[INFO] fetching crate weft 0.1.0...
[INFO] checking weft-0.1.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate weft 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate weft 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate weft 0.1.0
[INFO] finished tweaking crates.io crate weft 0.1.0
[INFO] tweaked toml for crates.io crate weft 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 69aabe5b2e86e946c4089580341ac405d22627554cdfe352e2627c0ce023d889
[INFO] running `Command { std: "docker" "start" "-a" "69aabe5b2e86e946c4089580341ac405d22627554cdfe352e2627c0ce023d889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69aabe5b2e86e946c4089580341ac405d22627554cdfe352e2627c0ce023d889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69aabe5b2e86e946c4089580341ac405d22627554cdfe352e2627c0ce023d889", kill_on_drop: false }`
[INFO] [stdout] 69aabe5b2e86e946c4089580341ac405d22627554cdfe352e2627c0ce023d889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34757352202b04629fbb2e4e9ad5ffc6236bb999ee5123f14c91130411a96447
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34757352202b04629fbb2e4e9ad5ffc6236bb999ee5123f14c91130411a96447", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling addr2line v0.13.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling html5ever v0.24.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling markup5ever v0.9.0
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]    Compiling kuchiki v0.7.3
[INFO] [stderr]    Compiling weft_derive v0.1.1
[INFO] [stderr]     Checking weft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> src/template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]  --> src/template.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]  --> tests/canary.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(WeftRenderable)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]   --> tests/canary.rs:28:14
[INFO] [stdout]    |
[INFO] [stdout] 28 |     #[derive(WeftRenderable)]
[INFO] [stdout]    |              ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]   --> tests/canary.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 | #[derive(WeftRenderable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]   --> tests/canary.rs:75:10
[INFO] [stdout]    |
[INFO] [stdout] 75 | #[derive(WeftRenderable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]   --> tests/canary.rs:96:10
[INFO] [stdout]    |
[INFO] [stdout] 96 | #[derive(WeftRenderable)]
[INFO] [stdout]    |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:119:10
[INFO] [stdout]     |
[INFO] [stdout] 119 | #[derive(WeftRenderable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:156:10
[INFO] [stdout]     |
[INFO] [stdout] 156 | #[derive(WeftRenderable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:179:10
[INFO] [stdout]     |
[INFO] [stdout] 179 | #[derive(WeftRenderable)]
[INFO] [stdout]     |          ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:207:14
[INFO] [stdout]     |
[INFO] [stdout] 207 |     #[derive(WeftRenderable)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |     #[derive(WeftRenderable)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:243:14
[INFO] [stdout]     |
[INFO] [stdout] 243 |     #[derive(WeftRenderable)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `weft`
[INFO] [stdout]    --> tests/canary.rs:261:14
[INFO] [stdout]     |
[INFO] [stdout] 261 |     #[derive(WeftRenderable)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^ could not find `prelude` in `weft`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `weft`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "34757352202b04629fbb2e4e9ad5ffc6236bb999ee5123f14c91130411a96447", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34757352202b04629fbb2e4e9ad5ffc6236bb999ee5123f14c91130411a96447", kill_on_drop: false }`
[INFO] [stdout] 34757352202b04629fbb2e4e9ad5ffc6236bb999ee5123f14c91130411a96447
