[INFO] fetching crate serde_dynamic_typing 0.1.1...
[INFO] checking serde_dynamic_typing-0.1.1 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate serde_dynamic_typing 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate serde_dynamic_typing 0.1.1 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dynamic_typing 0.1.1
[INFO] finished tweaking crates.io crate serde_dynamic_typing 0.1.1
[INFO] tweaked toml for crates.io crate serde_dynamic_typing 0.1.1 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" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding ebacktrace v0.2.0 (latest: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ebacktrace v0.2.0
[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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e742b32e1a5ec0cb6ba663613ae7422502a6ca13d13dc5aa2d5c3506000964d
[INFO] running `Command { std: "docker" "start" "-a" "3e742b32e1a5ec0cb6ba663613ae7422502a6ca13d13dc5aa2d5c3506000964d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e742b32e1a5ec0cb6ba663613ae7422502a6ca13d13dc5aa2d5c3506000964d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e742b32e1a5ec0cb6ba663613ae7422502a6ca13d13dc5aa2d5c3506000964d", kill_on_drop: false }`
[INFO] [stdout] 3e742b32e1a5ec0cb6ba663613ae7422502a6ca13d13dc5aa2d5c3506000964d
[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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2a759880985fe0ec76e8b47c9a982e35f2594d24faef67fb595786b08a6ec21
[INFO] running `Command { std: "docker" "start" "-a" "f2a759880985fe0ec76e8b47c9a982e35f2594d24faef67fb595786b08a6ec21", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.84
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking ebacktrace v0.2.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking serde_dynamic_typing v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0407]: method `backtrace` is not a member of trait `std::error::Error`
[INFO] [stdout]   --> src/error.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | define_error!(ErrorImpl);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `define_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_dynamic_typing` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f2a759880985fe0ec76e8b47c9a982e35f2594d24faef67fb595786b08a6ec21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a759880985fe0ec76e8b47c9a982e35f2594d24faef67fb595786b08a6ec21", kill_on_drop: false }`
[INFO] [stdout] f2a759880985fe0ec76e8b47c9a982e35f2594d24faef67fb595786b08a6ec21
[INFO] checking serde_dynamic_typing-0.1.1 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate serde_dynamic_typing 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serde_dynamic_typing 0.1.1 on toolchain dae34b759e282c069aa28752564694effd121a63
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_dynamic_typing 0.1.1
[INFO] finished tweaking crates.io crate serde_dynamic_typing 0.1.1
[INFO] tweaked toml for crates.io crate serde_dynamic_typing 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding ebacktrace v0.2.0 (latest: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8facc52b1e2bb9103a0c5169dacc850e5fc67e331d78b0d129f137a3fd971b16
[INFO] running `Command { std: "docker" "start" "-a" "8facc52b1e2bb9103a0c5169dacc850e5fc67e331d78b0d129f137a3fd971b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8facc52b1e2bb9103a0c5169dacc850e5fc67e331d78b0d129f137a3fd971b16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8facc52b1e2bb9103a0c5169dacc850e5fc67e331d78b0d129f137a3fd971b16", kill_on_drop: false }`
[INFO] [stdout] 8facc52b1e2bb9103a0c5169dacc850e5fc67e331d78b0d129f137a3fd971b16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5413111faf033b7fa47f607d1dd014994eafc965525a4c2f419b0d766c9cc308
[INFO] running `Command { std: "docker" "start" "-a" "5413111faf033b7fa47f607d1dd014994eafc965525a4c2f419b0d766c9cc308", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "5413111faf033b7fa47f607d1dd014994eafc965525a4c2f419b0d766c9cc308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5413111faf033b7fa47f607d1dd014994eafc965525a4c2f419b0d766c9cc308", kill_on_drop: false }`
[INFO] [stdout] 5413111faf033b7fa47f607d1dd014994eafc965525a4c2f419b0d766c9cc308