[INFO] fetching crate frank 0.1.3... [INFO] testing frank-0.1.3 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] extracting crate frank 0.1.3 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate frank 0.1.3 [INFO] finished tweaking crates.io crate frank 0.1.3 [INFO] tweaked toml for crates.io crate frank 0.1.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate frank 0.1.3 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 2 packages to latest compatible versions [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ca9c8f2354e64cb26b936ad3c5c55b4a16203679c7e8706afa01607a68322f8b [INFO] running `Command { std: "docker" "start" "-a" "ca9c8f2354e64cb26b936ad3c5c55b4a16203679c7e8706afa01607a68322f8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ca9c8f2354e64cb26b936ad3c5c55b4a16203679c7e8706afa01607a68322f8b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca9c8f2354e64cb26b936ad3c5c55b4a16203679c7e8706afa01607a68322f8b", kill_on_drop: false }` [INFO] [stdout] ca9c8f2354e64cb26b936ad3c5c55b4a16203679c7e8706afa01607a68322f8b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 68b189e7227ae29757a3ec219b09d6849853140a47328518863c007b9dcc256e [INFO] running `Command { std: "docker" "start" "-a" "68b189e7227ae29757a3ec219b09d6849853140a47328518863c007b9dcc256e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling frank v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `remains` is never read [INFO] [stdout] --> src/lib.rs:415:13 [INFO] [stdout] | [INFO] [stdout] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `remains` is never read [INFO] [stdout] --> src/main.rs:415:13 [INFO] [stdout] | [INFO] [stdout] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rcl` [INFO] [stdout] --> src/main.rs:489:9 [INFO] [stdout] | [INFO] [stdout] 489 | let rcl = rank_count_lesser(&spinning); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rcl` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [optimized + debuginfo] target(s) in 5.53s [INFO] running `Command { std: "docker" "inspect" "68b189e7227ae29757a3ec219b09d6849853140a47328518863c007b9dcc256e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68b189e7227ae29757a3ec219b09d6849853140a47328518863c007b9dcc256e", kill_on_drop: false }` [INFO] [stdout] 68b189e7227ae29757a3ec219b09d6849853140a47328518863c007b9dcc256e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 07f17ed347e0bc3cccb43e81afe03f32528f4694f31ce45276b387a9850a7c16 [INFO] running `Command { std: "docker" "start" "-a" "07f17ed347e0bc3cccb43e81afe03f32528f4694f31ce45276b387a9850a7c16", kill_on_drop: false }` [INFO] [stdout] warning: value assigned to `remains` is never read [INFO] [stdout] --> src/lib.rs:415:13 [INFO] [stdout] | [INFO] [stdout] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling frank v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `remains` is never read [INFO] [stdout] --> src/lib.rs:415:13 [INFO] [stdout] | [INFO] [stdout] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `remains` is never read [INFO] [stdout] --> src/main.rs:415:13 [INFO] [stdout] | [INFO] [stdout] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rcl` [INFO] [stdout] --> src/main.rs:489:9 [INFO] [stdout] | [INFO] [stdout] 489 | let rcl = rank_count_lesser(&spinning); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rcl` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [optimized + debuginfo] target(s) in 0.69s [INFO] running `Command { std: "docker" "inspect" "07f17ed347e0bc3cccb43e81afe03f32528f4694f31ce45276b387a9850a7c16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07f17ed347e0bc3cccb43e81afe03f32528f4694f31ce45276b387a9850a7c16", kill_on_drop: false }` [INFO] [stdout] 07f17ed347e0bc3cccb43e81afe03f32528f4694f31ce45276b387a9850a7c16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fa3e43b7c72943eed27c1a1b3550d203d9b3248faa2a733850aa1cc24b855834 [INFO] running `Command { std: "docker" "start" "-a" "fa3e43b7c72943eed27c1a1b3550d203d9b3248faa2a733850aa1cc24b855834", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/lib.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `frank` (lib) generated 1 warning [INFO] [stderr] warning: value assigned to `remains` is never read [INFO] [stderr] --> src/main.rs:415:13 [INFO] [stderr] | [INFO] [stderr] 415 | let mut remains: i128 = 0; //code works as intended despite "never used" warning here for Rust 2018 v 1.33-nightly. Play that fiddle... [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rcl` [INFO] [stderr] --> src/main.rs:489:9 [INFO] [stderr] | [INFO] [stderr] 489 | let rcl = rank_count_lesser(&spinning); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_rcl` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `frank` (bin "frank" test) generated 2 warnings [INFO] [stderr] warning: `frank` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [optimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/frank-1e51c7bb63318abe) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/frank-6af8b17b464428e9) [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" "fa3e43b7c72943eed27c1a1b3550d203d9b3248faa2a733850aa1cc24b855834", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa3e43b7c72943eed27c1a1b3550d203d9b3248faa2a733850aa1cc24b855834", kill_on_drop: false }` [INFO] [stdout] fa3e43b7c72943eed27c1a1b3550d203d9b3248faa2a733850aa1cc24b855834