[INFO] cloning repository https://github.com/strnadchristopher/rust-tests
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/strnadchristopher/rust-tests" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrnadchristopher%2Frust-tests", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrnadchristopher%2Frust-tests'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7df2d9e53eab806de75746dfc81af31593e05bc0
[INFO] checking strnadchristopher/rust-tests/7df2d9e53eab806de75746dfc81af31593e05bc0 against master#7606c13961ddc1174b70638e934df0439b7dc515 for pr-121979
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstrnadchristopher%2Frust-tests" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/strnadchristopher/rust-tests on toolchain 7606c13961ddc1174b70638e934df0439b7dc515
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7606c13961ddc1174b70638e934df0439b7dc515" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/strnadchristopher/rust-tests
[INFO] finished tweaking git repo https://github.com/strnadchristopher/rust-tests
[INFO] tweaked toml for git repo https://github.com/strnadchristopher/rust-tests written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/strnadchristopher/rust-tests 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" "+7606c13961ddc1174b70638e934df0439b7dc515" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ref-cast-impl v1.0.13
[INFO] [stderr]   Downloaded tiger v0.1.0
[INFO] [stderr]   Downloaded des v0.7.0
[INFO] [stderr]   Downloaded magic-crypt v3.1.12
[INFO] [stderr]   Downloaded debug-helper v0.3.13
[INFO] [stderr]   Downloaded ref-cast v1.0.13
[INFO] [stderr]   Downloaded block-modes v0.8.1
[INFO] [stderr]   Downloaded crc-any v2.4.3
[INFO] [stderr]   Downloaded async-trait v0.1.59
[INFO] [stderr]   Downloaded serde_derive v1.0.150
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+7606c13961ddc1174b70638e934df0439b7dc515" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 833d36ec74b89e56e2ce306aa8c8cdd57c555e62bc78892853daddbcecb8c870
[INFO] running `Command { std: "docker" "start" "-a" "833d36ec74b89e56e2ce306aa8c8cdd57c555e62bc78892853daddbcecb8c870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "833d36ec74b89e56e2ce306aa8c8cdd57c555e62bc78892853daddbcecb8c870", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833d36ec74b89e56e2ce306aa8c8cdd57c555e62bc78892853daddbcecb8c870", kill_on_drop: false }`
[INFO] [stdout] 833d36ec74b89e56e2ce306aa8c8cdd57c555e62bc78892853daddbcecb8c870
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+7606c13961ddc1174b70638e934df0439b7dc515" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c55dfcb8dfc75fa46332275c15a94621e94b0fdf24cacf64b38388461fc072ae
[INFO] running `Command { std: "docker" "start" "-a" "c55dfcb8dfc75fa46332275c15a94621e94b0fdf24cacf64b38388461fc072ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.150
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]    Compiling yansi v0.5.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[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 futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling futures-task 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" "c55dfcb8dfc75fa46332275c15a94621e94b0fdf24cacf64b38388461fc072ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55dfcb8dfc75fa46332275c15a94621e94b0fdf24cacf64b38388461fc072ae", kill_on_drop: false }`
[INFO] [stdout] c55dfcb8dfc75fa46332275c15a94621e94b0fdf24cacf64b38388461fc072ae