[INFO] updating cached repository https://github.com/sagaban/rust-by-example [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] 2d7f259cdc0f6ca066acfa22d49b7a66667afd24 [INFO] testing sagaban/rust-by-example against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsagaban%2Frust-by-example" "/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/sagaban/rust-by-example on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/sagaban/rust-by-example [INFO] finished tweaking git repo https://github.com/sagaban/rust-by-example [INFO] tweaked toml for git repo https://github.com/sagaban/rust-by-example written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/sagaban/rust-by-example already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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" "+1.44.0" "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] 2350c72e1272487bc0df2629277652981ff0e33a0d685739066cf2ebb63e3643 [INFO] running `"docker" "start" "-a" "2350c72e1272487bc0df2629277652981ff0e33a0d685739066cf2ebb63e3643"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/chapters/c02.rs:25:7 [INFO] [stderr] | [INFO] [stderr] 25 | 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/chapters/c02.rs:27:7 [INFO] [stderr] | [INFO] [stderr] 27 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_integer` [INFO] [stderr] --> src/chapters/c02.rs:28:7 [INFO] [stderr] | [INFO] [stderr] 28 | let an_integer = 5i32; // Suffix annotation [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/chapters/c02.rs:31:7 [INFO] [stderr] | [INFO] [stderr] 31 | let default_float = 3.0; // `f64` [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_integer` [INFO] [stderr] --> src/chapters/c02.rs:32:7 [INFO] [stderr] | [INFO] [stderr] 32 | let default_integer = 7; // `i32` [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_integer` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/chapters/c02.rs:35:7 [INFO] [stderr] | [INFO] [stderr] 35 | let mut inferred_type = 12; // Type i64 is inferred from another line [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/chapters/c02.rs:36:3 [INFO] [stderr] | [INFO] [stderr] 36 | inferred_type = 4294967296i64; [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/chapters/c02.rs:39:7 [INFO] [stderr] | [INFO] [stderr] 39 | let mut mutable = 12; // Mutable `i32` [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/chapters/c02.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | mutable = 21; [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/chapters/c02.rs:46:7 [INFO] [stderr] | [INFO] [stderr] 46 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: function `c_liKe_enums` should have a snake case name [INFO] [stderr] --> src/chapters/c03.rs:281:8 [INFO] [stderr] | [INFO] [stderr] 281 | pub fn c_liKe_enums() { [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `c_li_ke_enums` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `"docker" "inspect" "2350c72e1272487bc0df2629277652981ff0e33a0d685739066cf2ebb63e3643"` [INFO] running `"docker" "rm" "-f" "2350c72e1272487bc0df2629277652981ff0e33a0d685739066cf2ebb63e3643"` [INFO] [stdout] 2350c72e1272487bc0df2629277652981ff0e33a0d685739066cf2ebb63e3643 [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" "+1.44.0" "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] 480f4da2beba559a0ca1974512382c792b9872c2b7afada7bfa0ff871cddb95c [INFO] running `"docker" "start" "-a" "480f4da2beba559a0ca1974512382c792b9872c2b7afada7bfa0ff871cddb95c"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/chapters/c02.rs:25:7 [INFO] [stderr] | [INFO] [stderr] 25 | 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/chapters/c02.rs:27:7 [INFO] [stderr] | [INFO] [stderr] 27 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_integer` [INFO] [stderr] --> src/chapters/c02.rs:28:7 [INFO] [stderr] | [INFO] [stderr] 28 | let an_integer = 5i32; // Suffix annotation [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/chapters/c02.rs:31:7 [INFO] [stderr] | [INFO] [stderr] 31 | let default_float = 3.0; // `f64` [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_integer` [INFO] [stderr] --> src/chapters/c02.rs:32:7 [INFO] [stderr] | [INFO] [stderr] 32 | let default_integer = 7; // `i32` [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_integer` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/chapters/c02.rs:35:7 [INFO] [stderr] | [INFO] [stderr] 35 | let mut inferred_type = 12; // Type i64 is inferred from another line [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/chapters/c02.rs:36:3 [INFO] [stderr] | [INFO] [stderr] 36 | inferred_type = 4294967296i64; [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/chapters/c02.rs:39:7 [INFO] [stderr] | [INFO] [stderr] 39 | let mut mutable = 12; // Mutable `i32` [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/chapters/c02.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | mutable = 21; [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/chapters/c02.rs:46:7 [INFO] [stderr] | [INFO] [stderr] 46 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: function `c_liKe_enums` should have a snake case name [INFO] [stderr] --> src/chapters/c03.rs:281:8 [INFO] [stderr] | [INFO] [stderr] 281 | pub fn c_liKe_enums() { [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `c_li_ke_enums` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.51s [INFO] running `"docker" "inspect" "480f4da2beba559a0ca1974512382c792b9872c2b7afada7bfa0ff871cddb95c"` [INFO] running `"docker" "rm" "-f" "480f4da2beba559a0ca1974512382c792b9872c2b7afada7bfa0ff871cddb95c"` [INFO] [stdout] 480f4da2beba559a0ca1974512382c792b9872c2b7afada7bfa0ff871cddb95c [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" "+1.44.0" "test" "--frozen"` [INFO] [stdout] aafe3e3819f453086f600c4d3c2abe6194737e77daa4a1b60522c68603a38c10 [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" "aafe3e3819f453086f600c4d3c2abe6194737e77daa4a1b60522c68603a38c10"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused variable: `logical` [INFO] [stderr] --> src/chapters/c02.rs:25:7 [INFO] [stderr] | [INFO] [stderr] 25 | 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/chapters/c02.rs:27:7 [INFO] [stderr] | [INFO] [stderr] 27 | let a_float: f64 = 1.0; // Regular annotation [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_a_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `an_integer` [INFO] [stderr] --> src/chapters/c02.rs:28:7 [INFO] [stderr] | [INFO] [stderr] 28 | let an_integer = 5i32; // Suffix annotation [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_an_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/chapters/c02.rs:31:7 [INFO] [stderr] | [INFO] [stderr] 31 | let default_float = 3.0; // `f64` [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_integer` [INFO] [stderr] --> src/chapters/c02.rs:32:7 [INFO] [stderr] | [INFO] [stderr] 32 | let default_integer = 7; // `i32` [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_integer` [INFO] [stderr] [INFO] [stderr] warning: variable `inferred_type` is assigned to, but never used [INFO] [stderr] --> src/chapters/c02.rs:35:7 [INFO] [stderr] | [INFO] [stderr] 35 | let mut inferred_type = 12; // Type i64 is inferred from another line [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/chapters/c02.rs:36:3 [INFO] [stderr] | [INFO] [stderr] 36 | inferred_type = 4294967296i64; [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/chapters/c02.rs:39:7 [INFO] [stderr] | [INFO] [stderr] 39 | let mut mutable = 12; // Mutable `i32` [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/chapters/c02.rs:40:3 [INFO] [stderr] | [INFO] [stderr] 40 | mutable = 21; [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/chapters/c02.rs:46:7 [INFO] [stderr] | [INFO] [stderr] 46 | let mutable = true; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mutable` [INFO] [stderr] [INFO] [stderr] warning: function `c_liKe_enums` should have a snake case name [INFO] [stderr] --> src/chapters/c03.rs:281:8 [INFO] [stderr] | [INFO] [stderr] 281 | pub fn c_liKe_enums() { [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `c_li_ke_enums` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_by_example-4b6cb13563ecce2a [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" "aafe3e3819f453086f600c4d3c2abe6194737e77daa4a1b60522c68603a38c10"` [INFO] running `"docker" "rm" "-f" "aafe3e3819f453086f600c4d3c2abe6194737e77daa4a1b60522c68603a38c10"` [INFO] [stdout] aafe3e3819f453086f600c4d3c2abe6194737e77daa4a1b60522c68603a38c10