[INFO] fetching crate writedown 0.1.0...
[INFO] checking writedown-0.1.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "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-3-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f0846697126dc28092bbf338f785a499dfa240b919dd250ed76cef00ee3704d
[INFO] running `Command { std: "docker" "start" "-a" "4f0846697126dc28092bbf338f785a499dfa240b919dd250ed76cef00ee3704d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f0846697126dc28092bbf338f785a499dfa240b919dd250ed76cef00ee3704d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f0846697126dc28092bbf338f785a499dfa240b919dd250ed76cef00ee3704d", kill_on_drop: false }`
[INFO] [stdout] 4f0846697126dc28092bbf338f785a499dfa240b919dd250ed76cef00ee3704d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb8195b8b191fad392ef668878f81295494a8cff57a8490363e77e487674feeb
[INFO] running `Command { std: "docker" "start" "-a" "fb8195b8b191fad392ef668878f81295494a8cff57a8490363e77e487674feeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]     Checking writedown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Fn` is imported redundantly
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Fn;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Fn` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stdout] warning: the item `writedown` is imported redundantly
[INFO] [stdout]  --> examples/simple_html.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use writedown;
[INFO] [stdout]   |     ^^^^^^^^^ the item `writedown` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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] warning: the item `Fn` is imported redundantly
[INFO] [stdout]  --> src/token.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Fn;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/af4a5a13a15fa0c60e06321077ef452f769b42fd/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Fn` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `writedown` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fb8195b8b191fad392ef668878f81295494a8cff57a8490363e77e487674feeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8195b8b191fad392ef668878f81295494a8cff57a8490363e77e487674feeb", kill_on_drop: false }`
[INFO] [stdout] fb8195b8b191fad392ef668878f81295494a8cff57a8490363e77e487674feeb
[INFO] checking writedown-0.1.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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-3-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19b2606b66d4620dd20e54b4564fbdf8b95e3b0f29be0f6b27fbb19f5912097b
[INFO] running `Command { std: "docker" "start" "-a" "19b2606b66d4620dd20e54b4564fbdf8b95e3b0f29be0f6b27fbb19f5912097b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19b2606b66d4620dd20e54b4564fbdf8b95e3b0f29be0f6b27fbb19f5912097b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b2606b66d4620dd20e54b4564fbdf8b95e3b0f29be0f6b27fbb19f5912097b", kill_on_drop: false }`
[INFO] [stdout] 19b2606b66d4620dd20e54b4564fbdf8b95e3b0f29be0f6b27fbb19f5912097b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bb4e720e41547d7b5d6c8d05ec5692beb44c277247f4a17d4d04160efc35b6c
[INFO] running `Command { std: "docker" "start" "-a" "1bb4e720e41547d7b5d6c8d05ec5692beb44c277247f4a17d4d04160efc35b6c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "1bb4e720e41547d7b5d6c8d05ec5692beb44c277247f4a17d4d04160efc35b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bb4e720e41547d7b5d6c8d05ec5692beb44c277247f4a17d4d04160efc35b6c", kill_on_drop: false }`
[INFO] [stdout] 1bb4e720e41547d7b5d6c8d05ec5692beb44c277247f4a17d4d04160efc35b6c