[INFO] fetching crate dlx-rs 1.1.0...
[INFO] checking dlx-rs-1.1.0 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate dlx-rs 1.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dlx-rs 1.1.0 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dlx-rs 1.1.0
[INFO] finished tweaking crates.io crate dlx-rs 1.1.0
[INFO] tweaked toml for crates.io crate dlx-rs 1.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate dlx-rs 1.1.0 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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 844891b2139bf50a1f1a08f00c36b3217a22989f07286c89edc348a2f0722c6d
[INFO] running `Command { std: "docker" "start" "-a" "844891b2139bf50a1f1a08f00c36b3217a22989f07286c89edc348a2f0722c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "844891b2139bf50a1f1a08f00c36b3217a22989f07286c89edc348a2f0722c6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "844891b2139bf50a1f1a08f00c36b3217a22989f07286c89edc348a2f0722c6d", kill_on_drop: false }`
[INFO] [stdout] 844891b2139bf50a1f1a08f00c36b3217a22989f07286c89edc348a2f0722c6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8311fefdde17d244a4cc4061262a1a7602531f0673f71e34ef2a590401dd407
[INFO] running `Command { std: "docker" "start" "-a" "d8311fefdde17d244a4cc4061262a1a7602531f0673f71e34ef2a590401dd407", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.157
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.157
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking dlx-rs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/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] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d8311fefdde17d244a4cc4061262a1a7602531f0673f71e34ef2a590401dd407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8311fefdde17d244a4cc4061262a1a7602531f0673f71e34ef2a590401dd407", kill_on_drop: false }`
[INFO] [stdout] d8311fefdde17d244a4cc4061262a1a7602531f0673f71e34ef2a590401dd407
[INFO] checking dlx-rs-1.1.0 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate dlx-rs 1.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate dlx-rs 1.1.0 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dlx-rs 1.1.0
[INFO] finished tweaking crates.io crate dlx-rs 1.1.0
[INFO] tweaked toml for crates.io crate dlx-rs 1.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate dlx-rs 1.1.0 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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acb24e87e6c18a486cc55a75c5e7fc9bed6a7fd1dda050e1cd9099fa378a98c5
[INFO] running `Command { std: "docker" "start" "-a" "acb24e87e6c18a486cc55a75c5e7fc9bed6a7fd1dda050e1cd9099fa378a98c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acb24e87e6c18a486cc55a75c5e7fc9bed6a7fd1dda050e1cd9099fa378a98c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb24e87e6c18a486cc55a75c5e7fc9bed6a7fd1dda050e1cd9099fa378a98c5", kill_on_drop: false }`
[INFO] [stdout] acb24e87e6c18a486cc55a75c5e7fc9bed6a7fd1dda050e1cd9099fa378a98c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 818daa845aaab230c19119283386acbe56f94d86f0f3655177eacbadc4e1a066
[INFO] running `Command { std: "docker" "start" "-a" "818daa845aaab230c19119283386acbe56f94d86f0f3655177eacbadc4e1a066", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.157
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde v1.0.157
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking os_str_bytes v6.4.1
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.28
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking dlx-rs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let row_ends_top = (1..=n).map(|x| x * (x + 1));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:58:32
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let row_ends_bottom = (1..=n).map(|x| max - x * (x - 1));
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:67:18
[INFO] [stdout]    |
[INFO] [stdout] 67 |         for x in 1..=2 * n * (n + 1) {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |         for j in 1..=n - 1 {
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:79:22
[INFO] [stdout]    |
[INFO] [stdout] 79 |             for i in 1..=2 * j {
[INFO] [stdout]    |                      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/aztec.rs:97:18
[INFO] [stdout]    |
[INFO] [stdout] 97 |         for x in final_min..=final_max {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> src/aztec.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 |         let row_ends_top = (1..=n).map(|x| x * (x + 1));
[INFO] [stdout]     |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> src/aztec.rs:124:32
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let row_ends_bottom = (1..=n).map(|x| max - x * (x - 1));
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> src/aztec.rs:130:18
[INFO] [stdout]     |
[INFO] [stdout] 130 |         for _ in 1..=2 * sol.len() {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/queens.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 |         for r in 1..=n {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/queens.rs:41:22
[INFO] [stdout]    |
[INFO] [stdout] 41 |             for c in 1..=n {
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]    --> src/solver.rs:298:18
[INFO] [stdout]     |
[INFO] [stdout] 298 |         for i in 1..=n {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/solver.rs:836:18
[INFO] [stdout]     |
[INFO] [stdout] 836 |         for _ in 0..id {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/sudoku.rs:78:20
[INFO] [stdout]    |
[INFO] [stdout] 78 |         for row in 1..=N {
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/sudoku.rs:79:24
[INFO] [stdout]    |
[INFO] [stdout] 79 |             for col in 1..=N {
[INFO] [stdout]    |                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeInclusive` range syntax
[INFO] [stdout]   --> src/sudoku.rs:80:28
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 for val in 1..=N {
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/sudoku.rs:248:18
[INFO] [stdout]     |
[INFO] [stdout] 248 |         for i in 0..N {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/sudoku.rs:250:22
[INFO] [stdout]     |
[INFO] [stdout] 250 |             for j in 0..N {
[INFO] [stdout]     |                      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> src/sudoku.rs:266:26
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 for _ in 1..n {
[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-6f17d22bba15001f/proc-macro2-1.0.52/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] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "818daa845aaab230c19119283386acbe56f94d86f0f3655177eacbadc4e1a066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818daa845aaab230c19119283386acbe56f94d86f0f3655177eacbadc4e1a066", kill_on_drop: false }`
[INFO] [stdout] 818daa845aaab230c19119283386acbe56f94d86f0f3655177eacbadc4e1a066
