[INFO] fetching crate backtrace 0.3.54...
[INFO] checking backtrace-0.3.54 against master#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073
[INFO] extracting crate backtrace 0.3.54 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate backtrace 0.3.54 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate backtrace 0.3.54
[INFO] removed 0 missing examples
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate backtrace 0.3.54
[INFO] tweaked toml for crates.io crate backtrace 0.3.54 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate backtrace 0.3.54 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf6f2ca139bdd49bc7bb1ccadca6699a190e9d79a9893d5e688e9a1626870af9
[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" "bf6f2ca139bdd49bc7bb1ccadca6699a190e9d79a9893d5e688e9a1626870af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf6f2ca139bdd49bc7bb1ccadca6699a190e9d79a9893d5e688e9a1626870af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf6f2ca139bdd49bc7bb1ccadca6699a190e9d79a9893d5e688e9a1626870af9", kill_on_drop: false }`
[INFO] [stdout] bf6f2ca139bdd49bc7bb1ccadca6699a190e9d79a9893d5e688e9a1626870af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63d60e8696507015d93b5f44ee808ae6544c879720f48cc979344a7cabbfb012
[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" "63d60e8696507015d93b5f44ee808ae6544c879720f48cc979344a7cabbfb012", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking libloading v0.6.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking backtrace v0.3.54 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hidden lifetime parameters in types are deprecated
[INFO] [stdout]    --> src/symbolize/gimli/elf.rs:164:68
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub(super) fn search_object_map(&self, _addr: u64) -> Option<(&Context, u64)> {
[INFO] [stdout]     |                                                                    ^^^^^^^- help: indicate the anonymous lifetime: `<'_>`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:51:9
[INFO] [stdout]     |
[INFO] [stdout] 51  | #![warn(rust_2018_idioms)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(elided_lifetimes_in_paths)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hidden lifetime parameters in types are deprecated
[INFO] [stdout]    --> src/symbolize/gimli/elf.rs:164:68
[INFO] [stdout]     |
[INFO] [stdout] 164 |     pub(super) fn search_object_map(&self, _addr: u64) -> Option<(&Context, u64)> {
[INFO] [stdout]     |                                                                    ^^^^^^^- help: indicate the anonymous lifetime: `<'_>`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:51:9
[INFO] [stdout]     |
[INFO] [stdout] 51  | #![warn(rust_2018_idioms)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[warn(elided_lifetimes_in_paths)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.38s
[INFO] running `Command { std: "docker" "inspect" "63d60e8696507015d93b5f44ee808ae6544c879720f48cc979344a7cabbfb012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d60e8696507015d93b5f44ee808ae6544c879720f48cc979344a7cabbfb012", kill_on_drop: false }`
[INFO] [stdout] 63d60e8696507015d93b5f44ee808ae6544c879720f48cc979344a7cabbfb012