[INFO] cloning repository https://github.com/musicandelectronics/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/musicandelectronics/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmusicandelectronics%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmusicandelectronics%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d0cfce0be8afb79515398397da506b3bcfa5601
[INFO] testing musicandelectronics/rust_practice against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmusicandelectronics%2Frust_practice" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/musicandelectronics/rust_practice on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/musicandelectronics/rust_practice
[INFO] finished tweaking git repo https://github.com/musicandelectronics/rust_practice
[INFO] tweaked toml for git repo https://github.com/musicandelectronics/rust_practice written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/musicandelectronics/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3e1175dcf2fb4a8bcff61a65ed73cf75fb0ca398bceb4c025cc1ccd591274a7
[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" "d3e1175dcf2fb4a8bcff61a65ed73cf75fb0ca398bceb4c025cc1ccd591274a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e1175dcf2fb4a8bcff61a65ed73cf75fb0ca398bceb4c025cc1ccd591274a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e1175dcf2fb4a8bcff61a65ed73cf75fb0ca398bceb4c025cc1ccd591274a7", kill_on_drop: false }`
[INFO] [stdout] d3e1175dcf2fb4a8bcff61a65ed73cf75fb0ca398bceb4c025cc1ccd591274a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b45958686973642493188397a45c359ba7f10a36ec3f895e2762ff0e07668bb0
[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" "b45958686973642493188397a45c359ba7f10a36ec3f895e2762ff0e07668bb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling controls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]  --> src/complexprac.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stdout]   |           ^ help: convert the identifier to snake case: `r`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]  --> src/complexprac.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stdout]   |                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b45958686973642493188397a45c359ba7f10a36ec3f895e2762ff0e07668bb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45958686973642493188397a45c359ba7f10a36ec3f895e2762ff0e07668bb0", kill_on_drop: false }`
[INFO] [stdout] b45958686973642493188397a45c359ba7f10a36ec3f895e2762ff0e07668bb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26f97e99e298086866150781c7b75785b895a2270bdf24be479be266216fcde9
[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" "26f97e99e298086866150781c7b75785b895a2270bdf24be479be266216fcde9", kill_on_drop: false }`
[INFO] [stderr]    Compiling controls v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]  --> src/complexprac.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stdout]   |           ^ help: convert the identifier to snake case: `r`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]  --> src/complexprac.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stdout]   |                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "26f97e99e298086866150781c7b75785b895a2270bdf24be479be266216fcde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26f97e99e298086866150781c7b75785b895a2270bdf24be479be266216fcde9", kill_on_drop: false }`
[INFO] [stdout] 26f97e99e298086866150781c7b75785b895a2270bdf24be479be266216fcde9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e91f8c11fd63bd2718d646b19ef323bc7462c129bcc10fa0c3f1acd2cb189d4d
[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" "e91f8c11fd63bd2718d646b19ef323bc7462c129bcc10fa0c3f1acd2cb189d4d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable `R` should have a snake case name
[INFO] [stderr]  --> src/complexprac.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stderr]   |           ^ help: convert the identifier to snake case: `r`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `I` should have a snake case name
[INFO] [stderr]  --> src/complexprac.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 |   fn new (R: i32, I: i32) -> Complex
[INFO] [stderr]   |                   ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/controls-3c01b4836c223b5a
[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" "e91f8c11fd63bd2718d646b19ef323bc7462c129bcc10fa0c3f1acd2cb189d4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e91f8c11fd63bd2718d646b19ef323bc7462c129bcc10fa0c3f1acd2cb189d4d", kill_on_drop: false }`
[INFO] [stdout] e91f8c11fd63bd2718d646b19ef323bc7462c129bcc10fa0c3f1acd2cb189d4d