[INFO] updating cached repository https://github.com/yutokun/Learn-Rust [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4bac29d1e5292b9738125a5893f767c6b0c01966 [INFO] testing yutokun/Learn-Rust against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyutokun%2FLearn-Rust" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yutokun/Learn-Rust on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yutokun/Learn-Rust [INFO] finished tweaking git repo https://github.com/yutokun/Learn-Rust [INFO] tweaked toml for git repo https://github.com/yutokun/Learn-Rust written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/yutokun/Learn-Rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7f6616c852c4ba9084c6702702d89d18f7e1c9823c6e4c56ae78d4b1b0f05ede [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7f6616c852c4ba9084c6702702d89d18f7e1c9823c6e4c56ae78d4b1b0f05ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7f6616c852c4ba9084c6702702d89d18f7e1c9823c6e4c56ae78d4b1b0f05ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f6616c852c4ba9084c6702702d89d18f7e1c9823c6e4c56ae78d4b1b0f05ede", kill_on_drop: false }` [INFO] [stdout] 7f6616c852c4ba9084c6702702d89d18f7e1c9823c6e4c56ae78d4b1b0f05ede [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d2e81bca483d60533bef04492f561cbacc588f5a263a2a041169d216fb848ea9 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "d2e81bca483d60533bef04492f561cbacc588f5a263a2a041169d216fb848ea9", kill_on_drop: false }` [INFO] [stderr] Compiling Rust-101 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:40:6 [INFO] [stdout] | [INFO] [stdout] 40 | let mut m = 1 + 2; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizzbuzz` [INFO] [stdout] --> src/main.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn fizzbuzz(n: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `square_sum` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn square_sum(n: isize) -> isize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `variable_binding` [INFO] [stdout] --> src/main.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn variable_binding() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `string_types` [INFO] [stdout] --> src/main.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn string_types() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tuple` [INFO] [stdout] --> src/main.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn tuple() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Rust_101` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `rust_101` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.74s [INFO] running `Command { std: "docker" "inspect" "d2e81bca483d60533bef04492f561cbacc588f5a263a2a041169d216fb848ea9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2e81bca483d60533bef04492f561cbacc588f5a263a2a041169d216fb848ea9", kill_on_drop: false }` [INFO] [stdout] d2e81bca483d60533bef04492f561cbacc588f5a263a2a041169d216fb848ea9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b26492b8734fcc5866011b647921e8b7c6ccf0c23d0d5a8968407027c49acd20 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b26492b8734fcc5866011b647921e8b7c6ccf0c23d0d5a8968407027c49acd20", kill_on_drop: false }` [INFO] [stderr] Compiling Rust-101 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:40:6 [INFO] [stdout] | [INFO] [stdout] 40 | let mut m = 1 + 2; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `fizzbuzz` [INFO] [stdout] --> src/main.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn fizzbuzz(n: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `square_sum` [INFO] [stdout] --> src/main.rs:26:4 [INFO] [stdout] | [INFO] [stdout] 26 | fn square_sum(n: isize) -> isize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `variable_binding` [INFO] [stdout] --> src/main.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn variable_binding() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `string_types` [INFO] [stdout] --> src/main.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn string_types() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `tuple` [INFO] [stdout] --> src/main.rs:61:4 [INFO] [stdout] | [INFO] [stdout] 61 | fn tuple() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Rust_101` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `rust_101` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.66s [INFO] running `Command { std: "docker" "inspect" "b26492b8734fcc5866011b647921e8b7c6ccf0c23d0d5a8968407027c49acd20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b26492b8734fcc5866011b647921e8b7c6ccf0c23d0d5a8968407027c49acd20", kill_on_drop: false }` [INFO] [stdout] b26492b8734fcc5866011b647921e8b7c6ccf0c23d0d5a8968407027c49acd20 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 83f7ee007e582cb41809f2d097804560aa9dbfa5f1bb7e3f4f4f683dce9bf569 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "83f7ee007e582cb41809f2d097804560aa9dbfa5f1bb7e3f4f4f683dce9bf569", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:40:6 [INFO] [stderr] | [INFO] [stderr] 40 | let mut m = 1 + 2; [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: function is never used: `fizzbuzz` [INFO] [stderr] --> src/main.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | fn fizzbuzz(n: usize) { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `square_sum` [INFO] [stderr] --> src/main.rs:26:4 [INFO] [stderr] | [INFO] [stderr] 26 | fn square_sum(n: isize) -> isize { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `variable_binding` [INFO] [stderr] --> src/main.rs:34:4 [INFO] [stderr] | [INFO] [stderr] 34 | fn variable_binding() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `string_types` [INFO] [stderr] --> src/main.rs:44:4 [INFO] [stderr] | [INFO] [stderr] 44 | fn string_types() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `tuple` [INFO] [stderr] --> src/main.rs:61:4 [INFO] [stderr] | [INFO] [stderr] 61 | fn tuple() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_101` 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_101` [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/Rust_101-fd1ff3eb090ac2fe [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 `Command { std: "docker" "inspect" "83f7ee007e582cb41809f2d097804560aa9dbfa5f1bb7e3f4f4f683dce9bf569", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83f7ee007e582cb41809f2d097804560aa9dbfa5f1bb7e3f4f4f683dce9bf569", kill_on_drop: false }` [INFO] [stdout] 83f7ee007e582cb41809f2d097804560aa9dbfa5f1bb7e3f4f4f683dce9bf569