[INFO] fetching crate retry_fn 0.1.0...
[INFO] checking retry_fn-0.1.0 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate retry_fn 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate retry_fn 0.1.0 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate retry_fn 0.1.0
[INFO] finished tweaking crates.io crate retry_fn 0.1.0
[INFO] tweaked toml for crates.io crate retry_fn 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbc3f8165c62814a7a20ff0510062b8c9daeb52e5490c139230ecc03eeaf7fd6
[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" "cbc3f8165c62814a7a20ff0510062b8c9daeb52e5490c139230ecc03eeaf7fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbc3f8165c62814a7a20ff0510062b8c9daeb52e5490c139230ecc03eeaf7fd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbc3f8165c62814a7a20ff0510062b8c9daeb52e5490c139230ecc03eeaf7fd6", kill_on_drop: false }`
[INFO] [stdout] cbc3f8165c62814a7a20ff0510062b8c9daeb52e5490c139230ecc03eeaf7fd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c7b01aa1af36dbe5e1428f8d0759e6c72f5da60f52e114a336a5b9bfa8fed88
[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" "2c7b01aa1af36dbe5e1428f8d0759e6c72f5da60f52e114a336a5b9bfa8fed88", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking retry_fn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]    Compiling tokio v0.3.6
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]     Checking url v2.2.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking version-sync v0.9.1
[INFO] [stderr]    Compiling tokio-macros v0.3.2
[INFO] [stderr]     Checking tokio-test v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.91s
[INFO] running `Command { std: "docker" "inspect" "2c7b01aa1af36dbe5e1428f8d0759e6c72f5da60f52e114a336a5b9bfa8fed88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c7b01aa1af36dbe5e1428f8d0759e6c72f5da60f52e114a336a5b9bfa8fed88", kill_on_drop: false }`
[INFO] [stdout] 2c7b01aa1af36dbe5e1428f8d0759e6c72f5da60f52e114a336a5b9bfa8fed88