[INFO] fetching crate product-os-random 0.0.27...
[INFO] building product-os-random-0.0.27 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate product-os-random 0.0.27 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate product-os-random 0.0.27
[INFO] finished tweaking crates.io crate product-os-random 0.0.27
[INFO] tweaked toml for crates.io crate product-os-random 0.0.27 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate product-os-random 0.0.27 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding getrandom v0.2.16 (available: v0.3.3)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5daedda285470686e0ea2926189296abf74f7e12eff29ade02c25ba19359a69c
[INFO] running `Command { std: "docker" "start" "-a" "5daedda285470686e0ea2926189296abf74f7e12eff29ade02c25ba19359a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5daedda285470686e0ea2926189296abf74f7e12eff29ade02c25ba19359a69c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5daedda285470686e0ea2926189296abf74f7e12eff29ade02c25ba19359a69c", kill_on_drop: false }`
[INFO] [stdout] 5daedda285470686e0ea2926189296abf74f7e12eff29ade02c25ba19359a69c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b5b6d50ff9033a85167765fa29bb2abbb7e93b3d6a27de4d8ca034ae0c7d3912
[INFO] running `Command { std: "docker" "start" "-a" "b5b6d50ff9033a85167765fa29bb2abbb7e93b3d6a27de4d8ca034ae0c7d3912", kill_on_drop: false }`
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling product-os-random v0.0.27 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:223:30
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:259:34
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:366:30
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:390:34
[INFO] [stdout]     |
[INFO] [stdout] 390 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "b5b6d50ff9033a85167765fa29bb2abbb7e93b3d6a27de4d8ca034ae0c7d3912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5b6d50ff9033a85167765fa29bb2abbb7e93b3d6a27de4d8ca034ae0c7d3912", kill_on_drop: false }`
[INFO] [stdout] b5b6d50ff9033a85167765fa29bb2abbb7e93b3d6a27de4d8ca034ae0c7d3912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b8e81491d9a4e74e72acf60d77926f88ccc1df4ba2178291ddab527d8f1ccb74
[INFO] running `Command { std: "docker" "start" "-a" "b8e81491d9a4e74e72acf60d77926f88ccc1df4ba2178291ddab527d8f1ccb74", kill_on_drop: false }`
[INFO] [stderr]    Compiling product-os-random v0.0.27 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:223:30
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:259:34
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:366:30
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:390:34
[INFO] [stdout]     |
[INFO] [stdout] 390 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:223:30
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:259:34
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:366:30
[INFO] [stdout]     |
[INFO] [stdout] 366 |     fn fill_bytes(&mut self, dest: &mut [u8]) {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dest`
[INFO] [stdout]    --> src/lib.rs:390:34
[INFO] [stdout]     |
[INFO] [stdout] 390 |     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
[INFO] [stdout]     |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_dest`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "b8e81491d9a4e74e72acf60d77926f88ccc1df4ba2178291ddab527d8f1ccb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e81491d9a4e74e72acf60d77926f88ccc1df4ba2178291ddab527d8f1ccb74", kill_on_drop: false }`
[INFO] [stdout] b8e81491d9a4e74e72acf60d77926f88ccc1df4ba2178291ddab527d8f1ccb74