[INFO] fetching crate jen 1.1.0...
[INFO] checking jen-1.1.0 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate jen 1.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jen 1.1.0 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jen 1.1.0
[INFO] finished tweaking crates.io crate jen 1.1.0
[INFO] tweaked toml for crates.io crate jen 1.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate jen 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3f4dc577508d071b23f84500504fbf29773865f1e1d68ba32a427f3a7ac831e
[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" "d3f4dc577508d071b23f84500504fbf29773865f1e1d68ba32a427f3a7ac831e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f4dc577508d071b23f84500504fbf29773865f1e1d68ba32a427f3a7ac831e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f4dc577508d071b23f84500504fbf29773865f1e1d68ba32a427f3a7ac831e", kill_on_drop: false }`
[INFO] [stdout] d3f4dc577508d071b23f84500504fbf29773865f1e1d68ba32a427f3a7ac831e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b45a9d6188d18ca3705779a3690994d98a0b248b3647eac6525fdf24c46ed4bb
[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" "b45a9d6188d18ca3705779a3690994d98a0b248b3647eac6525fdf24c46ed4bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking fake v1.3.0
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking ignore v0.4.17
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking objectid v0.2.0
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking tera v1.7.0
[INFO] [stderr]     Checking jen v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.34s
[INFO] running `Command { std: "docker" "inspect" "b45a9d6188d18ca3705779a3690994d98a0b248b3647eac6525fdf24c46ed4bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45a9d6188d18ca3705779a3690994d98a0b248b3647eac6525fdf24c46ed4bb", kill_on_drop: false }`
[INFO] [stdout] b45a9d6188d18ca3705779a3690994d98a0b248b3647eac6525fdf24c46ed4bb