[INFO] cloning repository https://github.com/comnik/timely-comms-bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/comnik/timely-comms-bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomnik%2Ftimely-comms-bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomnik%2Ftimely-comms-bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2728f5e193e9403402417664a9d92d0a9f36391
[INFO] checking comnik/timely-comms-bug against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcomnik%2Ftimely-comms-bug" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/comnik/timely-comms-bug on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/comnik/timely-comms-bug
[INFO] finished tweaking git repo https://github.com/comnik/timely-comms-bug
[INFO] tweaked toml for git repo https://github.com/comnik/timely-comms-bug written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/comnik/timely-comms-bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded abomonation_derive v0.3.0
[INFO] [stderr]   Downloaded abomonation_derive v0.4.0
[INFO] [stderr]   Downloaded timely_communication v0.10.0
[INFO] [stderr]   Downloaded timely_bytes v0.10.0
[INFO] [stderr]   Downloaded timely v0.10.0
[INFO] [stderr]   Downloaded timely_logging v0.10.0
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47924a9d0e057d8309b6b2554e6901e4961e8ae6703dc8d7beb3a3284e1ab083
[INFO] running `Command { std: "docker" "start" "-a" "47924a9d0e057d8309b6b2554e6901e4961e8ae6703dc8d7beb3a3284e1ab083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47924a9d0e057d8309b6b2554e6901e4961e8ae6703dc8d7beb3a3284e1ab083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47924a9d0e057d8309b6b2554e6901e4961e8ae6703dc8d7beb3a3284e1ab083", kill_on_drop: false }`
[INFO] [stdout] 47924a9d0e057d8309b6b2554e6901e4961e8ae6703dc8d7beb3a3284e1ab083
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08291e9d8375ffe6e269928a23180922966c4ebf7c0fe058edc61acbc07d0589
[INFO] running `Command { std: "docker" "start" "-a" "08291e9d8375ffe6e269928a23180922966c4ebf7c0fe058edc61acbc07d0589", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking timely_bytes v0.10.0
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]     Checking timely_logging v0.10.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking getopts v0.2.19
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling abomonation_derive v0.4.0
[INFO] [stderr]     Checking timely_communication v0.10.0
[INFO] [stderr]     Checking timely v0.10.0
[INFO] [stderr]     Checking timely-comms-bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.03s
[INFO] running `Command { std: "docker" "inspect" "08291e9d8375ffe6e269928a23180922966c4ebf7c0fe058edc61acbc07d0589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08291e9d8375ffe6e269928a23180922966c4ebf7c0fe058edc61acbc07d0589", kill_on_drop: false }`
[INFO] [stdout] 08291e9d8375ffe6e269928a23180922966c4ebf7c0fe058edc61acbc07d0589