[INFO] fetching crate sealed 0.6.0-rc3...
[INFO] checking sealed-0.6.0-rc3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate sealed 0.6.0-rc3 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sealed 0.6.0-rc3 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate sealed 0.6.0-rc3
[INFO] finished tweaking crates.io crate sealed 0.6.0-rc3
[INFO] tweaked toml for crates.io crate sealed 0.6.0-rc3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate sealed 0.6.0-rc3 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded basic-toml v0.1.7
[INFO] [stderr]   Downloaded once_cell v1.17.2
[INFO] [stderr]   Downloaded dissimilar v1.0.7
[INFO] [stderr]   Downloaded trybuild v1.0.85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c76000a7fcccd7808f77ca6383f2a3cbec45a06d305e135fd3b68ee9bc86ca9
[INFO] running `Command { std: "docker" "start" "-a" "5c76000a7fcccd7808f77ca6383f2a3cbec45a06d305e135fd3b68ee9bc86ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c76000a7fcccd7808f77ca6383f2a3cbec45a06d305e135fd3b68ee9bc86ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c76000a7fcccd7808f77ca6383f2a3cbec45a06d305e135fd3b68ee9bc86ca9", kill_on_drop: false }`
[INFO] [stdout] 5c76000a7fcccd7808f77ca6383f2a3cbec45a06d305e135fd3b68ee9bc86ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7724508e92b4f96ffeacdeadd6e6b9fd77fefb5aadd9cf708fc1dca391c114f0
[INFO] running `Command { std: "docker" "start" "-a" "7724508e92b4f96ffeacdeadd6e6b9fd77fefb5aadd9cf708fc1dca391c114f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling trybuild v1.0.85
[INFO] [stderr]     Checking dissimilar v1.0.7
[INFO] [stderr]     Checking termcolor v1.4.0
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]     Checking syn v2.0.41
[INFO] [stderr]     Checking basic-toml v0.1.7
[INFO] [stderr]     Checking sealed v0.6.0-rc3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> examples/bound-erasure-fn.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 |     trait Foo {}
[INFO] [stdout]   |           ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Bar` is never used
[INFO] [stdout]  --> examples/bound-erasure-fn.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 |     trait Bar {}
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]  --> examples/bound-erasure-fn.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     trait Trait<T: ?Sized + Foo> {}
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Implementor` is never constructed
[INFO] [stdout]   --> examples/bound-erasure-fn.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct Implementor {}
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> examples/bound-erasure.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait Foo {}
[INFO] [stdout]   |       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]  --> examples/bound-erasure.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | trait Trait<T: ?Sized + Foo> {}
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/nesting.rs:17:14
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct B(i32);
[INFO] [stdout]    |            - ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `LongerSnakeCaseType` is never used
[INFO] [stdout]  --> examples/nesting.rs:9:27
[INFO] [stdout]   |
[INFO] [stdout] 9 |                 pub trait LongerSnakeCaseType {}
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> examples/simple.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct B(i32);
[INFO] [stdout]   |            - ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "7724508e92b4f96ffeacdeadd6e6b9fd77fefb5aadd9cf708fc1dca391c114f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7724508e92b4f96ffeacdeadd6e6b9fd77fefb5aadd9cf708fc1dca391c114f0", kill_on_drop: false }`
[INFO] [stdout] 7724508e92b4f96ffeacdeadd6e6b9fd77fefb5aadd9cf708fc1dca391c114f0