[INFO] fetching crate concorde 0.5.0...
[INFO] checking concorde-0.5.0 against beta for pr-78714
[INFO] extracting crate concorde 0.5.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate concorde 0.5.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concorde 0.5.0
[INFO] finished tweaking crates.io crate concorde 0.5.0
[INFO] tweaked toml for crates.io crate concorde 0.5.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9123ec2708daec9bf5f713111c353b2de1fd2fb379f8a729ad13b65bfbebc5af
[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" "9123ec2708daec9bf5f713111c353b2de1fd2fb379f8a729ad13b65bfbebc5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9123ec2708daec9bf5f713111c353b2de1fd2fb379f8a729ad13b65bfbebc5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9123ec2708daec9bf5f713111c353b2de1fd2fb379f8a729ad13b65bfbebc5af", kill_on_drop: false }`
[INFO] [stdout] 9123ec2708daec9bf5f713111c353b2de1fd2fb379f8a729ad13b65bfbebc5af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c008ab2eee9289e3356365f5ecb5ec420679fc35e14ff546feb4e1a51c7a0b5
[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" "8c008ab2eee9289e3356365f5ecb5ec420679fc35e14ff546feb4e1a51c7a0b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking id-set v0.2.2
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking miniz-sys v0.1.12
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling actix-web-codegen v0.1.3
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking actix-codec v0.1.2
[INFO] [stderr]     Checking actix-threadpool v0.1.2
[INFO] [stderr]     Checking actix-server-config v0.1.2
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]     Checking actix-utils v0.4.7
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking actix-rt v0.2.6
[INFO] [stderr]     Checking actix-server v0.6.1
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking actix-testing v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]     Checking sized-chunks v0.6.2
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking v_escape v0.7.4
[INFO] [stderr]     Checking actix-connect v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking actix-router v0.1.5
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking actix-http v0.2.11
[INFO] [stderr]     Checking pergola v0.8.1
[INFO] [stderr]     Checking concorde v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking awc v0.2.8
[INFO] [stderr]     Checking actix-web v1.0.9
[INFO] [stderr]     Checking actix-files v0.1.7
[INFO] [stderr]     Checking stateright v0.9.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.73s
[INFO] running `Command { std: "docker" "inspect" "8c008ab2eee9289e3356365f5ecb5ec420679fc35e14ff546feb4e1a51c7a0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c008ab2eee9289e3356365f5ecb5ec420679fc35e14ff546feb4e1a51c7a0b5", kill_on_drop: false }`
[INFO] [stdout] 8c008ab2eee9289e3356365f5ecb5ec420679fc35e14ff546feb4e1a51c7a0b5