[INFO] fetching crate mutablex 0.1.1...
[INFO] testing mutablex-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate mutablex 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate mutablex 0.1.1
[INFO] finished tweaking crates.io crate mutablex 0.1.1
[INFO] tweaked toml for crates.io crate mutablex 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mutablex 0.1.1 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] [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 38 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] 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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da12c43b8e49f4882b1fff906e76afd797b1ba7128635515f00a648aa8df3c79
[INFO] running `Command { std: "docker" "start" "-a" "da12c43b8e49f4882b1fff906e76afd797b1ba7128635515f00a648aa8df3c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da12c43b8e49f4882b1fff906e76afd797b1ba7128635515f00a648aa8df3c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da12c43b8e49f4882b1fff906e76afd797b1ba7128635515f00a648aa8df3c79", kill_on_drop: false }`
[INFO] [stdout] da12c43b8e49f4882b1fff906e76afd797b1ba7128635515f00a648aa8df3c79
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 354a1e65bfbbafde92b41a57dcabbb4bc13f2b284351ce7a0007efe9dbda56f7
[INFO] running `Command { std: "docker" "start" "-a" "354a1e65bfbbafde92b41a57dcabbb4bc13f2b284351ce7a0007efe9dbda56f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling uuid v1.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling gensym v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling futures-signals v0.3.34
[INFO] [stderr]    Compiling mutablex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.17s
[INFO] running `Command { std: "docker" "inspect" "354a1e65bfbbafde92b41a57dcabbb4bc13f2b284351ce7a0007efe9dbda56f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354a1e65bfbbafde92b41a57dcabbb4bc13f2b284351ce7a0007efe9dbda56f7", kill_on_drop: false }`
[INFO] [stdout] 354a1e65bfbbafde92b41a57dcabbb4bc13f2b284351ce7a0007efe9dbda56f7
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/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] 727b1f02f2acb7a65b98514b968ce314e4170ff219ff218c7a30d9d12b3c58bd
[INFO] running `Command { std: "docker" "start" "-a" "727b1f02f2acb7a65b98514b968ce314e4170ff219ff218c7a30d9d12b3c58bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling mutablex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling futures-signals v0.3.34
[INFO] [stdout] warning: unused imports: `Mutable` and `SignalExt`
[INFO] [stdout]  --> tests/basic.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 |     use futures_signals::signal::{Mutable, SignalExt};
[INFO] [stdout]   |                                   ^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.76s
[INFO] running `Command { std: "docker" "inspect" "727b1f02f2acb7a65b98514b968ce314e4170ff219ff218c7a30d9d12b3c58bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727b1f02f2acb7a65b98514b968ce314e4170ff219ff218c7a30d9d12b3c58bd", kill_on_drop: false }`
[INFO] [stdout] 727b1f02f2acb7a65b98514b968ce314e4170ff219ff218c7a30d9d12b3c58bd
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1f53ed903bdce0967ea8fcbb44c7df26879eb123cf3c352a493de590c412a2bf
[INFO] running `Command { std: "docker" "start" "-a" "1f53ed903bdce0967ea8fcbb44c7df26879eb123cf3c352a493de590c412a2bf", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Mutable` and `SignalExt`
[INFO] [stderr]  --> tests/basic.rs:3:35
[INFO] [stderr]   |
[INFO] [stderr] 3 |     use futures_signals::signal::{Mutable, SignalExt};
[INFO] [stderr]   |                                   ^^^^^^^  ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mutablex` (test "basic") generated 1 warning (run `cargo fix --test "basic"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mutablex-339a35ffa0a1ab90)
[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 tests/basic.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/basic-f55a7b50465978bf)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mutablex
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::basic ... 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] [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" "1f53ed903bdce0967ea8fcbb44c7df26879eb123cf3c352a493de590c412a2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f53ed903bdce0967ea8fcbb44c7df26879eb123cf3c352a493de590c412a2bf", kill_on_drop: false }`
[INFO] [stdout] 1f53ed903bdce0967ea8fcbb44c7df26879eb123cf3c352a493de590c412a2bf