[INFO] fetching crate rustnomial 0.3.2...
[INFO] building rustnomial-0.3.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rustnomial 0.3.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rustnomial 0.3.2
[INFO] finished tweaking crates.io crate rustnomial 0.3.2
[INFO] tweaked toml for crates.io crate rustnomial 0.3.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustnomial 0.3.2 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding roots v0.0.7 (available: v0.0.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49ccb21e7c2cf9ab2b71dd8564cde88dc5b4a3045224ec0bef9121ab5821fa61
[INFO] running `Command { std: "docker" "start" "-a" "49ccb21e7c2cf9ab2b71dd8564cde88dc5b4a3045224ec0bef9121ab5821fa61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49ccb21e7c2cf9ab2b71dd8564cde88dc5b4a3045224ec0bef9121ab5821fa61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49ccb21e7c2cf9ab2b71dd8564cde88dc5b4a3045224ec0bef9121ab5821fa61", kill_on_drop: false }`
[INFO] [stdout] 49ccb21e7c2cf9ab2b71dd8564cde88dc5b4a3045224ec0bef9121ab5821fa61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34914cd58b2c110d0df8b7a7beb1fb44003db1fc5bcc1a5498c74be95f09c65e
[INFO] running `Command { std: "docker" "start" "-a" "34914cd58b2c110d0df8b7a7beb1fb44003db1fc5bcc1a5498c74be95f09c65e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling roots v0.0.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling rustnomial v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `GenericPolynomial` is never used
[INFO] [stdout]   --> src/polynomial/traits.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait GenericPolynomial<N>: SizedPolynomial<N> + MutablePolynomial<N> + Evaluable<N> {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 7.21s
[INFO] running `Command { std: "docker" "inspect" "34914cd58b2c110d0df8b7a7beb1fb44003db1fc5bcc1a5498c74be95f09c65e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34914cd58b2c110d0df8b7a7beb1fb44003db1fc5bcc1a5498c74be95f09c65e", kill_on_drop: false }`
[INFO] [stdout] 34914cd58b2c110d0df8b7a7beb1fb44003db1fc5bcc1a5498c74be95f09c65e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00d7f36c513d8170962080dd523163adbe254f22cf2e8c2f94d8013b6f7bb3b9
[INFO] running `Command { std: "docker" "start" "-a" "00d7f36c513d8170962080dd523163adbe254f22cf2e8c2f94d8013b6f7bb3b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustnomial v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `GenericPolynomial` is never used
[INFO] [stdout]   --> src/polynomial/traits.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait GenericPolynomial<N>: SizedPolynomial<N> + MutablePolynomial<N> + Evaluable<N> {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `derivative`
[INFO] [stdout]   --> src/polynomial/derivative.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     use crate::{derivative, Polynomial};
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::integral`
[INFO] [stdout]   --> src/polynomial/integral.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |     use crate::integral;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `polynomial`
[INFO] [stdout]    --> src/polynomial/polynomial.rs:956:9
[INFO] [stdout]     |
[INFO] [stdout] 956 |         polynomial, Degree, Derivable, Evaluable, Integrable, Polynomial, SizedPolynomial,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GenericPolynomial` is never used
[INFO] [stdout]   --> src/polynomial/traits.rs:56:11
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait GenericPolynomial<N>: SizedPolynomial<N> + MutablePolynomial<N> + Evaluable<N> {}
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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 2.26s
[INFO] running `Command { std: "docker" "inspect" "00d7f36c513d8170962080dd523163adbe254f22cf2e8c2f94d8013b6f7bb3b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d7f36c513d8170962080dd523163adbe254f22cf2e8c2f94d8013b6f7bb3b9", kill_on_drop: false }`
[INFO] [stdout] 00d7f36c513d8170962080dd523163adbe254f22cf2e8c2f94d8013b6f7bb3b9