[INFO] fetching crate collections2 0.0.1...
[INFO] testing collections2-0.0.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate collections2 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate collections2 0.0.1
[INFO] finished tweaking crates.io crate collections2 0.0.1
[INFO] tweaked toml for crates.io crate collections2 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate collections2 0.0.1 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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0e106c104039b472079d5a3d0747c0e3aa95f4124500a821d81a03ea6e2b880b
[INFO] running `Command { std: "docker" "start" "-a" "0e106c104039b472079d5a3d0747c0e3aa95f4124500a821d81a03ea6e2b880b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e106c104039b472079d5a3d0747c0e3aa95f4124500a821d81a03ea6e2b880b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e106c104039b472079d5a3d0747c0e3aa95f4124500a821d81a03ea6e2b880b", kill_on_drop: false }`
[INFO] [stdout] 0e106c104039b472079d5a3d0747c0e3aa95f4124500a821d81a03ea6e2b880b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0070f45f335b27e3972397479ac6941bd07476e841509eb03c20b1a13c253b16
[INFO] running `Command { std: "docker" "start" "-a" "0070f45f335b27e3972397479ac6941bd07476e841509eb03c20b1a13c253b16", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections2 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "0070f45f335b27e3972397479ac6941bd07476e841509eb03c20b1a13c253b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0070f45f335b27e3972397479ac6941bd07476e841509eb03c20b1a13c253b16", kill_on_drop: false }`
[INFO] [stdout] 0070f45f335b27e3972397479ac6941bd07476e841509eb03c20b1a13c253b16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9f8349f7129025726654cac065a035cfe5a81648674ebbe128759dc2e88cbcac
[INFO] running `Command { std: "docker" "start" "-a" "9f8349f7129025726654cac065a035cfe5a81648674ebbe128759dc2e88cbcac", kill_on_drop: false }`
[INFO] [stderr]    Compiling collections2 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/list.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/map.rs:193:9
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::alloc::*`
[INFO] [stdout]    --> src/map.rs:342:9
[INFO] [stdout]     |
[INFO] [stdout] 342 | pub use self::alloc::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::std::*`
[INFO] [stdout]    --> src/set.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub use self::std::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "9f8349f7129025726654cac065a035cfe5a81648674ebbe128759dc2e88cbcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8349f7129025726654cac065a035cfe5a81648674ebbe128759dc2e88cbcac", kill_on_drop: false }`
[INFO] [stdout] 9f8349f7129025726654cac065a035cfe5a81648674ebbe128759dc2e88cbcac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 0b87c330781152a4d93f95889c9ea2659e8a81ec8cb0845ef928e4fc1da0282e
[INFO] running `Command { std: "docker" "start" "-a" "0b87c330781152a4d93f95889c9ea2659e8a81ec8cb0845ef928e4fc1da0282e", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self::alloc::*`
[INFO] [stderr]    --> src/list.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 | pub use self::alloc::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::std::*`
[INFO] [stderr]    --> src/map.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 | pub use self::std::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::alloc::*`
[INFO] [stderr]    --> src/map.rs:342:9
[INFO] [stderr]     |
[INFO] [stderr] 342 | pub use self::alloc::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::std::*`
[INFO] [stderr]    --> src/set.rs:125:9
[INFO] [stderr]     |
[INFO] [stderr] 125 | pub use self::std::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `collections2` (lib) generated 4 warnings (run `cargo fix --lib -p collections2` to apply 4 suggestions)
[INFO] [stderr] warning: `collections2` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/collections2-f50a464cc26bf692)
[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" "0b87c330781152a4d93f95889c9ea2659e8a81ec8cb0845ef928e4fc1da0282e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b87c330781152a4d93f95889c9ea2659e8a81ec8cb0845ef928e4fc1da0282e", kill_on_drop: false }`
[INFO] [stdout] 0b87c330781152a4d93f95889c9ea2659e8a81ec8cb0845ef928e4fc1da0282e