[INFO] cloning repository https://github.com/Pluriscient/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pluriscient/aoc2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Faoc2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Faoc2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 036f665f9ee765ebf032fd01defbb70e64f86626
[INFO] checking Pluriscient/aoc2020 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPluriscient%2Faoc2020" "/workspace/builds/worker-56/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-56/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Pluriscient/aoc2020 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Pluriscient/aoc2020
[INFO] finished tweaking git repo https://github.com/Pluriscient/aoc2020
[INFO] tweaked toml for git repo https://github.com/Pluriscient/aoc2020 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate git repo https://github.com/Pluriscient/aoc2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.13.0
[INFO] [stderr]   Downloaded modinverse v0.1.1
[INFO] [stderr]   Downloaded factorial v0.2.0
[INFO] [stderr]   Downloaded prgrs v0.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f3060d056472ab946a2894fe83491846a018d5fa143a9c2c8752e9856869b2c
[INFO] running `Command { std: "docker" "start" "-a" "8f3060d056472ab946a2894fe83491846a018d5fa143a9c2c8752e9856869b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f3060d056472ab946a2894fe83491846a018d5fa143a9c2c8752e9856869b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3060d056472ab946a2894fe83491846a018d5fa143a9c2c8752e9856869b2c", kill_on_drop: false }`
[INFO] [stdout] 8f3060d056472ab946a2894fe83491846a018d5fa143a9c2c8752e9856869b2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a8d43f9756f90b282cb8be2a272ce5c40452aba09e598722053a2925aefa87c
[INFO] running `Command { std: "docker" "start" "-a" "1a8d43f9756f90b282cb8be2a272ce5c40452aba09e598722053a2925aefa87c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking terminal_size v0.1.15
[INFO] [stderr]     Checking factorial v0.2.0
[INFO] [stderr]    Compiling toml v0.5.7
[INFO] [stderr]     Checking modinverse v0.1.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]     Checking prgrs v0.6.4
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/years/year2020/day20.rs (3 fixes)
[INFO] [stderr]        Fixed src/years/year2020/day17.rs (1 fix)
[INFO] [stderr]        Fixed src/years/year2020/day15.rs (4 fixes)
[INFO] [stderr]        Fixed src/years/year2020/day18.rs (2 fixes)
[INFO] [stderr]        Fixed src/years/year2020/day16.rs (3 fixes)
[INFO] [stderr]        Fixed src/years/year2020/day19.rs (9 fixes)
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]   --> src/years/year2020/day17.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use itertools::Itertools;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `collect_vec` found for struct `Map` in the current scope
[INFO] [stdout]     --> src/years/year2020/day18.rs:108:18
[INFO] [stdout]      |
[INFO] [stdout] 108  |         Ok(lines.collect_vec())
[INFO] [stdout]      |                  ^^^^^^^^^^^ method not found in `Map<std::str::Lines<'_>, [closure@src/years/year2020/day18.rs:106:39: 106:56]>`
[INFO] [stdout]      |
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/itertools-0.9.0/src/lib.rs:1528:8
[INFO] [stdout]      |
[INFO] [stdout] 1528 |     fn collect_vec(self) -> Vec<Self::Item>
[INFO] [stdout]      |        ----------- the method is available for `Map<std::str::Lines<'_>, [closure@src/years/year2020/day18.rs:106:39: 106:56]>` here
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout]      = note: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]              `use itertools::Itertools;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aoc2020` due to 2 previous errors; 1 warning emitted
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "1a8d43f9756f90b282cb8be2a272ce5c40452aba09e598722053a2925aefa87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8d43f9756f90b282cb8be2a272ce5c40452aba09e598722053a2925aefa87c", kill_on_drop: false }`
[INFO] [stdout] 1a8d43f9756f90b282cb8be2a272ce5c40452aba09e598722053a2925aefa87c