[INFO] fetching crate atelier_json 0.2.7...
[INFO] checking atelier_json-0.2.7 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate atelier_json 0.2.7 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate atelier_json 0.2.7
[INFO] finished tweaking crates.io crate atelier_json 0.2.7
[INFO] tweaked toml for crates.io crate atelier_json 0.2.7 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate atelier_json 0.2.7 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 crates.io crate atelier_json 0.2.7 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f444b28b03477adf60f5fc712b012dfd7dfb9cc91f44e780740013c1fa5c925d
[INFO] running `Command { std: "docker" "start" "-a" "f444b28b03477adf60f5fc712b012dfd7dfb9cc91f44e780740013c1fa5c925d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f444b28b03477adf60f5fc712b012dfd7dfb9cc91f44e780740013c1fa5c925d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f444b28b03477adf60f5fc712b012dfd7dfb9cc91f44e780740013c1fa5c925d", kill_on_drop: false }`
[INFO] [stdout] f444b28b03477adf60f5fc712b012dfd7dfb9cc91f44e780740013c1fa5c925d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 17a1e3a64caee7dc07abd5e872b20979955d383b160790ec99a8b6ba9cf1beb4
[INFO] running `Command { std: "docker" "start" "-a" "17a1e3a64caee7dc07abd5e872b20979955d383b160790ec99a8b6ba9cf1beb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking rustc-demangle v0.1.20
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking atelier_core v0.2.22
[INFO] [stderr]     Checking assert-json-diff v2.0.1
[INFO] [stderr]     Checking atelier_test v0.1.4
[INFO] [stderr]     Checking atelier_json v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> tests/json_success_tests.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let mut path = PathBuf::from_str(MANIFEST_DIR).unwrap();
[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 `atelier_json` (test "json_success_tests") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "17a1e3a64caee7dc07abd5e872b20979955d383b160790ec99a8b6ba9cf1beb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a1e3a64caee7dc07abd5e872b20979955d383b160790ec99a8b6ba9cf1beb4", kill_on_drop: false }`
[INFO] [stdout] 17a1e3a64caee7dc07abd5e872b20979955d383b160790ec99a8b6ba9cf1beb4
