[INFO] fetching crate ittech 0.2.0...
[INFO] checking ittech-0.2.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate ittech 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ittech 0.2.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ittech 0.2.0
[INFO] finished tweaking crates.io crate ittech 0.2.0
[INFO] tweaked toml for crates.io crate ittech 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ittech 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5716dd342ad9d9b1634b74323de8091a6c456453f95ffa57eb2632970e9a7943
[INFO] running `Command { std: "docker" "start" "-a" "5716dd342ad9d9b1634b74323de8091a6c456453f95ffa57eb2632970e9a7943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5716dd342ad9d9b1634b74323de8091a6c456453f95ffa57eb2632970e9a7943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5716dd342ad9d9b1634b74323de8091a6c456453f95ffa57eb2632970e9a7943", kill_on_drop: false }`
[INFO] [stdout] 5716dd342ad9d9b1634b74323de8091a6c456453f95ffa57eb2632970e9a7943
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efb29e7c587c638dbc569729b041d6f5b274a7e27e82dea51416c2b8ed019fac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "efb29e7c587c638dbc569729b041d6f5b274a7e27e82dea51416c2b8ed019fac", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking ittech v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wav`
[INFO] [stdout]   --> examples/render.rs:33:15
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let fmt = wav::Format::new(
[INFO] [stdout]    |               ^^^ use of undeclared crate or module `wav`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wav`
[INFO] [stdout]   --> examples/render.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         wav::Channels::Mono,
[INFO] [stdout]    |         ^^^ use of undeclared crate or module `wav`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wav`
[INFO] [stdout]   --> examples/render.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         wav::BitDepth::B16,
[INFO] [stdout]    |         ^^^ use of undeclared crate or module `wav`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wav`
[INFO] [stdout]   --> examples/render.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     wav::write(fmt, wav::PCMData::B16(buffer), &mut outfile)
[INFO] [stdout]    |     ^^^ use of undeclared crate or module `wav`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `wav`
[INFO] [stdout]   --> examples/render.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |     wav::write(fmt, wav::PCMData::B16(buffer), &mut outfile)
[INFO] [stdout]    |                     ^^^ use of undeclared crate or module `wav`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ittech`
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "efb29e7c587c638dbc569729b041d6f5b274a7e27e82dea51416c2b8ed019fac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb29e7c587c638dbc569729b041d6f5b274a7e27e82dea51416c2b8ed019fac", kill_on_drop: false }`
[INFO] [stdout] efb29e7c587c638dbc569729b041d6f5b274a7e27e82dea51416c2b8ed019fac