[INFO] updating cached repository https://github.com/tomc1998/specs_test
[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] 7c82dd36d319a3f4e0bf57a787663baa067001c5
[INFO] testing tomc1998/specs_test against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftomc1998%2Fspecs_test" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tomc1998/specs_test 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/tomc1998/specs_test
[INFO] finished tweaking git repo https://github.com/tomc1998/specs_test
[INFO] tweaked toml for git repo https://github.com/tomc1998/specs_test written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tomc1998/specs_test 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] b30f45fea3f86dac2c430449b544e91e41051e411cf686d8d10074d1582b0c3b
[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" "b30f45fea3f86dac2c430449b544e91e41051e411cf686d8d10074d1582b0c3b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling atom v0.3.4
[INFO] [stderr]    Compiling threadpool v1.3.2
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling ticketed_lock v0.1.0
[INFO] [stderr]    Compiling num_cpus v1.4.0
[INFO] [stderr]    Compiling x11-dl v2.13.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling wayland-scanner v0.7.8
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling tempfile v2.1.5
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling pulse v0.5.3
[INFO] [stderr]    Compiling specs v0.8.1
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling glutin v0.7.4
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling wayland-client v0.7.8
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling libloading v0.3.4
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.7.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling wayland-window v0.4.4
[INFO] [stderr]    Compiling wayland-kbd v0.6.3
[INFO] [stderr]    Compiling winit v0.5.11
[INFO] [stderr]    Compiling specs_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, StdRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `"docker" "inspect" "b30f45fea3f86dac2c430449b544e91e41051e411cf686d8d10074d1582b0c3b"`
[INFO] running `"docker" "rm" "-f" "b30f45fea3f86dac2c430449b544e91e41051e411cf686d8d10074d1582b0c3b"`
[INFO] [stdout] b30f45fea3f86dac2c430449b544e91e41051e411cf686d8d10074d1582b0c3b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1adf524a0b6fa6b712e763dae5050f6ba0a6c779e188e35f734d34a83f16c4c4
[INFO] running `"docker" "start" "-a" "1adf524a0b6fa6b712e763dae5050f6ba0a6c779e188e35f734d34a83f16c4c4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling specs_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, StdRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "1adf524a0b6fa6b712e763dae5050f6ba0a6c779e188e35f734d34a83f16c4c4"`
[INFO] running `"docker" "rm" "-f" "1adf524a0b6fa6b712e763dae5050f6ba0a6c779e188e35f734d34a83f16c4c4"`
[INFO] [stdout] 1adf524a0b6fa6b712e763dae5050f6ba0a6c779e188e35f734d34a83f16c4c4
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 4dbd27b83959ab9586ea13abb83a8e0256b57bdb138344e82cd316d558c86ba9
[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" "4dbd27b83959ab9586ea13abb83a8e0256b57bdb138344e82cd316d558c86ba9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, StdRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rng`
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[INFO] [stderr]    |       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:7
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let mut rng = StdRng::new().unwrap();
[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: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/specs_test-e0b675d46a1feb9f
[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" "4dbd27b83959ab9586ea13abb83a8e0256b57bdb138344e82cd316d558c86ba9"`
[INFO] running `"docker" "rm" "-f" "4dbd27b83959ab9586ea13abb83a8e0256b57bdb138344e82cd316d558c86ba9"`
[INFO] [stdout] 4dbd27b83959ab9586ea13abb83a8e0256b57bdb138344e82cd316d558c86ba9