[INFO] cloning repository https://github.com/boyleconnor/mergesort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boyleconnor/mergesort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboyleconnor%2Fmergesort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboyleconnor%2Fmergesort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68fb5e31800fad8bdaede5c407676072eda02c27
[INFO] building boyleconnor/mergesort against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboyleconnor%2Fmergesort" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boyleconnor/mergesort on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/boyleconnor/mergesort
[INFO] finished tweaking git repo https://github.com/boyleconnor/mergesort
[INFO] tweaked toml for git repo https://github.com/boyleconnor/mergesort written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/boyleconnor/mergesort 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-test v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88f73431e62a163294e761db825c1ef1debcefa1ea4ec9992d242905ab0ea45f
[INFO] running `Command { std: "docker" "start" "-a" "88f73431e62a163294e761db825c1ef1debcefa1ea4ec9992d242905ab0ea45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88f73431e62a163294e761db825c1ef1debcefa1ea4ec9992d242905ab0ea45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f73431e62a163294e761db825c1ef1debcefa1ea4ec9992d242905ab0ea45f", kill_on_drop: false }`
[INFO] [stdout] 88f73431e62a163294e761db825c1ef1debcefa1ea4ec9992d242905ab0ea45f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d13488d540eb232b8b0393c031e4896ab5fc0b1674aa91747333bfb904a428f6
[INFO] running `Command { std: "docker" "start" "-a" "d13488d540eb232b8b0393c031e4896ab5fc0b1674aa91747333bfb904a428f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rayon v1.8.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stderr]    Compiling futures v0.3.28
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.12s
[INFO] running `Command { std: "docker" "inspect" "d13488d540eb232b8b0393c031e4896ab5fc0b1674aa91747333bfb904a428f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13488d540eb232b8b0393c031e4896ab5fc0b1674aa91747333bfb904a428f6", kill_on_drop: false }`
[INFO] [stdout] d13488d540eb232b8b0393c031e4896ab5fc0b1674aa91747333bfb904a428f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43472869d43bdc6601ffc5b8a1563887912e47421c4f1a454324066d7e6ecaa2
[INFO] running `Command { std: "docker" "start" "-a" "43472869d43bdc6601ffc5b8a1563887912e47421c4f1a454324066d7e6ecaa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling async-stream v0.3.5
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling futures-executor v0.3.28
[INFO] [stderr]    Compiling futures v0.3.28
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling tokio-test v0.4.3
[INFO] [stderr]    Compiling untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.78s
[INFO] running `Command { std: "docker" "inspect" "43472869d43bdc6601ffc5b8a1563887912e47421c4f1a454324066d7e6ecaa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43472869d43bdc6601ffc5b8a1563887912e47421c4f1a454324066d7e6ecaa2", kill_on_drop: false }`
[INFO] [stdout] 43472869d43bdc6601ffc5b8a1563887912e47421c4f1a454324066d7e6ecaa2