[INFO] fetching crate embedded-profiling 0.1.5...
[INFO] testing embedded-profiling-0.1.5 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate embedded-profiling 0.1.5 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate embedded-profiling 0.1.5 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded-profiling 0.1.5
[INFO] finished tweaking crates.io crate embedded-profiling 0.1.5
[INFO] tweaked toml for crates.io crate embedded-profiling 0.1.5 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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 cortex-m v0.7.3
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded embedded-profiling-proc-macros v0.1.1
[INFO] [stderr]   Downloaded fugit v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8463a84d2569187a042b2145d2a255b59b5ba168b066ec7affd3c821ef999981
[INFO] running `Command { std: "docker" "start" "-a" "8463a84d2569187a042b2145d2a255b59b5ba168b066ec7affd3c821ef999981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8463a84d2569187a042b2145d2a255b59b5ba168b066ec7affd3c821ef999981", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8463a84d2569187a042b2145d2a255b59b5ba168b066ec7affd3c821ef999981", kill_on_drop: false }`
[INFO] [stdout] 8463a84d2569187a042b2145d2a255b59b5ba168b066ec7affd3c821ef999981
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e17467a18dbef50659756997050104010ca60b8a6c4411156db44b4488b0853
[INFO] running `Command { std: "docker" "start" "-a" "5e17467a18dbef50659756997050104010ca60b8a6c4411156db44b4488b0853", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling fugit v0.2.1
[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 v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "5e17467a18dbef50659756997050104010ca60b8a6c4411156db44b4488b0853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e17467a18dbef50659756997050104010ca60b8a6c4411156db44b4488b0853", kill_on_drop: false }`
[INFO] [stdout] 5e17467a18dbef50659756997050104010ca60b8a6c4411156db44b4488b0853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b864c3a80f4a98f76dffdab1b9b6b6547ef4001b896719fec25bc7a35686b39
[INFO] running `Command { std: "docker" "start" "-a" "1b864c3a80f4a98f76dffdab1b9b6b6547ef4001b896719fec25bc7a35686b39", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling embedded-profiling v0.1.5 (/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" "1b864c3a80f4a98f76dffdab1b9b6b6547ef4001b896719fec25bc7a35686b39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b864c3a80f4a98f76dffdab1b9b6b6547ef4001b896719fec25bc7a35686b39", kill_on_drop: false }`
[INFO] [stdout] 1b864c3a80f4a98f76dffdab1b9b6b6547ef4001b896719fec25bc7a35686b39