[INFO] updating cached repository https://github.com/c0deaddict/aoc2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16ea91d95eedddb5174fb387677930ec10fd62ee
[INFO] checking c0deaddict/aoc2020/16ea91d95eedddb5174fb387677930ec10fd62ee against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0deaddict%2Faoc2020" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/c0deaddict/aoc2020 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/c0deaddict/aoc2020
[INFO] finished tweaking git repo https://github.com/c0deaddict/aoc2020
[INFO] tweaked toml for git repo https://github.com/c0deaddict/aoc2020 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/c0deaddict/aoc2020 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef57d2a52a086e6520dcc002bdd462aed2a4458acad1550753e9ed3134ef50bc
[INFO] running `Command { std: "docker" "start" "-a" "ef57d2a52a086e6520dcc002bdd462aed2a4458acad1550753e9ed3134ef50bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef57d2a52a086e6520dcc002bdd462aed2a4458acad1550753e9ed3134ef50bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef57d2a52a086e6520dcc002bdd462aed2a4458acad1550753e9ed3134ef50bc", kill_on_drop: false }`
[INFO] [stdout] ef57d2a52a086e6520dcc002bdd462aed2a4458acad1550753e9ed3134ef50bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8d1e85cf1679d53bdc3169ee4131dd3f292802b92dc9d25f97d0adaa5e7b776
[INFO] running `Command { std: "docker" "start" "-a" "a8d1e85cf1679d53bdc3169ee4131dd3f292802b92dc9d25f97d0adaa5e7b776", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking day_12 v0.1.0 (/opt/rustwide/workdir/days/day_12)
[INFO] [stderr]     Checking day_11 v0.1.0 (/opt/rustwide/workdir/days/day_11)
[INFO] [stderr]     Checking day_01 v0.1.0 (/opt/rustwide/workdir/days/day_01)
[INFO] [stderr]     Checking day_03 v0.1.0 (/opt/rustwide/workdir/days/day_03)
[INFO] [stderr]     Checking day_09 v0.1.0 (/opt/rustwide/workdir/days/day_09)
[INFO] [stderr]     Checking day_10 v0.1.0 (/opt/rustwide/workdir/days/day_10)
[INFO] [stderr]     Checking day_08 v0.1.0 (/opt/rustwide/workdir/days/day_08)
[INFO] [stderr]     Checking day_07 v0.1.0 (/opt/rustwide/workdir/days/day_07)
[INFO] [stderr]     Checking day_05 v0.1.0 (/opt/rustwide/workdir/days/day_05)
[INFO] [stderr]     Checking day_20 v0.1.0 (/opt/rustwide/workdir/days/day_20)
[INFO] [stderr]     Checking day_02 v0.1.0 (/opt/rustwide/workdir/days/day_02)
[INFO] [stderr]     Checking day_19 v0.1.0 (/opt/rustwide/workdir/days/day_19)
[INFO] [stderr]     Checking day_21 v0.1.0 (/opt/rustwide/workdir/days/day_21)
[INFO] [stderr]     Checking day_23 v0.1.0 (/opt/rustwide/workdir/days/day_23)
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> days/day_02/src/main.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .map(|l| re.captures(l).unwrap())
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]    = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day_18 v0.1.0 (/opt/rustwide/workdir/days/day_18)
[INFO] [stderr] error: could not compile `day_02` (bin "day_02") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> days/day_21/src/main.rs:51:29
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     Some(alg.clone())
[INFO] [stdout]    |                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> days/day_21/src/main.rs:59:46
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let ing = ings.iter().next().unwrap().clone();
[INFO] [stdout]    |                                              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a8d1e85cf1679d53bdc3169ee4131dd3f292802b92dc9d25f97d0adaa5e7b776", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d1e85cf1679d53bdc3169ee4131dd3f292802b92dc9d25f97d0adaa5e7b776", kill_on_drop: false }`
[INFO] [stdout] a8d1e85cf1679d53bdc3169ee4131dd3f292802b92dc9d25f97d0adaa5e7b776