[INFO] fetching crate ssh_ui 0.4.1...
[INFO] checking ssh_ui-0.4.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate ssh_ui 0.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ssh_ui 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ssh_ui 0.4.1
[INFO] tweaked toml for crates.io crate ssh_ui 0.4.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ssh_ui 0.4.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ssh_ui 0.4.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded russh-cryptovec v0.7.0
[INFO] [stderr]   Downloaded russh-keys v0.23.0-beta.1
[INFO] [stderr]   Downloaded bcrypt-pbkdf v0.9.0
[INFO] [stderr]   Downloaded darling_macro v0.14.2
[INFO] [stderr]   Downloaded universal-hash v0.5.0
[INFO] [stderr]   Downloaded block-padding v0.3.2
[INFO] [stderr]   Downloaded darling v0.14.2
[INFO] [stderr]   Downloaded aead v0.5.1
[INFO] [stderr]   Downloaded enum-map v2.4.2
[INFO] [stderr]   Downloaded russh v0.35.0-beta.9
[INFO] [stderr]   Downloaded darling_core v0.14.2
[INFO] [stderr]   Downloaded polyval v0.6.0
[INFO] [stderr]   Downloaded async-trait v0.1.63
[INFO] [stderr]   Downloaded aes-gcm v0.10.1
[INFO] [stderr]   Downloaded chacha20 v0.9.0
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78805b27c1001385e0bd6d5e821c5e56878cab83e4d8fc3424d3518bb5451807
[INFO] running `Command { std: "docker" "start" "-a" "78805b27c1001385e0bd6d5e821c5e56878cab83e4d8fc3424d3518bb5451807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78805b27c1001385e0bd6d5e821c5e56878cab83e4d8fc3424d3518bb5451807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78805b27c1001385e0bd6d5e821c5e56878cab83e4d8fc3424d3518bb5451807", kill_on_drop: false }`
[INFO] [stdout] 78805b27c1001385e0bd6d5e821c5e56878cab83e4d8fc3424d3518bb5451807
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a7c5b279f06a8aff8c0b5ee5a5f3b78161b96b429d30609d42705e00542dcac
[INFO] running `Command { std: "docker" "start" "-a" "7a7c5b279f06a8aff8c0b5ee5a5f3b78161b96b429d30609d42705e00542dcac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.6
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling polling v2.5.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[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] [stderr]    Compiling openssl-src v111.24.0+1.1.1s
[INFO] [stderr]     Checking concurrent-queue v2.1.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling winapi v0.3.9
[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" "7a7c5b279f06a8aff8c0b5ee5a5f3b78161b96b429d30609d42705e00542dcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a7c5b279f06a8aff8c0b5ee5a5f3b78161b96b429d30609d42705e00542dcac", kill_on_drop: false }`
[INFO] [stdout] 7a7c5b279f06a8aff8c0b5ee5a5f3b78161b96b429d30609d42705e00542dcac