[INFO] fetching crate oppgave 0.1.0...
[INFO] checking oppgave-0.1.0 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate oppgave 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate oppgave 0.1.0 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate oppgave 0.1.0
[INFO] finished tweaking crates.io crate oppgave 0.1.0
[INFO] tweaked toml for crates.io crate oppgave 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "/opt/rustwide/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07a2fbb5d757f158f7a873d8f8b79a49b9a2b97e9b7e116fc722a5ce634763ff
[INFO] running `"docker" "start" "-a" "07a2fbb5d757f158f7a873d8f8b79a49b9a2b97e9b7e116fc722a5ce634763ff"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking redis v0.5.4
[INFO] [stderr]     Checking oppgave v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:76:25
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 let s = try!(str::from_utf8(&v));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:77:20
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 Ok(try!(json::decode(&s).map_err(|_| (ErrorKind::TypeError, "JSON decode failed"))))
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 try!(Err((ErrorKind::TypeError, "Can only decode from a string")))
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:76:25
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 let s = try!(str::from_utf8(&v));
[INFO] [stderr]    |                         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:77:20
[INFO] [stderr]    |
[INFO] [stderr] 77 |                 Ok(try!(json::decode(&s).map_err(|_| (ErrorKind::TypeError, "JSON decode failed"))))
[INFO] [stderr]    |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |                 try!(Err((ErrorKind::TypeError, "Can only decode from a string")))
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.41s
[INFO] running `"docker" "inspect" "07a2fbb5d757f158f7a873d8f8b79a49b9a2b97e9b7e116fc722a5ce634763ff"`
[INFO] running `"docker" "rm" "-f" "07a2fbb5d757f158f7a873d8f8b79a49b9a2b97e9b7e116fc722a5ce634763ff"`
[INFO] [stdout] 07a2fbb5d757f158f7a873d8f8b79a49b9a2b97e9b7e116fc722a5ce634763ff