[INFO] fetching crate must-implement-trait 0.1.0...
[INFO] building must-implement-trait-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate must-implement-trait 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate must-implement-trait 0.1.0
[INFO] finished tweaking crates.io crate must-implement-trait 0.1.0
[INFO] tweaked toml for crates.io crate must-implement-trait 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate must-implement-trait 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate must-implement-trait 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded async-trait v0.1.36
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.19
[INFO] [stderr]   Downloaded serde_derive v1.0.114
[INFO] [stderr]   Downloaded serde v1.0.114
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded trybuild v1.0.31
[INFO] [stderr]   Downloaded syn v1.0.36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cce5a8100df5e2e6c99cf4a4c090d0d0e9f68589d9c381498c850ae1f0c2f42
[INFO] running `Command { std: "docker" "start" "-a" "3cce5a8100df5e2e6c99cf4a4c090d0d0e9f68589d9c381498c850ae1f0c2f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cce5a8100df5e2e6c99cf4a4c090d0d0e9f68589d9c381498c850ae1f0c2f42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cce5a8100df5e2e6c99cf4a4c090d0d0e9f68589d9c381498c850ae1f0c2f42", kill_on_drop: false }`
[INFO] [stdout] 3cce5a8100df5e2e6c99cf4a4c090d0d0e9f68589d9c381498c850ae1f0c2f42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4692f7957f05623e9a93402945cf280be4246ac86d600f921cdd6fd4cff8b4b
[INFO] running `Command { std: "docker" "start" "-a" "d4692f7957f05623e9a93402945cf280be4246ac86d600f921cdd6fd4cff8b4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.27s
[INFO] running `Command { std: "docker" "inspect" "d4692f7957f05623e9a93402945cf280be4246ac86d600f921cdd6fd4cff8b4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4692f7957f05623e9a93402945cf280be4246ac86d600f921cdd6fd4cff8b4b", kill_on_drop: false }`
[INFO] [stdout] d4692f7957f05623e9a93402945cf280be4246ac86d600f921cdd6fd4cff8b4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 599d825f2107433d3eb7b45d0081592ba301ed233e5bec7d6a7c97416dd68c12
[INFO] running `Command { std: "docker" "start" "-a" "599d825f2107433d3eb7b45d0081592ba301ed233e5bec7d6a7c97416dd68c12", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling must-implement-trait v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling trybuild v1.0.31
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.98s
[INFO] running `Command { std: "docker" "inspect" "599d825f2107433d3eb7b45d0081592ba301ed233e5bec7d6a7c97416dd68c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "599d825f2107433d3eb7b45d0081592ba301ed233e5bec7d6a7c97416dd68c12", kill_on_drop: false }`
[INFO] [stdout] 599d825f2107433d3eb7b45d0081592ba301ed233e5bec7d6a7c97416dd68c12