[INFO] fetching crate irk 0.1.1...
[INFO] checking irk-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate irk 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate irk 0.1.1
[INFO] finished tweaking crates.io crate irk 0.1.1
[INFO] tweaked toml for crates.io crate irk 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate irk 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 23f6e6d060202661c5229e5b0fb687f44a9b8728fce62e66bf29de1ffc8ecc17
[INFO] running `Command { std: "docker" "start" "-a" "23f6e6d060202661c5229e5b0fb687f44a9b8728fce62e66bf29de1ffc8ecc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23f6e6d060202661c5229e5b0fb687f44a9b8728fce62e66bf29de1ffc8ecc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23f6e6d060202661c5229e5b0fb687f44a9b8728fce62e66bf29de1ffc8ecc17", kill_on_drop: false }`
[INFO] [stdout] 23f6e6d060202661c5229e5b0fb687f44a9b8728fce62e66bf29de1ffc8ecc17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ad395750b3557fa7245976d89f86c9ce0b62035a6d05707287ff07d1684539dd
[INFO] running `Command { std: "docker" "start" "-a" "ad395750b3557fa7245976d89f86c9ce0b62035a6d05707287ff07d1684539dd", kill_on_drop: false }`
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking irk v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/proto/ser.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn to_message(&self) -> Result<Message> {
[INFO] [stdout]    |                       ^^^^^            ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn to_message(&self) -> Result<Message<'_>> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/proto/ser.rs:25:23
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn to_message(&self) -> Result<Message> {
[INFO] [stdout]    |                       ^^^^^            ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                       |
[INFO] [stdout]    |                       the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn to_message(&self) -> Result<Message<'_>> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:95:30
[INFO] [stdout]     |
[INFO] [stdout]  95 |                   $(assert_eq!($in.try_into(), $out);)*
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:102:44
[INFO] [stdout]     |
[INFO] [stdout] 102 |           ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout]     |  ____________________________________________^
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] 104 | |             command: "CAP",
[INFO] [stdout] 105 | |             parameters: vec!["*", "LIST", ""],
[INFO] [stdout] 106 | |         }),
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:107:42
[INFO] [stdout]     |
[INFO] [stdout] 107 |           "CAP * LS :multi-prefix sasl" => Ok(Message {
[INFO] [stdout]     |  __________________________________________^
[INFO] [stdout] 108 | |             source: None,
[INFO] [stdout] 109 | |             command: "CAP",
[INFO] [stdout] 110 | |             parameters: vec!["*", "LS", "multi-prefix sasl"],
[INFO] [stdout] 111 | |         }),
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:112:45
[INFO] [stdout]     |
[INFO] [stdout] 112 |           "CAP REQ :sasl message-tags foo" => Ok(Message {
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 113 | |             source: None,
[INFO] [stdout] 114 | |             command: "CAP",
[INFO] [stdout] 115 | |             parameters: vec!["REQ", "sasl message-tags foo"],
[INFO] [stdout] 116 | |         })
[INFO] [stdout]     | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Message<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 | /     test_parse! {
[INFO] [stdout] 101 | |         parse_rfc;
[INFO] [stdout] 102 | |         ":irc.example.com CAP * LIST :" => Ok(Message {
[INFO] [stdout] 103 | |             source: Some("irc.example.com"),
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         })
[INFO] [stdout] 117 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `assert_eq` which comes from the expansion of the macro `test_parse` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `irk` (lib test) due to 16 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ad395750b3557fa7245976d89f86c9ce0b62035a6d05707287ff07d1684539dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad395750b3557fa7245976d89f86c9ce0b62035a6d05707287ff07d1684539dd", kill_on_drop: false }`
[INFO] [stdout] ad395750b3557fa7245976d89f86c9ce0b62035a6d05707287ff07d1684539dd
