[INFO] fetching crate stackstring 0.1.7...
[INFO] checking stackstring-0.1.7 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate stackstring 0.1.7 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate stackstring 0.1.7 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stackstring 0.1.7
[INFO] finished tweaking crates.io crate stackstring 0.1.7
[INFO] tweaked toml for crates.io crate stackstring 0.1.7 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate stackstring 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eea6e2367d47cebd41862ad10f70eb506e5712b0b21b53335b96997943d1743c
[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" "eea6e2367d47cebd41862ad10f70eb506e5712b0b21b53335b96997943d1743c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eea6e2367d47cebd41862ad10f70eb506e5712b0b21b53335b96997943d1743c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea6e2367d47cebd41862ad10f70eb506e5712b0b21b53335b96997943d1743c", kill_on_drop: false }`
[INFO] [stdout] eea6e2367d47cebd41862ad10f70eb506e5712b0b21b53335b96997943d1743c
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2819f3d2d636f40dcbf32e6b82c01fa35378b325173081fdf18c38a427f4b0c6
[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" "2819f3d2d636f40dcbf32e6b82c01fa35378b325173081fdf18c38a427f4b0c6", kill_on_drop: false }`
[INFO] [stderr]     Checking stackstring v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rkyv`
[INFO] [stdout]  --> examples/rkyv.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rkyv::{
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rkyv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rkyv`
[INFO] [stdout]  --> examples/rkyv.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rkyv::{
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rkyv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Archive`
[INFO] [stdout]   --> examples/rkyv.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Archive, Deserialize, Serialize, PartialEq, Debug)]
[INFO] [stdout]    |          ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Deserialize`
[INFO] [stdout]   --> examples/rkyv.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Archive, Deserialize, Serialize, PartialEq, Debug)]
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the derive macro `Serialize`
[INFO] [stdout]   --> examples/rkyv.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(Archive, Deserialize, Serialize, PartialEq, Debug)]
[INFO] [stdout]    |                                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `AlignedSerializer`
[INFO] [stdout]   --> examples/rkyv.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let mut serializer = AlignedSerializer::new(AlignedVec::new());
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^ use of undeclared type `AlignedSerializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stackstring` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "2819f3d2d636f40dcbf32e6b82c01fa35378b325173081fdf18c38a427f4b0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2819f3d2d636f40dcbf32e6b82c01fa35378b325173081fdf18c38a427f4b0c6", kill_on_drop: false }`
[INFO] [stdout] 2819f3d2d636f40dcbf32e6b82c01fa35378b325173081fdf18c38a427f4b0c6