[INFO] updating cached repository https://github.com/CanonicalLtd/ceph_safe_disk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a248d34715bfd7772032780a94121182606347d
[INFO] documenting CanonicalLtd/ceph_safe_disk against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCanonicalLtd%2Fceph_safe_disk" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CanonicalLtd/ceph_safe_disk on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CanonicalLtd/ceph_safe_disk
[INFO] finished tweaking git repo https://github.com/CanonicalLtd/ceph_safe_disk
[INFO] tweaked toml for git repo https://github.com/CanonicalLtd/ceph_safe_disk written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/CanonicalLtd/ceph_safe_disk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfe5a38b6b841e6b054e205a4ed8320b4a445cc164b5b51581861b5e64d2c732
[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" "dfe5a38b6b841e6b054e205a4ed8320b4a445cc164b5b51581861b5e64d2c732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfe5a38b6b841e6b054e205a4ed8320b4a445cc164b5b51581861b5e64d2c732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe5a38b6b841e6b054e205a4ed8320b4a445cc164b5b51581861b5e64d2c732", kill_on_drop: false }`
[INFO] [stdout] dfe5a38b6b841e6b054e205a4ed8320b4a445cc164b5b51581861b5e64d2c732
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 423387c449483a8a8545f2fc13bbc60c3f088e8826d22b6f7ba767e9b899aed2
[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" "423387c449483a8a8545f2fc13bbc60c3f088e8826d22b6f7ba767e9b899aed2", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking users v0.5.3
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v0.9.10
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]     Checking ceph-safe-disk v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ceph-safe-disk v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> lib/from.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let mut file = try!(File::open(path));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> lib/from.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         try!(file.read_to_string(&mut buffer));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> lib/from.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |         Ok(try!(serde_json::from_str(&buffer)))
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> lib/from.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Ok(try!(serde_json::from_str(&try!(call_ceph(cmd)))))
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]   --> lib/from.rs:36:39
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Ok(try!(serde_json::from_str(&try!(call_ceph(cmd)))))
[INFO] [stdout]    |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> lib/diag.rs:182:21
[INFO] [stdout]     |
[INFO] [stdout] 182 |             pg_map: try!(PGMap::from_ceph("pg dump")),
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> lib/diag.rs:183:22
[INFO] [stdout]     |
[INFO] [stdout] 183 |             osd_map: try!(OsdMap::from_ceph("osd dump")),
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]  --> lib/exec.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let ceph = try!(Command::new("/usr/bin/env")
[INFO] [stdout]   |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> lib/diag.rs:231:32
[INFO] [stdout]     |
[INFO] [stdout] 231 |             } else if let Some(mut osd) = cluster_diag.osd_diags.iter_mut().find(|ref osd| osd.osd_id == pg.osd_id) {
[INFO] [stdout]     |                                ----^^^
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.82s
[INFO] running `Command { std: "docker" "inspect" "423387c449483a8a8545f2fc13bbc60c3f088e8826d22b6f7ba767e9b899aed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423387c449483a8a8545f2fc13bbc60c3f088e8826d22b6f7ba767e9b899aed2", kill_on_drop: false }`
[INFO] [stdout] 423387c449483a8a8545f2fc13bbc60c3f088e8826d22b6f7ba767e9b899aed2