[INFO] fetching crate yttrium_std_selfdelete 0.1.0...
[INFO] checking yttrium_std_selfdelete-0.1.0 against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] extracting crate yttrium_std_selfdelete 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate yttrium_std_selfdelete 0.1.0 on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yttrium_std_selfdelete 0.1.0
[INFO] finished tweaking crates.io crate yttrium_std_selfdelete 0.1.0
[INFO] tweaked toml for crates.io crate yttrium_std_selfdelete 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "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] 96718f0d2c1db9f738a9fbb570e0d9dc0a18dfcc0d0d28ae803ac759032047ea
[INFO] running `Command { std: "docker" "start" "-a" "96718f0d2c1db9f738a9fbb570e0d9dc0a18dfcc0d0d28ae803ac759032047ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96718f0d2c1db9f738a9fbb570e0d9dc0a18dfcc0d0d28ae803ac759032047ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96718f0d2c1db9f738a9fbb570e0d9dc0a18dfcc0d0d28ae803ac759032047ea", kill_on_drop: false }`
[INFO] [stdout] 96718f0d2c1db9f738a9fbb570e0d9dc0a18dfcc0d0d28ae803ac759032047ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6d82845f1e9cc2f7014021f6727d2d608e8d742302f439355847d54e3c9f50e
[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" "d6d82845f1e9cc2f7014021f6727d2d608e8d742302f439355847d54e3c9f50e", kill_on_drop: false }`
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling async-trait v0.1.49
[INFO] [stderr]    Compiling serenity v0.9.4
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling command_attr v0.3.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking async-tungstenite v0.9.3
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-rustls v0.21.0
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking yttrium_key_base v0.1.0
[INFO] [stderr]     Checking yttrium_std_selfdelete v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "d6d82845f1e9cc2f7014021f6727d2d608e8d742302f439355847d54e3c9f50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d82845f1e9cc2f7014021f6727d2d608e8d742302f439355847d54e3c9f50e", kill_on_drop: false }`
[INFO] [stdout] d6d82845f1e9cc2f7014021f6727d2d608e8d742302f439355847d54e3c9f50e