[INFO] cloning repository https://github.com/xrisyz/culculator_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xrisyz/culculator_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrisyz%2Fculculator_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrisyz%2Fculculator_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0f9e7cb907e177c409c39671b26aa88904e862e
[INFO] testing xrisyz/culculator_rs against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxrisyz%2Fculculator_rs" "/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/xrisyz/culculator_rs on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xrisyz/culculator_rs
[INFO] finished tweaking git repo https://github.com/xrisyz/culculator_rs
[INFO] tweaked toml for git repo https://github.com/xrisyz/culculator_rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/xrisyz/culculator_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 6d6a38f6a456930e768691c5fab0fb605b9ac435b32bde5c9f15ba7d99a3ee9d
[INFO] running `Command { std: "docker" "start" "-a" "6d6a38f6a456930e768691c5fab0fb605b9ac435b32bde5c9f15ba7d99a3ee9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d6a38f6a456930e768691c5fab0fb605b9ac435b32bde5c9f15ba7d99a3ee9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6a38f6a456930e768691c5fab0fb605b9ac435b32bde5c9f15ba7d99a3ee9d", kill_on_drop: false }`
[INFO] [stdout] 6d6a38f6a456930e768691c5fab0fb605b9ac435b32bde5c9f15ba7d99a3ee9d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79b8312da49b3e41af974e49b44c70f2b7811a4cabcbb8b1a5ac8a90a18b049b
[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" "79b8312da49b3e41af974e49b44c70f2b7811a4cabcbb8b1a5ac8a90a18b049b", kill_on_drop: false }`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Equation`
[INFO] [stdout]  --> src/operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Equation {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "79b8312da49b3e41af974e49b44c70f2b7811a4cabcbb8b1a5ac8a90a18b049b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79b8312da49b3e41af974e49b44c70f2b7811a4cabcbb8b1a5ac8a90a18b049b", kill_on_drop: false }`
[INFO] [stdout] 79b8312da49b3e41af974e49b44c70f2b7811a4cabcbb8b1a5ac8a90a18b049b
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 659d8e81eaf7681a5c692c707e663629271650a8df3e20073fb709b220ce0955
[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" "659d8e81eaf7681a5c692c707e663629271650a8df3e20073fb709b220ce0955", kill_on_drop: false }`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Equation`
[INFO] [stdout]  --> src/operator.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Equation {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testAddition` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn testAddition() {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `test_addition`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "659d8e81eaf7681a5c692c707e663629271650a8df3e20073fb709b220ce0955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "659d8e81eaf7681a5c692c707e663629271650a8df3e20073fb709b220ce0955", kill_on_drop: false }`
[INFO] [stdout] 659d8e81eaf7681a5c692c707e663629271650a8df3e20073fb709b220ce0955
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] dbc1600ee0d88bfc252d886e36a77a88b1db9097946db9ea6ae6066e51dd0ce6
[INFO] running `Command { std: "docker" "start" "-a" "dbc1600ee0d88bfc252d886e36a77a88b1db9097946db9ea6ae6066e51dd0ce6", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `Equation`
[INFO] [stderr]  --> src/operator.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Equation {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `testAddition` should have a snake case name
[INFO] [stderr]   --> src/main.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn testAddition() {
[INFO] [stderr]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `test_addition`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/calculator-08ca91ee0bad46f3
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test testAddition ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbc1600ee0d88bfc252d886e36a77a88b1db9097946db9ea6ae6066e51dd0ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbc1600ee0d88bfc252d886e36a77a88b1db9097946db9ea6ae6066e51dd0ce6", kill_on_drop: false }`
[INFO] [stdout] dbc1600ee0d88bfc252d886e36a77a88b1db9097946db9ea6ae6066e51dd0ce6