[INFO] cloning repository https://github.com/hoailinh1210/learn-rust-by-examples [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hoailinh1210/learn-rust-by-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoailinh1210%2Flearn-rust-by-examples", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoailinh1210%2Flearn-rust-by-examples'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b61665385d863edef3fe012b2706f8ff01f0fc2b [INFO] testing hoailinh1210/learn-rust-by-examples against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhoailinh1210%2Flearn-rust-by-examples" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/hoailinh1210/learn-rust-by-examples [INFO] finished tweaking git repo https://github.com/hoailinh1210/learn-rust-by-examples [INFO] tweaked toml for git repo https://github.com/hoailinh1210/learn-rust-by-examples written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/hoailinh1210/learn-rust-by-examples on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/hoailinh1210/learn-rust-by-examples 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 127ffe2b70fe927c2a02754fe1fb38d4889c630ac75f810f11d7dc8530d594e1 [INFO] running `Command { std: "docker" "start" "-a" "127ffe2b70fe927c2a02754fe1fb38d4889c630ac75f810f11d7dc8530d594e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "127ffe2b70fe927c2a02754fe1fb38d4889c630ac75f810f11d7dc8530d594e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "127ffe2b70fe927c2a02754fe1fb38d4889c630ac75f810f11d7dc8530d594e1", kill_on_drop: false }` [INFO] [stdout] 127ffe2b70fe927c2a02754fe1fb38d4889c630ac75f810f11d7dc8530d594e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] c93e664fd185e94fbcc576035c5cbfb4826749195a3b86c11df78ff0fb35497f [INFO] running `Command { std: "docker" "start" "-a" "c93e664fd185e94fbcc576035c5cbfb4826749195a3b86c11df78ff0fb35497f", kill_on_drop: false }` [INFO] [stderr] Compiling learn-rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variants `A` and `B` are never constructed [INFO] [stdout] --> src/bin/enum-sizes.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum Foo { [INFO] [stdout] | --- variants in this enum [INFO] [stdout] 9 | A, [INFO] [stdout] | ^ [INFO] [stdout] 10 | B, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s [INFO] running `Command { std: "docker" "inspect" "c93e664fd185e94fbcc576035c5cbfb4826749195a3b86c11df78ff0fb35497f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c93e664fd185e94fbcc576035c5cbfb4826749195a3b86c11df78ff0fb35497f", kill_on_drop: false }` [INFO] [stdout] c93e664fd185e94fbcc576035c5cbfb4826749195a3b86c11df78ff0fb35497f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 09680fd878d54c2eb5b1d18b45cdbeccefd84409c2666a48218f9ec116718d5f [INFO] running `Command { std: "docker" "start" "-a" "09680fd878d54c2eb5b1d18b45cdbeccefd84409c2666a48218f9ec116718d5f", kill_on_drop: false }` [INFO] [stderr] Compiling learn-rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variants `A` and `B` are never constructed [INFO] [stdout] --> src/bin/enum-sizes.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | enum Foo { [INFO] [stdout] | --- variants in this enum [INFO] [stdout] 9 | A, [INFO] [stdout] | ^ [INFO] [stdout] 10 | B, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.65s [INFO] running `Command { std: "docker" "inspect" "09680fd878d54c2eb5b1d18b45cdbeccefd84409c2666a48218f9ec116718d5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "09680fd878d54c2eb5b1d18b45cdbeccefd84409c2666a48218f9ec116718d5f", kill_on_drop: false }` [INFO] [stdout] 09680fd878d54c2eb5b1d18b45cdbeccefd84409c2666a48218f9ec116718d5f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 2ff6cd9c4ebb23751c1afc1e5c660ae007c0dbe73974e8a7a92f72b5bf464a12 [INFO] running `Command { std: "docker" "start" "-a" "2ff6cd9c4ebb23751c1afc1e5c660ae007c0dbe73974e8a7a92f72b5bf464a12", kill_on_drop: false }` [INFO] [stderr] warning: variants `A` and `B` are never constructed [INFO] [stderr] --> src/bin/enum-sizes.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 8 | enum Foo { [INFO] [stderr] | --- variants in this enum [INFO] [stderr] 9 | A, [INFO] [stderr] | ^ [INFO] [stderr] 10 | B, [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `learn-rust-by-example` (bin "enum-sizes" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/bin/arrays-and-loops.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/arrays_and_loops-7d77e752943a0454) [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] [stderr] Running unittests src/bin/blocks.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/blocks-5442a05ab0dfcf59) [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] [stderr] Running unittests src/bin/destructuring-arrays.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/destructuring_arrays-2c90aaf64820bb08) [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] [stderr] Running unittests src/bin/destructuring-enums.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/destructuring_enums-e488a1b11db81e96) [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] [stderr] Running unittests src/bin/destructuring-structs.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/destructuring_structs-024e3359f350ea14) [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] [stderr] Running unittests src/bin/enum-sizes.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/enum_sizes-52357d5ba6c64c7b) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/enums.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/enums-3105f14ce2a87083) [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] [stderr] Running unittests src/bin/implicit-conversions.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/implicit_conversions-a3340cdd1772f189) [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/learn_rust_by_example-728b72396363b177) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/let-expressions.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/let_expressions-1dd50c71dffd8602) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/match-guards.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/match_guards-f25b28829e344c3b) [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] [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] [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] [stderr] Running unittests src/bin/methods.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/methods-5bd9e90714a9cd5c) [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] [stderr] Running unittests src/bin/overloadding.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/overloadding-596945ce4a4343b7) [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] [stderr] Running unittests src/bin/pattern-matching.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/pattern_matching-d1e62bc46cd3c6fb) [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] [stderr] Running unittests src/bin/scopes-and-shaddows.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/scopes_and_shaddows-3d64ae50767dad8f) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/while-let.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/while_let-ff73426e477d332d) [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" "2ff6cd9c4ebb23751c1afc1e5c660ae007c0dbe73974e8a7a92f72b5bf464a12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ff6cd9c4ebb23751c1afc1e5c660ae007c0dbe73974e8a7a92f72b5bf464a12", kill_on_drop: false }` [INFO] [stdout] 2ff6cd9c4ebb23751c1afc1e5c660ae007c0dbe73974e8a7a92f72b5bf464a12