[INFO] cloning repository https://github.com/zdcthomas/dmux
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zdcthomas/dmux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdcthomas%2Fdmux", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdcthomas%2Fdmux'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7cf1a43c2e7b50c43ec9b558ae709ede687b7c4
[INFO] checking zdcthomas/dmux against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzdcthomas%2Fdmux" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zdcthomas/dmux on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zdcthomas/dmux
[INFO] finished tweaking git repo https://github.com/zdcthomas/dmux
[INFO] tweaked toml for git repo https://github.com/zdcthomas/dmux written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/zdcthomas/dmux already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded grep-cli v0.1.4
[INFO] [stderr]   Downloaded tmux_interface v0.0.6
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 70495a2896f84c70d19f714f19eef59a86e81f480cd8713167460b97b95e106f
[INFO] running `Command { std: "docker" "start" "-a" "70495a2896f84c70d19f714f19eef59a86e81f480cd8713167460b97b95e106f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70495a2896f84c70d19f714f19eef59a86e81f480cd8713167460b97b95e106f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70495a2896f84c70d19f714f19eef59a86e81f480cd8713167460b97b95e106f", kill_on_drop: false }`
[INFO] [stdout] 70495a2896f84c70d19f714f19eef59a86e81f480cd8713167460b97b95e106f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aeffb5bdcf58af362a34e4305b72d528f6b85b6014b2f430012825b4df8bb234
[INFO] running `Command { std: "docker" "start" "-a" "aeffb5bdcf58af362a34e4305b72d528f6b85b6014b2f430012825b4df8bb234", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking tmux_interface v0.0.6
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking anyhow v1.0.32
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking globset v0.4.5
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking grep-cli v0.1.4
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking config v0.10.1
[INFO] [stderr]     Checking dmux v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.95s
[INFO] running `Command { std: "docker" "inspect" "aeffb5bdcf58af362a34e4305b72d528f6b85b6014b2f430012825b4df8bb234", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeffb5bdcf58af362a34e4305b72d528f6b85b6014b2f430012825b4df8bb234", kill_on_drop: false }`
[INFO] [stdout] aeffb5bdcf58af362a34e4305b72d528f6b85b6014b2f430012825b4df8bb234