[INFO] fetching crate ncgopher 0.5.0...
[INFO] checking ncgopher-0.5.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate ncgopher 0.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ncgopher 0.5.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ncgopher 0.5.0
[INFO] finished tweaking crates.io crate ncgopher 0.5.0
[INFO] tweaked toml for crates.io crate ncgopher 0.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ncgopher 0.5.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded asn1-rs v0.5.1
[INFO] [stderr]   Downloaded enum-map-derive v0.8.0
[INFO] [stderr]   Downloaded gemtext v0.2.1
[INFO] [stderr]   Downloaded linkify v0.9.0
[INFO] [stderr]   Downloaded os_str_bytes v6.0.1
[INFO] [stderr]   Downloaded enum-map v2.1.0
[INFO] [stderr]   Downloaded pem v1.1.0
[INFO] [stderr]   Downloaded cursive_core v0.3.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.73
[INFO] [stderr]   Downloaded time v0.3.16
[INFO] [stderr]   Downloaded yasna v0.5.0
[INFO] [stderr]   Downloaded hashbrown v0.12.2
[INFO] [stderr]   Downloaded der-parser v8.1.0
[INFO] [stderr]   Downloaded enumset_derive v0.6.0
[INFO] [stderr]   Downloaded enumset v1.0.11
[INFO] [stderr]   Downloaded num-complex v0.4.1
[INFO] [stderr]   Downloaded hashlink v0.8.0
[INFO] [stderr]   Downloaded oid-registry v0.6.0
[INFO] [stderr]   Downloaded time-macros v0.2.5
[INFO] [stderr]   Downloaded libsqlite3-sys v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b849a1e4fead09cf4adec20caa03e255b18d754cc907401d7566d30ea585dd3
[INFO] running `Command { std: "docker" "start" "-a" "7b849a1e4fead09cf4adec20caa03e255b18d754cc907401d7566d30ea585dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b849a1e4fead09cf4adec20caa03e255b18d754cc907401d7566d30ea585dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b849a1e4fead09cf4adec20caa03e255b18d754cc907401d7566d30ea585dd3", kill_on_drop: false }`
[INFO] [stdout] 7b849a1e4fead09cf4adec20caa03e255b18d754cc907401d7566d30ea585dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1e8dc55b85992cbc69f757659a86143823f51fe7bfae7d439b74feac8581daa
[INFO] running `Command { std: "docker" "start" "-a" "b1e8dc55b85992cbc69f757659a86143823f51fe7bfae7d439b74feac8581daa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 itoa v1.0.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking getrandom v0.2.6
[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" "b1e8dc55b85992cbc69f757659a86143823f51fe7bfae7d439b74feac8581daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1e8dc55b85992cbc69f757659a86143823f51fe7bfae7d439b74feac8581daa", kill_on_drop: false }`
[INFO] [stdout] b1e8dc55b85992cbc69f757659a86143823f51fe7bfae7d439b74feac8581daa
[INFO] checking ncgopher-0.5.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] extracting crate ncgopher 0.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ncgopher 0.5.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ncgopher 0.5.0
[INFO] finished tweaking crates.io crate ncgopher 0.5.0
[INFO] tweaked toml for crates.io crate ncgopher 0.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ncgopher 0.5.0 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d84db25277c5c7e9acbd94f34ba8b6d1388b14fc60160942c2e5edbd40e26e54
[INFO] running `Command { std: "docker" "start" "-a" "d84db25277c5c7e9acbd94f34ba8b6d1388b14fc60160942c2e5edbd40e26e54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d84db25277c5c7e9acbd94f34ba8b6d1388b14fc60160942c2e5edbd40e26e54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84db25277c5c7e9acbd94f34ba8b6d1388b14fc60160942c2e5edbd40e26e54", kill_on_drop: false }`
[INFO] [stdout] d84db25277c5c7e9acbd94f34ba8b6d1388b14fc60160942c2e5edbd40e26e54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab5aabfbc52f4c5e37b6c19725bd5c9e7a754f44414bfab4a05fb1835f5b34b1
[INFO] running `Command { std: "docker" "start" "-a" "ab5aabfbc52f4c5e37b6c19725bd5c9e7a754f44414bfab4a05fb1835f5b34b1", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "ab5aabfbc52f4c5e37b6c19725bd5c9e7a754f44414bfab4a05fb1835f5b34b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab5aabfbc52f4c5e37b6c19725bd5c9e7a754f44414bfab4a05fb1835f5b34b1", kill_on_drop: false }`
[INFO] [stdout] ab5aabfbc52f4c5e37b6c19725bd5c9e7a754f44414bfab4a05fb1835f5b34b1