[INFO] fetching crate alt_serde_derive 1.0.119...
[INFO] checking alt_serde_derive-1.0.119 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate alt_serde_derive 1.0.119 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate alt_serde_derive 1.0.119 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alt_serde_derive 1.0.119
[INFO] finished tweaking crates.io crate alt_serde_derive 1.0.119
[INFO] tweaked toml for crates.io crate alt_serde_derive 1.0.119 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfbb7fd268b7a5ee7fd252ad2efaa483fd8185ac6ae79d6390fe2b5fa1fbe99f
[INFO] running `Command { std: "docker" "start" "-a" "dfbb7fd268b7a5ee7fd252ad2efaa483fd8185ac6ae79d6390fe2b5fa1fbe99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfbb7fd268b7a5ee7fd252ad2efaa483fd8185ac6ae79d6390fe2b5fa1fbe99f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfbb7fd268b7a5ee7fd252ad2efaa483fd8185ac6ae79d6390fe2b5fa1fbe99f", kill_on_drop: false }`
[INFO] [stdout] dfbb7fd268b7a5ee7fd252ad2efaa483fd8185ac6ae79d6390fe2b5fa1fbe99f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b5245c49b6a3dbc5912861c57a3bce059dcbb9c5e6c9b9d8899ccbdc6415144
[INFO] running `Command { std: "docker" "start" "-a" "5b5245c49b6a3dbc5912861c57a3bce059dcbb9c5e6c9b9d8899ccbdc6415144", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling alt_serde_derive v1.0.119 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/internals/ast.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[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/internals/attr.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/internals/ctxt.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/bound.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/de.rs:5:11
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn::{self, Ident, Index, Member};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/dummy.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:3:11
[INFO] [stdout]    |
[INFO] [stdout] 3  | use syn::{self, Ident, Index, Member};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/internals/ast.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[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/internals/attr.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/internals/ctxt.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/bound.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/de.rs:5:11
[INFO] [stdout]    |
[INFO] [stdout] 5  | use syn::{self, Ident, Index, Member};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/dummy.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use syn;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `syn` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:3:11
[INFO] [stdout]    |
[INFO] [stdout] 3  | use syn::{self, Ident, Index, Member};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:58:1
[INFO] [stdout]    |
[INFO] [stdout] 58 | extern crate syn;
[INFO] [stdout]    | ----------------- the item `syn` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.43s
[INFO] running `Command { std: "docker" "inspect" "5b5245c49b6a3dbc5912861c57a3bce059dcbb9c5e6c9b9d8899ccbdc6415144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5245c49b6a3dbc5912861c57a3bce059dcbb9c5e6c9b9d8899ccbdc6415144", kill_on_drop: false }`
[INFO] [stdout] 5b5245c49b6a3dbc5912861c57a3bce059dcbb9c5e6c9b9d8899ccbdc6415144
