[INFO] fetching crate buddy-alloc 0.5.1...
[INFO] checking buddy-alloc-0.5.1 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate buddy-alloc 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate buddy-alloc 0.5.1 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate buddy-alloc 0.5.1
[INFO] finished tweaking crates.io crate buddy-alloc 0.5.1
[INFO] tweaked toml for crates.io crate buddy-alloc 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate buddy-alloc 0.5.1 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-std-workspace-core v1.0.0
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.7
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] [stderr]   Downloaded proc-macro2 v1.0.54
[INFO] [stderr]   Downloaded syn v2.0.11
[INFO] [stderr]   Downloaded csv v1.2.1
[INFO] [stderr]   Downloaded compiler_builtins v0.1.90
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d368d09e33adabfc764f7e096d14bbb76281bc6db3c8b73937463ebd91a3e3d
[INFO] running `Command { std: "docker" "start" "-a" "3d368d09e33adabfc764f7e096d14bbb76281bc6db3c8b73937463ebd91a3e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d368d09e33adabfc764f7e096d14bbb76281bc6db3c8b73937463ebd91a3e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d368d09e33adabfc764f7e096d14bbb76281bc6db3c8b73937463ebd91a3e3d", kill_on_drop: false }`
[INFO] [stdout] 3d368d09e33adabfc764f7e096d14bbb76281bc6db3c8b73937463ebd91a3e3d
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36d12d0d978144c777f7c87d8f834b97381b4a98096eb398095262882d5f418b
[INFO] running `Command { std: "docker" "start" "-a" "36d12d0d978144c777f7c87d8f834b97381b4a98096eb398095262882d5f418b", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking buddy-alloc v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.54/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 csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[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" "36d12d0d978144c777f7c87d8f834b97381b4a98096eb398095262882d5f418b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d12d0d978144c777f7c87d8f834b97381b4a98096eb398095262882d5f418b", kill_on_drop: false }`
[INFO] [stdout] 36d12d0d978144c777f7c87d8f834b97381b4a98096eb398095262882d5f418b
[INFO] checking buddy-alloc-0.5.1 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate buddy-alloc 0.5.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate buddy-alloc 0.5.1 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate buddy-alloc 0.5.1
[INFO] finished tweaking crates.io crate buddy-alloc 0.5.1
[INFO] tweaked toml for crates.io crate buddy-alloc 0.5.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate buddy-alloc 0.5.1 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7970748069454c50b55c295a453e69501f1620640d2d3b161f21796f0ae5c24
[INFO] running `Command { std: "docker" "start" "-a" "a7970748069454c50b55c295a453e69501f1620640d2d3b161f21796f0ae5c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7970748069454c50b55c295a453e69501f1620640d2d3b161f21796f0ae5c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7970748069454c50b55c295a453e69501f1620640d2d3b161f21796f0ae5c24", kill_on_drop: false }`
[INFO] [stdout] a7970748069454c50b55c295a453e69501f1620640d2d3b161f21796f0ae5c24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffabe049b09d20f9f3d38e91fbb9a3bd8447a66a02236d19cd1427e2e713a80d
[INFO] running `Command { std: "docker" "start" "-a" "ffabe049b09d20f9f3d38e91fbb9a3bd8447a66a02236d19cd1427e2e713a80d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking buddy-alloc v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.54/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 crossbeam-channel v0.5.7
[INFO] [stderr]     Checking csv-core v0.1.10
[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" "ffabe049b09d20f9f3d38e91fbb9a3bd8447a66a02236d19cd1427e2e713a80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffabe049b09d20f9f3d38e91fbb9a3bd8447a66a02236d19cd1427e2e713a80d", kill_on_drop: false }`
[INFO] [stdout] ffabe049b09d20f9f3d38e91fbb9a3bd8447a66a02236d19cd1427e2e713a80d
