[INFO] fetching crate ibuilder 0.1.8...
[INFO] checking ibuilder-0.1.8 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] extracting crate ibuilder 0.1.8 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ibuilder 0.1.8 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ibuilder 0.1.8
[INFO] finished tweaking crates.io crate ibuilder 0.1.8
[INFO] tweaked toml for crates.io crate ibuilder 0.1.8 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded ibuilder_derive v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e035322d7449cd42d1d9434f1562469921bf8350002bee9515b76eea9c69770d
[INFO] running `Command { std: "docker" "start" "-a" "e035322d7449cd42d1d9434f1562469921bf8350002bee9515b76eea9c69770d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e035322d7449cd42d1d9434f1562469921bf8350002bee9515b76eea9c69770d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e035322d7449cd42d1d9434f1562469921bf8350002bee9515b76eea9c69770d", kill_on_drop: false }`
[INFO] [stdout] e035322d7449cd42d1d9434f1562469921bf8350002bee9515b76eea9c69770d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a625bb30765918dcd5442a4e759027483d8c7bd539f01576c81d01cffa44511
[INFO] running `Command { std: "docker" "start" "-a" "5a625bb30765918dcd5442a4e759027483d8c7bd539f01576c81d01cffa44511", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling trybuild v1.0.89
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ibuilder_derive v0.1.8
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking basic-toml v0.1.8
[INFO] [stderr]     Checking ibuilder v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/unnamed_field.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Test(i64);
[INFO] [stdout]   |        ---- ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Test` 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] 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] 4 | struct Test(());
[INFO] [stdout]   |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `integer`, `defaulted`, `inner`, and `en` are never read
[INFO] [stdout]   --> tests/random.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | struct Base {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 8  |     integer: i32,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 9  |     #[ibuilder(default = 42)]
[INFO] [stdout] 10 |     defaulted: i32,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 11 |     inner: Inner,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 12 |     #[ibuilder(rename = "enum")]
[INFO] [stdout] 13 |     en: Enum,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Base` 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 `string` and `defaulted` are never read
[INFO] [stdout]   --> tests/random.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct Inner {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 19 |     string: Option<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 20 |     #[ibuilder(default = "lol")]
[INFO] [stdout] 21 |     defaulted: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Inner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field` and `field2` are never read
[INFO] [stdout]   --> tests/random.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Var2 {
[INFO] [stdout]    |     ---- fields in this variant
[INFO] [stdout] 30 |         #[ibuilder(hidden, default = "nope")]
[INFO] [stdout] 31 |         field: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 32 |         #[ibuilder(rename = "baz")]
[INFO] [stdout] 33 |         field2: Inner,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/random.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |     Var3(Inner),
[INFO] [stdout]    |     ---- ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[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] 35 |     Var3(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/random.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Var4(Vec<Vec<Option<Box<Vec<Box<Box<Base>>>>>>>),
[INFO] [stdout]    |     ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[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] 37 |     Var4(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field` and `lol` are never read
[INFO] [stdout]  --> tests/enum.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Var2 {
[INFO] [stdout]   |     ---- fields in this variant
[INFO] [stdout] 7 |         field: i32,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 8 |         #[ibuilder(default = "ciao")]
[INFO] [stdout] 9 |         lol: String,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/enum.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Var3(i32),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[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] 11 |     Var3(()),
[INFO] [stdout]    |          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "5a625bb30765918dcd5442a4e759027483d8c7bd539f01576c81d01cffa44511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a625bb30765918dcd5442a4e759027483d8c7bd539f01576c81d01cffa44511", kill_on_drop: false }`
[INFO] [stdout] 5a625bb30765918dcd5442a4e759027483d8c7bd539f01576c81d01cffa44511
