[INFO] cloning repository https://github.com/Salaah01/rusty-pub-sub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Salaah01/rusty-pub-sub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSalaah01%2Frusty-pub-sub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSalaah01%2Frusty-pub-sub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7183afb82ea1ba55add781587840daf6fa608664
[INFO] checking Salaah01/rusty-pub-sub 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%2FSalaah01%2Frusty-pub-sub" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Salaah01/rusty-pub-sub
[INFO] finished tweaking git repo https://github.com/Salaah01/rusty-pub-sub
[INFO] tweaked toml for git repo https://github.com/Salaah01/rusty-pub-sub written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Salaah01/rusty-pub-sub 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/Salaah01/rusty-pub-sub 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f62202ca771356ccdf7f49e7cba5c05e61898237d45e8fa3ee8d66075b207e21
[INFO] running `Command { std: "docker" "start" "-a" "f62202ca771356ccdf7f49e7cba5c05e61898237d45e8fa3ee8d66075b207e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f62202ca771356ccdf7f49e7cba5c05e61898237d45e8fa3ee8d66075b207e21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62202ca771356ccdf7f49e7cba5c05e61898237d45e8fa3ee8d66075b207e21", kill_on_drop: false }`
[INFO] [stdout] f62202ca771356ccdf7f49e7cba5c05e61898237d45e8fa3ee8d66075b207e21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fb7d1ebbb844dd644c8a57e319f7c5bb8fa5fdca1f2270164cf7ea33ea551083
[INFO] running `Command { std: "docker" "start" "-a" "fb7d1ebbb844dd644c8a57e319f7c5bb8fa5fdca1f2270164cf7ea33ea551083", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The hostname of the server
[INFO] [stdout] 13 | |     #[structopt(short = "H", long, default_value = "localhost")]
[INFO] [stdout] 14 | |     pub host: 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<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// Channel to subscribe to
[INFO] [stdout] 29 | |     #[structopt(short, long = "sub")]
[INFO] [stdout] 30 | |     pub subscribe: Vec<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Channel to unsubscribe from
[INFO] [stdout] 33 | |     #[structopt(short, long = "unsub")]
[INFO] [stdout] 34 | |     pub unsubscribe: Vec<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Channel on which to send a message. If not specified, the message will
[INFO] [stdout] 37 | |     /// be sent to the server without a channel specified.
[INFO] [stdout] 38 | |     #[structopt(short, long)]
[INFO] [stdout] 39 | |     pub channel: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Sends a message to the server
[INFO] [stdout] 42 | |     #[structopt(short, long = "msg")]
[INFO] [stdout] 43 | |     pub message: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// The hostname of the server
[INFO] [stdout] 13 | |     #[structopt(short = "H", long, default_value = "localhost")]
[INFO] [stdout] 14 | |     pub host: 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<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | /     /// Channel to subscribe to
[INFO] [stdout] 29 | |     #[structopt(short, long = "sub")]
[INFO] [stdout] 30 | |     pub subscribe: Vec<String>,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     /// Channel to unsubscribe from
[INFO] [stdout] 33 | |     #[structopt(short, long = "unsub")]
[INFO] [stdout] 34 | |     pub unsubscribe: Vec<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Channel on which to send a message. If not specified, the message will
[INFO] [stdout] 37 | |     /// be sent to the server without a channel specified.
[INFO] [stdout] 38 | |     #[structopt(short, long)]
[INFO] [stdout] 39 | |     pub channel: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> client/src/cli.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Sends a message to the server
[INFO] [stdout] 42 | |     #[structopt(short, long = "msg")]
[INFO] [stdout] 43 | |     pub message: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `client` (lib test) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `client` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "fb7d1ebbb844dd644c8a57e319f7c5bb8fa5fdca1f2270164cf7ea33ea551083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7d1ebbb844dd644c8a57e319f7c5bb8fa5fdca1f2270164cf7ea33ea551083", kill_on_drop: false }`
[INFO] [stdout] fb7d1ebbb844dd644c8a57e319f7c5bb8fa5fdca1f2270164cf7ea33ea551083
