[INFO] cloning repository https://github.com/lgvier/rust-tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lgvier/rust-tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgvier%2Frust-tracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgvier%2Frust-tracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19ecdd90404d99444f40c0c744bc8808cd7d78e0
[INFO] checking lgvier/rust-tracer against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flgvier%2Frust-tracer" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lgvier/rust-tracer on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lgvier/rust-tracer
[INFO] finished tweaking git repo https://github.com/lgvier/rust-tracer
[INFO] tweaked toml for git repo https://github.com/lgvier/rust-tracer written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/lgvier/rust-tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c847ffd9d832cf969a9497100636fed6f8323355bf5dfd4dbe1eccabc516e4ef
[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" "c847ffd9d832cf969a9497100636fed6f8323355bf5dfd4dbe1eccabc516e4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c847ffd9d832cf969a9497100636fed6f8323355bf5dfd4dbe1eccabc516e4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c847ffd9d832cf969a9497100636fed6f8323355bf5dfd4dbe1eccabc516e4ef", kill_on_drop: false }`
[INFO] [stdout] c847ffd9d832cf969a9497100636fed6f8323355bf5dfd4dbe1eccabc516e4ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ef33bdb783cd200efbea7f7268a1a07c47a3dc54aa25f003131d7975c1e006f
[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" "9ef33bdb783cd200efbea7f7268a1a07c47a3dc54aa25f003131d7975c1e006f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking rust-tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.07s
[INFO] running `Command { std: "docker" "inspect" "9ef33bdb783cd200efbea7f7268a1a07c47a3dc54aa25f003131d7975c1e006f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ef33bdb783cd200efbea7f7268a1a07c47a3dc54aa25f003131d7975c1e006f", kill_on_drop: false }`
[INFO] [stdout] 9ef33bdb783cd200efbea7f7268a1a07c47a3dc54aa25f003131d7975c1e006f