[INFO] cloning repository https://github.com/mockersf/my-slack-resource
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mockersf/my-slack-resource" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fmy-slack-resource", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fmy-slack-resource'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b65e9aa75b3530ac2115564dc4d5b4db38e1900f
[INFO] checking mockersf/my-slack-resource against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmockersf%2Fmy-slack-resource" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mockersf/my-slack-resource on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mockersf/my-slack-resource
[INFO] finished tweaking git repo https://github.com/mockersf/my-slack-resource
[INFO] tweaked toml for git repo https://github.com/mockersf/my-slack-resource written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/mockersf/my-slack-resource already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 040f4fa85ca2437d66d03683c4f726f2c09b117129bc4efac5677214d22e3ef6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "040f4fa85ca2437d66d03683c4f726f2c09b117129bc4efac5677214d22e3ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "040f4fa85ca2437d66d03683c4f726f2c09b117129bc4efac5677214d22e3ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "040f4fa85ca2437d66d03683c4f726f2c09b117129bc4efac5677214d22e3ef6", kill_on_drop: false }`
[INFO] [stdout] 040f4fa85ca2437d66d03683c4f726f2c09b117129bc4efac5677214d22e3ef6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 401fc0449df773a0502aeb2a4b46955637c0cbb912f53257c3a15275eff5bfe1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "401fc0449df773a0502aeb2a4b46955637c0cbb912f53257c3a15275eff5bfe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking encoding_rs v0.8.17
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking h2 v0.2.2
[INFO] [stderr]    Compiling concourse-resource-derive v0.1.0
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]     Checking pin-project v0.4.6
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking hyper-tls v0.4.0
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking slack_push v0.1.0 (https://github.com/mockersf/slack-push#3f70bcda)
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking concourse-resource v0.2.0
[INFO] [stderr]     Checking concourse-slack-notifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "401fc0449df773a0502aeb2a4b46955637c0cbb912f53257c3a15275eff5bfe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "401fc0449df773a0502aeb2a4b46955637c0cbb912f53257c3a15275eff5bfe1", kill_on_drop: false }`
[INFO] [stdout] 401fc0449df773a0502aeb2a4b46955637c0cbb912f53257c3a15275eff5bfe1