[INFO] fetching crate embedded-profiling 0.1.6...
[INFO] testing embedded-profiling-0.1.6 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate embedded-profiling 0.1.6 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate embedded-profiling 0.1.6 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5743bc3e6641cf4b8d1a28d98f1ac1dad43bbefa958a2d940db706035d5d199c
[INFO] running `Command { std: "docker" "start" "-a" "5743bc3e6641cf4b8d1a28d98f1ac1dad43bbefa958a2d940db706035d5d199c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5743bc3e6641cf4b8d1a28d98f1ac1dad43bbefa958a2d940db706035d5d199c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5743bc3e6641cf4b8d1a28d98f1ac1dad43bbefa958a2d940db706035d5d199c", kill_on_drop: false }`
[INFO] [stdout] 5743bc3e6641cf4b8d1a28d98f1ac1dad43bbefa958a2d940db706035d5d199c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af071b8753f44535d99ebfc66ac22e672aac4e59acb7bc0f693a311be55a8fa9
[INFO] running `Command { std: "docker" "start" "-a" "af071b8753f44535d99ebfc66ac22e672aac4e59acb7bc0f693a311be55a8fa9", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling void v1.0.2
[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 nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.1
[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 2.17s
[INFO] running `Command { std: "docker" "inspect" "af071b8753f44535d99ebfc66ac22e672aac4e59acb7bc0f693a311be55a8fa9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af071b8753f44535d99ebfc66ac22e672aac4e59acb7bc0f693a311be55a8fa9", kill_on_drop: false }`
[INFO] [stdout] af071b8753f44535d99ebfc66ac22e672aac4e59acb7bc0f693a311be55a8fa9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31660fbdc4dd7696c42116424fcdc27143a92578438e7c0b436b7f91f2d4b1f3
[INFO] running `Command { std: "docker" "start" "-a" "31660fbdc4dd7696c42116424fcdc27143a92578438e7c0b436b7f91f2d4b1f3", 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" "31660fbdc4dd7696c42116424fcdc27143a92578438e7c0b436b7f91f2d4b1f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31660fbdc4dd7696c42116424fcdc27143a92578438e7c0b436b7f91f2d4b1f3", kill_on_drop: false }`
[INFO] [stdout] 31660fbdc4dd7696c42116424fcdc27143a92578438e7c0b436b7f91f2d4b1f3