[INFO] crate slog-retry 0.1.1 is already in cache
[INFO] checking slog-retry-0.1.1 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate slog-retry 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate slog-retry 0.1.1 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-retry 0.1.1
[INFO] finished tweaking crates.io crate slog-retry 0.1.1
[INFO] tweaked toml for crates.io crate slog-retry 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b74b475a54b1352da8188f8c4a07ba00d6b62a627a302a66ad9f7609730fabac
[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" "b74b475a54b1352da8188f8c4a07ba00d6b62a627a302a66ad9f7609730fabac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b74b475a54b1352da8188f8c4a07ba00d6b62a627a302a66ad9f7609730fabac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b74b475a54b1352da8188f8c4a07ba00d6b62a627a302a66ad9f7609730fabac", kill_on_drop: false }`
[INFO] [stdout] b74b475a54b1352da8188f8c4a07ba00d6b62a627a302a66ad9f7609730fabac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "RUSTFLAGS=--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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c48976ec3af3aa9b228002b7db69a165cf52cbe97cbd3e7a8f296cb5b67fa6e
[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" "4c48976ec3af3aa9b228002b7db69a165cf52cbe97cbd3e7a8f296cb5b67fa6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking crossbeam-channel v0.4.3
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking version-sync v0.5.0
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking slog-retry v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:120:25
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub type Strategy = Box<Iterator<Item = Duration>>;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Duration>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub type NewStrategy = Box<Fn() -> Strategy + Send>;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Strategy + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:82:32
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stdout]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:120:25
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub type Strategy = Box<Iterator<Item = Duration>>;
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Duration>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:126:28
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub type NewStrategy = Box<Fn() -> Strategy + Send>;
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Strategy + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.28s
[INFO] running `Command { std: "docker" "inspect" "4c48976ec3af3aa9b228002b7db69a165cf52cbe97cbd3e7a8f296cb5b67fa6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c48976ec3af3aa9b228002b7db69a165cf52cbe97cbd3e7a8f296cb5b67fa6e", kill_on_drop: false }`
[INFO] [stdout] 4c48976ec3af3aa9b228002b7db69a165cf52cbe97cbd3e7a8f296cb5b67fa6e