[INFO] fetching crate symbolic-sourcemap 7.4.0...
[INFO] checking symbolic-sourcemap-7.4.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate symbolic-sourcemap 7.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate symbolic-sourcemap 7.4.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolic-sourcemap 7.4.0
[INFO] finished tweaking crates.io crate symbolic-sourcemap 7.4.0
[INFO] tweaked toml for crates.io crate symbolic-sourcemap 7.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51a2676a2ea29f382918fd5245026bbbd7df9c8200f2c1d4682632c15b28d624
[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" "51a2676a2ea29f382918fd5245026bbbd7df9c8200f2c1d4682632c15b28d624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51a2676a2ea29f382918fd5245026bbbd7df9c8200f2c1d4682632c15b28d624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51a2676a2ea29f382918fd5245026bbbd7df9c8200f2c1d4682632c15b28d624", kill_on_drop: false }`
[INFO] [stdout] 51a2676a2ea29f382918fd5245026bbbd7df9c8200f2c1d4682632c15b28d624
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a9376b1ba246c6f4d1b84cab22284ca16c2336e9a33baafdaec3025d7e96156
[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" "2a9376b1ba246c6f4d1b84cab22284ca16c2336e9a33baafdaec3025d7e96156", kill_on_drop: false }`
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking if_chain v0.1.3
[INFO] [stderr]     Checking libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking sourcemap v5.0.0
[INFO] [stderr]     Checking symbolic-sourcemap v7.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.17s
[INFO] running `Command { std: "docker" "inspect" "2a9376b1ba246c6f4d1b84cab22284ca16c2336e9a33baafdaec3025d7e96156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a9376b1ba246c6f4d1b84cab22284ca16c2336e9a33baafdaec3025d7e96156", kill_on_drop: false }`
[INFO] [stdout] 2a9376b1ba246c6f4d1b84cab22284ca16c2336e9a33baafdaec3025d7e96156