[INFO] cloning repository https://github.com/winebarrel/jlsort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/winebarrel/jlsort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinebarrel%2Fjlsort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinebarrel%2Fjlsort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b613f55d771e461728269327ce21f17b25bcdaa
[INFO] checking winebarrel/jlsort against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinebarrel%2Fjlsort" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/winebarrel/jlsort
[INFO] finished tweaking git repo https://github.com/winebarrel/jlsort
[INFO] tweaked toml for git repo https://github.com/winebarrel/jlsort written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/winebarrel/jlsort on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/winebarrel/jlsort 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c20900001a8414aa791a744537587cb29f413a422cab8b99d5ad4be2bd7906bc
[INFO] running `Command { std: "docker" "start" "-a" "c20900001a8414aa791a744537587cb29f413a422cab8b99d5ad4be2bd7906bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c20900001a8414aa791a744537587cb29f413a422cab8b99d5ad4be2bd7906bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c20900001a8414aa791a744537587cb29f413a422cab8b99d5ad4be2bd7906bc", kill_on_drop: false }`
[INFO] [stdout] c20900001a8414aa791a744537587cb29f413a422cab8b99d5ad4be2bd7906bc
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50d8061cbfe15cb9fd9c7c80b2b6f2408c1fb6faa10d259d4849789379151468
[INFO] running `Command { std: "docker" "start" "-a" "50d8061cbfe15cb9fd9c7c80b2b6f2408c1fb6faa10d259d4849789379151468", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking ex_merge_sort_by_key v0.2.0
[INFO] [stderr]     Checking jlsort v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |       let s_cap = matches
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 59 | |         .opt_get_default("c", DEFAULT_CAPACITY.to_string())
[INFO] [stdout]    | |___________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jlsort` (bin "jlsort" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |       let s_cap = matches
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 59 | |         .opt_get_default("c", DEFAULT_CAPACITY.to_string())
[INFO] [stdout]    | |___________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jlsort` (bin "jlsort") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "50d8061cbfe15cb9fd9c7c80b2b6f2408c1fb6faa10d259d4849789379151468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d8061cbfe15cb9fd9c7c80b2b6f2408c1fb6faa10d259d4849789379151468", kill_on_drop: false }`
[INFO] [stdout] 50d8061cbfe15cb9fd9c7c80b2b6f2408c1fb6faa10d259d4849789379151468