[INFO] fetching crate guard_let 0.1.2...
[INFO] testing guard_let-0.1.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate guard_let 0.1.2 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate guard_let 0.1.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate guard_let 0.1.2
[INFO] finished tweaking crates.io crate guard_let 0.1.2
[INFO] tweaked toml for crates.io crate guard_let 0.1.2 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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 pmutil v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a8214a0e68af48c644df80d6ebbde87d747864d450ea16cb0a6b6343efb66f3
[INFO] running `Command { std: "docker" "start" "-a" "6a8214a0e68af48c644df80d6ebbde87d747864d450ea16cb0a6b6343efb66f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a8214a0e68af48c644df80d6ebbde87d747864d450ea16cb0a6b6343efb66f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8214a0e68af48c644df80d6ebbde87d747864d450ea16cb0a6b6343efb66f3", kill_on_drop: false }`
[INFO] [stdout] 6a8214a0e68af48c644df80d6ebbde87d747864d450ea16cb0a6b6343efb66f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 225352d161e37bdc79bb5bfe1ce4237a10759462c6ef7b5f7075f13013517f96
[INFO] running `Command { std: "docker" "start" "-a" "225352d161e37bdc79bb5bfe1ce4237a10759462c6ef7b5f7075f13013517f96", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling guard_let v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.51s
[INFO] running `Command { std: "docker" "inspect" "225352d161e37bdc79bb5bfe1ce4237a10759462c6ef7b5f7075f13013517f96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "225352d161e37bdc79bb5bfe1ce4237a10759462c6ef7b5f7075f13013517f96", kill_on_drop: false }`
[INFO] [stdout] 225352d161e37bdc79bb5bfe1ce4237a10759462c6ef7b5f7075f13013517f96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb9d2bc67f7d856e01bdb826ba0d17f208087b765ed3167940a9bcfb087675e1
[INFO] running `Command { std: "docker" "start" "-a" "bb9d2bc67f7d856e01bdb826ba0d17f208087b765ed3167940a9bcfb087675e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling guard_let v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `Enum` doesn't implement `Debug`
[INFO] [stdout]   --> tests/usage.rs:21:38
[INFO] [stdout]    |
[INFO] [stdout] 21 |         println!("v is not A: {:?}", v);
[INFO] [stdout]    |                                      ^ `Enum` cannot be formatted using `{:?}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `Enum`
[INFO] [stdout]    = note: add `#[derive(Debug)]` to `Enum` or manually `impl Debug for Enum`
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Enum` doesn't implement `Debug`
[INFO] [stdout]   --> tests/usage.rs:35:38
[INFO] [stdout]    |
[INFO] [stdout] 35 |         println!("v is not C: {:?}", v);
[INFO] [stdout]    |                                      ^ `Enum` cannot be formatted using `{:?}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Debug` is not implemented for `Enum`
[INFO] [stdout]    = note: add `#[derive(Debug)]` to `Enum` or manually `impl Debug for Enum`
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `guard_let` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bb9d2bc67f7d856e01bdb826ba0d17f208087b765ed3167940a9bcfb087675e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9d2bc67f7d856e01bdb826ba0d17f208087b765ed3167940a9bcfb087675e1", kill_on_drop: false }`
[INFO] [stdout] bb9d2bc67f7d856e01bdb826ba0d17f208087b765ed3167940a9bcfb087675e1