[INFO] fetching crate pre 0.1.0...
[INFO] testing pre-0.1.0 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate pre 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pre 0.1.0 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pre 0.1.0
[INFO] finished tweaking crates.io crate pre 0.1.0
[INFO] tweaked toml for crates.io crate pre 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59bf8fc3106e2ed6d256db6882f464586cecf25763fbc5fbe1349c8aeb4b5436
[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" "59bf8fc3106e2ed6d256db6882f464586cecf25763fbc5fbe1349c8aeb4b5436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59bf8fc3106e2ed6d256db6882f464586cecf25763fbc5fbe1349c8aeb4b5436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59bf8fc3106e2ed6d256db6882f464586cecf25763fbc5fbe1349c8aeb4b5436", kill_on_drop: false }`
[INFO] [stdout] 59bf8fc3106e2ed6d256db6882f464586cecf25763fbc5fbe1349c8aeb4b5436
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c391070502111698dc80700012ebbc79d83ae6e6b609a0fdf1bdfcc5f632a2e
[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" "8c391070502111698dc80700012ebbc79d83ae6e6b609a0fdf1bdfcc5f632a2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling pre-proc-macro v0.1.0
[INFO] [stderr]    Compiling pre v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.63s
[INFO] running `Command { std: "docker" "inspect" "8c391070502111698dc80700012ebbc79d83ae6e6b609a0fdf1bdfcc5f632a2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c391070502111698dc80700012ebbc79d83ae6e6b609a0fdf1bdfcc5f632a2e", kill_on_drop: false }`
[INFO] [stdout] 8c391070502111698dc80700012ebbc79d83ae6e6b609a0fdf1bdfcc5f632a2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e155c44011664e08adde9955f861d08f7fd62e8426b27063819fdb87ae62485
[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" "9e155c44011664e08adde9955f861d08f7fd62e8426b27063819fdb87ae62485", kill_on_drop: false }`
[INFO] [stderr]    Compiling pre v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "9e155c44011664e08adde9955f861d08f7fd62e8426b27063819fdb87ae62485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e155c44011664e08adde9955f861d08f7fd62e8426b27063819fdb87ae62485", kill_on_drop: false }`
[INFO] [stdout] 9e155c44011664e08adde9955f861d08f7fd62e8426b27063819fdb87ae62485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6f973dcb806db1211cde32b35202dd825781c3f348da502685b46302045b3ac2
[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" "6f973dcb806db1211cde32b35202dd825781c3f348da502685b46302045b3ac2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pre-b52cf44b72568261
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pre
[INFO] [stdout] 
[INFO] [stdout] running 71 tests
[INFO] [stdout] test src/lib.rs - assure (line 701) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 851) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 858) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 872) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 879) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 896) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 909) ... ignored
[INFO] [stdout] test src/lib.rs - pre (line 590) ... ignored
[INFO] [stdout] test src/lib.rs - (line 432) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 148) ... ok
[INFO] [stdout] test src/libs.rs - libs::core::mem::ManuallyDrop__impl__drop__ (line 36) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::ManuallyDrop__impl__drop__ (line 52) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::ManuallyDrop__impl__take__ (line 36) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::ManuallyDrop__impl__take__ (line 52) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::MaybeUninit__impl__assume_init__ (line 36) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::MaybeUninit__impl__assume_init__ (line 52) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::mem::transmute_copy (line 45) ... ignored
[INFO] [stdout] test src/lib.rs - forward (line 792) ... FAILED
[INFO] [stdout] test src/libs.rs - libs::core::mem::zeroed (line 45) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::NonNull__impl__new_unchecked__ (line 36) ... ignored
[INFO] [stdout] test src/lib.rs - (line 63) ... FAILED
[INFO] [stdout] test src/libs.rs - libs::core::ptr::NonNull__impl__new_unchecked__ (line 52) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::copy (line 51) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::copy_nonoverlapping (line 52) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::drop_in_place (line 48) ... ignored
[INFO] [stdout] test src/lib.rs - (line 87) ... ok
[INFO] [stdout] test src/libs.rs - libs::core::ptr::read (line 48) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::read_unaligned (line 47) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::read_volatile (line 48) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::replace (line 47) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::swap (line 48) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::swap_nonoverlapping (line 51) ... ignored
[INFO] [stdout] test src/libs.rs - libs::core::ptr::write (line 46) ... ignored
[INFO] [stdout] test src/lib.rs - (line 394) ... FAILED
[INFO] [stdout] test src/libs.rs - libs::core::ptr::write_bytes (line 48) ... ignored
[INFO] [stdout] test src/lib.rs - pre (line 600) ... FAILED
[INFO] [stdout] test src/libs.rs - libs::core::ptr::write_unaligned (line 45) ... ignored
[INFO] [stdout] test src/lib.rs - extern_crate (line 937) ... FAILED
[INFO] [stdout] test src/lib.rs - forward (line 741) ... FAILED
[INFO] [stdout] test src/lib.rs - pre (line 575) ... ok
[INFO] [stdout] test src/lib.rs - pre (line 495) ... ok
[INFO] [stdout] test src/lib.rs - assure (line 667) ... FAILED
[INFO] [stdout] test src/libs.rs - libs::core::ptr::write_volatile (line 46) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::ManuallyDrop__impl__drop__ (line 59) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::ManuallyDrop__impl__drop__ (line 75) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::ManuallyDrop__impl__take__ (line 59) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::ManuallyDrop__impl__take__ (line 75) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::MaybeUninit__impl__assume_init__ (line 59) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::MaybeUninit__impl__assume_init__ (line 75) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::transmute_copy (line 68) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::mem::zeroed (line 68) ... ignored
[INFO] [stdout] test src/lib.rs - pre (line 615) ... ok
[INFO] [stdout] test src/lib.rs - pre (line 526) ... ok
[INFO] [stdout] test src/lib.rs - (line 373) ... ok
[INFO] [stdout] test src/lib.rs - pre (line 546) ... ok
[INFO] [stdout] test src/libs.rs - libs::std::ptr::NonNull__impl__new_unchecked__ (line 59) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::NonNull__impl__new_unchecked__ (line 75) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::copy (line 74) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::copy_nonoverlapping (line 75) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::drop_in_place (line 71) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::read (line 71) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::read_unaligned (line 70) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::read_volatile (line 71) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::replace (line 70) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::swap (line 71) ... ignored
[INFO] [stdout] test src/lib.rs - pre (line 624) ... ok
[INFO] [stdout] test src/libs.rs - libs::std::ptr::swap_nonoverlapping (line 74) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::write (line 69) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::write_bytes (line 71) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::write_unaligned (line 68) ... ignored
[INFO] [stdout] test src/libs.rs - libs::std::ptr::write_volatile (line 69) ... ignored
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 432) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:433:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - forward (line 792) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:793:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 63) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:64:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 394) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:395:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - pre (line 600) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:601:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - extern_crate (line 937) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:938:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - forward (line 741) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:742:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - assure (line 667) stdout ----
[INFO] [stdout] error[E0254]: the name `pre` is defined multiple times
[INFO] [stdout]  --> src/lib.rs:668:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate pre;
[INFO] [stdout]   | ----------------- previous import of the extern crate `pre` here
[INFO] [stdout] 3 | use pre::pre;
[INFO] [stdout]   |     ^^^^^^^^ `pre` reimported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `pre` must be defined only once in the type namespace of this module
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0254`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 394)
[INFO] [stdout]     src/lib.rs - (line 432)
[INFO] [stdout]     src/lib.rs - (line 63)
[INFO] [stdout]     src/lib.rs - assure (line 667)
[INFO] [stdout]     src/lib.rs - extern_crate (line 937)
[INFO] [stdout]     src/lib.rs - forward (line 741)
[INFO] [stdout]     src/lib.rs - forward (line 792)
[INFO] [stdout]     src/lib.rs - pre (line 600)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 8 failed; 54 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "6f973dcb806db1211cde32b35202dd825781c3f348da502685b46302045b3ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f973dcb806db1211cde32b35202dd825781c3f348da502685b46302045b3ac2", kill_on_drop: false }`
[INFO] [stdout] 6f973dcb806db1211cde32b35202dd825781c3f348da502685b46302045b3ac2