[INFO] cloning repository https://github.com/BookOwl/rust-calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BookOwl/rust-calculator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBookOwl%2Frust-calculator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBookOwl%2Frust-calculator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de77ce1328f12ab7a8d9860336a7f5cb728be8d2
[INFO] testing BookOwl/rust-calculator 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%2FBookOwl%2Frust-calculator" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BookOwl/rust-calculator 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/BookOwl/rust-calculator
[INFO] finished tweaking git repo https://github.com/BookOwl/rust-calculator
[INFO] tweaked toml for git repo https://github.com/BookOwl/rust-calculator written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BookOwl/rust-calculator 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.15
[INFO] [stderr]   Downloaded thread_local v0.2.6
[INFO] [stderr]   Downloaded aho-corasick v0.5.2
[INFO] [stderr]   Downloaded regex-syntax v0.3.5
[INFO] [stderr]   Downloaded regex v0.1.75
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] ea34f3f7bd713ad69ddeb167a45ac2236f4dc09e4777b5547f7449bc2526fd03
[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" "ea34f3f7bd713ad69ddeb167a45ac2236f4dc09e4777b5547f7449bc2526fd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea34f3f7bd713ad69ddeb167a45ac2236f4dc09e4777b5547f7449bc2526fd03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea34f3f7bd713ad69ddeb167a45ac2236f4dc09e4777b5547f7449bc2526fd03", kill_on_drop: false }`
[INFO] [stdout] ea34f3f7bd713ad69ddeb167a45ac2236f4dc09e4777b5547f7449bc2526fd03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 5ba25d414fbb26d591612092137f87b89a176d74da40e8c4f8ceff7e58c82d8a
[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" "5ba25d414fbb26d591612092137f87b89a176d74da40e8c4f8ceff7e58c82d8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.15
[INFO] [stderr]    Compiling regex-syntax v0.3.5
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.2.6
[INFO] [stderr]    Compiling aho-corasick v0.5.2
[INFO] [stderr]    Compiling regex v0.1.75
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     lazy_static! {
[INFO] [stdout] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     lazy_static! {
[INFO] [stdout] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/main.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     while !(input.trim_left().is_empty()) {
[INFO] [stdout]    |                   ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/main.rs:39:23
[INFO] [stdout]    |
[INFO] [stdout] 39 |         input = input.trim_left().to_string();
[INFO] [stdout]    |                       ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/main.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |             input.trim_left_matches(|c| c == '+' ||
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.06s
[INFO] running `Command { std: "docker" "inspect" "5ba25d414fbb26d591612092137f87b89a176d74da40e8c4f8ceff7e58c82d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ba25d414fbb26d591612092137f87b89a176d74da40e8c4f8ceff7e58c82d8a", kill_on_drop: false }`
[INFO] [stdout] 5ba25d414fbb26d591612092137f87b89a176d74da40e8c4f8ceff7e58c82d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8cf35f6148cb1522dcd8f4e4b7e60f29934f998b69fc84240fcc037e77ca955b
[INFO] running `Command { std: "docker" "start" "-a" "8cf35f6148cb1522dcd8f4e4b7e60f29934f998b69fc84240fcc037e77ca955b", kill_on_drop: false }`
[INFO] [stderr]    Compiling calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     lazy_static! {
[INFO] [stdout] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     lazy_static! {
[INFO] [stdout] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stdout] 36 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/main.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     while !(input.trim_left().is_empty()) {
[INFO] [stdout]    |                   ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]   --> src/main.rs:39:23
[INFO] [stdout]    |
[INFO] [stdout] 39 |         input = input.trim_left().to_string();
[INFO] [stdout]    |                       ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/main.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |             input.trim_left_matches(|c| c == '+' ||
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "8cf35f6148cb1522dcd8f4e4b7e60f29934f998b69fc84240fcc037e77ca955b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf35f6148cb1522dcd8f4e4b7e60f29934f998b69fc84240fcc037e77ca955b", kill_on_drop: false }`
[INFO] [stdout] 8cf35f6148cb1522dcd8f4e4b7e60f29934f998b69fc84240fcc037e77ca955b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] b9994c6781def94de21ca6cc796ea647b588a885ff23d520afd3a61ab3e76f9c
[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" "b9994c6781def94de21ca6cc796ea647b588a885ff23d520afd3a61ab3e76f9c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:34:5
[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] 34 | /     lazy_static! {
[INFO] [stdout] 
[INFO] [stderr] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stderr] 36 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 | /     lazy_static! {
[INFO] [stderr] 35 | |         static ref NUMBER_RE: Regex = Regex::new(r"^[0-9]+").unwrap();
[INFO] [stderr] 36 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stderr]   --> src/main.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     while !(input.trim_left().is_empty()) {
[INFO] [stderr]    |                   ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stderr]   --> src/main.rs:39:23
[INFO] [stderr]    |
[INFO] [stderr] 39 |         input = input.trim_left().to_string();
[INFO] [stderr]    |                       ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]   --> src/main.rs:54:19
[INFO] [stderr]    |
[INFO] [stderr] 54 |             input.trim_left_matches(|c| c == '+' ||
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: `calculator` (bin "calculator" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/calculator-6ebacd7d9bc8db2f)
[INFO] running `Command { std: "docker" "inspect" "b9994c6781def94de21ca6cc796ea647b588a885ff23d520afd3a61ab3e76f9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9994c6781def94de21ca6cc796ea647b588a885ff23d520afd3a61ab3e76f9c", kill_on_drop: false }`
[INFO] [stdout] b9994c6781def94de21ca6cc796ea647b588a885ff23d520afd3a61ab3e76f9c