[INFO] fetching crate rl2020 0.1.0...
[INFO] building rl2020-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rl2020 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rl2020 0.1.0
[INFO] finished tweaking crates.io crate rl2020 0.1.0
[INFO] tweaked toml for crates.io crate rl2020 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rl2020 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rl2020 0.1.0 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.14.0
[INFO] [stderr]   Downloaded getrandom v0.2.7
[INFO] [stderr]   Downloaded serde_derive v1.0.144
[INFO] [stderr]   Downloaded bumpalo v3.11.0
[INFO] [stderr]   Downloaded flate2 v1.0.24
[INFO] [stderr]   Downloaded serde v1.0.144
[INFO] [stderr]   Downloaded serde_json v1.0.85
[INFO] [stderr]   Downloaded libc v0.2.132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 780035762f410c0102bf216800a50643405de2d7656716af251291ab3878b32d
[INFO] running `Command { std: "docker" "start" "-a" "780035762f410c0102bf216800a50643405de2d7656716af251291ab3878b32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "780035762f410c0102bf216800a50643405de2d7656716af251291ab3878b32d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780035762f410c0102bf216800a50643405de2d7656716af251291ab3878b32d", kill_on_drop: false }`
[INFO] [stdout] 780035762f410c0102bf216800a50643405de2d7656716af251291ab3878b32d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a93ac2cf851b1c8382e5279da65aaa352a540978edddeebeeb428aa58a44fafe
[INFO] running `Command { std: "docker" "start" "-a" "a93ac2cf851b1c8382e5279da65aaa352a540978edddeebeeb428aa58a44fafe", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling bumpalo v3.11.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.83
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.83
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.83
[INFO] [stdout] error: older versions of the `wasm-bindgen` crate are incompatible with current versions of Rust; please update to `wasm-bindgen` v0.2.88
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasm-bindgen` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a93ac2cf851b1c8382e5279da65aaa352a540978edddeebeeb428aa58a44fafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a93ac2cf851b1c8382e5279da65aaa352a540978edddeebeeb428aa58a44fafe", kill_on_drop: false }`
[INFO] [stdout] a93ac2cf851b1c8382e5279da65aaa352a540978edddeebeeb428aa58a44fafe