[INFO] cloning repository https://github.com/rdelfin/zeromq_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rdelfin/zeromq_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdelfin%2Fzeromq_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frdelfin%2Fzeromq_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b075ba977fd5c2b535d7166c77787b0923b85b02
[INFO] checking rdelfin/zeromq_test 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%2Frdelfin%2Fzeromq_test" "/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/rdelfin/zeromq_test
[INFO] finished tweaking git repo https://github.com/rdelfin/zeromq_test
[INFO] tweaked toml for git repo https://github.com/rdelfin/zeromq_test written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rdelfin/zeromq_test 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/rdelfin/zeromq_test 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-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] f4fa64296a6f0c23d07d19bcc8c111002e00432171278aee12717b22998c985c
[INFO] running `Command { std: "docker" "start" "-a" "f4fa64296a6f0c23d07d19bcc8c111002e00432171278aee12717b22998c985c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4fa64296a6f0c23d07d19bcc8c111002e00432171278aee12717b22998c985c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fa64296a6f0c23d07d19bcc8c111002e00432171278aee12717b22998c985c", kill_on_drop: false }`
[INFO] [stdout] f4fa64296a6f0c23d07d19bcc8c111002e00432171278aee12717b22998c985c
[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] 13c5397a35cee46a3027e9d6118ba592d12923c2eb3a2ba1af5f64c13fe39a65
[INFO] running `Command { std: "docker" "start" "-a" "13c5397a35cee46a3027e9d6118ba592d12923c2eb3a2ba1af5f64c13fe39a65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling capnp v0.14.0
[INFO] [stderr]    Compiling multimap v0.8.2
[INFO] [stderr]    Compiling zmq v0.9.2 (https://github.com/erickt/rust-zmq?rev=eede4315e10eccddec4348561c42ded534e6001e#eede4315)
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling zeromq-src v0.1.10+4.3.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling capnpc v0.14.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling zmq-sys v0.11.0 (https://github.com/erickt/rust-zmq?rev=eede4315e10eccddec4348561c42ded534e6001e#eede4315)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]     Checking raw_sync v0.1.5
[INFO] [stderr]     Checking shared_memory v0.11.4
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling which v4.0.2
[INFO] [stderr]    Compiling prost-build v0.7.0
[INFO] [stderr]    Compiling prost v0.7.0
[INFO] [stderr]    Compiling prost-types v0.7.0
[INFO] [stderr]    Compiling zeromq_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Timeout`
[INFO] [stdout]  --> src/bin/shmem_sub.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use raw_sync::{events::*, Timeout};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Timeout`
[INFO] [stdout]  --> src/bin/shmem_sub.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use raw_sync::{events::*, Timeout};
[INFO] [stdout]   |                           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/pub.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     #[structopt(short = "p", long)]
[INFO] [stdout] 16 | |     image_path: PathBuf,
[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]   --> src/bin/pub.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     #[structopt(short, long)]
[INFO] [stdout] 19 | |     extension: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/bin/pub.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | /     #[structopt(short = "p", long)]
[INFO] [stdout] 16 | |     image_path: PathBuf,
[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]   --> src/bin/pub.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     #[structopt(short, long)]
[INFO] [stdout] 19 | |     extension: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zeromq_test` (bin "pub") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `zeromq_test` (bin "pub" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "13c5397a35cee46a3027e9d6118ba592d12923c2eb3a2ba1af5f64c13fe39a65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c5397a35cee46a3027e9d6118ba592d12923c2eb3a2ba1af5f64c13fe39a65", kill_on_drop: false }`
[INFO] [stdout] 13c5397a35cee46a3027e9d6118ba592d12923c2eb3a2ba1af5f64c13fe39a65