506493bc2d739ac4e070c4465 [INFO] testing ljcusack/rust-playpen against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fljcusack%2Frust-playpen" "/workspace/builds/worker-10/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ljcusack/rust-playpen on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/ljcusack/rust-playpen [INFO] finished tweaking git repo https://github.com/ljcusack/rust-playpen [INFO] tweaked toml for git repo https://github.com/ljcusack/rust-playpen written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/ljcusack/rust-playpen already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4218ad15387b2022bfe60d6e76fc5363420b92646b4f318d1f95674a07927119 [INFO] running `"docker" "start" "-a" "4218ad15387b2022bfe60d6e76fc5363420b92646b4f318d1f95674a07927119"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling hello_world v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: comparison operators cannot be chained [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 `<...>` to specify type arguments [INFO] [stderr] | [INFO] [stderr] 3 | let one_to_one_hundred = (1..101).collect::>(); [INFO] [stderr] | ^^ [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] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] help: use `!` to invoke the macro [INFO] [stderr] | [INFO] [stderr] 8 | Some(_) => println!("Found a match!"), [INFO] [stderr] | ^ [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] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0423`. [INFO] [stderr] error: could not compile `hello_world`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: field is never read: `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 read: `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 read: `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 read: `next` [INFO] [stderr] --> src/bin/list.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | next: Link, [INFO] [stderr] | ^^^^^^^^^^^^^ [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: variant is never constructed: `Morning` [INFO] [stderr] --> src/bin/match.rs:10:4 [INFO] [stderr] | [INFO] [stderr] 10 | Morning(i32), [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Afternoon` [INFO] [stderr] --> src/bin/match.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | Afternoon(i32), [INFO] [stderr] | ^^^^^^^^^^^^^^ [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[E0277]: `fn(i32, i32) -> i32 {add}` doesn't implement `std::fmt::Debug` [INFO] [stderr] --> src/bin/fn_pointers.rs:12:32 [INFO] [stderr] | [INFO] [stderr] 12 | println!("fn_ptr2: \t{:?}", fn_ptr2); [INFO] [stderr] | ^^^^^^^ `fn(i32, i32) -> i32 {add}` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug` [INFO] [stderr] ... [INFO] [stderr] 16 | fn add(i: i32, j: i32) -> i32 { [INFO] [stderr] | --- consider calling this function [INFO] [stderr] | [INFO] [stderr] = help: the trait `std::fmt::Debug` is not implemented for `fn(i32, i32) -> i32 {add}` [INFO] [stderr] = help: use parentheses to call the function: `add(i, j)` [INFO] [stderr] = note: required by `std::fmt::Debug::fmt` [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0277`. [INFO] [stderr] error: aborting due to previous error; 1 warning emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0382`. [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "4218ad15387b2022bfe60d6e76fc5363420b92646b4f318d1f95674a07927119"` [INFO] running `"docker" "rm" "-f" "4218ad15387b2022bfe60d6e76fc5363420b92646b4f318d1f95674a07927119"` [INFO] [stdout] 4218ad15387b2022bfe60d6e76fc5363420b92646b4f318d1f95674a07927119