[INFO] fetching crate bumper 0.5.0...
[INFO] building bumper-0.5.0 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate bumper 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bumper 0.5.0 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bumper 0.5.0
[INFO] finished tweaking crates.io crate bumper 0.5.0
[INFO] tweaked toml for crates.io crate bumper 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bumper 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pandoc v0.8.4
[INFO] [stderr]   Downloaded pandoc_ast v0.8.0
[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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3a2d3057f6d4e007a6cc45f0d7ac0ea3f119f993c06882ef60582ac77d18d7e
[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" "a3a2d3057f6d4e007a6cc45f0d7ac0ea3f119f993c06882ef60582ac77d18d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3a2d3057f6d4e007a6cc45f0d7ac0ea3f119f993c06882ef60582ac77d18d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a2d3057f6d4e007a6cc45f0d7ac0ea3f119f993c06882ef60582ac77d18d7e", kill_on_drop: false }`
[INFO] [stdout] a3a2d3057f6d4e007a6cc45f0d7ac0ea3f119f993c06882ef60582ac77d18d7e
[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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f55c1424941ae1db280682bd1c8f055f242d9bc22bfcfb1588a3e0c4aec3df0
[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" "2f55c1424941ae1db280682bd1c8f055f242d9bc22bfcfb1588a3e0c4aec3df0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling http v0.2.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling idna v0.2.2
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling subprocess v0.2.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling pandoc v0.8.4
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling env_proxy v0.4.1
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.21
[INFO] [stderr]    Compiling libgit2-sys v0.12.18+1.1.0
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling regex v1.4.5
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling toml_edit v0.2.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling git2 v0.13.17
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling pin-project v1.0.6
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.11.4
[INFO] [stderr]    Compiling pandoc_ast v0.8.0
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling cargo-edit v0.7.0
[INFO] [stderr]    Compiling bumper v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 30s
[INFO] running `Command { std: "docker" "inspect" "2f55c1424941ae1db280682bd1c8f055f242d9bc22bfcfb1588a3e0c4aec3df0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f55c1424941ae1db280682bd1c8f055f242d9bc22bfcfb1588a3e0c4aec3df0", kill_on_drop: false }`
[INFO] [stdout] 2f55c1424941ae1db280682bd1c8f055f242d9bc22bfcfb1588a3e0c4aec3df0
[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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75e7665dc1669474599d716c2781b7f0ae2fdbdbf5b18fff0b6ff07c7e2dad74
[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" "75e7665dc1669474599d716c2781b7f0ae2fdbdbf5b18fff0b6ff07c7e2dad74", kill_on_drop: false }`
[INFO] [stderr]    Compiling bumper v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "75e7665dc1669474599d716c2781b7f0ae2fdbdbf5b18fff0b6ff07c7e2dad74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75e7665dc1669474599d716c2781b7f0ae2fdbdbf5b18fff0b6ff07c7e2dad74", kill_on_drop: false }`
[INFO] [stdout] 75e7665dc1669474599d716c2781b7f0ae2fdbdbf5b18fff0b6ff07c7e2dad74