[INFO] cloning repository https://github.com/FedorNemira/rust_learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FedorNemira/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedorNemira%2Frust_learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedorNemira%2Frust_learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0a935c9ac240430ae9257ce7d3416fc994d80d38 [INFO] testing FedorNemira/rust_learning against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFedorNemira%2Frust_learning" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FedorNemira/rust_learning on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FedorNemira/rust_learning [INFO] finished tweaking git repo https://github.com/FedorNemira/rust_learning [INFO] tweaked toml for git repo https://github.com/FedorNemira/rust_learning written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/FedorNemira/rust_learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8f4249e37202bc81caf3c1ca4b51334b81dd9f3db5c9852656f801499b79e302 [INFO] running `Command { std: "docker" "start" "-a" "8f4249e37202bc81caf3c1ca4b51334b81dd9f3db5c9852656f801499b79e302", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8f4249e37202bc81caf3c1ca4b51334b81dd9f3db5c9852656f801499b79e302", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f4249e37202bc81caf3c1ca4b51334b81dd9f3db5c9852656f801499b79e302", kill_on_drop: false }` [INFO] [stdout] 8f4249e37202bc81caf3c1ca4b51334b81dd9f3db5c9852656f801499b79e302 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0b464a4b9294a9589e5724bcc8e395911e8d23bd0a51d648217f10c852c47fe3 [INFO] running `Command { std: "docker" "start" "-a" "0b464a4b9294a9589e5724bcc8e395911e8d23bd0a51d648217f10c852c47fe3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling common_collections v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `employees` [INFO] [stdout] --> src/main.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | let mut employees: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_employees` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let mut employees: Vec = Vec::new(); [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: `calc_middle` [INFO] [stdout] --> src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn calc_middle() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pig_latin` [INFO] [stdout] --> src/main.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn pig_latin(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.52s [INFO] running `Command { std: "docker" "inspect" "0b464a4b9294a9589e5724bcc8e395911e8d23bd0a51d648217f10c852c47fe3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b464a4b9294a9589e5724bcc8e395911e8d23bd0a51d648217f10c852c47fe3", kill_on_drop: false }` [INFO] [stdout] 0b464a4b9294a9589e5724bcc8e395911e8d23bd0a51d648217f10c852c47fe3 [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b21f216e1c47689734f4588d2f4c431971971443b5fc0b1f6a3d0c0c1b49b56b [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" "b21f216e1c47689734f4588d2f4c431971971443b5fc0b1f6a3d0c0c1b49b56b", kill_on_drop: false }` [INFO] [stderr] Compiling common_collections v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `employees` [INFO] [stdout] --> src/main.rs:81:13 [INFO] [stdout] | [INFO] [stdout] 81 | let mut employees: Vec = Vec::new(); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_employees` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | let mut employees: Vec = Vec::new(); [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: `calc_middle` [INFO] [stdout] --> src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn calc_middle() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pig_latin` [INFO] [stdout] --> src/main.rs:54:4 [INFO] [stdout] | [INFO] [stdout] 54 | fn pig_latin(){ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.80s [INFO] running `Command { std: "docker" "inspect" "b21f216e1c47689734f4588d2f4c431971971443b5fc0b1f6a3d0c0c1b49b56b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b21f216e1c47689734f4588d2f4c431971971443b5fc0b1f6a3d0c0c1b49b56b", kill_on_drop: false }` [INFO] [stdout] b21f216e1c47689734f4588d2f4c431971971443b5fc0b1f6a3d0c0c1b49b56b [INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 13affa26546b6d3f9c0877e89b51b6bf4392f03c6880c076692788b5967c29e7 [INFO] running `Command { std: "docker" "start" "-a" "13affa26546b6d3f9c0877e89b51b6bf4392f03c6880c076692788b5967c29e7", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused variable: `employees` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:81:13 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 81 | let mut employees: Vec = Vec::new(); [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_employees` [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:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | let mut employees: Vec = Vec::new(); [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: `calc_middle` [INFO] [stderr] --> src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn calc_middle() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `pig_latin` [INFO] [stderr] --> src/main.rs:54:4 [INFO] [stderr] | [INFO] [stderr] 54 | fn pig_latin(){ [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `common_collections` (bin "common_collections" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/common_collections-3d2d0c78b88e1a5b) [INFO] running `Command { std: "docker" "inspect" "13affa26546b6d3f9c0877e89b51b6bf4392f03c6880c076692788b5967c29e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13affa26546b6d3f9c0877e89b51b6bf4392f03c6880c076692788b5967c29e7", kill_on_drop: false }` [INFO] [stdout] 13affa26546b6d3f9c0877e89b51b6bf4392f03c6880c076692788b5967c29e7