[INFO] fetching crate grenad 0.2.0...
[INFO] checking grenad-0.2.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate grenad 0.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate grenad 0.2.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grenad 0.2.0
[INFO] finished tweaking crates.io crate grenad 0.2.0
[INFO] tweaked toml for crates.io crate grenad 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e86b084b43d1cdc3f66d64f650bcc9ff0fa6c103c483084b7a9635c81ecadab
[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" "9e86b084b43d1cdc3f66d64f650bcc9ff0fa6c103c483084b7a9635c81ecadab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e86b084b43d1cdc3f66d64f650bcc9ff0fa6c103c483084b7a9635c81ecadab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e86b084b43d1cdc3f66d64f650bcc9ff0fa6c103c483084b7a9635c81ecadab", kill_on_drop: false }`
[INFO] [stdout] 9e86b084b43d1cdc3f66d64f650bcc9ff0fa6c103c483084b7a9635c81ecadab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6e2f178bd08c9c6af32ecdebc85d4f38488eb45d77acd1570f85ac1937942af
[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" "d6e2f178bd08c9c6af32ecdebc85d4f38488eb45d77acd1570f85ac1937942af", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling bytemuck_derive v1.0.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]     Checking zstd v0.5.4+zstd.1.4.7
[INFO] [stderr]     Checking grenad v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `Cow` in this scope
[INFO] [stdout]    --> src/merger.rs:204:43
[INFO] [stdout]     |
[INFO] [stdout] 204 |         fn merge<'a>(_key: &[u8], vals: &[Cow<'a, [u8]>]) -> Result<Cow<'a, [u8]>, Infallible> {
[INFO] [stdout]     |                                           ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::merger::Cow;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use std::borrow::Cow;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Cow` in this scope
[INFO] [stdout]    --> src/merger.rs:204:69
[INFO] [stdout]     |
[INFO] [stdout] 204 |         fn merge<'a>(_key: &[u8], vals: &[Cow<'a, [u8]>]) -> Result<Cow<'a, [u8]>, Infallible> {
[INFO] [stdout]     |                                                                     ^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::merger::Cow;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use std::borrow::Cow;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Writer`
[INFO] [stdout]    --> src/merger.rs:217:22
[INFO] [stdout]     |
[INFO] [stdout] 217 |             let wb = Writer::builder();
[INFO] [stdout]     |                      ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::Writer;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use zstd::stream::zio::Writer;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FileFuse`
[INFO] [stdout]    --> src/merger.rs:229:24
[INFO] [stdout]     |
[INFO] [stdout] 229 |             let file = FileFuse::builder().shrink_size(4096).build(file);
[INFO] [stdout]     |                        ^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::FileFuse;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Reader`
[INFO] [stdout]    --> src/merger.rs:230:26
[INFO] [stdout]     |
[INFO] [stdout] 230 |             let reader = Reader::new(file).unwrap();
[INFO] [stdout]     |                          ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::Reader;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use zstd::stream::zio::Reader;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Merger`
[INFO] [stdout]    --> src/merger.rs:234:27
[INFO] [stdout]     |
[INFO] [stdout] 234 |         let mut builder = Merger::builder(merge);
[INFO] [stdout]     |                           ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::Merger;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Writer`
[INFO] [stdout]    --> src/merger.rs:239:26
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let mut writer = Writer::builder().build(file3).unwrap();
[INFO] [stdout]     |                          ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::Writer;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use zstd::stream::zio::Writer;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Reader`
[INFO] [stdout]    --> src/merger.rs:245:26
[INFO] [stdout]     |
[INFO] [stdout] 245 |         let mut reader = Reader::new(file).unwrap();
[INFO] [stdout]     |                          ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use crate::Reader;
[INFO] [stdout]     |
[INFO] [stdout] 198 |     use zstd::stream::zio::Reader;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Seek`
[INFO] [stdout]    --> src/merger.rs:202:23
[INFO] [stdout]     |
[INFO] [stdout] 202 |         use std::io::{Seek, SeekFrom};
[INFO] [stdout]     |                       ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `grenad` due to 9 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d6e2f178bd08c9c6af32ecdebc85d4f38488eb45d77acd1570f85ac1937942af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e2f178bd08c9c6af32ecdebc85d4f38488eb45d77acd1570f85ac1937942af", kill_on_drop: false }`
[INFO] [stdout] d6e2f178bd08c9c6af32ecdebc85d4f38488eb45d77acd1570f85ac1937942af