[INFO] updating cached repository https://github.com/harksin/probs [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] 93ae2efdacbead7b46474b2e406704193c5022fc [INFO] testing harksin/probs against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharksin%2Fprobs" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/harksin/probs 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/harksin/probs [INFO] finished tweaking git repo https://github.com/harksin/probs [INFO] tweaked toml for git repo https://github.com/harksin/probs written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/harksin/probs 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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 0ba225348703d5e9bb9e6b002d12da49e78aa2614c95f35dd4ddebbf9bac5f29 [INFO] running `"docker" "start" "-a" "0ba225348703d5e9bb9e6b002d12da49e78aa2614c95f35dd4ddebbf9bac5f29"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling memchr v2.3.0 [INFO] [stderr] Compiling anyhow v1.0.25 [INFO] [stderr] Compiling once_cell v1.2.0 [INFO] [stderr] Compiling lock_api v0.3.2 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling async-task v1.3.1 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling parking_lot v0.10.0 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling mio-uds v0.6.7 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling broadcaster v1.0.0 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling async-std v1.5.0 [INFO] [stderr] Compiling probs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `core::fmt::Formatter` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use core::fmt::Formatter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::prelude::*` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use async_std::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::stream::Extend` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use async_std::stream::Extend; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `FromStream`, `Product`, `Sum` [INFO] [stderr] --> src/main.rs:22:25 [INFO] [stderr] | [INFO] [stderr] 22 | use async_std::stream::{FromStream, Product, Sum}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::task` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | use async_std::task; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut a = ticker [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | let mut b = a.scan(1isize, |state, x| { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let mut c = Append::new(b, String::from("-usefull-suffix")); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut k1 = c.filter(|item| item.isSomething); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:121:13 [INFO] [stderr] | [INFO] [stderr] 121 | Some(_) => { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `text` [INFO] [stderr] --> src/main.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | text: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `output` [INFO] [stderr] --> src/main.rs:80:5 [INFO] [stderr] | [INFO] [stderr] 80 | output: usize, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `isSomething` should have a snake case name [INFO] [stderr] --> src/main.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | isSomething: bool, [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `is_something` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 46.83s [INFO] running `"docker" "inspect" "0ba225348703d5e9bb9e6b002d12da49e78aa2614c95f35dd4ddebbf9bac5f29"` [INFO] running `"docker" "rm" "-f" "0ba225348703d5e9bb9e6b002d12da49e78aa2614c95f35dd4ddebbf9bac5f29"` [INFO] [stdout] 0ba225348703d5e9bb9e6b002d12da49e78aa2614c95f35dd4ddebbf9bac5f29 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 4f12f153c870d9c06ad711c7c486d9744a96c96589393dae787045f7a8af1973 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "4f12f153c870d9c06ad711c7c486d9744a96c96589393dae787045f7a8af1973"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling probs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `core::fmt::Formatter` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use core::fmt::Formatter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::prelude::*` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use async_std::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::stream::Extend` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use async_std::stream::Extend; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `FromStream`, `Product`, `Sum` [INFO] [stderr] --> src/main.rs:22:25 [INFO] [stderr] | [INFO] [stderr] 22 | use async_std::stream::{FromStream, Product, Sum}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::task` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | use async_std::task; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut a = ticker [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | let mut b = a.scan(1isize, |state, x| { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let mut c = Append::new(b, String::from("-usefull-suffix")); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut k1 = c.filter(|item| item.isSomething); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:121:13 [INFO] [stderr] | [INFO] [stderr] 121 | Some(_) => { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `text` [INFO] [stderr] --> src/main.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | text: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `output` [INFO] [stderr] --> src/main.rs:80:5 [INFO] [stderr] | [INFO] [stderr] 80 | output: usize, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `isSomething` should have a snake case name [INFO] [stderr] --> src/main.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | isSomething: bool, [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `is_something` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.11s [INFO] running `"docker" "inspect" "4f12f153c870d9c06ad711c7c486d9744a96c96589393dae787045f7a8af1973"` [INFO] running `"docker" "rm" "-f" "4f12f153c870d9c06ad711c7c486d9744a96c96589393dae787045f7a8af1973"` [INFO] [stdout] 4f12f153c870d9c06ad711c7c486d9744a96c96589393dae787045f7a8af1973 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 27e1c76f62fa8e618693ea72671dca8a294e0b92babbaf71c9a3c591fbc1384f [INFO] running `"docker" "start" "-a" "27e1c76f62fa8e618693ea72671dca8a294e0b92babbaf71c9a3c591fbc1384f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `core::fmt::Formatter` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use core::fmt::Formatter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::prelude::*` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use async_std::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::stream::Extend` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use async_std::stream::Extend; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `FromStream`, `Product`, `Sum` [INFO] [stderr] --> src/main.rs:22:25 [INFO] [stderr] | [INFO] [stderr] 22 | use async_std::stream::{FromStream, Product, Sum}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `async_std::task` [INFO] [stderr] --> src/main.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | use async_std::task; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut a = ticker [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:38:9 [INFO] [stderr] | [INFO] [stderr] 38 | let mut b = a.scan(1isize, |state, x| { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let mut c = Append::new(b, String::from("-usefull-suffix")); [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:47:9 [INFO] [stderr] | [INFO] [stderr] 47 | let mut k1 = c.filter(|item| item.isSomething); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unreachable pattern [INFO] [stderr] --> src/main.rs:121:13 [INFO] [stderr] | [INFO] [stderr] 121 | Some(_) => { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `text` [INFO] [stderr] --> src/main.rs:79:5 [INFO] [stderr] | [INFO] [stderr] 79 | text: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `output` [INFO] [stderr] --> src/main.rs:80:5 [INFO] [stderr] | [INFO] [stderr] 80 | output: usize, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: structure field `isSomething` should have a snake case name [INFO] [stderr] --> src/main.rs:75:5 [INFO] [stderr] | [INFO] [stderr] 75 | isSomething: bool, [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to snake case: `is_something` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.34s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/probs-9e9784c8b38600e7 [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" "27e1c76f62fa8e618693ea72671dca8a294e0b92babbaf71c9a3c591fbc1384f"` [INFO] running `"docker" "rm" "-f" "27e1c76f62fa8e618693ea72671dca8a294e0b92babbaf71c9a3c591fbc1384f"` [INFO] [stdout] 27e1c76f62fa8e618693ea72671dca8a294e0b92babbaf71c9a3c591fbc1384f