[INFO] fetching crate proc-tools-core 0.1.0...
[INFO] testing proc-tools-core-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate proc-tools-core 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate proc-tools-core 0.1.0
[INFO] finished tweaking crates.io crate proc-tools-core 0.1.0
[INFO] tweaked toml for crates.io crate proc-tools-core 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proc-tools-core 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] crate crates.io crate proc-tools-core 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] facfb760def77d309a5a27e1cc9e3a4b40a01253754899262414e6f2b279aea9
[INFO] running `Command { std: "docker" "start" "-a" "facfb760def77d309a5a27e1cc9e3a4b40a01253754899262414e6f2b279aea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "facfb760def77d309a5a27e1cc9e3a4b40a01253754899262414e6f2b279aea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "facfb760def77d309a5a27e1cc9e3a4b40a01253754899262414e6f2b279aea9", kill_on_drop: false }`
[INFO] [stdout] facfb760def77d309a5a27e1cc9e3a4b40a01253754899262414e6f2b279aea9
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 602fc09051c3879a4faad7c52c11913d59a08de1bd42a7182b498da7f5fdc0e7
[INFO] running `Command { std: "docker" "start" "-a" "602fc09051c3879a4faad7c52c11913d59a08de1bd42a7182b498da7f5fdc0e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-tools-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/float2str/f2s.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "602fc09051c3879a4faad7c52c11913d59a08de1bd42a7182b498da7f5fdc0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "602fc09051c3879a4faad7c52c11913d59a08de1bd42a7182b498da7f5fdc0e7", kill_on_drop: false }`
[INFO] [stdout] 602fc09051c3879a4faad7c52c11913d59a08de1bd42a7182b498da7f5fdc0e7
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9ff3eabd53738a7893dda43047c4f50360e8115cd31dfed73c0668be9ae0411
[INFO] running `Command { std: "docker" "start" "-a" "b9ff3eabd53738a7893dda43047c4f50360e8115cd31dfed73c0668be9ae0411", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-tools-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/float2str/f2s.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `vp` is never read
[INFO] [stdout]    --> src/float2str/f2s.rs:109:17
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 vp /= 10;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "b9ff3eabd53738a7893dda43047c4f50360e8115cd31dfed73c0668be9ae0411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ff3eabd53738a7893dda43047c4f50360e8115cd31dfed73c0668be9ae0411", kill_on_drop: false }`
[INFO] [stdout] b9ff3eabd53738a7893dda43047c4f50360e8115cd31dfed73c0668be9ae0411
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2704a080a9ba97e682499e80bc75432835b96b0c71de81f84174e77e32d70166
[INFO] running `Command { std: "docker" "start" "-a" "2704a080a9ba97e682499e80bc75432835b96b0c71de81f84174e77e32d70166", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `vp` is never read
[INFO] [stderr]    --> src/float2str/f2s.rs:109:17
[INFO] [stderr]     |
[INFO] [stderr] 109 |                 vp /= 10;
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `proc-tools-core` (lib) generated 1 warning
[INFO] [stderr] warning: `proc-tools-core` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proc_tools_core-841ff48f21f84a37)
[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 proc_tools_core
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - replace_multiple_patterns (line 79) ... ignored
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::StaticSizeConcatParameter::concat_parameter (line 261) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::StaticSizeConcatParameter::init_concat_parameter (line 235) ... ok
[INFO] [stdout] test src/lib.rs - concat_str (line 20) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::VariableSizeConcatParameter::concat_parameter (line 392) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::StaticSizeConcatParameter::first_parameter_for_concat (line 215) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::VariableSizeConcatParameter::first_parameter_for_concat (line 343) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::ftoa_buf_f32 (line 120) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::VariableSizeConcatParameter::init_concat_parameter (line 365) ... ok
[INFO] [stdout] test src/utils_core/impl_to_ascii.rs - utils_core::impl_to_ascii::ftoa_buf_f64 (line 165) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.48s; merged doctests compilation took 0.44s
[INFO] running `Command { std: "docker" "inspect" "2704a080a9ba97e682499e80bc75432835b96b0c71de81f84174e77e32d70166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2704a080a9ba97e682499e80bc75432835b96b0c71de81f84174e77e32d70166", kill_on_drop: false }`
[INFO] [stdout] 2704a080a9ba97e682499e80bc75432835b96b0c71de81f84174e77e32d70166