[INFO] cloning repository https://github.com/ConnorSkees/zip-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConnorSkees/zip-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fzip-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fzip-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6698a17090158341a4e094a6be2551eda2bf6ad4
[INFO] checking ConnorSkees/zip-rs against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConnorSkees%2Fzip-rs" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ConnorSkees/zip-rs on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ConnorSkees/zip-rs
[INFO] finished tweaking git repo https://github.com/ConnorSkees/zip-rs
[INFO] tweaked toml for git repo https://github.com/ConnorSkees/zip-rs written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/ConnorSkees/zip-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cfc7f9e7a422076ffb72eda88579916a4105553124e58ed94d33a55333be324
[INFO] running `Command { std: "docker" "start" "-a" "5cfc7f9e7a422076ffb72eda88579916a4105553124e58ed94d33a55333be324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cfc7f9e7a422076ffb72eda88579916a4105553124e58ed94d33a55333be324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cfc7f9e7a422076ffb72eda88579916a4105553124e58ed94d33a55333be324", kill_on_drop: false }`
[INFO] [stdout] 5cfc7f9e7a422076ffb72eda88579916a4105553124e58ed94d33a55333be324
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29dc9caacdfa759833119413f53926cde77a372eb315a48fff04c0b66841eac0
[INFO] running `Command { std: "docker" "start" "-a" "29dc9caacdfa759833119413f53926cde77a372eb315a48fff04c0b66841eac0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking bitreader v0.3.2
[INFO] [stderr]     Checking miniz_oxide v0.3.5
[INFO] [stderr]     Checking flate2 v1.0.12
[INFO] [stderr]     Checking zip-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `external_attributes`
[INFO] [stdout]    --> src/lib.rs:537:13
[INFO] [stdout]     |
[INFO] [stdout] 537 |         let external_attributes: [u8; 4] = read_bytes_to_buffer!(self.reader, 4);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_external_attributes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `external_attributes`
[INFO] [stdout]    --> src/lib.rs:537:13
[INFO] [stdout]     |
[INFO] [stdout] 537 |         let external_attributes: [u8; 4] = read_bytes_to_buffer!(self.reader, 4);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_external_attributes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "29dc9caacdfa759833119413f53926cde77a372eb315a48fff04c0b66841eac0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29dc9caacdfa759833119413f53926cde77a372eb315a48fff04c0b66841eac0", kill_on_drop: false }`
[INFO] [stdout] 29dc9caacdfa759833119413f53926cde77a372eb315a48fff04c0b66841eac0