[INFO] fetching crate seer 0.0.3...
[INFO] checking seer-0.0.3 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate seer 0.0.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate seer 0.0.3 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seer 0.0.3
[INFO] finished tweaking crates.io crate seer 0.0.3
[INFO] tweaked toml for crates.io crate seer 0.0.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log_settings v0.1.2
[INFO] [stderr]   Downloaded seer-z3 v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 135a0ee6806c3bf40d6ee7aecb9f7d5f3eb967db51d08eedf71f08d600080f19
[INFO] running `Command { std: "docker" "start" "-a" "135a0ee6806c3bf40d6ee7aecb9f7d5f3eb967db51d08eedf71f08d600080f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "135a0ee6806c3bf40d6ee7aecb9f7d5f3eb967db51d08eedf71f08d600080f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "135a0ee6806c3bf40d6ee7aecb9f7d5f3eb967db51d08eedf71f08d600080f19", kill_on_drop: false }`
[INFO] [stdout] 135a0ee6806c3bf40d6ee7aecb9f7d5f3eb967db51d08eedf71f08d600080f19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f937a37e05a631a0dc81957ec088ce598aabb1ff7a72430eb6482641714740ca
[INFO] running `Command { std: "docker" "start" "-a" "f937a37e05a631a0dc81957ec088ce598aabb1ff7a72430eb6482641714740ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking z3-sys v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]     Checking log_settings v0.1.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking seer-z3 v0.1.2
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]     Checking tester v0.6.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking cargo_metadata v0.1.2
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking seer v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0462]: found staticlib `rustc` instead of rlib or dylib
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate rustc;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: please recompile that crate using --crate-type lib
[INFO] [stdout]    = note: the following crate versions were found:
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.msan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.lsan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.asan.a
[INFO] [stdout]            crate `rustc`: /opt/rustwide/rustup-home/toolchains/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc-nightly_rt.tsan.a
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `seer`
[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" "f937a37e05a631a0dc81957ec088ce598aabb1ff7a72430eb6482641714740ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f937a37e05a631a0dc81957ec088ce598aabb1ff7a72430eb6482641714740ca", kill_on_drop: false }`
[INFO] [stdout] f937a37e05a631a0dc81957ec088ce598aabb1ff7a72430eb6482641714740ca