[INFO] fetching crate tracers-core 0.1.0...
[INFO] testing tracers-core-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate tracers-core 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tracers-core 0.1.0
[INFO] finished tweaking crates.io crate tracers-core 0.1.0
[INFO] tweaked toml for crates.io crate tracers-core 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tracers-core 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding quickcheck v0.9.2 (available: v1.0.3)
[INFO] [stderr]       Adding quickcheck_macros v0.8.0 (available: v1.1.0)
[INFO] [stderr]       Adding strum v0.16.0 (available: v0.27.2)
[INFO] [stderr]       Adding strum_macros v0.16.0 (available: v0.27.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50f3e6e4acfe340016b77888cce8c6c6fd082fdea5b7bc374e8d42c22ab3ac82
[INFO] running `Command { std: "docker" "start" "-a" "50f3e6e4acfe340016b77888cce8c6c6fd082fdea5b7bc374e8d42c22ab3ac82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50f3e6e4acfe340016b77888cce8c6c6fd082fdea5b7bc374e8d42c22ab3ac82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f3e6e4acfe340016b77888cce8c6c6fd082fdea5b7bc374e8d42c22ab3ac82", kill_on_drop: false }`
[INFO] [stdout] 50f3e6e4acfe340016b77888cce8c6c6fd082fdea5b7bc374e8d42c22ab3ac82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7d44133c2ade5e7f073e064688877f4705f049cff6e52c390bf79c8bf90bb10
[INFO] running `Command { std: "docker" "start" "-a" "b7d44133c2ade5e7f073e064688877f4705f049cff6e52c390bf79c8bf90bb10", kill_on_drop: false }`
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling strum v0.16.0
[INFO] [stderr]    Compiling strum_macros v0.16.0
[INFO] [stderr]    Compiling backtrace v0.3.75
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling tracers-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unused import: `self::bool::*`
[INFO] [stdout]   --> src/argtypes.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub use self::bool::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout]  1 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `cstring::*`
[INFO] [stdout]   --> src/argtypes.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use cstring::*;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `int::*`
[INFO] [stdout]   --> src/argtypes.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub use int::*;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `native::*`
[INFO] [stdout]   --> src/argtypes.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub use native::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `option::*`
[INFO] [stdout]   --> src/argtypes.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub use option::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `pointer::*`
[INFO] [stdout]   --> src/argtypes.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub use pointer::*;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `refs::*`
[INFO] [stdout]   --> src/argtypes.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub use refs::*;
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `string::*`
[INFO] [stdout]   --> src/argtypes.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub use string::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tracers-core` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "b7d44133c2ade5e7f073e064688877f4705f049cff6e52c390bf79c8bf90bb10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d44133c2ade5e7f073e064688877f4705f049cff6e52c390bf79c8bf90bb10", kill_on_drop: false }`
[INFO] [stdout] b7d44133c2ade5e7f073e064688877f4705f049cff6e52c390bf79c8bf90bb10