[INFO] fetching crate stackstring 0.1.9...
[INFO] testing stackstring-0.1.9 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate stackstring 0.1.9 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate stackstring 0.1.9 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stackstring 0.1.9
[INFO] finished tweaking crates.io crate stackstring 0.1.9
[INFO] tweaked toml for crates.io crate stackstring 0.1.9 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] crate crates.io crate stackstring 0.1.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d945dcc1d586ce2b72fa1975c3b4e733439caddac7393453729ab2fd3273b316
[INFO] running `Command { std: "docker" "start" "-a" "d945dcc1d586ce2b72fa1975c3b4e733439caddac7393453729ab2fd3273b316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d945dcc1d586ce2b72fa1975c3b4e733439caddac7393453729ab2fd3273b316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d945dcc1d586ce2b72fa1975c3b4e733439caddac7393453729ab2fd3273b316", kill_on_drop: false }`
[INFO] [stdout] d945dcc1d586ce2b72fa1975c3b4e733439caddac7393453729ab2fd3273b316
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07b892b0ea247de01dfd1fed5593d8d6079e49d8dfc70294837422c65ed31b6a
[INFO] running `Command { std: "docker" "start" "-a" "07b892b0ea247de01dfd1fed5593d8d6079e49d8dfc70294837422c65ed31b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackstring v0.1.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "07b892b0ea247de01dfd1fed5593d8d6079e49d8dfc70294837422c65ed31b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07b892b0ea247de01dfd1fed5593d8d6079e49d8dfc70294837422c65ed31b6a", kill_on_drop: false }`
[INFO] [stdout] 07b892b0ea247de01dfd1fed5593d8d6079e49d8dfc70294837422c65ed31b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0e7c0e278cb6efb7cf149277c649203777ad8cbb77aa7400dd3edf9b8b78a76
[INFO] running `Command { std: "docker" "start" "-a" "d0e7c0e278cb6efb7cf149277c649203777ad8cbb77aa7400dd3edf9b8b78a76", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling stackstring v0.1.9 (/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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d0e7c0e278cb6efb7cf149277c649203777ad8cbb77aa7400dd3edf9b8b78a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0e7c0e278cb6efb7cf149277c649203777ad8cbb77aa7400dd3edf9b8b78a76", kill_on_drop: false }`
[INFO] [stdout] d0e7c0e278cb6efb7cf149277c649203777ad8cbb77aa7400dd3edf9b8b78a76