[INFO] fetching crate writedown 0.1.0...
[INFO] checking writedown-0.1.0 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 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 writedown 0.1.0
[INFO] finished tweaking crates.io crate writedown 0.1.0
[INFO] tweaked toml for crates.io crate writedown 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate writedown 0.1.0 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d1b91beee5a9a5dad6dc5db1c013a393cfe3c71efd0840ef9db1c6d3e1a9d0bf
[INFO] running `Command { std: "docker" "start" "-a" "d1b91beee5a9a5dad6dc5db1c013a393cfe3c71efd0840ef9db1c6d3e1a9d0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1b91beee5a9a5dad6dc5db1c013a393cfe3c71efd0840ef9db1c6d3e1a9d0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b91beee5a9a5dad6dc5db1c013a393cfe3c71efd0840ef9db1c6d3e1a9d0bf", kill_on_drop: false }`
[INFO] [stdout] d1b91beee5a9a5dad6dc5db1c013a393cfe3c71efd0840ef9db1c6d3e1a9d0bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 78f78a2230fa677eb3b5950071d5b0ddedbaa29ecc77a6628d05a2fe20a6ae66
[INFO] running `Command { std: "docker" "start" "-a" "78f78a2230fa677eb3b5950071d5b0ddedbaa29ecc77a6628d05a2fe20a6ae66", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking writedown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stdout] error: cannot find macro `assert_matches` in this scope
[INFO] [stdout]    --> src/parse.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         assert_matches!(&ast, ast::Node::Section(_));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 179 +     use core::assert_matches::assert_matches;
[INFO] [stdout]     |
[INFO] [stdout] 179 +     use std::assert_matches::assert_matches;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `writedown` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "78f78a2230fa677eb3b5950071d5b0ddedbaa29ecc77a6628d05a2fe20a6ae66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78f78a2230fa677eb3b5950071d5b0ddedbaa29ecc77a6628d05a2fe20a6ae66", kill_on_drop: false }`
[INFO] [stdout] 78f78a2230fa677eb3b5950071d5b0ddedbaa29ecc77a6628d05a2fe20a6ae66
[INFO] checking writedown-0.1.0 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 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 writedown 0.1.0
[INFO] finished tweaking crates.io crate writedown 0.1.0
[INFO] tweaked toml for crates.io crate writedown 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate writedown 0.1.0 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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5a98cd06553ea072390c5a39afdac49d1486eb83ac12f0e9c5014a40f089c981
[INFO] running `Command { std: "docker" "start" "-a" "5a98cd06553ea072390c5a39afdac49d1486eb83ac12f0e9c5014a40f089c981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a98cd06553ea072390c5a39afdac49d1486eb83ac12f0e9c5014a40f089c981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a98cd06553ea072390c5a39afdac49d1486eb83ac12f0e9c5014a40f089c981", kill_on_drop: false }`
[INFO] [stdout] 5a98cd06553ea072390c5a39afdac49d1486eb83ac12f0e9c5014a40f089c981
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 487b2593296468a05218eeb8ab17c44e455a1bc6c806c516d2f249d865a2797d
[INFO] running `Command { std: "docker" "start" "-a" "487b2593296468a05218eeb8ab17c44e455a1bc6c806c516d2f249d865a2797d", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "487b2593296468a05218eeb8ab17c44e455a1bc6c806c516d2f249d865a2797d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "487b2593296468a05218eeb8ab17c44e455a1bc6c806c516d2f249d865a2797d", kill_on_drop: false }`
[INFO] [stdout] 487b2593296468a05218eeb8ab17c44e455a1bc6c806c516d2f249d865a2797d