[INFO] cloning repository https://github.com/peterallin/trace-foo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peterallin/trace-foo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterallin%2Ftrace-foo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterallin%2Ftrace-foo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eed0f56086f8d9719c1a207920f6beffbf19ba90
[INFO] testing peterallin/trace-foo against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterallin%2Ftrace-foo" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peterallin/trace-foo on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/peterallin/trace-foo
[INFO] finished tweaking git repo https://github.com/peterallin/trace-foo
[INFO] tweaked toml for git repo https://github.com/peterallin/trace-foo written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/peterallin/trace-foo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu v1.0.4
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded proc-macro2 v1.0.12
[INFO] [stderr]   Downloaded tracing v0.1.13
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded tracing-attributes v0.1.7
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded serde_json v1.0.52
[INFO] [stderr]   Downloaded tracing-log v0.1.1
[INFO] [stderr]   Downloaded tracing-serde v0.1.1
[INFO] [stderr]   Downloaded tracing-core v0.1.10
[INFO] [stderr]   Downloaded sharded-slab v0.0.9
[INFO] [stderr]   Downloaded smallvec v1.4.0
[INFO] [stderr]   Downloaded syn v1.0.19
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.5
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36d01b08c49683452782bbd07068e87a340ea782e27e1766f877bab13bb3fa8e
[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" "36d01b08c49683452782bbd07068e87a340ea782e27e1766f877bab13bb3fa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36d01b08c49683452782bbd07068e87a340ea782e27e1766f877bab13bb3fa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36d01b08c49683452782bbd07068e87a340ea782e27e1766f877bab13bb3fa8e", kill_on_drop: false }`
[INFO] [stdout] 36d01b08c49683452782bbd07068e87a340ea782e27e1766f877bab13bb3fa8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 46bed0409a1270ee411d36c4cf7c7b315dd7ed4a393da5e97ec60b106b0191f3
[INFO] running `Command { std: "docker" "start" "-a" "46bed0409a1270ee411d36c4cf7c7b315dd7ed4a393da5e97ec60b106b0191f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling sharded-slab v0.0.9
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling tracing-log v0.1.1
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling tracing-serde v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.52
[INFO] [stderr]    Compiling tracing-subscriber v0.2.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling tracing v0.1.13
[INFO] [stderr]    Compiling trace-foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `span`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tracing::{instrument, span, Level, event};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.20s
[INFO] running `Command { std: "docker" "inspect" "46bed0409a1270ee411d36c4cf7c7b315dd7ed4a393da5e97ec60b106b0191f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46bed0409a1270ee411d36c4cf7c7b315dd7ed4a393da5e97ec60b106b0191f3", kill_on_drop: false }`
[INFO] [stdout] 46bed0409a1270ee411d36c4cf7c7b315dd7ed4a393da5e97ec60b106b0191f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46ddf22f4c8af24840b79a04a245970d81d42067c686e792df9f386997b502e0
[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" "46ddf22f4c8af24840b79a04a245970d81d42067c686e792df9f386997b502e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling trace-foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `span`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tracing::{instrument, span, Level, event};
[INFO] [stdout]   |                           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "46ddf22f4c8af24840b79a04a245970d81d42067c686e792df9f386997b502e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ddf22f4c8af24840b79a04a245970d81d42067c686e792df9f386997b502e0", kill_on_drop: false }`
[INFO] [stdout] 46ddf22f4c8af24840b79a04a245970d81d42067c686e792df9f386997b502e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2523b67d2a521792d22f944de5066c04520cefa21fa05eacce48e443bdf19b81
[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" "2523b67d2a521792d22f944de5066c04520cefa21fa05eacce48e443bdf19b81", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `span`
[INFO] [stderr]  --> src/main.rs:1:27
[INFO] [stderr]   |
[INFO] [stderr] 1 | use tracing::{instrument, span, Level, event};
[INFO] [stderr]   |                           ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `trace-foo` (bin "trace-foo" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/trace_foo-2bde2b9b9664da55)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2523b67d2a521792d22f944de5066c04520cefa21fa05eacce48e443bdf19b81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2523b67d2a521792d22f944de5066c04520cefa21fa05eacce48e443bdf19b81", kill_on_drop: false }`
[INFO] [stdout] 2523b67d2a521792d22f944de5066c04520cefa21fa05eacce48e443bdf19b81