[INFO] fetching crate desk 0.0.1...
[INFO] testing desk-0.0.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate desk 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate desk 0.0.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate desk 0.0.1
[INFO] finished tweaking crates.io crate desk 0.0.1
[INFO] tweaked toml for crates.io crate desk 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28275009f8334b53d09443e6d9074afc383cb2a2124a1ca9dcabb18ab449c37c
[INFO] running `Command { std: "docker" "start" "-a" "28275009f8334b53d09443e6d9074afc383cb2a2124a1ca9dcabb18ab449c37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28275009f8334b53d09443e6d9074afc383cb2a2124a1ca9dcabb18ab449c37c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28275009f8334b53d09443e6d9074afc383cb2a2124a1ca9dcabb18ab449c37c", kill_on_drop: false }`
[INFO] [stdout] 28275009f8334b53d09443e6d9074afc383cb2a2124a1ca9dcabb18ab449c37c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20ffdb1a2a160d07e6c1772185a9da5d400ec94d2cff670ba412b302ce84c935
[INFO] running `Command { std: "docker" "start" "-a" "20ffdb1a2a160d07e6c1772185a9da5d400ec94d2cff670ba412b302ce84c935", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling shelf v0.2.2
[INFO] [stderr]    Compiling desk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/desk.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |           &self.shelf.set(key, &value);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |           let _ = &self.shelf.set(key, &value);
[INFO] [stdout]    |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "20ffdb1a2a160d07e6c1772185a9da5d400ec94d2cff670ba412b302ce84c935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ffdb1a2a160d07e6c1772185a9da5d400ec94d2cff670ba412b302ce84c935", kill_on_drop: false }`
[INFO] [stdout] 20ffdb1a2a160d07e6c1772185a9da5d400ec94d2cff670ba412b302ce84c935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c87685c6b41a317597ab50b5d51100d9c15f693effa8c15ad975e46c93fcda9
[INFO] running `Command { std: "docker" "start" "-a" "8c87685c6b41a317597ab50b5d51100d9c15f693effa8c15ad975e46c93fcda9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling desk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/desk.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |           &self.shelf.set(key, &value);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |           let _ = &self.shelf.set(key, &value);
[INFO] [stdout]    |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/desk.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |   use super::*;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/desk.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 |           &self.shelf.set(key, &value);
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |           let _ = &self.shelf.set(key, &value);
[INFO] [stdout]    |           +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "8c87685c6b41a317597ab50b5d51100d9c15f693effa8c15ad975e46c93fcda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c87685c6b41a317597ab50b5d51100d9c15f693effa8c15ad975e46c93fcda9", kill_on_drop: false }`
[INFO] [stdout] 8c87685c6b41a317597ab50b5d51100d9c15f693effa8c15ad975e46c93fcda9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af39d98cd59a996565790dd6542e004866766df5889c35cff006ee0e28ec5198
[INFO] running `Command { std: "docker" "start" "-a" "af39d98cd59a996565790dd6542e004866766df5889c35cff006ee0e28ec5198", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/desk.rs:39:11
[INFO] [stderr]    |
[INFO] [stderr] 39 |           &self.shelf.set(key, &value);
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 39 |           let _ = &self.shelf.set(key, &value);
[INFO] [stderr]    |           +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `desk` (lib) generated 1 warning
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/desk.rs:55:7
[INFO] [stderr]    |
[INFO] [stderr] 55 |   use super::*;
[INFO] [stderr]    |       ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `desk` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/desk-60ed956dd60269c0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests desk
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "af39d98cd59a996565790dd6542e004866766df5889c35cff006ee0e28ec5198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af39d98cd59a996565790dd6542e004866766df5889c35cff006ee0e28ec5198", kill_on_drop: false }`
[INFO] [stdout] af39d98cd59a996565790dd6542e004866766df5889c35cff006ee0e28ec5198