[INFO] cloning repository https://github.com/ubnt-intrepid/tweet-fs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ubnt-intrepid/tweet-fs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Ftweet-fs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Ftweet-fs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d696c9002ced7c6d12718011f9298bcd004c698
[INFO] checking ubnt-intrepid/tweet-fs against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubnt-intrepid%2Ftweet-fs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubnt-intrepid/tweet-fs on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ubnt-intrepid/tweet-fs
[INFO] finished tweaking git repo https://github.com/ubnt-intrepid/tweet-fs
[INFO] tweaked toml for git repo https://github.com/ubnt-intrepid/tweet-fs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ubnt-intrepid/tweet-fs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-uds v0.2.7
[INFO] [stderr]   Downloaded matchers v0.0.1
[INFO] [stderr]   Downloaded tokio-compat v0.1.6
[INFO] [stderr]   Downloaded stable_deref_trait v1.2.0
[INFO] [stderr]   Downloaded owning_ref v0.4.1
[INFO] [stderr]   Downloaded polyfuse v0.3.3
[INFO] [stderr]   Downloaded polyfuse-tokio v0.2.1
[INFO] [stderr]   Downloaded egg-mode v0.13.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.1.6
[INFO] [stderr]   Downloaded tracing-log v0.1.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] f24fd1e58b82a9b0dcb67e8950b2874e3db5ca2029c6e79956faaef56c6627d2
[INFO] running `Command { std: "docker" "start" "-a" "f24fd1e58b82a9b0dcb67e8950b2874e3db5ca2029c6e79956faaef56c6627d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f24fd1e58b82a9b0dcb67e8950b2874e3db5ca2029c6e79956faaef56c6627d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f24fd1e58b82a9b0dcb67e8950b2874e3db5ca2029c6e79956faaef56c6627d2", kill_on_drop: false }`
[INFO] [stdout] f24fd1e58b82a9b0dcb67e8950b2874e3db5ca2029c6e79956faaef56c6627d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1db242d6e066cbb0e0d03909410c646c34f7e7bee8a17ecdddda78fd525d7e4d
[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" "1db242d6e066cbb0e0d03909410c646c34f7e7bee8a17ecdddda78fd525d7e4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking tracing-core v0.1.15
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking tracing-subscriber v0.1.6
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking egg-mode v0.13.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking tokio-compat v0.1.6
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking polyfuse v0.3.3
[INFO] [stderr]     Checking polyfuse-tokio v0.2.1
[INFO] [stderr]     Checking tweet-fs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 49s
[INFO] running `Command { std: "docker" "inspect" "1db242d6e066cbb0e0d03909410c646c34f7e7bee8a17ecdddda78fd525d7e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1db242d6e066cbb0e0d03909410c646c34f7e7bee8a17ecdddda78fd525d7e4d", kill_on_drop: false }`
[INFO] [stdout] 1db242d6e066cbb0e0d03909410c646c34f7e7bee8a17ecdddda78fd525d7e4d