[INFO] updating cached repository https://github.com/CollinValley/rust_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f43ee9bf1397a7e46b78a5a03bc6811988dfc58f [INFO] testing CollinValley/rust_practice against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCollinValley%2Frust_practice" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CollinValley/rust_practice on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CollinValley/rust_practice [INFO] finished tweaking git repo https://github.com/CollinValley/rust_practice [INFO] tweaked toml for git repo https://github.com/CollinValley/rust_practice written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/CollinValley/rust_practice already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 72fb925b200d04cd98adaa951c96b084ee851af1a0f396c6c40609f2f981d2a2 [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" "72fb925b200d04cd98adaa951c96b084ee851af1a0f396c6c40609f2f981d2a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "72fb925b200d04cd98adaa951c96b084ee851af1a0f396c6c40609f2f981d2a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72fb925b200d04cd98adaa951c96b084ee851af1a0f396c6c40609f2f981d2a2", kill_on_drop: false }` [INFO] [stdout] 72fb925b200d04cd98adaa951c96b084ee851af1a0f396c6c40609f2f981d2a2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ac7578b9411c46e317bfe977440a1b498cbffb43040d87af2379dba794d9eb8 [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" "5ac7578b9411c46e317bfe977440a1b498cbffb43040d87af2379dba794d9eb8", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-bigint v0.2.1 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling rust_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/chapter_11.rs:6:24 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated item 'core::str::::trim_right_matches': superseded by `trim_end_matches` [INFO] [stdout] --> src/chapter_10.rs:84:23 [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Extrema` [INFO] [stdout] --> src/chapter_9.rs:157:8 [INFO] [stdout] | [INFO] [stdout] 157 | struct Extrema<'elt> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `find_extrema` [INFO] [stdout] --> src/chapter_9.rs:162:4 [INFO] [stdout] | [INFO] [stdout] 162 | fn find_extrema<'s>(slice: &'s [i32]) -> Extrema<'s> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `say_hello` [INFO] [stdout] --> src/chapter_11.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `min` [INFO] [stdout] --> src/chapter_11.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn min(value1: T, value2: T) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dot` [INFO] [stdout] --> src/chapter_11.rs:199:4 [INFO] [stdout] | [INFO] [stdout] 199 | fn dot(v1: &[N], v2: &[N]) -> N [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.14s [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "5ac7578b9411c46e317bfe977440a1b498cbffb43040d87af2379dba794d9eb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ac7578b9411c46e317bfe977440a1b498cbffb43040d87af2379dba794d9eb8", kill_on_drop: false }` [INFO] [stdout] 5ac7578b9411c46e317bfe977440a1b498cbffb43040d87af2379dba794d9eb8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 7b2fb44306a5bc3d4b85dd10020e7e75ec3336746fd56089815dc8b0088a1bc8 [INFO] running `Command { std: "docker" "start" "-a" "7b2fb44306a5bc3d4b85dd10020e7e75ec3336746fd56089815dc8b0088a1bc8", kill_on_drop: false }` [INFO] [stderr] Compiling rust_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/chapter_11.rs:6:24 [INFO] [stdout] | [INFO] [stdout] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated item 'core::str::::trim_right_matches': superseded by `trim_end_matches` [INFO] [stdout] --> src/chapter_10.rs:84:23 [INFO] [stdout] | [INFO] [stdout] 84 | self.plural().trim_right_matches('s') [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` 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 1.65s [INFO] running `Command { std: "docker" "inspect" "7b2fb44306a5bc3d4b85dd10020e7e75ec3336746fd56089815dc8b0088a1bc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b2fb44306a5bc3d4b85dd10020e7e75ec3336746fd56089815dc8b0088a1bc8", kill_on_drop: false }` [INFO] [stdout] 7b2fb44306a5bc3d4b85dd10020e7e75ec3336746fd56089815dc8b0088a1bc8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 43dda9c50d7b055e4200539785affa23086618316e90300a5949e737f92445dd [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" "43dda9c50d7b055e4200539785affa23086618316e90300a5949e737f92445dd", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/chapter_11.rs:6:24 [INFO] [stderr] | [INFO] [stderr] 6 | fn say_hello(out: &mut Write) -> std::io::Result<()> { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn Write` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'core::str::::trim_right_matches': superseded by `trim_end_matches` [INFO] [stderr] --> src/chapter_10.rs:84:23 [INFO] [stderr] | [INFO] [stderr] 84 | self.plural().trim_right_matches('s') [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 7.46s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_practice-5c51961955702a66 [INFO] [stdout] [INFO] [stdout] running 16 tests [INFO] [stdout] test chapter_10::test_generic_enums ... ok [INFO] [stdout] test chapter_10::test_add_and_search_binary_tree ... ok [INFO] [stdout] test chapter_10::test_build_basic_tree ... ok [INFO] [stdout] test chapter_12::test_complex_negation ... ok [INFO] [stdout] test chapter_11::test_say_hello ... ok [INFO] [stdout] test chapter_10::test_rough_time_to_english ... ok [INFO] [stdout] test chapter_12::test_add_assign ... ok [INFO] [stdout] test chapter_12::test_eq ... ok [INFO] [stdout] test chapter_11::test_dot ... ok [INFO] [stdout] test chapter_10::test_timeunit ... ok [INFO] [stdout] test chapter_12::test_fmt_display ... ok [INFO] [stdout] test chapter_11::test_min ... ok [INFO] [stdout] test chapter_9::test_gqueue ... ok [INFO] [stdout] test chapter_9::test_find_extrema ... ok [INFO] [stdout] test chapter_12::test_complex_add ... ok [INFO] [stdout] test chapter_9::test_queue ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "43dda9c50d7b055e4200539785affa23086618316e90300a5949e737f92445dd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43dda9c50d7b055e4200539785affa23086618316e90300a5949e737f92445dd", kill_on_drop: false }` [INFO] [stdout] 43dda9c50d7b055e4200539785affa23086618316e90300a5949e737f92445dd