[INFO] fetching crate qbt 0.1.4...
[INFO] checking qbt-0.1.4 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate qbt 0.1.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate qbt 0.1.4 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate qbt 0.1.4
[INFO] finished tweaking crates.io crate qbt 0.1.4
[INFO] tweaked toml for crates.io crate qbt 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate qbt 0.1.4 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qbittorrent-rs v0.1.3
[INFO] [stderr]   Downloaded pest_generator v2.4.0
[INFO] [stderr]   Downloaded pest_derive v2.4.0
[INFO] [stderr]   Downloaded pest_meta v2.4.0
[INFO] [stderr]   Downloaded hyper v0.14.21
[INFO] [stderr]   Downloaded config v0.13.2
[INFO] [stderr]   Downloaded cc v1.0.74
[INFO] [stderr]   Downloaded pest v2.4.0
[INFO] [stderr]   Downloaded cookie v0.16.1
[INFO] [stderr]   Downloaded reqwest v0.11.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad4e30f6ac3eb9588a23e3c6cfe502a50027e0fc96befc4bbd505d2761c5d9a7
[INFO] running `Command { std: "docker" "start" "-a" "ad4e30f6ac3eb9588a23e3c6cfe502a50027e0fc96befc4bbd505d2761c5d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad4e30f6ac3eb9588a23e3c6cfe502a50027e0fc96befc4bbd505d2761c5d9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4e30f6ac3eb9588a23e3c6cfe502a50027e0fc96befc4bbd505d2761c5d9a7", kill_on_drop: false }`
[INFO] [stdout] ad4e30f6ac3eb9588a23e3c6cfe502a50027e0fc96befc4bbd505d2761c5d9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e25ba05a60306c7e9fff48915cd05b75df624f3bed4f01b3e40b674c4457227
[INFO] running `Command { std: "docker" "start" "-a" "5e25ba05a60306c7e9fff48915cd05b75df624f3bed4f01b3e40b674c4457227", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking bytes v1.2.1
[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]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5e25ba05a60306c7e9fff48915cd05b75df624f3bed4f01b3e40b674c4457227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e25ba05a60306c7e9fff48915cd05b75df624f3bed4f01b3e40b674c4457227", kill_on_drop: false }`
[INFO] [stdout] 5e25ba05a60306c7e9fff48915cd05b75df624f3bed4f01b3e40b674c4457227
