[INFO] cloning repository https://github.com/Melvie/wthrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Melvie/wthrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelvie%2Fwthrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelvie%2Fwthrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd7462e766268fefea32605cdacd71c71d2193c1
[INFO] checking Melvie/wthrs against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelvie%2Fwthrs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Melvie/wthrs on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Melvie/wthrs
[INFO] finished tweaking git repo https://github.com/Melvie/wthrs
[INFO] tweaked toml for git repo https://github.com/Melvie/wthrs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Melvie/wthrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a49e59c14b2aebc4a156a3c5ee13e5df1c545eee80d392811d4dbbcc9d5d136a
[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" "a49e59c14b2aebc4a156a3c5ee13e5df1c545eee80d392811d4dbbcc9d5d136a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a49e59c14b2aebc4a156a3c5ee13e5df1c545eee80d392811d4dbbcc9d5d136a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a49e59c14b2aebc4a156a3c5ee13e5df1c545eee80d392811d4dbbcc9d5d136a", kill_on_drop: false }`
[INFO] [stdout] a49e59c14b2aebc4a156a3c5ee13e5df1c545eee80d392811d4dbbcc9d5d136a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68e48eb8f946cbbba907cf307e5cb694dedf44955de3130e91f4b53b958cfd33
[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" "68e48eb8f946cbbba907cf307e5cb694dedf44955de3130e91f4b53b958cfd33", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking confy v0.4.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking wthrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `Command { std: "docker" "inspect" "68e48eb8f946cbbba907cf307e5cb694dedf44955de3130e91f4b53b958cfd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e48eb8f946cbbba907cf307e5cb694dedf44955de3130e91f4b53b958cfd33", kill_on_drop: false }`
[INFO] [stdout] 68e48eb8f946cbbba907cf307e5cb694dedf44955de3130e91f4b53b958cfd33