[INFO] cloning repository https://github.com/kuroega/rust_from_the_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kuroega/rust_from_the_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuroega%2Frust_from_the_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuroega%2Frust_from_the_book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a7f81d228dbf4042d3a2e02a087c307a20373d0d [INFO] testing kuroega/rust_from_the_book 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%2Fkuroega%2Frust_from_the_book" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kuroega/rust_from_the_book 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/kuroega/rust_from_the_book [INFO] finished tweaking git repo https://github.com/kuroega/rust_from_the_book [INFO] tweaked toml for git repo https://github.com/kuroega/rust_from_the_book written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/kuroega/rust_from_the_book 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] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3b96eb8b457cbb97f588a3b0f84921354086687ad86449df7d453686340d3c9e [INFO] running `Command { std: "docker" "start" "-a" "3b96eb8b457cbb97f588a3b0f84921354086687ad86449df7d453686340d3c9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b96eb8b457cbb97f588a3b0f84921354086687ad86449df7d453686340d3c9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b96eb8b457cbb97f588a3b0f84921354086687ad86449df7d453686340d3c9e", kill_on_drop: false }` [INFO] [stdout] 3b96eb8b457cbb97f588a3b0f84921354086687ad86449df7d453686340d3c9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 75bc77846a1a6180f7c5f255492be3778452897dcad6fdaba8d07144646771ec [INFO] running `Command { std: "docker" "start" "-a" "75bc77846a1a6180f7c5f255492be3778452897dcad6fdaba8d07144646771ec", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.51 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling learn-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.59s [INFO] running `Command { std: "docker" "inspect" "75bc77846a1a6180f7c5f255492be3778452897dcad6fdaba8d07144646771ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75bc77846a1a6180f7c5f255492be3778452897dcad6fdaba8d07144646771ec", kill_on_drop: false }` [INFO] [stdout] 75bc77846a1a6180f7c5f255492be3778452897dcad6fdaba8d07144646771ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 209af4e956c04dc1f1cacc883f99668aebc720f724e07332c2908b6a9d6aff41 [INFO] running `Command { std: "docker" "start" "-a" "209af4e956c04dc1f1cacc883f99668aebc720f724e07332c2908b6a9d6aff41", kill_on_drop: false }` [INFO] [stderr] Compiling learn-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `username` [INFO] [stdout] --> examples/struct_demo3.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | username: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `active` [INFO] [stdout] --> examples/struct_demo3.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | active: bool, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> examples/ownership_demo.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let s1 = gives_ownership(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> examples/ownership_demo.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let s3 = takes_and_gives_back(s2); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.93s [INFO] running `Command { std: "docker" "inspect" "209af4e956c04dc1f1cacc883f99668aebc720f724e07332c2908b6a9d6aff41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "209af4e956c04dc1f1cacc883f99668aebc720f724e07332c2908b6a9d6aff41", kill_on_drop: false }` [INFO] [stdout] 209af4e956c04dc1f1cacc883f99668aebc720f724e07332c2908b6a9d6aff41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9852844e2aef68d3686299f6458f371a8557666ac7dd36433baefc423bc90bf7 [INFO] running `Command { std: "docker" "start" "-a" "9852844e2aef68d3686299f6458f371a8557666ac7dd36433baefc423bc90bf7", kill_on_drop: false }` [INFO] [stderr] warning: field is never read: `username` [INFO] [stderr] --> examples/struct_demo3.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | username: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `active` [INFO] [stderr] --> examples/struct_demo3.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | active: bool, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> examples/ownership_demo.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let s1 = gives_ownership(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> examples/ownership_demo.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let s3 = takes_and_gives_back(s2); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stderr] [INFO] [stderr] warning: `learn-rust` (example "struct_demo3") generated 2 warnings [INFO] [stderr] warning: `learn-rust` (example "ownership_demo") generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/learn_rust-3959e0a976ed860a) [INFO] [stdout] running 1 test [INFO] [stdout] test tests::it_works ... 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] [stderr] Doc-tests learn_rust [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" "9852844e2aef68d3686299f6458f371a8557666ac7dd36433baefc423bc90bf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9852844e2aef68d3686299f6458f371a8557666ac7dd36433baefc423bc90bf7", kill_on_drop: false }` [INFO] [stdout] 9852844e2aef68d3686299f6458f371a8557666ac7dd36433baefc423bc90bf7