[INFO] fetching crate constructivism 0.3.0...
[INFO] testing constructivism-0.3.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate constructivism 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate constructivism 0.3.0
[INFO] finished tweaking crates.io crate constructivism 0.3.0
[INFO] tweaked toml for crates.io crate constructivism 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate constructivism 0.3.0 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 crates.io crate constructivism 0.3.0 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded constructivism_macro v0.3.0
[INFO] [stderr]   Downloaded constructivism_macro_gen v0.3.0
[INFO] [stderr]   Downloaded constructivist v0.3.0
[INFO] [stderr]   Downloaded tuple_utils v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c5b2dcaab5504898baee4bafdec78b533b746b27a14e02e5e68ba87d5b701f5a
[INFO] running `Command { std: "docker" "start" "-a" "c5b2dcaab5504898baee4bafdec78b533b746b27a14e02e5e68ba87d5b701f5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5b2dcaab5504898baee4bafdec78b533b746b27a14e02e5e68ba87d5b701f5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5b2dcaab5504898baee4bafdec78b533b746b27a14e02e5e68ba87d5b701f5a", kill_on_drop: false }`
[INFO] [stdout] c5b2dcaab5504898baee4bafdec78b533b746b27a14e02e5e68ba87d5b701f5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f532c5a73fec286cdc3ecba7b8f2f4fb796b7ddad7a115899d06a101355d6ca7
[INFO] running `Command { std: "docker" "start" "-a" "f532c5a73fec286cdc3ecba7b8f2f4fb796b7ddad7a115899d06a101355d6ca7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling tuple_utils v0.4.0
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling constructivism_macro_gen v0.3.0
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling constructivist v0.3.0
[INFO] [stderr]    Compiling constructivism_macro v0.3.0
[INFO] [stderr]    Compiling constructivism v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stdout]     |            --------------     ^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s
[INFO] running `Command { std: "docker" "inspect" "f532c5a73fec286cdc3ecba7b8f2f4fb796b7ddad7a115899d06a101355d6ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f532c5a73fec286cdc3ecba7b8f2f4fb796b7ddad7a115899d06a101355d6ca7", kill_on_drop: false }`
[INFO] [stdout] f532c5a73fec286cdc3ecba7b8f2f4fb796b7ddad7a115899d06a101355d6ca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c9d1bac66c399450c8825ac0026f973acfc9c7ffcf70aa7a74b2825ee7bbe5ff
[INFO] running `Command { std: "docker" "start" "-a" "c9d1bac66c399450c8825ac0026f973acfc9c7ffcf70aa7a74b2825ee7bbe5ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling constructivism v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stdout]     |            --------------     ^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/core.rs:126:31
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stdout]     |            --------------     ^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `Command { std: "docker" "inspect" "c9d1bac66c399450c8825ac0026f973acfc9c7ffcf70aa7a74b2825ee7bbe5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9d1bac66c399450c8825ac0026f973acfc9c7ffcf70aa7a74b2825ee7bbe5ff", kill_on_drop: false }`
[INFO] [stdout] c9d1bac66c399450c8825ac0026f973acfc9c7ffcf70aa7a74b2825ee7bbe5ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7d4793ff9ba81c15f0fa546e4d7b2f40be79d01f2975d77e10d34df9afbad8a1
[INFO] running `Command { std: "docker" "start" "-a" "7d4793ff9ba81c15f0fa546e4d7b2f40be79d01f2975d77e10d34df9afbad8a1", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]    --> src/core.rs:126:31
[INFO] [stderr]     |
[INFO] [stderr] 126 | pub struct NothingSetters<'a>(&'a mut ());
[INFO] [stderr]     |            --------------     ^^^^^^^^^^
[INFO] [stderr]     |            |
[INFO] [stderr]     |            field in this struct
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `constructivism` (lib) generated 1 warning
[INFO] [stderr] warning: `constructivism` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/constructivism-92eca86535a8d2cf)
[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" "7d4793ff9ba81c15f0fa546e4d7b2f40be79d01f2975d77e10d34df9afbad8a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4793ff9ba81c15f0fa546e4d7b2f40be79d01f2975d77e10d34df9afbad8a1", kill_on_drop: false }`
[INFO] [stdout] 7d4793ff9ba81c15f0fa546e4d7b2f40be79d01f2975d77e10d34df9afbad8a1