[INFO] fetching crate lz-str 0.2.1...
[INFO] checking lz-str-0.2.1 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate lz-str 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate lz-str 0.2.1 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 lz-str 0.2.1
[INFO] finished tweaking crates.io crate lz-str 0.2.1
[INFO] tweaked toml for crates.io crate lz-str 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate lz-str 0.2.1 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a7c47c07a65bcff09d24b87531aaddf72f2e79a5d4cbd751bf97d91bb35a5158
[INFO] running `Command { std: "docker" "start" "-a" "a7c47c07a65bcff09d24b87531aaddf72f2e79a5d4cbd751bf97d91bb35a5158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7c47c07a65bcff09d24b87531aaddf72f2e79a5d4cbd751bf97d91bb35a5158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7c47c07a65bcff09d24b87531aaddf72f2e79a5d4cbd751bf97d91bb35a5158", kill_on_drop: false }`
[INFO] [stdout] a7c47c07a65bcff09d24b87531aaddf72f2e79a5d4cbd751bf97d91bb35a5158
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c0faf93ed5ee53a879efd182317e1a0113edc9561fbf4c66d45cf5cf5820381f
[INFO] running `Command { std: "docker" "start" "-a" "c0faf93ed5ee53a879efd182317e1a0113edc9561fbf4c66d45cf5cf5820381f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 either v1.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[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" "c0faf93ed5ee53a879efd182317e1a0113edc9561fbf4c66d45cf5cf5820381f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0faf93ed5ee53a879efd182317e1a0113edc9561fbf4c66d45cf5cf5820381f", kill_on_drop: false }`
[INFO] [stdout] c0faf93ed5ee53a879efd182317e1a0113edc9561fbf4c66d45cf5cf5820381f
[INFO] checking lz-str-0.2.1 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] extracting crate lz-str 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate lz-str 0.2.1 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 lz-str 0.2.1
[INFO] finished tweaking crates.io crate lz-str 0.2.1
[INFO] tweaked toml for crates.io crate lz-str 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate lz-str 0.2.1 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec50aa4c2fe138d78ce208e51f3b66daaa64d96824efed7c2842c6e8ac7160fb
[INFO] running `Command { std: "docker" "start" "-a" "ec50aa4c2fe138d78ce208e51f3b66daaa64d96824efed7c2842c6e8ac7160fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec50aa4c2fe138d78ce208e51f3b66daaa64d96824efed7c2842c6e8ac7160fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec50aa4c2fe138d78ce208e51f3b66daaa64d96824efed7c2842c6e8ac7160fb", kill_on_drop: false }`
[INFO] [stdout] ec50aa4c2fe138d78ce208e51f3b66daaa64d96824efed7c2842c6e8ac7160fb
[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=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] c82f18fbcdf50282eb618146c8f208193edb9bca4c555a8448751bfed6b02450
[INFO] running `Command { std: "docker" "start" "-a" "c82f18fbcdf50282eb618146c8f208193edb9bca4c555a8448751bfed6b02450", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "c82f18fbcdf50282eb618146c8f208193edb9bca4c555a8448751bfed6b02450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c82f18fbcdf50282eb618146c8f208193edb9bca4c555a8448751bfed6b02450", kill_on_drop: false }`
[INFO] [stdout] c82f18fbcdf50282eb618146c8f208193edb9bca4c555a8448751bfed6b02450