[INFO] cloning repository https://github.com/vimcdoe/yield_now_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vimcdoe/yield_now_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimcdoe%2Fyield_now_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimcdoe%2Fyield_now_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec5c9da05443eae08f747d0704a51cf4de9d49aa
[INFO] checking vimcdoe/yield_now_test against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvimcdoe%2Fyield_now_test" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vimcdoe/yield_now_test on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vimcdoe/yield_now_test
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/vimcdoe/yield_now_test
[INFO] tweaked toml for git repo https://github.com/vimcdoe/yield_now_test written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/vimcdoe/yield_now_test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smol v1.2.4
[INFO] [stderr]   Downloaded vec-arena v1.0.0
[INFO] [stderr]   Downloaded fastrand v1.4.0
[INFO] [stderr]   Downloaded async-attributes v1.1.1
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[INFO] [stderr]   Downloaded async-global-executor v1.4.2
[INFO] [stderr]   Downloaded tokio v0.3.1
[INFO] [stderr]   Downloaded mio v0.7.4
[INFO] [stderr]   Downloaded async-io v1.1.10
[INFO] [stderr]   Downloaded ntapi v0.3.4
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] [stderr]   Downloaded polling v2.0.2
[INFO] [stderr]   Downloaded async-executor v1.3.0
[INFO] [stderr]   Downloaded tokio-macros v0.3.0
[INFO] [stderr]   Downloaded nb-connect v1.0.2
[INFO] [stderr]   Downloaded async-channel v1.5.1
[INFO] [stderr]   Downloaded instant v0.1.7
[INFO] [stderr]   Downloaded futures-lite v1.11.2
[INFO] [stderr]   Downloaded wepoll-sys v3.0.1
[INFO] [stderr]   Downloaded async-net v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e483b3b2fb98580f13900ceda719f9d54cb4e333ce73a7e8c89bd5362c9faf21
[INFO] running `Command { std: "docker" "start" "-a" "e483b3b2fb98580f13900ceda719f9d54cb4e333ce73a7e8c89bd5362c9faf21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e483b3b2fb98580f13900ceda719f9d54cb4e333ce73a7e8c89bd5362c9faf21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e483b3b2fb98580f13900ceda719f9d54cb4e333ce73a7e8c89bd5362c9faf21", kill_on_drop: false }`
[INFO] [stdout] e483b3b2fb98580f13900ceda719f9d54cb4e333ce73a7e8c89bd5362c9faf21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5abda9da907477e3ea7ab53c76cad0623a044d2de2098e51685fe916136000ea
[INFO] running `Command { std: "docker" "start" "-a" "5abda9da907477e3ea7ab53c76cad0623a044d2de2098e51685fe916136000ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking pin-project-lite v0.1.11
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[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling syn v1.0.46
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[INFO] [stderr]     Checking tokio v0.3.1
[INFO] [stderr]     Checking rtest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.76s
[INFO] running `Command { std: "docker" "inspect" "5abda9da907477e3ea7ab53c76cad0623a044d2de2098e51685fe916136000ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5abda9da907477e3ea7ab53c76cad0623a044d2de2098e51685fe916136000ea", kill_on_drop: false }`
[INFO] [stdout] 5abda9da907477e3ea7ab53c76cad0623a044d2de2098e51685fe916136000ea