[INFO] crate v11 0.0.5 is already in cache
[INFO] extracting crate v11 0.0.5 into work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/v11/0.0.5
[INFO] extracting crate v11 0.0.5 into work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/v11/0.0.5
[INFO] validating manifest of v11-0.0.5 on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of v11-0.0.5 on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing v11-0.0.5
[INFO] finished frobbing v11-0.0.5
[INFO] frobbed toml for v11-0.0.5 written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/v11/0.0.5/Cargo.toml
[INFO] started frobbing v11-0.0.5
[INFO] finished frobbing v11-0.0.5
[INFO] frobbed toml for v11-0.0.5 written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/reg/v11/0.0.5/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking v11-0.0.5 against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-2/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/reg/v11/0.0.5:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3a941188c52f6b408716522eac849472bb3c3e0d07b3af23c2371549ba61716e
[INFO] running `"docker" "start" "-a" "3a941188c52f6b408716522eac849472bb3c3e0d07b3af23c2371549ba61716e"`
[INFO] [stderr]    Compiling strings v0.1.1
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]     Checking erased-serde v0.3.9
[INFO] [stderr]    Compiling syntex_pos v0.59.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling extprim v1.7.0
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling syntex_errors v0.59.1
[INFO] [stderr]    Compiling syntex_syntax v0.59.1
[INFO] [stderr]    Compiling rustfmt v0.10.0
[INFO] [stderr]    Compiling v11_macros v0.0.5
[INFO] [stderr]     Checking v11 v0.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `RwLockReadGuard` is imported redundantly
[INFO] [stderr]    --> src/property.rs:354:13
[INFO] [stderr]     |
[INFO] [stderr] 3   | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]     |                         --------------- the item `RwLockReadGuard` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 354 |         use std::sync::RwLockReadGuard;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `RwLockReadGuard` is imported redundantly
[INFO] [stderr]    --> src/property.rs:354:13
[INFO] [stderr]     |
[INFO] [stderr] 3   | use std::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard};
[INFO] [stderr]     |                         --------------- the item `RwLockReadGuard` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 354 |         use std::sync::RwLockReadGuard;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/tracking.rs:97:18
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let (mut ships, ship_iter) = ships.editing();
[INFO] [stderr]    |                  ----^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/tracking.rs:101:18
[INFO] [stderr]     |
[INFO] [stderr] 101 |             let (mut sailors, sailors_iter) = sailors.editing();
[INFO] [stderr]     |                  ----^^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/auto_tracking.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 |             let (mut ships, ship_iter) = ships.editing();
[INFO] [stderr]    |                  ----^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/auto_tracking.rs:88:18
[INFO] [stderr]    |
[INFO] [stderr] 88 |             let (mut sailors, sailors_iter) = sailors.editing();
[INFO] [stderr]    |                  ----^^^^^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 47s
[INFO] running `"docker" "inspect" "3a941188c52f6b408716522eac849472bb3c3e0d07b3af23c2371549ba61716e"`
[INFO] running `"docker" "rm" "-f" "3a941188c52f6b408716522eac849472bb3c3e0d07b3af23c2371549ba61716e"`
[INFO] [stdout] 3a941188c52f6b408716522eac849472bb3c3e0d07b3af23c2371549ba61716e