[INFO] fetching crate ickle 0.3.0...
[INFO] checking ickle-0.3.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate ickle 0.3.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate ickle 0.3.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ickle 0.3.0
[INFO] finished tweaking crates.io crate ickle 0.3.0
[INFO] tweaked toml for crates.io crate ickle 0.3.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef82d3cb786e398a85a73348944d61b2d862c854c9462f3cfcf6943012a2f890
[INFO] running `Command { std: "docker" "start" "-a" "ef82d3cb786e398a85a73348944d61b2d862c854c9462f3cfcf6943012a2f890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef82d3cb786e398a85a73348944d61b2d862c854c9462f3cfcf6943012a2f890", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef82d3cb786e398a85a73348944d61b2d862c854c9462f3cfcf6943012a2f890", kill_on_drop: false }`
[INFO] [stdout] ef82d3cb786e398a85a73348944d61b2d862c854c9462f3cfcf6943012a2f890
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] abcb21598983c2bcd3fd9b624e0e17422909185257d43e34eff207953c837739
[INFO] running `Command { std: "docker" "start" "-a" "abcb21598983c2bcd3fd9b624e0e17422909185257d43e34eff207953c837739", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ickle v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `datatype`
[INFO] [stdout]   --> src/vevent.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Value { datatype: DataType, invalid: String },
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `invalid`
[INFO] [stdout]   --> src/vevent.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Value { datatype: DataType, invalid: String },
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> src/vevent.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Condition { error: String },
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bad`
[INFO] [stdout]   --> src/vevent.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     bad: Bad,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]   --> src/vevent.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wday`
[INFO] [stdout]    --> src/vevent.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     wday: Weekday,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num`
[INFO] [stdout]    --> src/vevent.rs:185:5
[INFO] [stdout]     |
[INFO] [stdout] 185 |     num: Option<i8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `freq`
[INFO] [stdout]    --> src/vevent.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     freq: Freq,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stop`
[INFO] [stdout]    --> src/vevent.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |     stop: Option<Stop>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `interval`
[INFO] [stdout]    --> src/vevent.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 |     interval: Option<u32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wkst`
[INFO] [stdout]    --> src/vevent.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 208 |     wkst: Option<Weekday>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bysecond`
[INFO] [stdout]    --> src/vevent.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     bysecond: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byminute`
[INFO] [stdout]    --> src/vevent.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     byminute: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byhour`
[INFO] [stdout]    --> src/vevent.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     byhour: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bymonth`
[INFO] [stdout]    --> src/vevent.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     bymonth: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byyearday`
[INFO] [stdout]    --> src/vevent.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |     byyearday: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bymonthday`
[INFO] [stdout]    --> src/vevent.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     bymonthday: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byweekno`
[INFO] [stdout]    --> src/vevent.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     byweekno: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bysetpos`
[INFO] [stdout]    --> src/vevent.rs:216:5
[INFO] [stdout]     |
[INFO] [stdout] 216 |     bysetpos: Option<Vec<u32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byday`
[INFO] [stdout]    --> src/vevent.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 |     byday: Option<Vec<WeekdayNum>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/lib.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `params`
[INFO] [stdout]    --> src/lib.rs:162:29
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lib.rs:162:49
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `datatype`
[INFO] [stdout]   --> src/vevent.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Value { datatype: DataType, invalid: String },
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `invalid`
[INFO] [stdout]   --> src/vevent.rs:78:33
[INFO] [stdout]    |
[INFO] [stdout] 78 |     Value { datatype: DataType, invalid: String },
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `error`
[INFO] [stdout]   --> src/vevent.rs:79:17
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Condition { error: String },
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bad`
[INFO] [stdout]   --> src/vevent.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     bad: Bad,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `line`
[INFO] [stdout]   --> src/vevent.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     line: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wday`
[INFO] [stdout]    --> src/vevent.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     wday: Weekday,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `num`
[INFO] [stdout]    --> src/vevent.rs:185:5
[INFO] [stdout]     |
[INFO] [stdout] 185 |     num: Option<i8>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `freq`
[INFO] [stdout]    --> src/vevent.rs:205:5
[INFO] [stdout]     |
[INFO] [stdout] 205 |     freq: Freq,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stop`
[INFO] [stdout]    --> src/vevent.rs:206:5
[INFO] [stdout]     |
[INFO] [stdout] 206 |     stop: Option<Stop>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `interval`
[INFO] [stdout]    --> src/vevent.rs:207:5
[INFO] [stdout]     |
[INFO] [stdout] 207 |     interval: Option<u32>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wkst`
[INFO] [stdout]    --> src/vevent.rs:208:5
[INFO] [stdout]     |
[INFO] [stdout] 208 |     wkst: Option<Weekday>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bysecond`
[INFO] [stdout]    --> src/vevent.rs:209:5
[INFO] [stdout]     |
[INFO] [stdout] 209 |     bysecond: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byminute`
[INFO] [stdout]    --> src/vevent.rs:210:5
[INFO] [stdout]     |
[INFO] [stdout] 210 |     byminute: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byhour`
[INFO] [stdout]    --> src/vevent.rs:211:5
[INFO] [stdout]     |
[INFO] [stdout] 211 |     byhour: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bymonth`
[INFO] [stdout]    --> src/vevent.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 |     bymonth: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byyearday`
[INFO] [stdout]    --> src/vevent.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |     byyearday: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bymonthday`
[INFO] [stdout]    --> src/vevent.rs:214:5
[INFO] [stdout]     |
[INFO] [stdout] 214 |     bymonthday: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byweekno`
[INFO] [stdout]    --> src/vevent.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     byweekno: Option<Vec<i32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bysetpos`
[INFO] [stdout]    --> src/vevent.rs:216:5
[INFO] [stdout]     |
[INFO] [stdout] 216 |     bysetpos: Option<Vec<u32>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `byday`
[INFO] [stdout]    --> src/vevent.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 |     byday: Option<Vec<WeekdayNum>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]    --> src/lib.rs:162:15
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `params`
[INFO] [stdout]    --> src/lib.rs:162:29
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]    --> src/lib.rs:162:49
[INFO] [stdout]     |
[INFO] [stdout] 162 |     Property{ name: String, params: Vec<Param>, value: String },
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.22s
[INFO] running `Command { std: "docker" "inspect" "abcb21598983c2bcd3fd9b624e0e17422909185257d43e34eff207953c837739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abcb21598983c2bcd3fd9b624e0e17422909185257d43e34eff207953c837739", kill_on_drop: false }`
[INFO] [stdout] abcb21598983c2bcd3fd9b624e0e17422909185257d43e34eff207953c837739