[INFO] fetching crate elem 0.1.3...
[INFO] checking elem-0.1.3 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate elem 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate elem 0.1.3 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elem 0.1.3
[INFO] finished tweaking crates.io crate elem 0.1.3
[INFO] tweaked toml for crates.io crate elem 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate elem 0.1.3 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" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-tokens v0.39.0
[INFO] [stderr]   Downloaded gdkx11-sys v0.15.1
[INFO] [stderr]   Downloaded system-deps v6.0.3
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded gtk3-macros v0.15.4
[INFO] [stderr]   Downloaded windows-implement v0.39.0
[INFO] [stderr]   Downloaded gobject-sys v0.15.10
[INFO] [stderr]   Downloaded libappindicator-sys v0.7.3
[INFO] [stderr]   Downloaded x11-dl v2.20.1
[INFO] [stderr]   Downloaded field-offset v0.3.4
[INFO] [stderr]   Downloaded atk-sys v0.15.1
[INFO] [stderr]   Downloaded cairo-sys-rs v0.15.1
[INFO] [stderr]   Downloaded gdk-pixbuf v0.15.11
[INFO] [stderr]   Downloaded paste v1.0.11
[INFO] [stderr]   Downloaded glib-macros v0.15.11
[INFO] [stderr]   Downloaded pango-sys v0.15.10
[INFO] [stderr]   Downloaded pango v0.15.10
[INFO] [stderr]   Downloaded cairo-rs v0.15.12
[INFO] [stderr]   Downloaded gio v0.15.12
[INFO] [stderr]   Downloaded gio-sys v0.15.10
[INFO] [stderr]   Downloaded gtk v0.15.5
[INFO] [stderr]   Downloaded windows_i686_gnu v0.39.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.39.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.39.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.39.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.39.0
[INFO] [stderr]   Downloaded x11 v2.20.1
[INFO] [stderr]   Downloaded glib-sys v0.15.10
[INFO] [stderr]   Downloaded gdk v0.15.4
[INFO] [stderr]   Downloaded tao v0.15.8
[INFO] [stderr]   Downloaded glib v0.15.12
[INFO] [stderr]   Downloaded gtk-sys v0.15.3
[INFO] [stderr]   Downloaded lodepng v3.7.2
[INFO] [stderr]   Downloaded tungstenite v0.18.0
[INFO] [stderr]   Downloaded gdk-sys v0.15.1
[INFO] [stderr]   Downloaded cfg-expr v0.11.0
[INFO] [stderr]   Downloaded atk v0.15.1
[INFO] [stderr]   Downloaded gdk-pixbuf-sys v0.15.10
[INFO] [stderr]   Downloaded libappindicator v0.7.1
[INFO] [stderr]   Downloaded fallible_collections v0.4.6
[INFO] [stderr]   Downloaded windows v0.39.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bce97d22ce476131ad1bcea52fe406325a052385277e6ba87e4f975873790ac4
[INFO] running `Command { std: "docker" "start" "-a" "bce97d22ce476131ad1bcea52fe406325a052385277e6ba87e4f975873790ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bce97d22ce476131ad1bcea52fe406325a052385277e6ba87e4f975873790ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce97d22ce476131ad1bcea52fe406325a052385277e6ba87e4f975873790ac4", kill_on_drop: false }`
[INFO] [stdout] bce97d22ce476131ad1bcea52fe406325a052385277e6ba87e4f975873790ac4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44bc95b5e2cd2c4dbd1af890b95e8f1ee0b5d77073370cabe52f2f2ad099fe23
[INFO] running `Command { std: "docker" "start" "-a" "44bc95b5e2cd2c4dbd1af890b95e8f1ee0b5d77073370cabe52f2f2ad099fe23", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 cfg-expr v0.11.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[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" "44bc95b5e2cd2c4dbd1af890b95e8f1ee0b5d77073370cabe52f2f2ad099fe23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44bc95b5e2cd2c4dbd1af890b95e8f1ee0b5d77073370cabe52f2f2ad099fe23", kill_on_drop: false }`
[INFO] [stdout] 44bc95b5e2cd2c4dbd1af890b95e8f1ee0b5d77073370cabe52f2f2ad099fe23
[INFO] checking elem-0.1.3 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate elem 0.1.3 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate elem 0.1.3 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elem 0.1.3
[INFO] finished tweaking crates.io crate elem 0.1.3
[INFO] tweaked toml for crates.io crate elem 0.1.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate elem 0.1.3 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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3338345f29631a570ce6f1cbbf57615cc3973b85dc6927bf2c14ad19cb52a7c9
[INFO] running `Command { std: "docker" "start" "-a" "3338345f29631a570ce6f1cbbf57615cc3973b85dc6927bf2c14ad19cb52a7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3338345f29631a570ce6f1cbbf57615cc3973b85dc6927bf2c14ad19cb52a7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3338345f29631a570ce6f1cbbf57615cc3973b85dc6927bf2c14ad19cb52a7c9", kill_on_drop: false }`
[INFO] [stdout] 3338345f29631a570ce6f1cbbf57615cc3973b85dc6927bf2c14ad19cb52a7c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dee01bf0469b0794dd010719077153699e11c671022b26c7747b44a156a5cb5
[INFO] running `Command { std: "docker" "start" "-a" "8dee01bf0469b0794dd010719077153699e11c671022b26c7747b44a156a5cb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 cfg-expr v0.11.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[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" "8dee01bf0469b0794dd010719077153699e11c671022b26c7747b44a156a5cb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dee01bf0469b0794dd010719077153699e11c671022b26c7747b44a156a5cb5", kill_on_drop: false }`
[INFO] [stdout] 8dee01bf0469b0794dd010719077153699e11c671022b26c7747b44a156a5cb5
