[INFO] fetching crate micro-timer 0.4.0...
[INFO] testing micro-timer-0.4.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate micro-timer 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate micro-timer 0.4.0
[INFO] finished tweaking crates.io crate micro-timer 0.4.0
[INFO] tweaked toml for crates.io crate micro-timer 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate micro-timer 0.4.0 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] 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]      Locking 7 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded micro-timer-macros v0.4.0
[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] bf78d579f8eed6f6898da00827a92cd86f5a86c95023b6ec298db30d5da933cb
[INFO] running `Command { std: "docker" "start" "-a" "bf78d579f8eed6f6898da00827a92cd86f5a86c95023b6ec298db30d5da933cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf78d579f8eed6f6898da00827a92cd86f5a86c95023b6ec298db30d5da933cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf78d579f8eed6f6898da00827a92cd86f5a86c95023b6ec298db30d5da933cb", kill_on_drop: false }`
[INFO] [stdout] bf78d579f8eed6f6898da00827a92cd86f5a86c95023b6ec298db30d5da933cb
[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] b178a674c85b9111247f75a0449db626d14ffa9160f8599e0370f1a451b50b7d
[INFO] running `Command { std: "docker" "start" "-a" "b178a674c85b9111247f75a0449db626d14ffa9160f8599e0370f1a451b50b7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling micro-timer-macros v0.4.0
[INFO] [stderr]    Compiling micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.62s
[INFO] running `Command { std: "docker" "inspect" "b178a674c85b9111247f75a0449db626d14ffa9160f8599e0370f1a451b50b7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b178a674c85b9111247f75a0449db626d14ffa9160f8599e0370f1a451b50b7d", kill_on_drop: false }`
[INFO] [stdout] b178a674c85b9111247f75a0449db626d14ffa9160f8599e0370f1a451b50b7d
[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] dc7b7ed3944ba0ecdeeb28d89a38f8db1a894004af691f15820f3d492e8b2279
[INFO] running `Command { std: "docker" "start" "-a" "dc7b7ed3944ba0ecdeeb28d89a38f8db1a894004af691f15820f3d492e8b2279", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/behavior.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> tests/compilation.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn thing(value: Thing) -> &mut String {
[INFO] [stdout]    |                     ^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn thing(value: Thing<'_>) -> &mut String {
[INFO] [stdout]    |                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]   --> tests/compilation.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |         unsafe { *value != 0u8 };
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 73 |         unsafe { let _ = *value != 0u8; };
[INFO] [stdout]    |                  +++++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "dc7b7ed3944ba0ecdeeb28d89a38f8db1a894004af691f15820f3d492e8b2279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7b7ed3944ba0ecdeeb28d89a38f8db1a894004af691f15820f3d492e8b2279", kill_on_drop: false }`
[INFO] [stdout] dc7b7ed3944ba0ecdeeb28d89a38f8db1a894004af691f15820f3d492e8b2279
[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] 0021128b6e2d526459ce089b370715e33c1bdb381f1c5de6eef8b4d52c7ad1b9
[INFO] running `Command { std: "docker" "start" "-a" "0021128b6e2d526459ce089b370715e33c1bdb381f1c5de6eef8b4d52c7ad1b9", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout] 
[INFO] [stderr]   --> tests/compilation.rs:57:21
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 57 |     fn thing(value: Thing) -> &mut String {
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                     ^^^^^     ----------- the lifetime gets resolved as `'_`
[INFO] [stdout] 
[INFO] [stderr]    |                     |
[INFO] [stdout] 
[INFO] [stderr]    |                     this lifetime flows to the output
[INFO] [stdout] running 1 test
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn thing(value: Thing<'_>) -> &mut String {
[INFO] [stderr]    |                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> tests/compilation.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |         unsafe { *value != 0u8 };
[INFO] [stderr]    |                  ^^^^^^^^^^^^^ the comparison produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 73 |         unsafe { let _ = *value != 0u8; };
[INFO] [stderr]    |                  +++++++              +
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/behavior.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `micro-timer` (test "compilation") generated 2 warnings (run `cargo fix --test "compilation"` to apply 1 suggestion)
[INFO] [stderr] warning: `micro-timer` (test "behavior") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/micro_timer-eb476b50bb5d7f16)
[INFO] [stderr]      Running tests/behavior.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/behavior-6d2958c52ad3ac73)
[INFO] [stdout] test test_behavior ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/compilation.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/compilation-1ef1ee9ec121bf61)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test check_name_conflict ... ok
[INFO] [stdout] test test_fn_mut ... ok
[INFO] [stdout] test test_mut ... ok
[INFO] [stdout] test test_mut_struct ... ok
[INFO] [stdout] test test_ref_mut ... ok
[INFO] [stdout] test test_mut_pointer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0021128b6e2d526459ce089b370715e33c1bdb381f1c5de6eef8b4d52c7ad1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0021128b6e2d526459ce089b370715e33c1bdb381f1c5de6eef8b4d52c7ad1b9", kill_on_drop: false }`
[INFO] [stdout] 0021128b6e2d526459ce089b370715e33c1bdb381f1c5de6eef8b4d52c7ad1b9