[INFO] fetching crate tab-command 0.5.7...
[INFO] checking tab-command-0.5.7 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate tab-command 0.5.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tab-command 0.5.7 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tab-command 0.5.7
[INFO] finished tweaking crates.io crate tab-command 0.5.7
[INFO] tweaked toml for crates.io crate tab-command 0.5.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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] c75c896551a05dd9c399b3d6a06d5c91c05635e5417ebe0d2817b0ff6d53b6b0
[INFO] running `Command { std: "docker" "start" "-a" "c75c896551a05dd9c399b3d6a06d5c91c05635e5417ebe0d2817b0ff6d53b6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c75c896551a05dd9c399b3d6a06d5c91c05635e5417ebe0d2817b0ff6d53b6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75c896551a05dd9c399b3d6a06d5c91c05635e5417ebe0d2817b0ff6d53b6b0", kill_on_drop: false }`
[INFO] [stdout] c75c896551a05dd9c399b3d6a06d5c91c05635e5417ebe0d2817b0ff6d53b6b0
[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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] bc96fe24a9abe1217966ff6df2e571916243d3549ba083ba63b127330c7c48f0
[INFO] running `Command { std: "docker" "start" "-a" "bc96fe24a9abe1217966ff6df2e571916243d3549ba083ba63b127330c7c48f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking owned-alloc v0.2.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking arc-swap v0.4.8
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling sysinfo v0.15.9
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking lockfree v0.5.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking dirs v3.0.2
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking sha-1 v0.9.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking simplelog v0.9.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling typed-builder v0.8.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking snailquote v0.3.0
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking lifeline v0.4.0
[INFO] [stderr]     Checking async-tungstenite v0.8.0
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking tab-websocket v0.5.0
[INFO] [stderr]     Checking tab-api v0.5.6
[INFO] [stderr]     Checking tab-command v0.5.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "bc96fe24a9abe1217966ff6df2e571916243d3549ba083ba63b127330c7c48f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc96fe24a9abe1217966ff6df2e571916243d3549ba083ba63b127330c7c48f0", kill_on_drop: false }`
[INFO] [stdout] bc96fe24a9abe1217966ff6df2e571916243d3549ba083ba63b127330c7c48f0