[INFO] fetching crate embedded-profiling 0.1.6...
[INFO] testing embedded-profiling-0.1.6 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate embedded-profiling 0.1.6 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate embedded-profiling 0.1.6 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-profiling 0.1.6
[INFO] finished tweaking crates.io crate embedded-profiling 0.1.6
[INFO] tweaked toml for crates.io crate embedded-profiling 0.1.6 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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 fugit v0.3.0
[INFO] [stderr]   Downloaded cortex-m v0.7.3
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embedded-profiling-proc-macros v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8a37d57efe2bef138596f48b3de28e8dcc5b13892a2521c009d2c42bb04c83a
[INFO] running `Command { std: "docker" "start" "-a" "f8a37d57efe2bef138596f48b3de28e8dcc5b13892a2521c009d2c42bb04c83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8a37d57efe2bef138596f48b3de28e8dcc5b13892a2521c009d2c42bb04c83a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a37d57efe2bef138596f48b3de28e8dcc5b13892a2521c009d2c42bb04c83a", kill_on_drop: false }`
[INFO] [stdout] f8a37d57efe2bef138596f48b3de28e8dcc5b13892a2521c009d2c42bb04c83a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9698184bece63cb90c7a2ab43565b94751067c3fe61f0270ab817c7d6a8ac475
[INFO] running `Command { std: "docker" "start" "-a" "9698184bece63cb90c7a2ab43565b94751067c3fe61f0270ab817c7d6a8ac475", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling fugit v0.3.0
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling embedded-profiling v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "9698184bece63cb90c7a2ab43565b94751067c3fe61f0270ab817c7d6a8ac475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9698184bece63cb90c7a2ab43565b94751067c3fe61f0270ab817c7d6a8ac475", kill_on_drop: false }`
[INFO] [stdout] 9698184bece63cb90c7a2ab43565b94751067c3fe61f0270ab817c7d6a8ac475
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 736172af6d04ddc3a4bb14e1a306048827a6c80990269402702e99e784bb70c7
[INFO] running `Command { std: "docker" "start" "-a" "736172af6d04ddc3a4bb14e1a306048827a6c80990269402702e99e784bb70c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-profiling v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]    --> src/mock.rs:17:13
[INFO] [stdout]     |
[INFO] [stdout] 17  |         use std::convert::TryInto;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `profiler` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/lib.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 232 |         let profiler = StdMockProfiler::default();
[INFO] [stdout]     |             -------- help: consider changing this to be mutable: `mut profiler`
[INFO] [stdout] 233 | 
[INFO] [stdout] 234 |         let start = profiler.start_snapshot();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embedded-profiling` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "736172af6d04ddc3a4bb14e1a306048827a6c80990269402702e99e784bb70c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "736172af6d04ddc3a4bb14e1a306048827a6c80990269402702e99e784bb70c7", kill_on_drop: false }`
[INFO] [stdout] 736172af6d04ddc3a4bb14e1a306048827a6c80990269402702e99e784bb70c7