[INFO] fetching crate hacspec 0.2.0-beta.4...
[INFO] checking hacspec-0.2.0-beta.4 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate hacspec 0.2.0-beta.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate hacspec 0.2.0-beta.4 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/rust-toolchain
[INFO] started tweaking crates.io crate hacspec 0.2.0-beta.4
[INFO] finished tweaking crates.io crate hacspec 0.2.0-beta.4
[INFO] tweaked toml for crates.io crate hacspec 0.2.0-beta.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate hacspec 0.2.0-beta.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hacspec-util v0.1.0-beta.1
[INFO] [stderr]   Downloaded sized-chunks v0.6.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f0e6d281a553fd18395b9e45634a815ef27f65a290d24899db1049d9917be03
[INFO] running `Command { std: "docker" "start" "-a" "8f0e6d281a553fd18395b9e45634a815ef27f65a290d24899db1049d9917be03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f0e6d281a553fd18395b9e45634a815ef27f65a290d24899db1049d9917be03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f0e6d281a553fd18395b9e45634a815ef27f65a290d24899db1049d9917be03", kill_on_drop: false }`
[INFO] [stdout] 8f0e6d281a553fd18395b9e45634a815ef27f65a290d24899db1049d9917be03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6892d5eef221281fa71e4ffd2414e1489f6d1e9dadaae8b0ffca4088bc9cdc7a
[INFO] running `Command { std: "docker" "start" "-a" "6892d5eef221281fa71e4ffd2414e1489f6d1e9dadaae8b0ffca4088bc9cdc7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking sized-chunks v0.6.4
[INFO] [stderr]     Checking hacspec-util v0.1.0-beta.1
[INFO] [stderr]     Checking hacspec v0.2.0-beta.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate rustc_ast;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hacspec` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate rustc_ast;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6892d5eef221281fa71e4ffd2414e1489f6d1e9dadaae8b0ffca4088bc9cdc7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6892d5eef221281fa71e4ffd2414e1489f6d1e9dadaae8b0ffca4088bc9cdc7a", kill_on_drop: false }`
[INFO] [stdout] 6892d5eef221281fa71e4ffd2414e1489f6d1e9dadaae8b0ffca4088bc9cdc7a