[INFO] cloning repository https://github.com/joyent/smartos-lx-img-builder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joyent/smartos-lx-img-builder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Fsmartos-lx-img-builder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Fsmartos-lx-img-builder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79b4275965adb5b9075d01c373cc7e31dd93c617
[INFO] checking joyent/smartos-lx-img-builder 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%2Fjoyent%2Fsmartos-lx-img-builder" "/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/joyent/smartos-lx-img-builder
[INFO] finished tweaking git repo https://github.com/joyent/smartos-lx-img-builder
[INFO] tweaked toml for git repo https://github.com/joyent/smartos-lx-img-builder written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/joyent/smartos-lx-img-builder 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/joyent/smartos-lx-img-builder 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] 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] 5f9041fd91e03efa44dac0ff45321ff5283a76b09e29078010a716f2476cdc54
[INFO] running `Command { std: "docker" "start" "-a" "5f9041fd91e03efa44dac0ff45321ff5283a76b09e29078010a716f2476cdc54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f9041fd91e03efa44dac0ff45321ff5283a76b09e29078010a716f2476cdc54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f9041fd91e03efa44dac0ff45321ff5283a76b09e29078010a716f2476cdc54", kill_on_drop: false }`
[INFO] [stdout] 5f9041fd91e03efa44dac0ff45321ff5283a76b09e29078010a716f2476cdc54
[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] 84a53a0a9aa3f614874534530ee1b0f5bb5010d3ac39214fe6b5a47a8e0079e8
[INFO] running `Command { std: "docker" "start" "-a" "84a53a0a9aa3f614874534530ee1b0f5bb5010d3ac39214fe6b5a47a8e0079e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking os-release v0.1.0
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking zonename v0.1.1
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking uuid v0.8.2
[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 smartos-lx-img-builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[structopt(
[INFO] [stdout] 17 | |         name = "tar",
[INFO] [stdout] 18 | |         long = "tar",
[INFO] [stdout] 19 | |         short = "t",
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     )]
[INFO] [stdout] 23 | |     pub tar: 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/cli.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(
[INFO] [stdout] 25 | |         name = "kernel",
[INFO] [stdout] 26 | |         long = "kernel",
[INFO] [stdout] 27 | |         short = "k",
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | |     )]
[INFO] [stdout] 31 | |     pub kernel: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     #[structopt(
[INFO] [stdout] 33 | |         name = "min_platform",
[INFO] [stdout] 34 | |         long = "min",
[INFO] [stdout] 35 | |         short = "m",
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     )]
[INFO] [stdout] 39 | |     pub min_platform: String,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     #[structopt(
[INFO] [stdout] 41 | |         name = "description",
[INFO] [stdout] 42 | |         long = "description",
[INFO] [stdout] 43 | |         short = "d",
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     )]
[INFO] [stdout] 47 | |     pub description: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     #[structopt(
[INFO] [stdout] 49 | |         name = "url",
[INFO] [stdout] 50 | |         long = "url",
[INFO] [stdout] 51 | |         short = "u",
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     )]
[INFO] [stdout] 55 | |     pub url: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     #[structopt(
[INFO] [stdout] 57 | |         name = "image_name",
[INFO] [stdout] 58 | |         long = "image_name",
[INFO] [stdout] 59 | |         short = "i",
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     )]
[INFO] [stdout] 63 | |     pub image_name: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | /     #[structopt(
[INFO] [stdout] 65 | |         name = "zfs_parent",
[INFO] [stdout] 66 | |         long = "zfs-parent",
[INFO] [stdout] 67 | |         short = "z",
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     )]
[INFO] [stdout] 71 | |     pub zfs_parent: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smartos-lx-img-builder` (bin "smartos-lx-img-builder") due to 7 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/cli.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /     #[structopt(
[INFO] [stdout] 17 | |         name = "tar",
[INFO] [stdout] 18 | |         long = "tar",
[INFO] [stdout] 19 | |         short = "t",
[INFO] [stdout] ...  |
[INFO] [stdout] 22 | |     )]
[INFO] [stdout] 23 | |     pub tar: 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/cli.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     #[structopt(
[INFO] [stdout] 25 | |         name = "kernel",
[INFO] [stdout] 26 | |         long = "kernel",
[INFO] [stdout] 27 | |         short = "k",
[INFO] [stdout] ...  |
[INFO] [stdout] 30 | |     )]
[INFO] [stdout] 31 | |     pub kernel: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | /     #[structopt(
[INFO] [stdout] 33 | |         name = "min_platform",
[INFO] [stdout] 34 | |         long = "min",
[INFO] [stdout] 35 | |         short = "m",
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     )]
[INFO] [stdout] 39 | |     pub min_platform: String,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     #[structopt(
[INFO] [stdout] 41 | |         name = "description",
[INFO] [stdout] 42 | |         long = "description",
[INFO] [stdout] 43 | |         short = "d",
[INFO] [stdout] ...  |
[INFO] [stdout] 46 | |     )]
[INFO] [stdout] 47 | |     pub description: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     #[structopt(
[INFO] [stdout] 49 | |         name = "url",
[INFO] [stdout] 50 | |         long = "url",
[INFO] [stdout] 51 | |         short = "u",
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     )]
[INFO] [stdout] 55 | |     pub url: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     #[structopt(
[INFO] [stdout] 57 | |         name = "image_name",
[INFO] [stdout] 58 | |         long = "image_name",
[INFO] [stdout] 59 | |         short = "i",
[INFO] [stdout] ...  |
[INFO] [stdout] 62 | |     )]
[INFO] [stdout] 63 | |     pub image_name: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli.rs:64:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | /     #[structopt(
[INFO] [stdout] 65 | |         name = "zfs_parent",
[INFO] [stdout] 66 | |         long = "zfs-parent",
[INFO] [stdout] 67 | |         short = "z",
[INFO] [stdout] ...  |
[INFO] [stdout] 70 | |     )]
[INFO] [stdout] 71 | |     pub zfs_parent: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smartos-lx-img-builder` (bin "smartos-lx-img-builder" test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "84a53a0a9aa3f614874534530ee1b0f5bb5010d3ac39214fe6b5a47a8e0079e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84a53a0a9aa3f614874534530ee1b0f5bb5010d3ac39214fe6b5a47a8e0079e8", kill_on_drop: false }`
[INFO] [stdout] 84a53a0a9aa3f614874534530ee1b0f5bb5010d3ac39214fe6b5a47a8e0079e8