[INFO] fetching crate objekt-clonable 0.2.2...
[INFO] checking objekt-clonable-0.2.2 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate objekt-clonable 0.2.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate objekt-clonable 0.2.2 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objekt-clonable 0.2.2
[INFO] finished tweaking crates.io crate objekt-clonable 0.2.2
[INFO] tweaked toml for crates.io crate objekt-clonable 0.2.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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 objekt-clonable-impl v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5415c4e20b6d4152ef3e40a84452400726ce97d3916f8c84d526b7059e1a9f8
[INFO] running `Command { std: "docker" "start" "-a" "e5415c4e20b6d4152ef3e40a84452400726ce97d3916f8c84d526b7059e1a9f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5415c4e20b6d4152ef3e40a84452400726ce97d3916f8c84d526b7059e1a9f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5415c4e20b6d4152ef3e40a84452400726ce97d3916f8c84d526b7059e1a9f8", kill_on_drop: false }`
[INFO] [stdout] e5415c4e20b6d4152ef3e40a84452400726ce97d3916f8c84d526b7059e1a9f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cad73545f0340201ec7e33b6491ef1cad4172a5f555b9dfb44ef9b9bac76931
[INFO] running `Command { std: "docker" "start" "-a" "1cad73545f0340201ec7e33b6491ef1cad4172a5f555b9dfb44ef9b9bac76931", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling objekt-clonable-impl v0.2.2
[INFO] [stderr]     Checking objekt-clonable v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:29:23
[INFO] [stdout]    |
[INFO] [stdout] 29 |     trait_object: Box<MyTrait>
[INFO] [stdout]    |                       ^^^^^^^ help: use `dyn`: `dyn MyTrait`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let x: Box<MyTrait> = Box::new(String::from(line));
[INFO] [stdout]    |                ^^^^^^^ help: use `dyn`: `dyn MyTrait`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `trait_object`
[INFO] [stdout]   --> examples/simple.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     trait_object: Box<MyTrait>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.30s
[INFO] running `Command { std: "docker" "inspect" "1cad73545f0340201ec7e33b6491ef1cad4172a5f555b9dfb44ef9b9bac76931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cad73545f0340201ec7e33b6491ef1cad4172a5f555b9dfb44ef9b9bac76931", kill_on_drop: false }`
[INFO] [stdout] 1cad73545f0340201ec7e33b6491ef1cad4172a5f555b9dfb44ef9b9bac76931