[INFO] fetching crate knowledge 0.4.3...
[INFO] checking knowledge-0.4.3 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate knowledge 0.4.3 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate knowledge 0.4.3 on toolchain 377afada703be70d3fdff9164a481570a3cba7fe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate knowledge 0.4.3
[INFO] finished tweaking crates.io crate knowledge 0.4.3
[INFO] tweaked toml for crates.io crate knowledge 0.4.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate knowledge 0.4.3 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" "+377afada703be70d3fdff9164a481570a3cba7fe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 442c82c03add04390b0f891d178446519bd62e2dfc50627feedf271d8f104187
[INFO] running `Command { std: "docker" "start" "-a" "442c82c03add04390b0f891d178446519bd62e2dfc50627feedf271d8f104187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "442c82c03add04390b0f891d178446519bd62e2dfc50627feedf271d8f104187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442c82c03add04390b0f891d178446519bd62e2dfc50627feedf271d8f104187", kill_on_drop: false }`
[INFO] [stdout] 442c82c03add04390b0f891d178446519bd62e2dfc50627feedf271d8f104187
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16f4b1964ad9b4fa8978eaf2fb967e89a5b6f94e1b7ce5cf1b1ace02644c49ea
[INFO] running `Command { std: "docker" "start" "-a" "16f4b1964ad9b4fa8978eaf2fb967e89a5b6f94e1b7ce5cf1b1ace02644c49ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.158
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling openssl-sys v0.9.83
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]     Checking lock_api v0.4.9
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking futures-io v0.3.27
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling openssl v0.10.48
[INFO] [stderr]     Checking io-lifetimes v1.0.9
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.53/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 serde_json v1.0.94
[INFO] [stderr]    Compiling portable-atomic v0.3.19
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking console v0.15.5
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stdout] error: aborting due to 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" "16f4b1964ad9b4fa8978eaf2fb967e89a5b6f94e1b7ce5cf1b1ace02644c49ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16f4b1964ad9b4fa8978eaf2fb967e89a5b6f94e1b7ce5cf1b1ace02644c49ea", kill_on_drop: false }`
[INFO] [stdout] 16f4b1964ad9b4fa8978eaf2fb967e89a5b6f94e1b7ce5cf1b1ace02644c49ea