[INFO] cloning repository https://github.com/jtfm/highest_and_lowest [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jtfm/highest_and_lowest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtfm%2Fhighest_and_lowest", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtfm%2Fhighest_and_lowest'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e699b78586262e345e8f5c98e4ad96abee36e197 [INFO] testing jtfm/highest_and_lowest against beta-2021-09-08 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjtfm%2Fhighest_and_lowest" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jtfm/highest_and_lowest on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jtfm/highest_and_lowest [INFO] finished tweaking git repo https://github.com/jtfm/highest_and_lowest [INFO] tweaked toml for git repo https://github.com/jtfm/highest_and_lowest written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/jtfm/highest_and_lowest already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8febda020518f4cb6648bb8e33f1715ea976cc4ea0a5df670e201b89be8ecc89 [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" "8febda020518f4cb6648bb8e33f1715ea976cc4ea0a5df670e201b89be8ecc89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8febda020518f4cb6648bb8e33f1715ea976cc4ea0a5df670e201b89be8ecc89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8febda020518f4cb6648bb8e33f1715ea976cc4ea0a5df670e201b89be8ecc89", kill_on_drop: false }` [INFO] [stdout] 8febda020518f4cb6648bb8e33f1715ea976cc4ea0a5df670e201b89be8ecc89 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 16d8531a06bcf7727efd04c6fbfb4f138a0ad2db5a25674165992636a155df9b [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" "16d8531a06bcf7727efd04c6fbfb4f138a0ad2db5a25674165992636a155df9b", kill_on_drop: false }` [INFO] [stderr] Compiling highest_and_lowest v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let parsed = numbers_split.map(|x| str::parse::(x)); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut high: i32 = 0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let mut low: i32 = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let mut high: i32 = 0; [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut low: i32 = 0; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `Command { std: "docker" "inspect" "16d8531a06bcf7727efd04c6fbfb4f138a0ad2db5a25674165992636a155df9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16d8531a06bcf7727efd04c6fbfb4f138a0ad2db5a25674165992636a155df9b", kill_on_drop: false }` [INFO] [stdout] 16d8531a06bcf7727efd04c6fbfb4f138a0ad2db5a25674165992636a155df9b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c28e5aea0a4bd4bfee3e68866957c0c9a92c7d16c740231eb718f1a153ab9a42 [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" "c28e5aea0a4bd4bfee3e68866957c0c9a92c7d16c740231eb718f1a153ab9a42", kill_on_drop: false }` [INFO] [stderr] Compiling highest_and_lowest v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `parsed` [INFO] [stdout] --> src/main.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let parsed = numbers_split.map(|x| str::parse::(x)); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `high` [INFO] [stdout] --> src/main.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut high: i32 = 0; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `low` [INFO] [stdout] --> src/main.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | let mut low: i32 = 0; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let mut high: i32 = 0; [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let mut low: i32 = 0; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "c28e5aea0a4bd4bfee3e68866957c0c9a92c7d16c740231eb718f1a153ab9a42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c28e5aea0a4bd4bfee3e68866957c0c9a92c7d16c740231eb718f1a153ab9a42", kill_on_drop: false }` [INFO] [stdout] c28e5aea0a4bd4bfee3e68866957c0c9a92c7d16c740231eb718f1a153ab9a42 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1ba96b0372092b0b1554468eda2c85dd86f11928df11566d5fa938a9b682a6bf [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" "1ba96b0372092b0b1554468eda2c85dd86f11928df11566d5fa938a9b682a6bf", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `parsed` [INFO] [stderr] --> src/main.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let parsed = numbers_split.map(|x| str::parse::(x)); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_parsed` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `high` [INFO] [stderr] --> src/main.rs:11:13 [INFO] [stderr] | [INFO] [stderr] 11 | let mut high: i32 = 0; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_high` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `low` [INFO] [stderr] --> src/main.rs:12:13 [INFO] [stderr] | [INFO] [stderr] 12 | let mut low: i32 = 0; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_low` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:11:9 [INFO] [stderr] | [INFO] [stderr] 11 | let mut high: i32 = 0; [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let mut low: i32 = 0; [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `highest_and_lowest` (bin "highest_and_lowest" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/highest_and_lowest-909a2572ed8d2094) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1ba96b0372092b0b1554468eda2c85dd86f11928df11566d5fa938a9b682a6bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ba96b0372092b0b1554468eda2c85dd86f11928df11566d5fa938a9b682a6bf", kill_on_drop: false }` [INFO] [stdout] 1ba96b0372092b0b1554468eda2c85dd86f11928df11566d5fa938a9b682a6bf