[INFO] updating cached repository https://github.com/aPere3/playgrust [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] 13d1f4b7ee8a915dde19a6a33183494012a6f538 [INFO] testing aPere3/playgrust against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaPere3%2Fplaygrust" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aPere3/playgrust 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/aPere3/playgrust [INFO] finished tweaking git repo https://github.com/aPere3/playgrust [INFO] tweaked toml for git repo https://github.com/aPere3/playgrust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/aPere3/playgrust 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] c5f69d614d4335f3e827f97936f5c53ad8b60dc608b2ce7c88ea91e4faf6d07b [INFO] running `"docker" "start" "-a" "c5f69d614d4335f3e827f97936f5c53ad8b60dc608b2ce7c88ea91e4faf6d07b"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling playgrust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: the item `Eq` is imported redundantly [INFO] [stderr] --> src/rust_book/mod.rs:1082:13 [INFO] [stderr] | [INFO] [stderr] 1082 | use std::cmp::Eq; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:802:17 [INFO] [stderr] | [INFO] [stderr] 802 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:819:17 [INFO] [stderr] | [INFO] [stderr] 819 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:836:17 [INFO] [stderr] | [INFO] [stderr] 836 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:847:17 [INFO] [stderr] | [INFO] [stderr] 847 | let f: Result<&str, &str> = Result::Err("Failure").unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:850:17 [INFO] [stderr] | [INFO] [stderr] 850 | let f: Result<&str, &str> = Result::Err("Failure").expect("The program failed"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/rust_book/mod.rs:1275:17 [INFO] [stderr] | [INFO] [stderr] 1275 | let a = MySmartPointer(String::from("Hey guys")); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/rust_book/mod.rs:1317:13 [INFO] [stderr] | [INFO] [stderr] 1317 | let b = List3::Cons(3, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/rust_book/mod.rs:1320:17 [INFO] [stderr] | [INFO] [stderr] 1320 | let c = List3::Cons(4, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `max_index` is never read [INFO] [stderr] --> src/rust_book/mod.rs:958:21 [INFO] [stderr] | [INFO] [stderr] 958 | let mut max_index = 0; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/rust_book/mod.rs:1182:13 [INFO] [stderr] | [INFO] [stderr] 1182 | let mut a = MyIterableArray::new(); [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: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.12s [INFO] running `"docker" "inspect" "c5f69d614d4335f3e827f97936f5c53ad8b60dc608b2ce7c88ea91e4faf6d07b"` [INFO] running `"docker" "rm" "-f" "c5f69d614d4335f3e827f97936f5c53ad8b60dc608b2ce7c88ea91e4faf6d07b"` [INFO] [stdout] c5f69d614d4335f3e827f97936f5c53ad8b60dc608b2ce7c88ea91e4faf6d07b [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] fb329db2b55766b88f55b0451e0887edc81d3779ca2aebac2259faeff96c7c72 [INFO] running `"docker" "start" "-a" "fb329db2b55766b88f55b0451e0887edc81d3779ca2aebac2259faeff96c7c72"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling playgrust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: the item `Eq` is imported redundantly [INFO] [stderr] --> src/rust_book/mod.rs:1082:13 [INFO] [stderr] | [INFO] [stderr] 1082 | use std::cmp::Eq; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:802:17 [INFO] [stderr] | [INFO] [stderr] 802 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:819:17 [INFO] [stderr] | [INFO] [stderr] 819 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:836:17 [INFO] [stderr] | [INFO] [stderr] 836 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:847:17 [INFO] [stderr] | [INFO] [stderr] 847 | let f: Result<&str, &str> = Result::Err("Failure").unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:850:17 [INFO] [stderr] | [INFO] [stderr] 850 | let f: Result<&str, &str> = Result::Err("Failure").expect("The program failed"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/rust_book/mod.rs:1275:17 [INFO] [stderr] | [INFO] [stderr] 1275 | let a = MySmartPointer(String::from("Hey guys")); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/rust_book/mod.rs:1317:13 [INFO] [stderr] | [INFO] [stderr] 1317 | let b = List3::Cons(3, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/rust_book/mod.rs:1320:17 [INFO] [stderr] | [INFO] [stderr] 1320 | let c = List3::Cons(4, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `max_index` is never read [INFO] [stderr] --> src/rust_book/mod.rs:958:21 [INFO] [stderr] | [INFO] [stderr] 958 | let mut max_index = 0; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/rust_book/mod.rs:1182:13 [INFO] [stderr] | [INFO] [stderr] 1182 | let mut a = MyIterableArray::new(); [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: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `"docker" "inspect" "fb329db2b55766b88f55b0451e0887edc81d3779ca2aebac2259faeff96c7c72"` [INFO] running `"docker" "rm" "-f" "fb329db2b55766b88f55b0451e0887edc81d3779ca2aebac2259faeff96c7c72"` [INFO] [stdout] fb329db2b55766b88f55b0451e0887edc81d3779ca2aebac2259faeff96c7c72 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 1cb226a44869c4b6c8e0cd53242d79abe64263066f365de3bc682bb2bd8ea7b5 [INFO] running `"docker" "start" "-a" "1cb226a44869c4b6c8e0cd53242d79abe64263066f365de3bc682bb2bd8ea7b5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: the item `Eq` is imported redundantly [INFO] [stderr] --> src/rust_book/mod.rs:1082:13 [INFO] [stderr] | [INFO] [stderr] 1082 | use std::cmp::Eq; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:802:17 [INFO] [stderr] | [INFO] [stderr] 802 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:819:17 [INFO] [stderr] | [INFO] [stderr] 819 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `message` [INFO] [stderr] --> src/rust_book/mod.rs:836:17 [INFO] [stderr] | [INFO] [stderr] 836 | Err(message) => { [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:847:17 [INFO] [stderr] | [INFO] [stderr] 847 | let f: Result<&str, &str> = Result::Err("Failure").unwrap(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/rust_book/mod.rs:850:17 [INFO] [stderr] | [INFO] [stderr] 850 | let f: Result<&str, &str> = Result::Err("Failure").expect("The program failed"); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/rust_book/mod.rs:1275:17 [INFO] [stderr] | [INFO] [stderr] 1275 | let a = MySmartPointer(String::from("Hey guys")); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/rust_book/mod.rs:1317:13 [INFO] [stderr] | [INFO] [stderr] 1317 | let b = List3::Cons(3, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/rust_book/mod.rs:1320:17 [INFO] [stderr] | [INFO] [stderr] 1320 | let c = List3::Cons(4, Rc::clone(&a)); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `max_index` is never read [INFO] [stderr] --> src/rust_book/mod.rs:958:21 [INFO] [stderr] | [INFO] [stderr] 958 | let mut max_index = 0; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/rust_book/mod.rs:1182:13 [INFO] [stderr] | [INFO] [stderr] 1182 | let mut a = MyIterableArray::new(); [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: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/playgrust-66d57ef8a109eacc [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "1cb226a44869c4b6c8e0cd53242d79abe64263066f365de3bc682bb2bd8ea7b5"` [INFO] running `"docker" "rm" "-f" "1cb226a44869c4b6c8e0cd53242d79abe64263066f365de3bc682bb2bd8ea7b5"` [INFO] [stdout] 1cb226a44869c4b6c8e0cd53242d79abe64263066f365de3bc682bb2bd8ea7b5