[INFO] fetching crate mnt 0.3.1...
[INFO] checking mnt-0.3.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate mnt 0.3.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mnt 0.3.1 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mnt 0.3.1
[INFO] finished tweaking crates.io crate mnt 0.3.1
[INFO] tweaked toml for crates.io crate mnt 0.3.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7df48cfe59c89ee3050d13fcea624547659e5cd368df45d34ff0a0b5784e58b
[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" "e7df48cfe59c89ee3050d13fcea624547659e5cd368df45d34ff0a0b5784e58b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7df48cfe59c89ee3050d13fcea624547659e5cd368df45d34ff0a0b5784e58b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7df48cfe59c89ee3050d13fcea624547659e5cd368df45d34ff0a0b5784e58b", kill_on_drop: false }`
[INFO] [stdout] e7df48cfe59c89ee3050d13fcea624547659e5cd368df45d34ff0a0b5784e58b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69570d99303e552dfc445adcad0ffeff0cbddcf03f77b081637f9e25d3321d27
[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" "69570d99303e552dfc445adcad0ffeff0cbddcf03f77b081637f9e25d3321d27", kill_on_drop: false }`
[INFO] [stderr]     Checking mnt v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:116:19
[INFO] [stdout]     |
[INFO] [stdout] 116 |             spec: try!(tokens.next().ok_or(LineError::MissingSpec)).to_string(),
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:118:28
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 let file = try!(tokens.next().ok_or(LineError::MissingFile));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             vfstype: try!(tokens.next().ok_or(LineError::MissingVfstype)).to_string(),
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |             mntops: try!(tokens.next().ok_or(LineError::MissingMntops))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:130:28
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 let freq = try!(tokens.next().ok_or(LineError::MissingFreq));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:138:30
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let passno = try!(tokens.next().ok_or(LineError::MissingPassno));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:167:30
[INFO] [stdout]     |
[INFO] [stdout] 167 |     get_submounts_from(root, try!(MountIter::new_from_proc()))
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:188:28
[INFO] [stdout]     |
[INFO] [stdout] 188 |     get_mount_from(target, try!(MountIter::new_from_proc()))
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let file = try!(File::open(PROC_MOUNTS));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:116:19
[INFO] [stdout]     |
[INFO] [stdout] 116 |             spec: try!(tokens.next().ok_or(LineError::MissingSpec)).to_string(),
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:118:28
[INFO] [stdout]     |
[INFO] [stdout] 118 |                 let file = try!(tokens.next().ok_or(LineError::MissingFile));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:125:22
[INFO] [stdout]     |
[INFO] [stdout] 125 |             vfstype: try!(tokens.next().ok_or(LineError::MissingVfstype)).to_string(),
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |             mntops: try!(tokens.next().ok_or(LineError::MissingMntops))
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:130:28
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 let freq = try!(tokens.next().ok_or(LineError::MissingFreq));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:138:30
[INFO] [stdout]     |
[INFO] [stdout] 138 |                 let passno = try!(tokens.next().ok_or(LineError::MissingPassno));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:167:30
[INFO] [stdout]     |
[INFO] [stdout] 167 |     get_submounts_from(root, try!(MountIter::new_from_proc()))
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:188:28
[INFO] [stdout]     |
[INFO] [stdout] 188 |     get_mount_from(target, try!(MountIter::new_from_proc()))
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/parse.rs:277:20
[INFO] [stdout]     |
[INFO] [stdout] 277 |         let file = try!(File::open(PROC_MOUNTS));
[INFO] [stdout]     |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse.rs:452:79
[INFO] [stdout]     |
[INFO] [stdout] 452 |         let mut mounts = MountIter::new(buf.clone()).map(|m| m.ok().unwrap());;
[INFO] [stdout]     |                                                                               ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse.rs:456:79
[INFO] [stdout]     |
[INFO] [stdout] 456 |         let mut mounts = MountIter::new(buf.clone()).map(|m| m.ok().unwrap());;
[INFO] [stdout]     |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse.rs:460:79
[INFO] [stdout]     |
[INFO] [stdout] 460 |         let mut mounts = MountIter::new(buf.clone()).map(|m| m.ok().unwrap());;
[INFO] [stdout]     |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/parse.rs:464:79
[INFO] [stdout]     |
[INFO] [stdout] 464 |         let mut mounts = MountIter::new(buf.clone()).map(|m| m.ok().unwrap());;
[INFO] [stdout]     |                                                                               ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |         write!(out, "{}", self.description())
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:48:32
[INFO] [stdout]    |
[INFO] [stdout] 48 |         write!(out, "{}", self.description())
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "69570d99303e552dfc445adcad0ffeff0cbddcf03f77b081637f9e25d3321d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69570d99303e552dfc445adcad0ffeff0cbddcf03f77b081637f9e25d3321d27", kill_on_drop: false }`
[INFO] [stdout] 69570d99303e552dfc445adcad0ffeff0cbddcf03f77b081637f9e25d3321d27