[INFO] fetching crate dbg 1.0.4...
[INFO] testing dbg-1.0.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate dbg 1.0.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate dbg 1.0.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dbg 1.0.4
[INFO] finished tweaking crates.io crate dbg 1.0.4
[INFO] tweaked toml for crates.io crate dbg 1.0.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb235723029af1496db9ed16510ba2a5d7a5a941d91eb021397c3e7f61285cc8
[INFO] running `Command { std: "docker" "start" "-a" "eb235723029af1496db9ed16510ba2a5d7a5a941d91eb021397c3e7f61285cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb235723029af1496db9ed16510ba2a5d7a5a941d91eb021397c3e7f61285cc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb235723029af1496db9ed16510ba2a5d7a5a941d91eb021397c3e7f61285cc8", kill_on_drop: false }`
[INFO] [stdout] eb235723029af1496db9ed16510ba2a5d7a5a941d91eb021397c3e7f61285cc8
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a46a0e14ae753a3668a5479912dca18c59df955ba9a644859dd612442317db4
[INFO] running `Command { std: "docker" "start" "-a" "0a46a0e14ae753a3668a5479912dca18c59df955ba9a644859dd612442317db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbg v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "0a46a0e14ae753a3668a5479912dca18c59df955ba9a644859dd612442317db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a46a0e14ae753a3668a5479912dca18c59df955ba9a644859dd612442317db4", kill_on_drop: false }`
[INFO] [stdout] 0a46a0e14ae753a3668a5479912dca18c59df955ba9a644859dd612442317db4
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17a4f9d8d0edfecf996c97e6c8ec16e59f9db153aa44d81f29f1dfb8c1f66bd7
[INFO] running `Command { std: "docker" "start" "-a" "17a4f9d8d0edfecf996c97e6c8ec16e59f9db153aa44d81f29f1dfb8c1f66bd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbg v1.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `X` doesn't implement `Debug`
[INFO] [stdout]    --> src/lib.rs:86:62
[INFO] [stdout]     |
[INFO] [stdout] 86  |                     (if detailed { write!(&mut err, "{:#?}", _tmp) }
[INFO] [stdout]     |                                                              ^^^^ `X` cannot be formatted using `{:?}`
[INFO] [stdout] ...
[INFO] [stdout] 270 |         dbg!(&a);
[INFO] [stdout]     |         -------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `X`
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `X` or manually `impl Debug for X`
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `X` doesn't implement `Debug`
[INFO] [stdout]    --> src/lib.rs:87:62
[INFO] [stdout]     |
[INFO] [stdout] 87  |                     else         { write!(&mut err, "{:?}" , _tmp) }).unwrap();
[INFO] [stdout]     |                                                              ^^^^ `X` cannot be formatted using `{:?}`
[INFO] [stdout] ...
[INFO] [stdout] 270 |         dbg!(&a);
[INFO] [stdout]     |         -------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `Debug` is not implemented for `X`
[INFO] [stdout]     = note: add `#[derive(Debug)]` to `X` or manually `impl Debug for X`
[INFO] [stdout]     = note: this error originates in the macro `$crate::format_args` (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 `dbg` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "17a4f9d8d0edfecf996c97e6c8ec16e59f9db153aa44d81f29f1dfb8c1f66bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a4f9d8d0edfecf996c97e6c8ec16e59f9db153aa44d81f29f1dfb8c1f66bd7", kill_on_drop: false }`
[INFO] [stdout] 17a4f9d8d0edfecf996c97e6c8ec16e59f9db153aa44d81f29f1dfb8c1f66bd7