[INFO] fetching crate critter 0.1.75...
[INFO] checking critter-0.1.75 against try#377afada703be70d3fdff9164a481570a3cba7fe for pr-113240
[INFO] extracting crate critter 0.1.75 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate critter 0.1.75 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 critter 0.1.75
[INFO] finished tweaking crates.io crate critter 0.1.75
[INFO] tweaked toml for crates.io crate critter 0.1.75 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate critter 0.1.75 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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+377afada703be70d3fdff9164a481570a3cba7fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 450af95e128a09db573e33f6334c8e007c571aaef409d13dfed8687c81e332af
[INFO] running `Command { std: "docker" "start" "-a" "450af95e128a09db573e33f6334c8e007c571aaef409d13dfed8687c81e332af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "450af95e128a09db573e33f6334c8e007c571aaef409d13dfed8687c81e332af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450af95e128a09db573e33f6334c8e007c571aaef409d13dfed8687c81e332af", kill_on_drop: false }`
[INFO] [stdout] 450af95e128a09db573e33f6334c8e007c571aaef409d13dfed8687c81e332af
[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=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] 3a90fdb7441b3d161bd97ea36fb6bfc443a1e83039acd21bbe79dc7a0e17d5d2
[INFO] running `Command { std: "docker" "start" "-a" "3a90fdb7441b3d161bd97ea36fb6bfc443a1e83039acd21bbe79dc7a0e17d5d2", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling libc v0.2.145
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling openssl-sys v0.9.88
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling openssl v0.10.54
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking psl-types v2.0.11
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling cookie v0.16.2
[INFO] [stderr]     Checking ipnet v2.7.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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 urlencoding v2.1.2
[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" "3a90fdb7441b3d161bd97ea36fb6bfc443a1e83039acd21bbe79dc7a0e17d5d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a90fdb7441b3d161bd97ea36fb6bfc443a1e83039acd21bbe79dc7a0e17d5d2", kill_on_drop: false }`
[INFO] [stdout] 3a90fdb7441b3d161bd97ea36fb6bfc443a1e83039acd21bbe79dc7a0e17d5d2