[INFO] fetching crate env-io 0.0.1...
[INFO] testing env-io-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate env-io 0.0.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate env-io 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate env-io 0.0.1
[INFO] finished tweaking crates.io crate env-io 0.0.1
[INFO] tweaked toml for crates.io crate env-io 0.0.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6868933cc12efdb8bcba578a3c3954b845c082ec9f26c0b0b054100282598987
[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" "6868933cc12efdb8bcba578a3c3954b845c082ec9f26c0b0b054100282598987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6868933cc12efdb8bcba578a3c3954b845c082ec9f26c0b0b054100282598987", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6868933cc12efdb8bcba578a3c3954b845c082ec9f26c0b0b054100282598987", kill_on_drop: false }`
[INFO] [stdout] 6868933cc12efdb8bcba578a3c3954b845c082ec9f26c0b0b054100282598987
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] c08a5bf64f7187384578f3ae816307556fe25b19fa9a0e367a69260188d28347
[INFO] running `Command { std: "docker" "start" "-a" "c08a5bf64f7187384578f3ae816307556fe25b19fa9a0e367a69260188d28347", kill_on_drop: false }`
[INFO] [stderr]    Compiling env-io v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "c08a5bf64f7187384578f3ae816307556fe25b19fa9a0e367a69260188d28347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c08a5bf64f7187384578f3ae816307556fe25b19fa9a0e367a69260188d28347", kill_on_drop: false }`
[INFO] [stdout] c08a5bf64f7187384578f3ae816307556fe25b19fa9a0e367a69260188d28347
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76aa0df1c49de8df63f0a2a1f43f417cb09dfaf409ed249d5031570cfce7044e
[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" "76aa0df1c49de8df63f0a2a1f43f417cb09dfaf409ed249d5031570cfce7044e", kill_on_drop: false }`
[INFO] [stderr]    Compiling env-io v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "76aa0df1c49de8df63f0a2a1f43f417cb09dfaf409ed249d5031570cfce7044e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76aa0df1c49de8df63f0a2a1f43f417cb09dfaf409ed249d5031570cfce7044e", kill_on_drop: false }`
[INFO] [stdout] 76aa0df1c49de8df63f0a2a1f43f417cb09dfaf409ed249d5031570cfce7044e
[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=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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", 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] 612d2d30d7ed1c1825960749f5ab0ffbcf88a2207a2e22f9cea9bc6904fe4ef5
[INFO] running `Command { std: "docker" "start" "-a" "612d2d30d7ed1c1825960749f5ab0ffbcf88a2207a2e22f9cea9bc6904fe4ef5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/env_io-04553865c578de2b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests env-io
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "612d2d30d7ed1c1825960749f5ab0ffbcf88a2207a2e22f9cea9bc6904fe4ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "612d2d30d7ed1c1825960749f5ab0ffbcf88a2207a2e22f9cea9bc6904fe4ef5", kill_on_drop: false }`
[INFO] [stdout] 612d2d30d7ed1c1825960749f5ab0ffbcf88a2207a2e22f9cea9bc6904fe4ef5