[INFO] updating cached repository https://github.com/mathieu-anderson/rust_variables_and_types [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] efdcd87693da19018237ecb002882e1974a099e8 [INFO] testing mathieu-anderson/rust_variables_and_types against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmathieu-anderson%2Frust_variables_and_types" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mathieu-anderson/rust_variables_and_types 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/mathieu-anderson/rust_variables_and_types [INFO] finished tweaking git repo https://github.com/mathieu-anderson/rust_variables_and_types [INFO] tweaked toml for git repo https://github.com/mathieu-anderson/rust_variables_and_types written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/mathieu-anderson/rust_variables_and_types 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 510162017edbef3eb0ae0b3a5b9f21c521d10c245610a61340d5bd57a34a75dc [INFO] running `"docker" "start" "-a" "510162017edbef3eb0ae0b3a5b9f21c521d10c245610a61340d5bd57a34a75dc"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust_variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable `default_integer` is assigned to, but never used [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut default_integer = 56; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_default_integer` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `default_integer` is never read [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | default_integer = -45; [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: unused variable: `defined_integer` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let default_float = 2.0; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var` [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let char_var = 'k'; [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var_emoji` [INFO] [stderr] --> src/main.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let char_var_emoji = '😵'; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var_emoji` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:51:16 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr` [INFO] [stderr] --> src/main.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | let arr = [1, 23, 67]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `months` [INFO] [stderr] --> src/main.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let months: [&str; 3] = ["January", "February", "March"]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_months` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [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 0.56s [INFO] running `"docker" "inspect" "510162017edbef3eb0ae0b3a5b9f21c521d10c245610a61340d5bd57a34a75dc"` [INFO] running `"docker" "rm" "-f" "510162017edbef3eb0ae0b3a5b9f21c521d10c245610a61340d5bd57a34a75dc"` [INFO] [stdout] 510162017edbef3eb0ae0b3a5b9f21c521d10c245610a61340d5bd57a34a75dc [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 29dbbe9af4262df7397fc9cb312241c69312920460b7a37a4312aefc80d71768 [INFO] running `"docker" "start" "-a" "29dbbe9af4262df7397fc9cb312241c69312920460b7a37a4312aefc80d71768"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rust_variables v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable `default_integer` is assigned to, but never used [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut default_integer = 56; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_default_integer` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `default_integer` is never read [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | default_integer = -45; [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: unused variable: `defined_integer` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let default_float = 2.0; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var` [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let char_var = 'k'; [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var_emoji` [INFO] [stderr] --> src/main.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let char_var_emoji = '😵'; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var_emoji` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:51:16 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr` [INFO] [stderr] --> src/main.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | let arr = [1, 23, 67]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `months` [INFO] [stderr] --> src/main.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let months: [&str; 3] = ["January", "February", "March"]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_months` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [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 0.55s [INFO] running `"docker" "inspect" "29dbbe9af4262df7397fc9cb312241c69312920460b7a37a4312aefc80d71768"` [INFO] running `"docker" "rm" "-f" "29dbbe9af4262df7397fc9cb312241c69312920460b7a37a4312aefc80d71768"` [INFO] [stdout] 29dbbe9af4262df7397fc9cb312241c69312920460b7a37a4312aefc80d71768 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 81a81cba57def200a7fd7c781daa51acc3c47587069cdac1052c7c13007cdbb6 [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" "81a81cba57def200a7fd7c781daa51acc3c47587069cdac1052c7c13007cdbb6"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: variable `default_integer` is assigned to, but never used [INFO] [stderr] --> src/main.rs:34:9 [INFO] [stderr] | [INFO] [stderr] 34 | let mut default_integer = 56; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_default_integer` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `default_integer` is never read [INFO] [stderr] --> src/main.rs:35:5 [INFO] [stderr] | [INFO] [stderr] 35 | default_integer = -45; [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: unused variable: `defined_integer` [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_integer` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `default_float` [INFO] [stderr] --> src/main.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let default_float = 2.0; [INFO] [stderr] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_default_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var` [INFO] [stderr] --> src/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | let char_var = 'k'; [INFO] [stderr] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char_var_emoji` [INFO] [stderr] --> src/main.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | let char_var_emoji = '😵'; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_char_var_emoji` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `z` [INFO] [stderr] --> src/main.rs:51:16 [INFO] [stderr] | [INFO] [stderr] 51 | let (x, y, z) = tup; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `arr` [INFO] [stderr] --> src/main.rs:58:9 [INFO] [stderr] | [INFO] [stderr] 58 | let arr = [1, 23, 67]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_arr` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `months` [INFO] [stderr] --> src/main.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let months: [&str; 3] = ["January", "February", "March"]; [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_months` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let mut defined_integer: u64 = 76; [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 0.01s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_variables-26b86b2ba4d4ce13 [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" "81a81cba57def200a7fd7c781daa51acc3c47587069cdac1052c7c13007cdbb6"` [INFO] running `"docker" "rm" "-f" "81a81cba57def200a7fd7c781daa51acc3c47587069cdac1052c7c13007cdbb6"` [INFO] [stdout] 81a81cba57def200a7fd7c781daa51acc3c47587069cdac1052c7c13007cdbb6