[INFO] cloning repository https://github.com/mendess/lemons
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mendess/lemons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmendess%2Flemons", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmendess%2Flemons'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99d1ad8c3ee509c3bea1dabcfbb1eaa5872a98ff
[INFO] checking mendess/lemons against try#8ea250bdb76176ecb0225baa34aa634b024ae0e2 for pr-101692
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmendess%2Flemons" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mendess/lemons on toolchain 8ea250bdb76176ecb0225baa34aa634b024ae0e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mendess/lemons
[INFO] finished tweaking git repo https://github.com/mendess/lemons
[INFO] tweaked toml for git repo https://github.com/mendess/lemons written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mendess/lemons already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 996ac6907d752ad718ad886b7aa73daebd76ba4746dbe50ff2fcf05a4d98c68b
[INFO] running `Command { std: "docker" "start" "-a" "996ac6907d752ad718ad886b7aa73daebd76ba4746dbe50ff2fcf05a4d98c68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996ac6907d752ad718ad886b7aa73daebd76ba4746dbe50ff2fcf05a4d98c68b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996ac6907d752ad718ad886b7aa73daebd76ba4746dbe50ff2fcf05a4d98c68b", kill_on_drop: false }`
[INFO] [stdout] 996ac6907d752ad718ad886b7aa73daebd76ba4746dbe50ff2fcf05a4d98c68b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8ea250bdb76176ecb0225baa34aa634b024ae0e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 611261c623fd82e9f44ca7d68a88ece729f0793481ddb964ad42bfc0aa6d6515
[INFO] running `Command { std: "docker" "start" "-a" "611261c623fd82e9f44ca7d68a88ece729f0793481ddb964ad42bfc0aa6d6515", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
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[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model/monitor.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Self::All => (u8::MAX..=u8::MAX),
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 -             Self::All => (u8::MAX..=u8::MAX),
[INFO] [stdout] 24 +             Self::All => u8::MAX..=u8::MAX,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model/monitor.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Self::M(m) => (0..=(m - 1)),
[INFO] [stdout]    |                           ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -             Self::M(m) => (0..=(m - 1)),
[INFO] [stdout] 25 +             Self::M(m) => 0..=(m - 1),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model/monitor.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Self::All => (u8::MAX..=u8::MAX),
[INFO] [stdout]    |                          ^                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 -             Self::All => (u8::MAX..=u8::MAX),
[INFO] [stdout] 24 +             Self::All => u8::MAX..=u8::MAX,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/model/monitor.rs:25:27
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Self::M(m) => (0..=(m - 1)),
[INFO] [stdout]    |                           ^           ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -             Self::M(m) => (0..=(m - 1)),
[INFO] [stdout] 25 +             Self::M(m) => 0..=(m - 1),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start`
[INFO] [stdout]   --> src/model/block/persistent.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             tokio::task::spawn({
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ...which requires evaluating trait selection obligation `[generator interior@src/model/block/persistent.rs:29:28: 65:18]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires elaborating drops for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires borrow-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires processing `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires processing MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires unsafety-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires building MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    = note: ...which again requires type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start`, completing the cycle
[INFO] [stdout]    = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start`
[INFO] [stdout]   --> src/model/block/persistent.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             tokio::task::spawn({
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: ...which requires evaluating trait selection obligation `[generator interior@src/model/block/persistent.rs:29:28: 65:18]: core::marker::Send`...
[INFO] [stdout] note: ...which requires generator glue MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires elaborating drops for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires borrow-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires processing `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires processing MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires unsafety-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires building MIR for `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout] note: ...which requires type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start::{closure#0}`...
[INFO] [stdout]   --> src/model/block/persistent.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                   async move {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 30 | |                     let mut output = match run_cmd(cmd, mon).await {
[INFO] [stdout] 31 | |                         Ok(o) => o,
[INFO] [stdout] 32 | |                         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |                     }
[INFO] [stdout] 65 | |                 }
[INFO] [stdout]    | |_________________^
[INFO] [stdout]    = note: ...which again requires type-checking `model::block::persistent::<impl at src/model/block/persistent.rs:15:1: 15:37>::start`, completing the cycle
[INFO] [stdout]    = note: cycle used when type-checking all item bodies
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lemon` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0391`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lemon` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "611261c623fd82e9f44ca7d68a88ece729f0793481ddb964ad42bfc0aa6d6515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "611261c623fd82e9f44ca7d68a88ece729f0793481ddb964ad42bfc0aa6d6515", kill_on_drop: false }`
[INFO] [stdout] 611261c623fd82e9f44ca7d68a88ece729f0793481ddb964ad42bfc0aa6d6515