[INFO] fetching crate gluon_codegen 0.18.2...
[INFO] checking gluon_codegen-0.18.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate gluon_codegen 0.18.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate gluon_codegen 0.18.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_codegen 0.18.2
[INFO] finished tweaking crates.io crate gluon_codegen 0.18.2
[INFO] tweaked toml for crates.io crate gluon_codegen 0.18.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 166 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]   Downloaded typed-arena v2.0.2
[INFO] [stderr]   Downloaded serde_derive_state v0.4.10
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12c3954043818811467db74ebd1cb169ce43933f6a0f2a0617b46eaeeca10277
[INFO] running `Command { std: "docker" "start" "-a" "12c3954043818811467db74ebd1cb169ce43933f6a0f2a0617b46eaeeca10277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12c3954043818811467db74ebd1cb169ce43933f6a0f2a0617b46eaeeca10277", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c3954043818811467db74ebd1cb169ce43933f6a0f2a0617b46eaeeca10277", kill_on_drop: false }`
[INFO] [stdout] 12c3954043818811467db74ebd1cb169ce43933f6a0f2a0617b46eaeeca10277
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e1a8f40e8d457963dc9e37b93c21b96daa1e63fc354040c52864227bced4c6
[INFO] running `Command { std: "docker" "start" "-a" "19e1a8f40e8d457963dc9e37b93c21b96daa1e63fc354040c52864227bced4c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
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[INFO] [stderr]    Compiling string_cache v0.8.7
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[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling ena v0.14.2
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]     Checking static_assertions v1.1.0
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[INFO] [stderr]     Checking archery v0.4.0
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[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking unicode-ident v1.0.12
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[INFO] [stderr]    Compiling serde_json v1.0.115
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[INFO] [stderr]    Compiling gluon_vm v0.18.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ryu v1.0.17
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[INFO] [stderr]     Checking rand_xorshift v0.3.0
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[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking lalrpop-util v0.19.12
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]    Compiling gluon_codegen v0.18.2
[INFO] [stderr]    Compiling gluon-salsa-macros v0.15.2
[INFO] [stderr]    Compiling gluon_codegen v0.18.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lalrpop v0.19.12
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking gluon-salsa v0.15.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking serde_state v0.4.8
[INFO] [stderr]     Checking codespan v0.11.1
[INFO] [stderr]    Compiling gluon_base v0.18.2
[INFO] [stderr]    Compiling gluon_parser v0.18.2
[INFO] [stderr]     Checking gluon_check v0.18.2
[INFO] [stderr]     Checking gluon_format v0.18.2
[INFO] [stderr]    Compiling gluon v0.18.2
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_userdata.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_vm_type.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_getable.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_pushable.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/full.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "19e1a8f40e8d457963dc9e37b93c21b96daa1e63fc354040c52864227bced4c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e1a8f40e8d457963dc9e37b93c21b96daa1e63fc354040c52864227bced4c6", kill_on_drop: false }`
[INFO] [stdout] 19e1a8f40e8d457963dc9e37b93c21b96daa1e63fc354040c52864227bced4c6
[INFO] checking gluon_codegen-0.18.2 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate gluon_codegen 0.18.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate gluon_codegen 0.18.2 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_codegen 0.18.2
[INFO] finished tweaking crates.io crate gluon_codegen 0.18.2
[INFO] tweaked toml for crates.io crate gluon_codegen 0.18.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 166 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
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[INFO] [stderr]       Adding fixedbitset v0.4.2 (latest: v0.5.6)
[INFO] [stderr]       Adding futures v0.1.31 (latest: v0.3.30)
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[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding lalrpop v0.19.12 (latest: v0.20.2)
[INFO] [stderr]       Adding lalrpop-util v0.19.12 (latest: v0.20.2)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
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[INFO] [stderr]       Adding rpds v0.10.0 (latest: v1.1.0)
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
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[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b3952f5c004ec40f34738b9e9ecaa06b5fe9a468e1c8829edcdfd85f2dc10be
[INFO] running `Command { std: "docker" "start" "-a" "0b3952f5c004ec40f34738b9e9ecaa06b5fe9a468e1c8829edcdfd85f2dc10be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b3952f5c004ec40f34738b9e9ecaa06b5fe9a468e1c8829edcdfd85f2dc10be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3952f5c004ec40f34738b9e9ecaa06b5fe9a468e1c8829edcdfd85f2dc10be", kill_on_drop: false }`
[INFO] [stdout] 0b3952f5c004ec40f34738b9e9ecaa06b5fe9a468e1c8829edcdfd85f2dc10be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cfba600544737705fc4b9696a4d48dadb57286408088c12fb36ec43ecc715b0
[INFO] running `Command { std: "docker" "start" "-a" "9cfba600544737705fc4b9696a4d48dadb57286408088c12fb36ec43ecc715b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
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[INFO] [stderr]    Compiling parking_lot_core v0.9.9
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[INFO] [stderr]    Compiling unicode-width v0.1.11
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[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling regex-syntax v0.6.29
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[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling gluon_codegen v0.18.2
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[INFO] [stderr]    Compiling gluon_codegen v0.18.2 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking gluon-salsa v0.15.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking serde_state v0.4.8
[INFO] [stderr]     Checking codespan v0.11.1
[INFO] [stderr]     Checking gluon_base v0.18.2
[INFO] [stderr]    Compiling gluon_parser v0.18.2
[INFO] [stderr]     Checking gluon_check v0.18.2
[INFO] [stderr]     Checking gluon_format v0.18.2
[INFO] [stderr]    Compiling gluon v0.18.2
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_userdata.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/full.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_vm_type.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_pushable.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `gluon` is imported redundantly
[INFO] [stdout]  --> tests/init/mod.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use gluon::{self, import::Import, RootedThread};
[INFO] [stdout]   |             ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: tests/derive_getable.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate gluon;
[INFO] [stdout]   | ------------------- the item `gluon` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/ast_clone.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/attr.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/functor.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/getable.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/pushable.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     self, Data, DataEnum, DataStruct, DeriveInput, Fields, FieldsNamed, FieldsUnnamed, Generics,
[INFO] [stdout]   |     ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/trace.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         self, Data, DataEnum, DataStruct, DeriveInput, Field, Fields, FieldsNamed, FieldsUnnamed,
[INFO] [stdout]   |         ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/userdata.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]  --> src/vm_type.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use syn::{self, Data, DeriveInput, Fields, GenericParam, Generics};
[INFO] [stdout]   |           ^^^^ the item `syn` is already defined by prelude
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 55.49s
[INFO] running `Command { std: "docker" "inspect" "9cfba600544737705fc4b9696a4d48dadb57286408088c12fb36ec43ecc715b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cfba600544737705fc4b9696a4d48dadb57286408088c12fb36ec43ecc715b0", kill_on_drop: false }`
[INFO] [stdout] 9cfba600544737705fc4b9696a4d48dadb57286408088c12fb36ec43ecc715b0