[INFO] fetching crate readings-probe 0.1.8...
[INFO] building readings-probe-0.1.8 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate readings-probe 0.1.8 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate readings-probe 0.1.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate readings-probe 0.1.8
[INFO] tweaked toml for crates.io crate readings-probe 0.1.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate readings-probe 0.1.8 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate readings-probe 0.1.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fs_extra v1.2.0
[INFO] [stderr]   Downloaded jemallocator v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.108
[INFO] [stderr]   Downloaded jemalloc-sys v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4f35638d90397619ca06d69b69a3a60e96edb19d77ea9894f6a9523e06516b2
[INFO] running `Command { std: "docker" "start" "-a" "f4f35638d90397619ca06d69b69a3a60e96edb19d77ea9894f6a9523e06516b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4f35638d90397619ca06d69b69a3a60e96edb19d77ea9894f6a9523e06516b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f35638d90397619ca06d69b69a3a60e96edb19d77ea9894f6a9523e06516b2", kill_on_drop: false }`
[INFO] [stdout] f4f35638d90397619ca06d69b69a3a60e96edb19d77ea9894f6a9523e06516b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1f55f95e04a21b07f7e22e466b49ecb67d3fb8434174e89dbc787701a58b00
[INFO] running `Command { std: "docker" "start" "-a" "3a1f55f95e04a21b07f7e22e466b49ecb67d3fb8434174e89dbc787701a58b00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling readings-probe v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/lib.rs:251:27
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 .find(|m| (m.0 == name))
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 -                 .find(|m| (m.0 == name))
[INFO] [stdout] 251 +                 .find(|m| m.0 == name)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "3a1f55f95e04a21b07f7e22e466b49ecb67d3fb8434174e89dbc787701a58b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1f55f95e04a21b07f7e22e466b49ecb67d3fb8434174e89dbc787701a58b00", kill_on_drop: false }`
[INFO] [stdout] 3a1f55f95e04a21b07f7e22e466b49ecb67d3fb8434174e89dbc787701a58b00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194f12e3ec1a5e6656468a1e64e18b3668344a8b8db9bfb9ed91e18a04600fda
[INFO] running `Command { std: "docker" "start" "-a" "194f12e3ec1a5e6656468a1e64e18b3668344a8b8db9bfb9ed91e18a04600fda", kill_on_drop: false }`
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/lib.rs:251:27
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 .find(|m| (m.0 == name))
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 -                 .find(|m| (m.0 == name))
[INFO] [stdout] 251 +                 .find(|m| m.0 == name)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling jemallocator v0.3.2
[INFO] [stderr]    Compiling readings-probe v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/lib.rs:251:27
[INFO] [stdout]     |
[INFO] [stdout] 251 |                 .find(|m| (m.0 == name))
[INFO] [stdout]     |                           ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 251 -                 .find(|m| (m.0 == name))
[INFO] [stdout] 251 +                 .find(|m| m.0 == name)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: fs_extra v1.2.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "194f12e3ec1a5e6656468a1e64e18b3668344a8b8db9bfb9ed91e18a04600fda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194f12e3ec1a5e6656468a1e64e18b3668344a8b8db9bfb9ed91e18a04600fda", kill_on_drop: false }`
[INFO] [stdout] 194f12e3ec1a5e6656468a1e64e18b3668344a8b8db9bfb9ed91e18a04600fda