[INFO] cloning repository https://github.com/Nilstrieb/jsonformat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nilstrieb/jsonformat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Fjsonformat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Fjsonformat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d287c2769790df92a0c05693b14db868d38666d
[INFO] checking Nilstrieb/jsonformat 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%2FNilstrieb%2Fjsonformat" "/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/Nilstrieb/jsonformat
[INFO] finished tweaking git repo https://github.com/Nilstrieb/jsonformat
[INFO] tweaked toml for git repo https://github.com/Nilstrieb/jsonformat written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nilstrieb/jsonformat 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/Nilstrieb/jsonformat 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] 2f4cab7623dec86ba77561d0542f982af5986e73c85301dfba5f692cd5c39910
[INFO] running `Command { std: "docker" "start" "-a" "2f4cab7623dec86ba77561d0542f982af5986e73c85301dfba5f692cd5c39910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f4cab7623dec86ba77561d0542f982af5986e73c85301dfba5f692cd5c39910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f4cab7623dec86ba77561d0542f982af5986e73c85301dfba5f692cd5c39910", kill_on_drop: false }`
[INFO] [stdout] 2f4cab7623dec86ba77561d0542f982af5986e73c85301dfba5f692cd5c39910
[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] b1c1f58f67e7b6a052bb3785301416eb946f630cfb034a9bfe4f27fac60ecdbb
[INFO] running `Command { std: "docker" "start" "-a" "b1c1f58f67e7b6a052bb3785301416eb946f630cfb034a9bfe4f27fac60ecdbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking jsonformat v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking jsonformat-cli v1.0.0 (/opt/rustwide/workdir/jsonformat-cli)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> jsonformat-cli/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     indentation: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> jsonformat-cli/src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     output: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> jsonformat-cli/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     input: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonformat-cli` (bin "jsonformat" test) due to 3 previous errors
[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]   --> jsonformat-cli/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     indentation: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> jsonformat-cli/src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     output: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> jsonformat-cli/src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     input: Option<PathBuf>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jsonformat-cli` (bin "jsonformat") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b1c1f58f67e7b6a052bb3785301416eb946f630cfb034a9bfe4f27fac60ecdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c1f58f67e7b6a052bb3785301416eb946f630cfb034a9bfe4f27fac60ecdbb", kill_on_drop: false }`
[INFO] [stdout] b1c1f58f67e7b6a052bb3785301416eb946f630cfb034a9bfe4f27fac60ecdbb
