[INFO] fetching crate dialectic 0.4.1...
[INFO] documenting dialectic-0.4.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate dialectic 0.4.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dialectic 0.4.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dialectic 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate dialectic 0.4.1
[INFO] tweaked toml for crates.io crate dialectic 0.4.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate dialectic 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dialectic-null v0.1.0
[INFO] [stderr]   Downloaded call-by v0.2.0
[INFO] [stderr]   Downloaded dialectic-tokio-serde-bincode v0.1.0
[INFO] [stderr]   Downloaded dialectic v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6707ec33890437424267c085d618e42382f7fe264b6118ebcc2849c8981bb383
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6707ec33890437424267c085d618e42382f7fe264b6118ebcc2849c8981bb383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6707ec33890437424267c085d618e42382f7fe264b6118ebcc2849c8981bb383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6707ec33890437424267c085d618e42382f7fe264b6118ebcc2849c8981bb383", kill_on_drop: false }`
[INFO] [stdout] 6707ec33890437424267c085d618e42382f7fe264b6118ebcc2849c8981bb383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15d2a1d907a821435db45b243b4b6957c136fa62dea14480166c644d743ccf68
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "15d2a1d907a821435db45b243b4b6957c136fa62dea14480166c644d743ccf68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling thunderdome v0.4.1
[INFO] [stderr]    Compiling dialectic v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking call-by v0.2.0
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling dialectic-compiler v0.1.0
[INFO] [stderr]    Compiling dialectic-macro v0.1.0
[INFO] [stderr]  Documenting dialectic v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `broken_intra_doc_links` has been renamed to `rustdoc::broken_intra_doc_links`
[INFO] [stdout]    --> src/lib.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 | #![forbid(broken_intra_doc_links)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::broken_intra_doc_links`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown disambiguator `crate::Session`
[INFO] [stdout]    --> src/lib.rs:87:51
[INFO] [stdout]     |
[INFO] [stdout] 87  | - To specify a session type, use the [`Session!`](crate::Session@macro) macro, which defines a
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 | #![forbid(broken_intra_doc_links)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown disambiguator `crate::Session`
[INFO] [stdout]   --> src/lib.rs:90:77
[INFO] [stdout]    |
[INFO] [stdout] 90 | - To construct a session-typed [`Chan`], use the methods on the [`Session`](crate::Session@trait)
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown disambiguator `crate::Session`
[INFO] [stdout]    --> src/lib.rs:103:16
[INFO] [stdout]     |
[INFO] [stdout] 103 | | [`Session!`](crate::Session@macro) Macro Invocation | Session Type (`S`) | Channel Operation(s)<br>(on a channel `c: Chan<S, _, _>`) | ...
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Session`
[INFO] [stdout]    --> src/types.rs:272:20
[INFO] [stdout]     |
[INFO] [stdout] 272 |     /// Seal the [`Session`] trait so only types defined in this crate can be session types.
[INFO] [stdout]     |                    ^^^^^^^ no item named `Session` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown disambiguator `crate::Session`
[INFO] [stdout]   --> src/session.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 | ///    [`Session!`](crate::Session@macro) macro, because it will throw an error if you try.
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "15d2a1d907a821435db45b243b4b6957c136fa62dea14480166c644d743ccf68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d2a1d907a821435db45b243b4b6957c136fa62dea14480166c644d743ccf68", kill_on_drop: false }`
[INFO] [stdout] 15d2a1d907a821435db45b243b4b6957c136fa62dea14480166c644d743ccf68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a31e17e3ddbc6ee23f6fa51ab33453362cee52a78e906c1287002ae62e5ab740
[INFO] running `Command { std: "docker" "start" "-a" "a31e17e3ddbc6ee23f6fa51ab33453362cee52a78e906c1287002ae62e5ab740", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling thunderdome v0.4.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling dialectic v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking call-by v0.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.6
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.5
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling dialectic-compiler v0.1.0
[INFO] [stderr]    Compiling dialectic-macro v0.1.0
[INFO] [stderr]  Documenting dialectic v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `broken_intra_doc_links` has been renamed to `rustdoc::broken_intra_doc_links`
[INFO] [stdout]    --> src/lib.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 | #![forbid(broken_intra_doc_links)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `rustdoc::broken_intra_doc_links`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown disambiguator `crate::Session`
[INFO] [stdout]    --> src/lib.rs:87:51
[INFO] [stdout]     |
[INFO] [stdout] 87  | - To specify a session type, use the [`Session!`](crate::Session@macro) macro, which defines a
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:133:11
[INFO] [stdout]     |
[INFO] [stdout] 133 | #![forbid(broken_intra_doc_links)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown disambiguator `crate::Session`
[INFO] [stdout]   --> src/lib.rs:90:77
[INFO] [stdout]    |
[INFO] [stdout] 90 | - To construct a session-typed [`Chan`], use the methods on the [`Session`](crate::Session@trait)
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown disambiguator `crate::Session`
[INFO] [stdout]    --> src/lib.rs:103:16
[INFO] [stdout]     |
[INFO] [stdout] 103 | | [`Session!`](crate::Session@macro) Macro Invocation | Session Type (`S`) | Channel Operation(s)<br>(on a channel `c: Chan<S, _, _>`) | ...
[INFO] [stdout]     |                ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unresolved link to `Session`
[INFO] [stdout]    --> src/types.rs:272:20
[INFO] [stdout]     |
[INFO] [stdout] 272 |     /// Seal the [`Session`] trait so only types defined in this crate can be session types.
[INFO] [stdout]     |                    ^^^^^^^ no item named `Session` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown disambiguator `crate::Session`
[INFO] [stdout]   --> src/session.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 | ///    [`Session!`](crate::Session@macro) macro, because it will throw an error if you try.
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see https://doc.rust-lang.org/1.61.0/rustdoc/linking-to-items-by-name.html#namespaces-and-disambiguators for more info about disambiguators
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dialectic`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name dialectic src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="bincode"' --cfg 'feature="serde"' --cfg 'feature="serde_json"' --cfg 'feature="tokio"' --cfg 'feature="tokio-util"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --cfg docsrs -Z unstable-options --document-private-items -C metadata=6a2d1a1901ad6964 -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-8be8e9d4f39bd50e.rmeta --extern call_by=/opt/rustwide/target/debug/deps/libcall_by-c838395910e6d4ca.rmeta --extern derivative=/opt/rustwide/target/debug/deps/libderivative-8a76949482f76d49.so --extern dialectic_macro=/opt/rustwide/target/debug/deps/libdialectic_macro-d0674452e69c6a4c.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-d7c1d79b935225b3.rmeta --extern pin_project=/opt/rustwide/target/debug/deps/libpin_project-28ac9837862ea030.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-94696213be83e14e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-17934dc9b48349dc.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-df62a6794b74038e.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-f91112286830a348.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-44f68920297c554e.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-0e975cfede5083f4.rmeta --extern-html-root-url 'bincode=https://docs.rs/bincode/1.3.2/' --extern-html-root-url 'call_by=https://docs.rs/call-by/0.2.0/' --extern-html-root-url 'derivative=https://docs.rs/derivative/2.2.0/' --extern-html-root-url 'dialectic_macro=https://docs.rs/dialectic-macro/0.1.0/' --extern-html-root-url 'futures=https://docs.rs/futures/0.3.13/' --extern-html-root-url 'pin_project=https://docs.rs/pin-project/1.0.6/' --extern-html-root-url 'serde=https://docs.rs/serde/1.0.125/' --extern-html-root-url 'serde_json=https://docs.rs/serde_json/1.0.64/' --extern-html-root-url 'static_assertions=https://docs.rs/static_assertions/1.1.0/' --extern-html-root-url 'thiserror=https://docs.rs/thiserror/1.0.24/' --extern-html-root-url 'tokio=https://docs.rs/tokio/1.4.0/' --extern-html-root-url 'tokio_util=https://docs.rs/tokio-util/0.6.5/' -Zunstable-options --crate-version 0.4.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a31e17e3ddbc6ee23f6fa51ab33453362cee52a78e906c1287002ae62e5ab740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a31e17e3ddbc6ee23f6fa51ab33453362cee52a78e906c1287002ae62e5ab740", kill_on_drop: false }`
[INFO] [stdout] a31e17e3ddbc6ee23f6fa51ab33453362cee52a78e906c1287002ae62e5ab740