[INFO] cloning repository https://github.com/vijaykm2/RustByExample [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vijaykm2/RustByExample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FRustByExample"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FRustByExample'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 116636d2c5b6e1a3889b8d5364a9f21eb8d25410 [INFO] testing vijaykm2/RustByExample against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaykm2%2FRustByExample" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/vijaykm2/RustByExample 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/vijaykm2/RustByExample [INFO] finished tweaking git repo https://github.com/vijaykm2/RustByExample [INFO] tweaked toml for git repo https://github.com/vijaykm2/RustByExample written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/vijaykm2/RustByExample 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2e4b21b3c35a04ebfe1628dd9858c50630ae836ea2729dad80a574fb29028fa5 [INFO] running `"docker" "start" "-a" "2e4b21b3c35a04ebfe1628dd9858c50630ae836ea2729dad80a574fb29028fa5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling RustByExample v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `crate::ch2::primitives` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::ch2::primitives; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/ch2/primitives.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let logical:bool = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_float` [INFO] [stderr] --> src/ch2/primitives.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let a_float: f64=111.222; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_int` [INFO] [stderr] --> src/ch2/primitives.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | let an_int = 5i32; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_int` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/ch2/primitives.rs:8:13 [INFO] [stderr] | [INFO] [stderr] 8 | let default_float=12.23; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_int` [INFO] [stderr] --> src/ch2/primitives.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let default_int=232; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_int` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | let mut inferred_type=123; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/ch2/primitives.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | inferred_type=123123123123123i64; [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 `mutable` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable=23; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/ch2/primitives.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | mutable=32; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/ch2/primitives.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | let mutable=false; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `unit` [INFO] [stderr] --> src/ch3/custom_types.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let unit:Unit; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_unit` [INFO] [stderr] [INFO] [stderr] warning: crate `RustByExample` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_by_example` [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `"docker" "inspect" "2e4b21b3c35a04ebfe1628dd9858c50630ae836ea2729dad80a574fb29028fa5"` [INFO] running `"docker" "rm" "-f" "2e4b21b3c35a04ebfe1628dd9858c50630ae836ea2729dad80a574fb29028fa5"` [INFO] [stdout] 2e4b21b3c35a04ebfe1628dd9858c50630ae836ea2729dad80a574fb29028fa5 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 05c066cd75f80dd830eb4edf4ac08f876011ffc7b156cccbcda5ad50e9bb25fa [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" "05c066cd75f80dd830eb4edf4ac08f876011ffc7b156cccbcda5ad50e9bb25fa"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling RustByExample v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `crate::ch2::primitives` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::ch2::primitives; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/ch2/primitives.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let logical:bool = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_float` [INFO] [stderr] --> src/ch2/primitives.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let a_float: f64=111.222; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_int` [INFO] [stderr] --> src/ch2/primitives.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | let an_int = 5i32; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_int` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/ch2/primitives.rs:8:13 [INFO] [stderr] | [INFO] [stderr] 8 | let default_float=12.23; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_int` [INFO] [stderr] --> src/ch2/primitives.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let default_int=232; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_int` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | let mut inferred_type=123; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/ch2/primitives.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | inferred_type=123123123123123i64; [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 `mutable` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable=23; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/ch2/primitives.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | mutable=32; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/ch2/primitives.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | let mutable=false; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `unit` [INFO] [stderr] --> src/ch3/custom_types.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let unit:Unit; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_unit` [INFO] [stderr] [INFO] [stderr] warning: crate `RustByExample` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_by_example` [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `"docker" "inspect" "05c066cd75f80dd830eb4edf4ac08f876011ffc7b156cccbcda5ad50e9bb25fa"` [INFO] running `"docker" "rm" "-f" "05c066cd75f80dd830eb4edf4ac08f876011ffc7b156cccbcda5ad50e9bb25fa"` [INFO] [stdout] 05c066cd75f80dd830eb4edf4ac08f876011ffc7b156cccbcda5ad50e9bb25fa [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 51156e3c1ced0366a10097fdf96b774b5f8c331941daa88f06225807d174fcfa [INFO] running `"docker" "start" "-a" "51156e3c1ced0366a10097fdf96b774b5f8c331941daa88f06225807d174fcfa"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `crate::ch2::primitives` [INFO] [stderr] --> src/main.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use crate::ch2::primitives; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/ch2/primitives.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let logical:bool = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_logical` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a_float` [INFO] [stderr] --> src/ch2/primitives.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let a_float: f64=111.222; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_int` [INFO] [stderr] --> src/ch2/primitives.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | let an_int = 5i32; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_int` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/ch2/primitives.rs:8:13 [INFO] [stderr] | [INFO] [stderr] 8 | let default_float=12.23; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_int` [INFO] [stderr] --> src/ch2/primitives.rs:9:13 [INFO] [stderr] | [INFO] [stderr] 9 | let default_int=232; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_int` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:10:13 [INFO] [stderr] | [INFO] [stderr] 10 | let mut inferred_type=123; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_inferred_type` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `inferred_type` is never read [INFO] [stderr] --> src/ch2/primitives.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | inferred_type=123123123123123i64; [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 `mutable` is assigned to, but never used [INFO] [stderr] --> src/ch2/primitives.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut mutable=23; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_mutable` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `mutable` is never read [INFO] [stderr] --> src/ch2/primitives.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | mutable=32; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `mutable` [INFO] [stderr] --> src/ch2/primitives.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | let mutable=false; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `unit` [INFO] [stderr] --> src/ch3/custom_types.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let unit:Unit; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_unit` [INFO] [stderr] [INFO] [stderr] warning: crate `RustByExample` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_by_example` [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/RustByExample-ba1b298fc078b9f6 [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" "51156e3c1ced0366a10097fdf96b774b5f8c331941daa88f06225807d174fcfa"` [INFO] running `"docker" "rm" "-f" "51156e3c1ced0366a10097fdf96b774b5f8c331941daa88f06225807d174fcfa"` [INFO] [stdout] 51156e3c1ced0366a10097fdf96b774b5f8c331941daa88f06225807d174fcfa