[INFO] fetching crate hstrace_derive 0.0.1...
[INFO] checking hstrace_derive-0.0.1 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate hstrace_derive 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate hstrace_derive 0.0.1
[INFO] finished tweaking crates.io crate hstrace_derive 0.0.1
[INFO] tweaked toml for crates.io crate hstrace_derive 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hstrace_derive 0.0.1 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 106437b1c0b5a0e2cdae5dcc8090e1fa4f38a7c6b5a7b2cce1e4303dac4a4ec4
[INFO] running `Command { std: "docker" "start" "-a" "106437b1c0b5a0e2cdae5dcc8090e1fa4f38a7c6b5a7b2cce1e4303dac4a4ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "106437b1c0b5a0e2cdae5dcc8090e1fa4f38a7c6b5a7b2cce1e4303dac4a4ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106437b1c0b5a0e2cdae5dcc8090e1fa4f38a7c6b5a7b2cce1e4303dac4a4ec4", kill_on_drop: false }`
[INFO] [stdout] 106437b1c0b5a0e2cdae5dcc8090e1fa4f38a7c6b5a7b2cce1e4303dac4a4ec4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db9e93bba77d0662a02390736e46043f5d66253eab32ba4bb2c75fb987019798
[INFO] running `Command { std: "docker" "start" "-a" "db9e93bba77d0662a02390736e46043f5d66253eab32ba4bb2c75fb987019798", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking hstrace_derive v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:320:9
[INFO] [stdout]     |
[INFO] [stdout] 320 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `c_struct` is never read
[INFO] [stdout]    --> src/lib.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Fields<'a> {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 109 |     pub fields: Vec<&'a Field>,
[INFO] [stdout] 110 |     pub c_struct: Ident,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `c_struct` is never read
[INFO] [stdout]    --> src/lib.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Fields<'a> {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] 109 |     pub fields: Vec<&'a Field>,
[INFO] [stdout] 110 |     pub c_struct: Ident,
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "db9e93bba77d0662a02390736e46043f5d66253eab32ba4bb2c75fb987019798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db9e93bba77d0662a02390736e46043f5d66253eab32ba4bb2c75fb987019798", kill_on_drop: false }`
[INFO] [stdout] db9e93bba77d0662a02390736e46043f5d66253eab32ba4bb2c75fb987019798