[INFO] fetching crate bookshelf 1.0.3...
[INFO] checking bookshelf-1.0.3 against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] extracting crate bookshelf 1.0.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bookshelf 1.0.3 on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bookshelf 1.0.3
[INFO] finished tweaking crates.io crate bookshelf 1.0.3
[INFO] tweaked toml for crates.io crate bookshelf 1.0.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate bookshelf 1.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bd5b44e0b4d4bd8456ac5448d5f49787ae5138c0781ed2eb21c03c9a5c2ca11
[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" "7bd5b44e0b4d4bd8456ac5448d5f49787ae5138c0781ed2eb21c03c9a5c2ca11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bd5b44e0b4d4bd8456ac5448d5f49787ae5138c0781ed2eb21c03c9a5c2ca11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bd5b44e0b4d4bd8456ac5448d5f49787ae5138c0781ed2eb21c03c9a5c2ca11", kill_on_drop: false }`
[INFO] [stdout] 7bd5b44e0b4d4bd8456ac5448d5f49787ae5138c0781ed2eb21c03c9a5c2ca11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9acd49adfa6466e7271387f052a77d151aa1ea2e63ad68178541242862ea443f
[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" "9acd49adfa6466e7271387f052a77d151aa1ea2e63ad68178541242862ea443f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking shellexpand v2.1.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking serde_yaml v0.8.16
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking bookshelf v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/fsio.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Err(e) => {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/fsio.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Err(e) => {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let p = shellexpand::full(config.get("data_dir").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 53 |             config.insert("data_dir".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here     - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let p = shellexpand::full(config.get("modules_dir").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 44 |             config.insert("modules_dir".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here        - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let p = shellexpand::full(config.get("index_file").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 62 |             config.insert("index_file".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here       - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let p = shellexpand::full(config.get("data_dir").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 53 |             config.insert("data_dir".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here     - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let p = shellexpand::full(config.get("modules_dir").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 44 |             config.insert("modules_dir".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here        - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `config` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/fsio.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let p = shellexpand::full(config.get("index_file").unwrap());
[INFO] [stdout]    |                               ------ immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 62 |             config.insert("index_file".to_string(), p.to_string());
[INFO] [stdout]    |             ^^^^^^ mutable borrow occurs here       - immutable borrow later used here
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]    = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]  --> src/tui.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     config: &'lt HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `shelf`
[INFO] [stdout]  --> src/tui.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     shelf: &'lt Shelf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `module_handler`
[INFO] [stdout]  --> src/tui.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     module_handler: &'lt ModuleHandler,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]  --> src/tui.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     config: &'lt HashMap<String, String>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `shelf`
[INFO] [stdout]  --> src/tui.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     shelf: &'lt Shelf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `module_handler`
[INFO] [stdout]  --> src/tui.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     module_handler: &'lt ModuleHandler,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.56s
[INFO] running `Command { std: "docker" "inspect" "9acd49adfa6466e7271387f052a77d151aa1ea2e63ad68178541242862ea443f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9acd49adfa6466e7271387f052a77d151aa1ea2e63ad68178541242862ea443f", kill_on_drop: false }`
[INFO] [stdout] 9acd49adfa6466e7271387f052a77d151aa1ea2e63ad68178541242862ea443f