[INFO] fetching crate sphrs 0.2.2...
[INFO] building sphrs-0.2.2 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate sphrs 0.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate sphrs 0.2.2
[INFO] finished tweaking crates.io crate sphrs 0.2.2
[INFO] tweaked toml for crates.io crate sphrs 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sphrs 0.2.2 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] crate crates.io crate sphrs 0.2.2 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] eea8580189e691ab4cc193c698687fc0ddf2a23fc6b3c5317c70cd7e5e40d3fd
[INFO] running `Command { std: "docker" "start" "-a" "eea8580189e691ab4cc193c698687fc0ddf2a23fc6b3c5317c70cd7e5e40d3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eea8580189e691ab4cc193c698687fc0ddf2a23fc6b3c5317c70cd7e5e40d3fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea8580189e691ab4cc193c698687fc0ddf2a23fc6b3c5317c70cd7e5e40d3fd", kill_on_drop: false }`
[INFO] [stdout] eea8580189e691ab4cc193c698687fc0ddf2a23fc6b3c5317c70cd7e5e40d3fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6b429a6ec22eee8b80ec946f352e248f88f138b00c237808481958f4563066c2
[INFO] running `Command { std: "docker" "start" "-a" "6b429a6ec22eee8b80ec946f352e248f88f138b00c237808481958f4563066c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling sphrs v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/sh/harmonicsset.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let num_sh = (0..=degree).map(|o| (2 * o + 1)).sum();
[INFO] [stdout]    |                                           ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -         let num_sh = (0..=degree).map(|o| (2 * o + 1)).sum();
[INFO] [stdout] 31 +         let num_sh = (0..=degree).map(|o| 2 * o + 1).sum();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "6b429a6ec22eee8b80ec946f352e248f88f138b00c237808481958f4563066c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b429a6ec22eee8b80ec946f352e248f88f138b00c237808481958f4563066c2", kill_on_drop: false }`
[INFO] [stdout] 6b429a6ec22eee8b80ec946f352e248f88f138b00c237808481958f4563066c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3528c184a3b7bba77fc24e0982a2d1786d28d30fccde2c3bc779142faa63dc01
[INFO] running `Command { std: "docker" "start" "-a" "3528c184a3b7bba77fc24e0982a2d1786d28d30fccde2c3bc779142faa63dc01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/sh/harmonicsset.rs:31:43
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let num_sh = (0..=degree).map(|o| (2 * o + 1)).sum();
[INFO] [stdout]    |                                           ^         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -         let num_sh = (0..=degree).map(|o| (2 * o + 1)).sum();
[INFO] [stdout] 31 +         let num_sh = (0..=degree).map(|o| 2 * o + 1).sum();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3528c184a3b7bba77fc24e0982a2d1786d28d30fccde2c3bc779142faa63dc01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3528c184a3b7bba77fc24e0982a2d1786d28d30fccde2c3bc779142faa63dc01", kill_on_drop: false }`
[INFO] [stdout] 3528c184a3b7bba77fc24e0982a2d1786d28d30fccde2c3bc779142faa63dc01