[INFO] fetching crate path_abs 0.5.1...
[INFO] checking path_abs-0.5.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate path_abs 0.5.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate path_abs 0.5.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate path_abs 0.5.1
[INFO] finished tweaking crates.io crate path_abs 0.5.1
[INFO] tweaked toml for crates.io crate path_abs 0.5.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages
[INFO] [stderr]       Adding aho-corasick v0.6.10 (latest: v1.1.3)
[INFO] [stderr]       Adding ansi_term v0.9.0 (latest: v0.12.1)
[INFO] [stderr]       Adding difference v1.0.0 (latest: v2.0.0)
[INFO] [stderr]       Adding pretty_assertions v0.4.1 (latest: v1.4.0)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding regex v0.2.11 (latest: v1.10.4)
[INFO] [stderr]       Adding regex-syntax v0.5.6 (latest: v0.8.3)
[INFO] [stderr]       Adding remove_dir_all v0.5.3 (latest: v0.8.2)
[INFO] [stderr]       Adding thread_local v0.3.6 (latest: v1.1.8)
[INFO] [stderr]       Adding ucd-util v0.1.10 (latest: v0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty_assertions v0.4.1
[INFO] [stderr]   Downloaded stfu8 v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 177f49d8e3b540d3840d5202af3ce6eb4461401998c49e049205d581ba1a8e41
[INFO] running `Command { std: "docker" "start" "-a" "177f49d8e3b540d3840d5202af3ce6eb4461401998c49e049205d581ba1a8e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "177f49d8e3b540d3840d5202af3ce6eb4461401998c49e049205d581ba1a8e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177f49d8e3b540d3840d5202af3ce6eb4461401998c49e049205d581ba1a8e41", kill_on_drop: false }`
[INFO] [stdout] 177f49d8e3b540d3840d5202af3ce6eb4461401998c49e049205d581ba1a8e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1875182fe932de286da924c8d1e05e430ea042e51cf8a4364d297b96d8e8756c
[INFO] running `Command { std: "docker" "start" "-a" "1875182fe932de286da924c8d1e05e430ea042e51cf8a4364d297b96d8e8756c", kill_on_drop: false }`
[INFO] [stderr]     Checking stfu8 v0.2.7
[INFO] [stderr]     Checking std_prelude v0.2.12
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking difference v1.0.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking pretty_assertions v0.4.1
[INFO] [stderr]     Checking path_abs v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/abs.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:8:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use serde::{self, Deserialize, Deserializer, Serialize, Serializer};
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:210:1
[INFO] [stdout]     |
[INFO] [stdout] 210 | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::string::ToString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `stfu8` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:12:5
[INFO] [stdout]     |
[INFO] [stdout] 12  | use stfu8;
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:216:1
[INFO] [stdout]     |
[INFO] [stdout] 216 | extern crate stfu8;
[INFO] [stdout]     | ------------------- the item `stfu8` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `OsString` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std_prelude::*;
[INFO] [stdout]    |     -------------- the item `OsString` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 16 | use std::ffi::{OsStr, OsString};
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/abs.rs:104:10
[INFO] [stdout]     |
[INFO] [stdout] 104 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:8:13
[INFO] [stdout]     |
[INFO] [stdout] 8   | use serde::{self, Deserialize, Deserializer, Serialize, Serializer};
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:210:1
[INFO] [stdout]     |
[INFO] [stdout] 210 | extern crate serde;
[INFO] [stdout]     | ------------------- the item `serde` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::string::ToString;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `stfu8` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:12:5
[INFO] [stdout]     |
[INFO] [stdout] 12  | use stfu8;
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:216:1
[INFO] [stdout]     |
[INFO] [stdout] 216 | extern crate stfu8;
[INFO] [stdout]     | ------------------- the item `stfu8` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `OsString` is imported redundantly
[INFO] [stdout]   --> src/ser.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std_prelude::*;
[INFO] [stdout]    |     -------------- the item `OsString` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 16 | use std::ffi::{OsStr, OsString};
[INFO] [stdout]    |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathDir` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:254:24
[INFO] [stdout]     |
[INFO] [stdout] 254 |     use super::super::{PathDir, PathFile, PathInfo, PathMut, PathOps, PathType};
[INFO] [stdout]     |                        ^^^^^^^
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathDir` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathFile` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:254:33
[INFO] [stdout]     |
[INFO] [stdout] 254 |     use super::super::{PathDir, PathFile, PathInfo, PathMut, PathOps, PathType};
[INFO] [stdout]     |                                 ^^^^^^^^
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathFile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathMut` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:254:53
[INFO] [stdout]     |
[INFO] [stdout] 254 |     use super::super::{PathDir, PathFile, PathInfo, PathMut, PathOps, PathType};
[INFO] [stdout]     |                                                     ^^^^^^^
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathMut` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathOps` is imported redundantly
[INFO] [stdout]    --> src/ser.rs:254:62
[INFO] [stdout]     |
[INFO] [stdout] 254 |     use super::super::{PathDir, PathFile, PathInfo, PathMut, PathOps, PathType};
[INFO] [stdout]     |                                                              ^^^^^^^
[INFO] [stdout] 255 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathOps` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `regex` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:973:17
[INFO] [stdout]     |
[INFO] [stdout] 973 |     use regex::{self, Regex};
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 976 |     use super::*;
[INFO] [stdout]     |         -------- the item `regex` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 |         self.io_err.description()
[INFO] [stdout]     |                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 |         self.io_err.description()
[INFO] [stdout]     |                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathInfo` is imported redundantly
[INFO] [stdout]    --> tests/absolute_helpers/mod.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use super::*;
[INFO] [stdout]     |         -------- the item `PathInfo` is already imported here
[INFO] [stdout] 108 |     use path_abs::PathInfo;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempdir` is imported redundantly
[INFO] [stdout]   --> tests/test_absolute.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tempdir;
[INFO] [stdout]    |     ^^^^^^^ the item `tempdir` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ser_from_str`
[INFO] [stdout]    --> src/ser.rs:279:13
[INFO] [stdout]     |
[INFO] [stdout] 279 |         let ser_from_str = PathSer::from("example");
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ser_from_str`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ser_from_tmp_abs`
[INFO] [stdout]    --> src/ser.rs:280:13
[INFO] [stdout]     |
[INFO] [stdout] 280 |         let ser_from_tmp_abs = PathSer::from(tmp_abs.as_path());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ser_from_tmp_abs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "1875182fe932de286da924c8d1e05e430ea042e51cf8a4364d297b96d8e8756c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1875182fe932de286da924c8d1e05e430ea042e51cf8a4364d297b96d8e8756c", kill_on_drop: false }`
[INFO] [stdout] 1875182fe932de286da924c8d1e05e430ea042e51cf8a4364d297b96d8e8756c