[INFO] fetching crate melminter 0.9.0...
[INFO] checking melminter-0.9.0 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate melminter 0.9.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate melminter 0.9.0 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate melminter 0.9.0
[INFO] finished tweaking crates.io crate melminter 0.9.0
[INFO] tweaked toml for crates.io crate melminter 0.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate melminter 0.9.0 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" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded melstructs v0.3.2
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1e36b6496b5ec15bfa77b898ad16a6be871b74a933f109b24afa5bac4808d23
[INFO] running `Command { std: "docker" "start" "-a" "b1e36b6496b5ec15bfa77b898ad16a6be871b74a933f109b24afa5bac4808d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1e36b6496b5ec15bfa77b898ad16a6be871b74a933f109b24afa5bac4808d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e36b6496b5ec15bfa77b898ad16a6be871b74a933f109b24afa5bac4808d23", kill_on_drop: false }`
[INFO] [stdout] b1e36b6496b5ec15bfa77b898ad16a6be871b74a933f109b24afa5bac4808d23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41055029e4a1d38fbe784a344f96dd2adf0a5a16b72402769ff80d8405b4ed66
[INFO] running `Command { std: "docker" "start" "-a" "41055029e4a1d38fbe784a344f96dd2adf0a5a16b72402769ff80d8405b4ed66", kill_on_drop: false }`
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[INFO] [stderr]     Checking melstructs v0.3.2
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[INFO] [stderr]     Checking melprot v0.13.7
[INFO] [stderr]     Checking melminter v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/worker.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct WorkerConfig {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WorkerConfig` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/worker.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct WorkerConfig {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WorkerConfig` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.05s
[INFO] running `Command { std: "docker" "inspect" "41055029e4a1d38fbe784a344f96dd2adf0a5a16b72402769ff80d8405b4ed66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41055029e4a1d38fbe784a344f96dd2adf0a5a16b72402769ff80d8405b4ed66", kill_on_drop: false }`
[INFO] [stdout] 41055029e4a1d38fbe784a344f96dd2adf0a5a16b72402769ff80d8405b4ed66
[INFO] checking melminter-0.9.0 against try#6a5749073f2ebf59d7740d30e50a932a85756ee7 for pr-127655
[INFO] extracting crate melminter 0.9.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate melminter 0.9.0 on toolchain 6a5749073f2ebf59d7740d30e50a932a85756ee7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate melminter 0.9.0
[INFO] finished tweaking crates.io crate melminter 0.9.0
[INFO] tweaked toml for crates.io crate melminter 0.9.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate melminter 0.9.0 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" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17bf4fb6b4dbf6ba42c47026a87fd709aa5fc5360952bb0e0e891e19c1fc7b46
[INFO] running `Command { std: "docker" "start" "-a" "17bf4fb6b4dbf6ba42c47026a87fd709aa5fc5360952bb0e0e891e19c1fc7b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17bf4fb6b4dbf6ba42c47026a87fd709aa5fc5360952bb0e0e891e19c1fc7b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17bf4fb6b4dbf6ba42c47026a87fd709aa5fc5360952bb0e0e891e19c1fc7b46", kill_on_drop: false }`
[INFO] [stdout] 17bf4fb6b4dbf6ba42c47026a87fd709aa5fc5360952bb0e0e891e19c1fc7b46
[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" "-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+6a5749073f2ebf59d7740d30e50a932a85756ee7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80c4fdc4de338f8018a259d41bedf92939a49905bd31ac13a14f180675b66d8a
[INFO] running `Command { std: "docker" "start" "-a" "80c4fdc4de338f8018a259d41bedf92939a49905bd31ac13a14f180675b66d8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking concurrent-queue v2.5.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking waker-fn v1.2.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking futures-lite v2.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling blake3 v1.5.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking lock_api v0.4.12
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]     Checking io-lifetimes v1.0.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking event-listener v5.3.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking unicode-width v0.1.12
[INFO] [stderr]     Checking zeroize v1.7.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking subtle-ng v2.5.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking curve25519-dalek-ng v4.1.1
[INFO] [stderr]     Checking event-listener-strategy v0.5.2
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rustix v0.37.27
[INFO] [stderr]     Checking polling v2.8.0
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking piper v0.2.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-channel v2.3.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]     Checking num-bigint v0.4.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking blocking v1.6.0
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling anyhow v1.0.83
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking async-executor v1.11.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking dashmap v5.5.3
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking event-listener v3.1.0
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking genawaiter-macro v0.99.1
[INFO] [stderr]     Checking async-io v1.13.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking lru v0.7.8
[INFO] [stderr]     Checking bitvec v0.20.4
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking async-fs v1.6.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking async-net v1.8.0
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking raw-cpuid v10.7.0
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking bitmaps v3.2.1
[INFO] [stderr]     Checking defmac v0.2.1
[INFO] [stderr]     Checking triomphe v0.1.11
[INFO] [stderr]     Checking cache-padded v1.3.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/6a5749073f2ebf59d7740d30e50a932a85756ee7/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=437edb1e29d743e4 -C extra-filename=-437edb1e29d743e4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-860daa60fdca5d2f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d1d43cb6c3e08ebd.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-7b828347d8713ecd.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/6a5749073f2ebf59d7740d30e50a932a85756ee7/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.63/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=ae389af428188523 -C extra-filename=-ae389af428188523 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-860daa60fdca5d2f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d1d43cb6c3e08ebd.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-7b828347d8713ecd.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "80c4fdc4de338f8018a259d41bedf92939a49905bd31ac13a14f180675b66d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80c4fdc4de338f8018a259d41bedf92939a49905bd31ac13a14f180675b66d8a", kill_on_drop: false }`
[INFO] [stdout] 80c4fdc4de338f8018a259d41bedf92939a49905bd31ac13a14f180675b66d8a
