[INFO] cloning repository https://github.com/rklaehn/vec-collections
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rklaehn/vec-collections" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fvec-collections", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fvec-collections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5288188f595b3e5bdca951c4640b9c7b668b7d0
[INFO] checking rklaehn/vec-collections against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fvec-collections" "/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/rklaehn/vec-collections on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rklaehn/vec-collections
[INFO] finished tweaking git repo https://github.com/rklaehn/vec-collections
[INFO] tweaked toml for git repo https://github.com/rklaehn/vec-collections written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rklaehn/vec-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sorted-iter v0.1.6
[INFO] [stderr]   Downloaded testdrop v0.1.2
[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" "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" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49f2c94809699e60bba897b801698b053725d6923d23877f61c7ebdeb6e3d571
[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" "49f2c94809699e60bba897b801698b053725d6923d23877f61c7ebdeb6e3d571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49f2c94809699e60bba897b801698b053725d6923d23877f61c7ebdeb6e3d571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f2c94809699e60bba897b801698b053725d6923d23877f61c7ebdeb6e3d571", kill_on_drop: false }`
[INFO] [stdout] 49f2c94809699e60bba897b801698b053725d6923d23877f61c7ebdeb6e3d571
[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" "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" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 985e9d8f51085342f99afb7db3400c1558cf330f871e4bf4ab8136aa207233ee
[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" "985e9d8f51085342f99afb7db3400c1558cf330f871e4bf4ab8136aa207233ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking sorted-iter v0.1.6
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking testdrop v0.1.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking vec-collections v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking clap v2.33.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking quickcheck v0.8.5
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/multimap.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let x: Multimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> examples/multimap.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let y: BiMultimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "985e9d8f51085342f99afb7db3400c1558cf330f871e4bf4ab8136aa207233ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "985e9d8f51085342f99afb7db3400c1558cf330f871e4bf4ab8136aa207233ee", kill_on_drop: false }`
[INFO] [stdout] 985e9d8f51085342f99afb7db3400c1558cf330f871e4bf4ab8136aa207233ee