[INFO] fetching crate erl_dist 0.7.0...
[INFO] checking erl_dist-0.7.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate erl_dist 0.7.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate erl_dist 0.7.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate erl_dist 0.7.0
[INFO] tweaked toml for crates.io crate erl_dist 0.7.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate erl_dist 0.7.0 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 erl_dist 0.7.0 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] a4d57213890abc0889d84e201c73f9fe6aaa69d422d960195e1e6df381a33e4a
[INFO] running `Command { std: "docker" "start" "-a" "a4d57213890abc0889d84e201c73f9fe6aaa69d422d960195e1e6df381a33e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4d57213890abc0889d84e201c73f9fe6aaa69d422d960195e1e6df381a33e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d57213890abc0889d84e201c73f9fe6aaa69d422d960195e1e6df381a33e4a", kill_on_drop: false }`
[INFO] [stdout] a4d57213890abc0889d84e201c73f9fe6aaa69d422d960195e1e6df381a33e4a
[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] 23d1495a47245908555700fa4732bf227089a7f9a6d8caeb41579d7a94bfbd26
[INFO] running `Command { std: "docker" "start" "-a" "23d1495a47245908555700fa4732bf227089a7f9a6d8caeb41579d7a94bfbd26", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking core2 v0.4.0
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking blocking v1.6.2
[INFO] [stderr]     Checking async-lock v3.4.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling serde_core v1.0.225
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking dary_heap v0.3.8
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking async-fs v2.2.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking md5 v0.8.0
[INFO] [stderr]     Checking orfail v1.1.0
[INFO] [stderr]     Checking noargs v0.4.1
[INFO] [stderr]     Checking libflate_lz77 v2.1.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking libflate v2.1.0
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking eetf v0.11.0
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking async-io v2.6.0
[INFO] [stderr]     Checking async-signal v0.2.13
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-process v2.5.0
[INFO] [stderr]     Checking smol v2.0.2
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking erl_dist v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/handshake.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 31 |         .then(|a| a.value().parse())?;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `erl_dist` (example "handshake") due to 1 previous error
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> examples/epmd_cli.rs:24:19
[INFO] [stdout]    |
[INFO] [stdout] 24 |         .then(|a| a.value().parse())?;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[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]   --> examples/epmd_cli.rs:87:23
[INFO] [stdout]    |
[INFO] [stdout] 87 |             .then(|a| a.value().parse())?;
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `erl_dist` (example "epmd_cli") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> examples/epmd_cli.rs:142:23
[INFO] [stdout]     |
[INFO] [stdout] 142 |             .then(|a| a.value().parse())?;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/send_msg.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |         .then(|a| a.value().parse())?;
[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]   --> examples/send_msg.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 |         .then(|a| a.value().parse())?;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/send_msg.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |         .then(|a| a.value().parse())?;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `erl_dist` (example "send_msg") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> examples/recv_msg.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |         .then(|a| a.value().parse())?;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `erl_dist` (example "recv_msg") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "23d1495a47245908555700fa4732bf227089a7f9a6d8caeb41579d7a94bfbd26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d1495a47245908555700fa4732bf227089a7f9a6d8caeb41579d7a94bfbd26", kill_on_drop: false }`
[INFO] [stdout] 23d1495a47245908555700fa4732bf227089a7f9a6d8caeb41579d7a94bfbd26
