[INFO] cloning repository https://github.com/acterglobal/matrix-migrate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acterglobal/matrix-migrate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facterglobal%2Fmatrix-migrate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facterglobal%2Fmatrix-migrate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28ac0ed78079d2e0b7a70686a6601f375f0eaa30
[INFO] checking acterglobal/matrix-migrate/28ac0ed78079d2e0b7a70686a6601f375f0eaa30 against master#f4d794ea0b845413344621d89f6c945062748485 for pr-119369
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facterglobal%2Fmatrix-migrate" "/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/acterglobal/matrix-migrate on toolchain f4d794ea0b845413344621d89f6c945062748485
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acterglobal/matrix-migrate
[INFO] finished tweaking git repo https://github.com/acterglobal/matrix-migrate
[INFO] tweaked toml for git repo https://github.com/acterglobal/matrix-migrate written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/acterglobal/matrix-migrate 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" "+f4d794ea0b845413344621d89f6c945062748485" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.matrix-sdk.ref
[INFO] [stderr]     Updating git repository `https://github.com/matrix-org/matrix-rust-sdk`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/matrix-org/vodozemac`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrix-pickle v0.1.0
[INFO] [stderr]   Downloaded ruma v0.8.2
[INFO] [stderr]   Downloaded serde_html_form v0.2.0
[INFO] [stderr]   Downloaded pkcs7 v0.3.0
[INFO] [stderr]   Downloaded indexed_db_futures v0.3.0
[INFO] [stderr]   Downloaded js_option v0.1.1
[INFO] [stderr]   Downloaded konst_proc_macros v0.2.11
[INFO] [stderr]   Downloaded ruma-identifiers-validation v0.9.1
[INFO] [stderr]   Downloaded konst_macro_rules v0.2.19
[INFO] [stderr]   Downloaded ruma-macros v0.11.3
[INFO] [stderr]   Downloaded konst v0.2.19
[INFO] [stderr]   Downloaded winnow v0.3.0
[INFO] [stderr]   Downloaded ruma-client-api v0.16.2
[INFO] [stderr]   Downloaded ruma-common v0.11.3
[INFO] [stderr]   Downloaded eyeball v0.1.3
[INFO] [stderr]   Downloaded readlock v0.1.1
[INFO] [stderr]   Downloaded matrix-pickle-derive v0.1.0
[INFO] [stderr]   Downloaded prost v0.11.7
[INFO] [stderr]   Downloaded eyeball-im v0.1.1
[INFO] [stderr]   Downloaded prost-derive v0.11.7
[INFO] [stderr]   Downloaded ruma-federation-api v0.7.1
[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" "+f4d794ea0b845413344621d89f6c945062748485" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64fa73f02aafe8705192f34b9f9a0e5870ad97045e68199d32feaf723afd890f
[INFO] running `Command { std: "docker" "start" "-a" "64fa73f02aafe8705192f34b9f9a0e5870ad97045e68199d32feaf723afd890f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64fa73f02aafe8705192f34b9f9a0e5870ad97045e68199d32feaf723afd890f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64fa73f02aafe8705192f34b9f9a0e5870ad97045e68199d32feaf723afd890f", kill_on_drop: false }`
[INFO] [stdout] 64fa73f02aafe8705192f34b9f9a0e5870ad97045e68199d32feaf723afd890f
[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" "+f4d794ea0b845413344621d89f6c945062748485" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54b6ada85b0ab2f9fa5863d005a40440d1c7a5fdd465173bb774c1a98d36863f
[INFO] running `Command { std: "docker" "start" "-a" "54b6ada85b0ab2f9fa5863d005a40440d1c7a5fdd465173bb774c1a98d36863f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.matrix-sdk.ref
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.108
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 indexmap v1.9.2
[INFO] [stderr]     Checking tracing-core v0.1.30
[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" "54b6ada85b0ab2f9fa5863d005a40440d1c7a5fdd465173bb774c1a98d36863f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b6ada85b0ab2f9fa5863d005a40440d1c7a5fdd465173bb774c1a98d36863f", kill_on_drop: false }`
[INFO] [stdout] 54b6ada85b0ab2f9fa5863d005a40440d1c7a5fdd465173bb774c1a98d36863f