[INFO] fetching crate elm_rusty 0.1.0...
[INFO] testing elm_rusty-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate elm_rusty 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate elm_rusty 0.1.0
[INFO] finished tweaking crates.io crate elm_rusty 0.1.0
[INFO] tweaked toml for crates.io crate elm_rusty 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate elm_rusty 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.9.0 (available: v0.23.0)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.106)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.45)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88faeef577ca8a77b46541c8298909093ecbfea8c57b55ecfb56bfe40724e67b
[INFO] running `Command { std: "docker" "start" "-a" "88faeef577ca8a77b46541c8298909093ecbfea8c57b55ecfb56bfe40724e67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88faeef577ca8a77b46541c8298909093ecbfea8c57b55ecfb56bfe40724e67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88faeef577ca8a77b46541c8298909093ecbfea8c57b55ecfb56bfe40724e67b", kill_on_drop: false }`
[INFO] [stdout] 88faeef577ca8a77b46541c8298909093ecbfea8c57b55ecfb56bfe40724e67b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ea49edd86951a495611acba4da6a6dc7d615d390774eaa3b1bded03ff9d1595
[INFO] running `Command { std: "docker" "start" "-a" "3ea49edd86951a495611acba4da6a6dc7d615d390774eaa3b1bded03ff9d1595", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling elm_rusty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ident` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct PathArgs {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 26 |     ident: syn::Ident,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PathArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.37s
[INFO] running `Command { std: "docker" "inspect" "3ea49edd86951a495611acba4da6a6dc7d615d390774eaa3b1bded03ff9d1595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea49edd86951a495611acba4da6a6dc7d615d390774eaa3b1bded03ff9d1595", kill_on_drop: false }`
[INFO] [stdout] 3ea49edd86951a495611acba4da6a6dc7d615d390774eaa3b1bded03ff9d1595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad34533e007b481357a3865c369325ee4006acaa49aea2757495eac07b6b2b6
[INFO] running `Command { std: "docker" "start" "-a" "dad34533e007b481357a3865c369325ee4006acaa49aea2757495eac07b6b2b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling elm_rusty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `ident` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct PathArgs {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 26 |     ident: syn::Ident,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PathArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `ident` and `attrs` are never read
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct PathArgs {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 26 |     ident: syn::Ident,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 27 |     attrs: Vec<syn::Attribute>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `PathArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "dad34533e007b481357a3865c369325ee4006acaa49aea2757495eac07b6b2b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad34533e007b481357a3865c369325ee4006acaa49aea2757495eac07b6b2b6", kill_on_drop: false }`
[INFO] [stdout] dad34533e007b481357a3865c369325ee4006acaa49aea2757495eac07b6b2b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31fc4dfd2846569d1f00f95c6cd47893101cf48ab1ddc47dad93aecd5eea946c
[INFO] running `Command { std: "docker" "start" "-a" "31fc4dfd2846569d1f00f95c6cd47893101cf48ab1ddc47dad93aecd5eea946c", kill_on_drop: false }`
[INFO] [stderr] warning: fields `ident` and `attrs` are never read
[INFO] [stderr]   --> src/lib.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | struct PathArgs {
[INFO] [stderr]    |        -------- fields in this struct
[INFO] [stderr] 26 |     ident: syn::Ident,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 27 |     attrs: Vec<syn::Attribute>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `PathArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `elm_rusty` (lib) generated 1 warning
[INFO] [stderr] warning: `elm_rusty` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/elm_rusty-b931a828bb530e4e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests elm_rusty
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31fc4dfd2846569d1f00f95c6cd47893101cf48ab1ddc47dad93aecd5eea946c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31fc4dfd2846569d1f00f95c6cd47893101cf48ab1ddc47dad93aecd5eea946c", kill_on_drop: false }`
[INFO] [stdout] 31fc4dfd2846569d1f00f95c6cd47893101cf48ab1ddc47dad93aecd5eea946c