[INFO] cloning repository https://github.com/Lutetium-Vanadium/cargo-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lutetium-Vanadium/cargo-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLutetium-Vanadium%2Fcargo-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLutetium-Vanadium%2Fcargo-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea3bc16a5ca2712cb11da33a259ee3f3179e4705
[INFO] checking Lutetium-Vanadium/cargo-playground 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%2FLutetium-Vanadium%2Fcargo-playground" "/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/Lutetium-Vanadium/cargo-playground
[INFO] finished tweaking git repo https://github.com/Lutetium-Vanadium/cargo-playground
[INFO] tweaked toml for git repo https://github.com/Lutetium-Vanadium/cargo-playground written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Lutetium-Vanadium/cargo-playground 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/Lutetium-Vanadium/cargo-playground 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] 47979de2115be53688a96affba13f3e4ebef70817255e0798d0e91c54de5876e
[INFO] running `Command { std: "docker" "start" "-a" "47979de2115be53688a96affba13f3e4ebef70817255e0798d0e91c54de5876e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47979de2115be53688a96affba13f3e4ebef70817255e0798d0e91c54de5876e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47979de2115be53688a96affba13f3e4ebef70817255e0798d0e91c54de5876e", kill_on_drop: false }`
[INFO] [stdout] 47979de2115be53688a96affba13f3e4ebef70817255e0798d0e91c54de5876e
[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] da310039cabb67d0c33084a873e92adb72cb9686eb90d18662267a92e34bedce
[INFO] running `Command { std: "docker" "start" "-a" "da310039cabb67d0c33084a873e92adb72cb9686eb90d18662267a92e34bedce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking which v4.2.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]     Checking command-group v1.0.4
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking clearscreen v1.0.6
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]     Checking derive_builder v0.10.2
[INFO] [stderr]     Checking watchexec v1.17.1
[INFO] [stderr]     Checking cargo-playground v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         playground_id: 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: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// The editor to open the project in
[INFO] [stdout] 43 | |     #[structopt(short, long, env = "VISUAL", hide_env_values = true)]
[INFO] [stdout] 44 | |     pub editor: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /// Extra args (if any) to be supplied to the editor
[INFO] [stdout] 46 | |     #[structopt(short, long)]
[INFO] [stdout] 47 | |     pub args: Vec<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]  --> src/clean.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     /// A regex to match against playground names. If not provided, all will be deleted.
[INFO] [stdout] 8 | |     #[structopt(long, short)]
[INFO] [stdout] 9 | |     matches: Option<String>,
[INFO] [stdout]   | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// The name of the playground to create. If not supplied, the current timestamp will be used
[INFO] [stdout] 16 | |     #[structopt(short, long)]
[INFO] [stdout] 17 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-playground` (bin "cargo-playground" test) due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// The library to base main.rs on. If not provided, base Cargo main.rs will be used.
[INFO] [stdout] 27 | |     ///
[INFO] [stdout] 28 | |     /// Follows same format as dependencies. You do not need to repeat the library in dependencies,
[INFO] [stdout] 29 | |     /// as it is automatically added
[INFO] [stdout] 30 | |     #[structopt(short, long)]
[INFO] [stdout] 31 | |     template: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// The dependencies to add. It must be in the following format:
[INFO] [stdout] 33 | |     /// 1. <dep-name>
[INFO] [stdout] 34 | |     /// 2. <dep-name>=<dep-version>
[INFO] [stdout] 35 | |     #[structopt(name = "dependencies")]
[INFO] [stdout] 36 | |     deps: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/open/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// The name of the playground to open
[INFO] [stdout] 18 | |     pub(crate) name: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         playground_id: 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: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     /// The editor to open the project in
[INFO] [stdout] 43 | |     #[structopt(short, long, env = "VISUAL", hide_env_values = true)]
[INFO] [stdout] 44 | |     pub editor: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /// Extra args (if any) to be supplied to the editor
[INFO] [stdout] 46 | |     #[structopt(short, long)]
[INFO] [stdout] 47 | |     pub args: Vec<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]  --> src/clean.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     /// A regex to match against playground names. If not provided, all will be deleted.
[INFO] [stdout] 8 | |     #[structopt(long, short)]
[INFO] [stdout] 9 | |     matches: Option<String>,
[INFO] [stdout]   | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     /// The name of the playground to create. If not supplied, the current timestamp will be used
[INFO] [stdout] 16 | |     #[structopt(short, long)]
[INFO] [stdout] 17 | |     name: Option<String>,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// The library to base main.rs on. If not provided, base Cargo main.rs will be used.
[INFO] [stdout] 27 | |     ///
[INFO] [stdout] 28 | |     /// Follows same format as dependencies. You do not need to repeat the library in dependencies,
[INFO] [stdout] 29 | |     /// as it is automatically added
[INFO] [stdout] 30 | |     #[structopt(short, long)]
[INFO] [stdout] 31 | |     template: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/new/mod.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// The dependencies to add. It must be in the following format:
[INFO] [stdout] 33 | |     /// 1. <dep-name>
[INFO] [stdout] 34 | |     /// 2. <dep-name>=<dep-version>
[INFO] [stdout] 35 | |     #[structopt(name = "dependencies")]
[INFO] [stdout] 36 | |     deps: Vec<String>,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<String, Infallible>
[INFO] [stdout]   --> src/open/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// The name of the playground to open
[INFO] [stdout] 18 | |     pub(crate) name: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-playground` (bin "cargo-playground") due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "da310039cabb67d0c33084a873e92adb72cb9686eb90d18662267a92e34bedce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da310039cabb67d0c33084a873e92adb72cb9686eb90d18662267a92e34bedce", kill_on_drop: false }`
[INFO] [stdout] da310039cabb67d0c33084a873e92adb72cb9686eb90d18662267a92e34bedce
