[INFO] fetching crate rerast 0.1.95...
[INFO] checking rerast-0.1.95 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate rerast 0.1.95 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rerast 0.1.95 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rerast 0.1.95
[INFO] finished tweaking crates.io crate rerast 0.1.95
[INFO] tweaked toml for crates.io crate rerast 0.1.95 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate rerast 0.1.95 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rerast_macros v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab2e1f34050403c9ed0a429ecfe335ce1302ff2569f62b2aaf37f272b52eabbd
[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" "ab2e1f34050403c9ed0a429ecfe335ce1302ff2569f62b2aaf37f272b52eabbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2e1f34050403c9ed0a429ecfe335ce1302ff2569f62b2aaf37f272b52eabbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2e1f34050403c9ed0a429ecfe335ce1302ff2569f62b2aaf37f272b52eabbd", kill_on_drop: false }`
[INFO] [stdout] ab2e1f34050403c9ed0a429ecfe335ce1302ff2569f62b2aaf37f272b52eabbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b21b75ea9f5a1737481a0ff7cb2d62e7c664ffc139285029de8eecb0bddafe2d
[INFO] running `Command { std: "docker" "start" "-a" "b21b75ea9f5a1737481a0ff7cb2d62e7c664ffc139285029de8eecb0bddafe2d", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking diff v0.1.11
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking rerast_macros v0.1.12
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking rerast v0.1.95 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]   --> src/lib.rs:75:1
[INFO] [stdout]    |
[INFO] [stdout] 75 | 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 `rerast`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b21b75ea9f5a1737481a0ff7cb2d62e7c664ffc139285029de8eecb0bddafe2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21b75ea9f5a1737481a0ff7cb2d62e7c664ffc139285029de8eecb0bddafe2d", kill_on_drop: false }`
[INFO] [stdout] b21b75ea9f5a1737481a0ff7cb2d62e7c664ffc139285029de8eecb0bddafe2d
