[INFO] cloning repository https://github.com/houyuanjie/learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/houyuanjie/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhouyuanjie%2Flearn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhouyuanjie%2Flearn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] bdf973035f2d238d67beb743a550873cb6b03124 [INFO] testing houyuanjie/learn_rust against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhouyuanjie%2Flearn_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/houyuanjie/learn_rust [INFO] finished tweaking git repo https://github.com/houyuanjie/learn_rust [INFO] tweaked toml for git repo https://github.com/houyuanjie/learn_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/houyuanjie/learn_rust on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/houyuanjie/learn_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 789ae32aeedb75515c0e15b79ca5b0d811256cd3b8719cf6a7aa9b14a8b13e61 [INFO] running `Command { std: "docker" "start" "-a" "789ae32aeedb75515c0e15b79ca5b0d811256cd3b8719cf6a7aa9b14a8b13e61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "789ae32aeedb75515c0e15b79ca5b0d811256cd3b8719cf6a7aa9b14a8b13e61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "789ae32aeedb75515c0e15b79ca5b0d811256cd3b8719cf6a7aa9b14a8b13e61", kill_on_drop: false }` [INFO] [stdout] 789ae32aeedb75515c0e15b79ca5b0d811256cd3b8719cf6a7aa9b14a8b13e61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eb2c9efd4b6e7947cabc77a387be9415c1b501516115cb0c2157f3aba9065bb5 [INFO] running `Command { std: "docker" "start" "-a" "eb2c9efd4b6e7947cabc77a387be9415c1b501516115cb0c2157f3aba9065bb5", kill_on_drop: false }` [INFO] [stderr] Compiling learn_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `List` is never used [INFO] [stdout] --> src/smart_pointers/boxes.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum List { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ref` is never constructed [INFO] [stdout] --> src/smart_pointers/deref.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Ref { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/smart_pointers/deref.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Ref { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 8 | fn new(x: T) -> Ref { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `Command { std: "docker" "inspect" "eb2c9efd4b6e7947cabc77a387be9415c1b501516115cb0c2157f3aba9065bb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb2c9efd4b6e7947cabc77a387be9415c1b501516115cb0c2157f3aba9065bb5", kill_on_drop: false }` [INFO] [stdout] eb2c9efd4b6e7947cabc77a387be9415c1b501516115cb0c2157f3aba9065bb5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 58a342d9f76242dac3113ad592c2b35c49eddd508a14be5ee0efb54b42ef2f22 [INFO] running `Command { std: "docker" "start" "-a" "58a342d9f76242dac3113ad592c2b35c49eddd508a14be5ee0efb54b42ef2f22", kill_on_drop: false }` [INFO] [stderr] Compiling learn_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: enum `List` is never used [INFO] [stdout] --> src/smart_pointers/boxes.rs:2:6 [INFO] [stdout] | [INFO] [stdout] 2 | enum List { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ref` is never constructed [INFO] [stdout] --> src/smart_pointers/deref.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Ref { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/smart_pointers/deref.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl Ref { [INFO] [stdout] | -------------- associated function in this implementation [INFO] [stdout] 8 | fn new(x: T) -> Ref { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s [INFO] running `Command { std: "docker" "inspect" "58a342d9f76242dac3113ad592c2b35c49eddd508a14be5ee0efb54b42ef2f22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58a342d9f76242dac3113ad592c2b35c49eddd508a14be5ee0efb54b42ef2f22", kill_on_drop: false }` [INFO] [stdout] 58a342d9f76242dac3113ad592c2b35c49eddd508a14be5ee0efb54b42ef2f22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 433ff06e7ebe09a04fbd42c49434857519b95d6abd6d70cfc153290fb115996c [INFO] running `Command { std: "docker" "start" "-a" "433ff06e7ebe09a04fbd42c49434857519b95d6abd6d70cfc153290fb115996c", kill_on_drop: false }` [INFO] [stderr] warning: enum `List` is never used [INFO] [stderr] --> src/smart_pointers/boxes.rs:2:6 [INFO] [stderr] | [INFO] [stderr] 2 | enum List { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ref` is never constructed [INFO] [stderr] --> src/smart_pointers/deref.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct Ref { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function `new` is never used [INFO] [stderr] --> src/smart_pointers/deref.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 7 | impl Ref { [INFO] [stderr] | -------------- associated function in this implementation [INFO] [stderr] 8 | fn new(x: T) -> Ref { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn_rust` (lib) generated 3 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn_rust-837e958d0ea406df) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test smart_pointers::deref::tests::test_deref ... ok [INFO] [stdout] test smart_pointers::deref::tests::test_value ... ok [INFO] [stdout] test smart_pointers::boxes::tests::test_recursive_list_with_box_compiles ... ok [INFO] [stdout] test smart_pointers::boxes::tests::test_box_stores_value_on_heap ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_rust-f2fb4b7c17368d5e) [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Doc-tests learn_rust [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] [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" "433ff06e7ebe09a04fbd42c49434857519b95d6abd6d70cfc153290fb115996c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "433ff06e7ebe09a04fbd42c49434857519b95d6abd6d70cfc153290fb115996c", kill_on_drop: false }` [INFO] [stdout] 433ff06e7ebe09a04fbd42c49434857519b95d6abd6d70cfc153290fb115996c