[INFO] fetching crate hazy 0.1.1...
[INFO] testing hazy-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 hazy 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate hazy 0.1.1
[INFO] finished tweaking crates.io crate hazy 0.1.1
[INFO] tweaked toml for crates.io crate hazy 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hazy 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]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.40)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.104)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hazy_derive v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a1097d834059beb834e085ef360fabcabb39a67b187581f78e1a1258f916e95a
[INFO] running `Command { std: "docker" "start" "-a" "a1097d834059beb834e085ef360fabcabb39a67b187581f78e1a1258f916e95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1097d834059beb834e085ef360fabcabb39a67b187581f78e1a1258f916e95a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1097d834059beb834e085ef360fabcabb39a67b187581f78e1a1258f916e95a", kill_on_drop: false }`
[INFO] [stdout] a1097d834059beb834e085ef360fabcabb39a67b187581f78e1a1258f916e95a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 3ab0fe63bdca73db8eb774e3511b7c78eaa04b85342ac2be15850e62f782c41d
[INFO] running `Command { std: "docker" "start" "-a" "3ab0fe63bdca73db8eb774e3511b7c78eaa04b85342ac2be15850e62f782c41d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling hazy_derive v0.1.1
[INFO] [stderr]    Compiling hazy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.71s
[INFO] running `Command { std: "docker" "inspect" "3ab0fe63bdca73db8eb774e3511b7c78eaa04b85342ac2be15850e62f782c41d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ab0fe63bdca73db8eb774e3511b7c78eaa04b85342ac2be15850e62f782c41d", kill_on_drop: false }`
[INFO] [stdout] 3ab0fe63bdca73db8eb774e3511b7c78eaa04b85342ac2be15850e62f782c41d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 04eddf2affe8734a17fc4964543a6b5b4c57fb7c0562acc201393e7505d033c5
[INFO] running `Command { std: "docker" "start" "-a" "04eddf2affe8734a17fc4964543a6b5b4c57fb7c0562acc201393e7505d033c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling hazy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `e` is never read
[INFO] [stdout]   --> examples/simple.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 |     HeapSize { e: String },
[INFO] [stdout]    |     --------   ^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, `c`, and `d` are never read
[INFO] [stdout]   --> examples/simple.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | struct Demo<'a, T: ?Sized + ::std::fmt::Debug> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 42 |     a: Box<T>,
[INFO] [stdout]    |     ^
[INFO] [stdout] 43 |     b: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 44 |     c: &'a str,
[INFO] [stdout]    |     ^
[INFO] [stdout] 45 |     d: HeapSize,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Demo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `e` is never read
[INFO] [stdout]   --> examples/simple.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct HeapSize {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] 50 |     e: String,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `HeapSize` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/simple.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Foo(usize);
[INFO] [stdout]    |        --- ^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "04eddf2affe8734a17fc4964543a6b5b4c57fb7c0562acc201393e7505d033c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04eddf2affe8734a17fc4964543a6b5b4c57fb7c0562acc201393e7505d033c5", kill_on_drop: false }`
[INFO] [stdout] 04eddf2affe8734a17fc4964543a6b5b4c57fb7c0562acc201393e7505d033c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 37d63ea692aba022e6a191b933b8cf55fd597fc1fef6c7bbf2f74f6598da9a09
[INFO] running `Command { std: "docker" "start" "-a" "37d63ea692aba022e6a191b933b8cf55fd597fc1fef6c7bbf2f74f6598da9a09", kill_on_drop: false }`
[INFO] [stderr] warning: field `e` is never read
[INFO] [stderr]   --> examples/simple.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     HeapSize { e: String },
[INFO] [stderr]    |     --------   ^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Enum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `a`, `b`, `c`, and `d` are never read
[INFO] [stderr]   --> examples/simple.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 41 | struct Demo<'a, T: ?Sized + ::std::fmt::Debug> {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 42 |     a: Box<T>,
[INFO] [stderr]    |     ^
[INFO] [stderr] 43 |     b: u8,
[INFO] [stderr]    |     ^
[INFO] [stderr] 44 |     c: &'a str,
[INFO] [stderr]    |     ^
[INFO] [stderr] 45 |     d: HeapSize,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Demo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `e` is never read
[INFO] [stderr]   --> examples/simple.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 49 | struct HeapSize {
[INFO] [stderr]    |        -------- field in this struct
[INFO] [stderr] 50 |     e: String,
[INFO] [stderr]    |     ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `HeapSize` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> examples/simple.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 54 | struct Foo(usize);
[INFO] [stderr]    |        --- ^^^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `hazy` (example "simple") generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/hazy-c525eba1700e2c73)
[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" "37d63ea692aba022e6a191b933b8cf55fd597fc1fef6c7bbf2f74f6598da9a09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d63ea692aba022e6a191b933b8cf55fd597fc1fef6c7bbf2f74f6598da9a09", kill_on_drop: false }`
[INFO] [stdout] 37d63ea692aba022e6a191b933b8cf55fd597fc1fef6c7bbf2f74f6598da9a09