[INFO] fetching crate pssh-rs 0.5.1...
[INFO] checking pssh-rs-0.5.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pssh-rs 0.5.1 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate pssh-rs 0.5.1
[INFO] finished tweaking crates.io crate pssh-rs 0.5.1
[INFO] tweaked toml for crates.io crate pssh-rs 0.5.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pssh-rs 0.5.1 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 pssh-rs 0.5.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 443ceb6ab76f2e685605003bd09e470fd43a467719a4c4d0c978b7d2e638b1ae
[INFO] running `Command { std: "docker" "start" "-a" "443ceb6ab76f2e685605003bd09e470fd43a467719a4c4d0c978b7d2e638b1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "443ceb6ab76f2e685605003bd09e470fd43a467719a4c4d0c978b7d2e638b1ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443ceb6ab76f2e685605003bd09e470fd43a467719a4c4d0c978b7d2e638b1ae", kill_on_drop: false }`
[INFO] [stdout] 443ceb6ab76f2e685605003bd09e470fd43a467719a4c4d0c978b7d2e638b1ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a7e595173a2532caf71e422163319874cb6a6dd657734f0f846a824329845a50
[INFO] running `Command { std: "docker" "start" "-a" "a7e595173a2532caf71e422163319874cb6a6dd657734f0f846a824329845a50", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.213
[INFO] [stderr]    Compiling anyhow v1.0.91
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling openssl-src v300.4.0+3.4.0
[INFO] [stderr]    Compiling libz-sys v1.1.20
[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]    Compiling libssh2-sys v0.3.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking ssh2 v0.9.4
[INFO] [stderr]     Checking pssh-rs v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// section in toml file
[INFO] [stdout] 18 | |     #[structopt(short = "s", long)]
[INFO] [stdout] 19 | |     section: 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         /// The command to run remotely
[INFO] [stdout] 41 | |         command: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pssh-rs` (bin "pssh-rs") due to 2 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]   --> src/args.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// section in toml file
[INFO] [stdout] 18 | |     #[structopt(short = "s", long)]
[INFO] [stdout] 19 | |     section: 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         /// The command to run remotely
[INFO] [stdout] 41 | |         command: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pssh-rs` (bin "pssh-rs" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a7e595173a2532caf71e422163319874cb6a6dd657734f0f846a824329845a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e595173a2532caf71e422163319874cb6a6dd657734f0f846a824329845a50", kill_on_drop: false }`
[INFO] [stdout] a7e595173a2532caf71e422163319874cb6a6dd657734f0f846a824329845a50