[INFO] cloning repository https://github.com/polyverse/rmesg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/polyverse/rmesg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolyverse%2Frmesg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolyverse%2Frmesg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8f288775eacb9e9cb0c8736bbfe98b5e24f347c
[INFO] checking polyverse/rmesg against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolyverse%2Frmesg" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/polyverse/rmesg 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 git repo https://github.com/polyverse/rmesg
[INFO] finished tweaking git repo https://github.com/polyverse/rmesg
[INFO] tweaked toml for git repo https://github.com/polyverse/rmesg written to /workspace/builds/worker-4/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum-display-derive v0.1.0
[INFO] [stderr]   Downloaded nonblock v0.1.0
[INFO] [stderr]   Downloaded strum v0.20.0
[INFO] [stderr]   Downloaded strum_macros v0.20.1
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8dc50653fc5f9cdef6b8ef617d5f0694eda132876885d964305dfda6fa9c2dc0
[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" "8dc50653fc5f9cdef6b8ef617d5f0694eda132876885d964305dfda6fa9c2dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8dc50653fc5f9cdef6b8ef617d5f0694eda132876885d964305dfda6fa9c2dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc50653fc5f9cdef6b8ef617d5f0694eda132876885d964305dfda6fa9c2dc0", kill_on_drop: false }`
[INFO] [stdout] 8dc50653fc5f9cdef6b8ef617d5f0694eda132876885d964305dfda6fa9c2dc0
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49e8ccda6c899219d96fa517e1476152ca56545a331844a30fd01fe27118e9e1
[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" "49e8ccda6c899219d96fa517e1476152ca56545a331844a30fd01fe27118e9e1", 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] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-core v0.3.11
[INFO] [stderr]     Checking futures-sink v0.3.11
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-io v0.3.11
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling tokio v1.0.2
[INFO] [stderr]     Checking futures-channel v0.3.11
[INFO] [stderr]     Checking thread_local v1.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking futures-task v0.3.11
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]     Checking libc v0.2.82
[INFO] [stderr]     Checking proc-macro-nested v0.1.7
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking nonblock v0.1.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]    Compiling enum-display-derive v0.1.0
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]    Compiling futures-macro v0.3.11
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.4
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking futures-util v0.3.11
[INFO] [stderr]     Checking pin-project v1.0.4
[INFO] [stderr]     Checking tokio-stream v0.1.2
[INFO] [stderr]     Checking futures-executor v0.3.11
[INFO] [stderr]     Checking futures v0.3.11
[INFO] [stderr]     Checking rmesg v1.0.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 48s
[INFO] running `Command { std: "docker" "inspect" "49e8ccda6c899219d96fa517e1476152ca56545a331844a30fd01fe27118e9e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e8ccda6c899219d96fa517e1476152ca56545a331844a30fd01fe27118e9e1", kill_on_drop: false }`
[INFO] [stdout] 49e8ccda6c899219d96fa517e1476152ca56545a331844a30fd01fe27118e9e1