[INFO] fetching crate milf 0.5.8...
[INFO] testing milf-0.5.8 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate milf 0.5.8 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate milf 0.5.8
[INFO] finished tweaking crates.io crate milf 0.5.8
[INFO] tweaked toml for crates.io crate milf 0.5.8 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate milf 0.5.8 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate milf 0.5.8 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb1e3706a2c3ef36f931527f67f4437251731f0535c53dbac618ff73656f6293
[INFO] running `Command { std: "docker" "start" "-a" "fb1e3706a2c3ef36f931527f67f4437251731f0535c53dbac618ff73656f6293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb1e3706a2c3ef36f931527f67f4437251731f0535c53dbac618ff73656f6293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb1e3706a2c3ef36f931527f67f4437251731f0535c53dbac618ff73656f6293", kill_on_drop: false }`
[INFO] [stdout] fb1e3706a2c3ef36f931527f67f4437251731f0535c53dbac618ff73656f6293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7de18d4d2716922b61b309a0f2d931c84f9191b5ae364cf85f8af6a44a8df98
[INFO] running `Command { std: "docker" "start" "-a" "e7de18d4d2716922b61b309a0f2d931c84f9191b5ae364cf85f8af6a44a8df98", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling milf v0.5.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.33s
[INFO] running `Command { std: "docker" "inspect" "e7de18d4d2716922b61b309a0f2d931c84f9191b5ae364cf85f8af6a44a8df98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7de18d4d2716922b61b309a0f2d931c84f9191b5ae364cf85f8af6a44a8df98", kill_on_drop: false }`
[INFO] [stdout] e7de18d4d2716922b61b309a0f2d931c84f9191b5ae364cf85f8af6a44a8df98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64f01b1c1221640d9a5d77528837166a0ba83c5796227a33792d55d4135e775d
[INFO] running `Command { std: "docker" "start" "-a" "64f01b1c1221640d9a5d77528837166a0ba83c5796227a33792d55d4135e775d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling milf v0.5.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: fields `plain`, `plain_table`, `tuple`, `structv`, `newtype`, and `my_enum` are never read
[INFO] [stdout]   --> examples/enum_external.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 11 |     plain: MyEnum,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     plain_table: MyEnum,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 13 |     tuple: MyEnum,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     #[serde(rename = "struct")]
[INFO] [stdout] 15 |     structv: MyEnum,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 16 |     newtype: MyEnum,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 17 |     my_enum: Vec<MyEnum>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> examples/enum_external.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `0` and `1` are never read
[INFO] [stdout]   --> examples/enum_external.rs:23:11
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Tuple(i64, bool),
[INFO] [stdout]    |     ----- ^^^  ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 23 -     Tuple(i64, bool),
[INFO] [stdout] 23 +     Tuple((), ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `0` is never read
[INFO] [stdout]   --> examples/enum_external.rs:24:13
[INFO] [stdout]    |
[INFO] [stdout] 24 |     NewType(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 -     NewType(String),
[INFO] [stdout] 24 +     NewType(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `value` is never read
[INFO] [stdout]   --> examples/enum_external.rs:25:14
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Struct { value: i64 },
[INFO] [stdout]    |     ------   ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `global_string`, `global_integer`, `server`, and `peers` are never read
[INFO] [stdout]   --> examples/decode.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Config {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 12 |     global_string: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 13 |     global_integer: Option<u64>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     server: Option<ServerConfig>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     peers: Option<Vec<PeerConfig>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> examples/decode.rs:4:9
[INFO] [stdout]    |
[INFO] [stdout]  4 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `ip` and `port` are never read
[INFO] [stdout]   --> examples/decode.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct ServerConfig {
[INFO] [stdout]    |        ------------ fields in this struct
[INFO] [stdout] 24 |     ip: Option<String>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 25 |     port: Option<u64>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: fields `ip` and `port` are never read
[INFO] [stdout]   --> examples/decode.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct PeerConfig {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 30 |     ip: Option<String>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 31 |     port: Option<u64>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PeerConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `milf` (example "enum_external") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `milf` (example "decode") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "64f01b1c1221640d9a5d77528837166a0ba83c5796227a33792d55d4135e775d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f01b1c1221640d9a5d77528837166a0ba83c5796227a33792d55d4135e775d", kill_on_drop: false }`
[INFO] [stdout] 64f01b1c1221640d9a5d77528837166a0ba83c5796227a33792d55d4135e775d
