[INFO] cloning repository https://github.com/NieDzejkob/isabelle-markup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NieDzejkob/isabelle-markup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Fisabelle-markup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Fisabelle-markup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7c1039288e1dc522094d1fd22260a64167b7fdef
[INFO] checking NieDzejkob/isabelle-markup/7c1039288e1dc522094d1fd22260a64167b7fdef against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNieDzejkob%2Fisabelle-markup" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NieDzejkob/isabelle-markup on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NieDzejkob/isabelle-markup
[INFO] finished tweaking git repo https://github.com/NieDzejkob/isabelle-markup
[INFO] tweaked toml for git repo https://github.com/NieDzejkob/isabelle-markup written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/NieDzejkob/isabelle-markup 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55177a2f2eeb1f5e7b3902b09bf876dd0c1c42563f6c0f3c2171fd720e6254c1
[INFO] running `Command { std: "docker" "start" "-a" "55177a2f2eeb1f5e7b3902b09bf876dd0c1c42563f6c0f3c2171fd720e6254c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55177a2f2eeb1f5e7b3902b09bf876dd0c1c42563f6c0f3c2171fd720e6254c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55177a2f2eeb1f5e7b3902b09bf876dd0c1c42563f6c0f3c2171fd720e6254c1", kill_on_drop: false }`
[INFO] [stdout] 55177a2f2eeb1f5e7b3902b09bf876dd0c1c42563f6c0f3c2171fd720e6254c1
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff8191ca71fc7b879374ea69c239269893f39638f39398dd739d9b3275aa60c9
[INFO] running `Command { std: "docker" "start" "-a" "ff8191ca71fc7b879374ea69c239269893f39638f39398dd739d9b3275aa60c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]     Checking utf8-width v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking html-escape v0.2.6
[INFO] [stderr]     Checking yxml v0.1.0 (/opt/rustwide/workdir/yxml)
[INFO] [stderr]     Checking vec_mut_scan v0.3.0 (https://github.com/NieDzejkob/vec_mut_scan?branch=main#719e4691)
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]     Checking argh v0.1.4
[INFO] [stderr]     Checking isabelle-markup v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.24s
[INFO] running `Command { std: "docker" "inspect" "ff8191ca71fc7b879374ea69c239269893f39638f39398dd739d9b3275aa60c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff8191ca71fc7b879374ea69c239269893f39638f39398dd739d9b3275aa60c9", kill_on_drop: false }`
[INFO] [stdout] ff8191ca71fc7b879374ea69c239269893f39638f39398dd739d9b3275aa60c9