[INFO] cloning repository https://github.com/shapedthought/vbm_rust_backup
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shapedthought/vbm_rust_backup" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshapedthought%2Fvbm_rust_backup", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshapedthought%2Fvbm_rust_backup'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e74ab2ee76736ec3f522a0b9ff6e5b4010a86573
[INFO] checking shapedthought/vbm_rust_backup against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113240
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshapedthought%2Fvbm_rust_backup" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shapedthought/vbm_rust_backup on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shapedthought/vbm_rust_backup
[INFO] finished tweaking git repo https://github.com/shapedthought/vbm_rust_backup
[INFO] tweaked toml for git repo https://github.com/shapedthought/vbm_rust_backup written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shapedthought/vbm_rust_backup 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" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v4.0.8
[INFO] [stderr]   Downloaded smallvec v1.8.1
[INFO] [stderr]   Downloaded difflib v0.4.0
[INFO] [stderr]   Downloaded predicates-core v1.0.3
[INFO] [stderr]   Downloaded predicates-tree v1.0.5
[INFO] [stderr]   Downloaded assert_cmd v2.0.4
[INFO] [stderr]   Downloaded debug-helper v0.3.13
[INFO] [stderr]   Downloaded predicates v2.1.1
[INFO] [stderr]   Downloaded tiger v0.1.0
[INFO] [stderr]   Downloaded strum_macros v0.24.2
[INFO] [stderr]   Downloaded crc-any v2.4.3
[INFO] [stderr]   Downloaded comfy-table v6.1.0
[INFO] [stderr]   Downloaded dialoguer v0.10.2
[INFO] [stderr]   Downloaded clap v4.0.8
[INFO] [stderr]   Downloaded unicode-normalization v0.1.20
[INFO] [stderr]   Downloaded des v0.7.0
[INFO] [stderr]   Downloaded magic-crypt v3.1.10
[INFO] [stderr]   Downloaded spinners v4.1.0
[INFO] [stderr]   Downloaded termtree v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2336a8adb28f61c10c6ccde8a7f8a8dbc9ecb074c3d8bd257f6619d1f3fb4262
[INFO] running `Command { std: "docker" "start" "-a" "2336a8adb28f61c10c6ccde8a7f8a8dbc9ecb074c3d8bd257f6619d1f3fb4262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2336a8adb28f61c10c6ccde8a7f8a8dbc9ecb074c3d8bd257f6619d1f3fb4262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2336a8adb28f61c10c6ccde8a7f8a8dbc9ecb074c3d8bd257f6619d1f3fb4262", kill_on_drop: false }`
[INFO] [stdout] 2336a8adb28f61c10c6ccde8a7f8a8dbc9ecb074c3d8bd257f6619d1f3fb4262
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 758ac6f37c0f0ff5c8185082b8aa84ce2c6633e572f9e5274fe423b0d5d42b42
[INFO] running `Command { std: "docker" "start" "-a" "758ac6f37c0f0ff5c8185082b8aa84ce2c6633e572f9e5274fe423b0d5d42b42", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking smallvec v1.8.1
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 parking_lot_core v0.9.3
[INFO] [stderr]     Checking tracing-core v0.1.28
[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" "758ac6f37c0f0ff5c8185082b8aa84ce2c6633e572f9e5274fe423b0d5d42b42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "758ac6f37c0f0ff5c8185082b8aa84ce2c6633e572f9e5274fe423b0d5d42b42", kill_on_drop: false }`
[INFO] [stdout] 758ac6f37c0f0ff5c8185082b8aa84ce2c6633e572f9e5274fe423b0d5d42b42