[INFO] fetching crate ifmt 0.3.3...
[INFO] testing ifmt-0.3.3 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate ifmt 0.3.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ifmt 0.3.3
[INFO] finished tweaking crates.io crate ifmt 0.3.3
[INFO] tweaked toml for crates.io crate ifmt 0.3.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ifmt 0.3.3 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]     Updating crates.io index
[INFO] [stderr]      Locking 12 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ifmt-impl v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 48e97ee523c031004eacd70397f8b8c811625e478a0d94e0a03a705c20188546
[INFO] running `Command { std: "docker" "start" "-a" "48e97ee523c031004eacd70397f8b8c811625e478a0d94e0a03a705c20188546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48e97ee523c031004eacd70397f8b8c811625e478a0d94e0a03a705c20188546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48e97ee523c031004eacd70397f8b8c811625e478a0d94e0a03a705c20188546", kill_on_drop: false }`
[INFO] [stdout] 48e97ee523c031004eacd70397f8b8c811625e478a0d94e0a03a705c20188546
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 026601b35dd5c91ec939aed5666be8741a0a034ed4983be7e987d3921d5ba801
[INFO] running `Command { std: "docker" "start" "-a" "026601b35dd5c91ec939aed5666be8741a0a034ed4983be7e987d3921d5ba801", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling ifmt-impl v0.3.3
[INFO] [stderr]    Compiling ifmt v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.14s
[INFO] running `Command { std: "docker" "inspect" "026601b35dd5c91ec939aed5666be8741a0a034ed4983be7e987d3921d5ba801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "026601b35dd5c91ec939aed5666be8741a0a034ed4983be7e987d3921d5ba801", kill_on_drop: false }`
[INFO] [stdout] 026601b35dd5c91ec939aed5666be8741a0a034ed4983be7e987d3921d5ba801
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1f284bfd62692758ebb72042afd7f83ce425bc259bdea2f3de2bc3bc230d40ce
[INFO] running `Command { std: "docker" "start" "-a" "1f284bfd62692758ebb72042afd7f83ce425bc259bdea2f3de2bc3bc230d40ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling ifmt v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> tests/inlittests.rs:121:9
[INFO] [stdout]     |
[INFO] [stdout] 121 |         iformat!("borrow: {v[0]}");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `::std::format` which comes from the expansion of the macro `iformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> tests/outlittests.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         iformat!("borrow: " v[0]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `::std::format` which comes from the expansion of the macro `iformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "1f284bfd62692758ebb72042afd7f83ce425bc259bdea2f3de2bc3bc230d40ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f284bfd62692758ebb72042afd7f83ce425bc259bdea2f3de2bc3bc230d40ce", kill_on_drop: false }`
[INFO] [stdout] 1f284bfd62692758ebb72042afd7f83ce425bc259bdea2f3de2bc3bc230d40ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 98a5f8b6b3e9de82f6c473e7a34e3389d5a0db66a342d0e6fb1cbdeefc35e9d9
[INFO] running `Command { std: "docker" "start" "-a" "98a5f8b6b3e9de82f6c473e7a34e3389d5a0db66a342d0e6fb1cbdeefc35e9d9", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `must_use` that must be used
[INFO] [stderr]    --> tests/inlittests.rs:121:9
[INFO] [stderr]     |
[INFO] [stderr] 121 |         iformat!("borrow: {v[0]}");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `::std::format` which comes from the expansion of the macro `iformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `must_use` that must be used
[INFO] [stderr]    --> tests/outlittests.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         iformat!("borrow: " v[0]);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `::std::format` which comes from the expansion of the macro `iformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `ifmt` (test "inlittests") generated 1 warning
[INFO] [stderr] warning: `ifmt` (test "outlittests") generated 1 warning
[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/ifmt-c2039c7c1d655a15)
[INFO] [stderr]      Running tests/inlittests.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/inlittests-8d91435638d13387)
[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 9 tests
[INFO] [stdout] test inlittests::borrow ... ok
[INFO] [stdout] test inlittests::internal_chars ... ok
[INFO] [stdout] test inlittests::expr_subst ... ok
[INFO] [stdout] test inlittests::internal_lifetimes ... ok
[INFO] [stdout] test inlittests::internal_strings ... ok
[INFO] [stdout] test inlittests::simple_subst ... ok
[INFO] [stdout] test inlittests::spec_subst ... ok
[INFO] [stdout] test inlittests::write ... ok
[INFO] [stdout] test inlittests::panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/outlittests.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/outlittests-a4db0ca6949516e9)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test outlittests::expr_subst ... ok
[INFO] [stdout] test outlittests::internal_chars ... ok
[INFO] [stdout] test outlittests::borrow ... ok
[INFO] [stdout] test outlittests::internal_lifetimes ... ok
[INFO] [stdout] test outlittests::no_alignment_leak ... ok
[INFO] [stdout] test outlittests::simple_subst ... ok
[INFO] [stdout] test outlittests::spec_subst ... ok
[INFO] [stdout] test outlittests::write ... ok
[INFO] [stdout] test outlittests::panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "98a5f8b6b3e9de82f6c473e7a34e3389d5a0db66a342d0e6fb1cbdeefc35e9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98a5f8b6b3e9de82f6c473e7a34e3389d5a0db66a342d0e6fb1cbdeefc35e9d9", kill_on_drop: false }`
[INFO] [stdout] 98a5f8b6b3e9de82f6c473e7a34e3389d5a0db66a342d0e6fb1cbdeefc35e9d9