[INFO] fetching crate qube 0.4.0...
[INFO] checking qube-0.4.0 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate qube 0.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate qube 0.4.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qube 0.4.0
[INFO] finished tweaking crates.io crate qube 0.4.0
[INFO] tweaked toml for crates.io crate qube 0.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2da4d437ce3d8062a95e20c312d1de87b2ec5e0067c041baef86a8dddc216a8
[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" "c2da4d437ce3d8062a95e20c312d1de87b2ec5e0067c041baef86a8dddc216a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2da4d437ce3d8062a95e20c312d1de87b2ec5e0067c041baef86a8dddc216a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2da4d437ce3d8062a95e20c312d1de87b2ec5e0067c041baef86a8dddc216a8", kill_on_drop: false }`
[INFO] [stdout] c2da4d437ce3d8062a95e20c312d1de87b2ec5e0067c041baef86a8dddc216a8
[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" "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" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c915e746b4070e84a75781053de56a0ee83552e5a9ca0f4203adfb2921228df
[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" "4c915e746b4070e84a75781053de56a0ee83552e5a9ca0f4203adfb2921228df", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/clients/low_level.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Client`, `Decoder`
[INFO] [stdout]   --> src/clients/low_level.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest::async::{Client, Decoder};
[INFO] [stdout]    |                      ^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]   --> src/clients/low_level.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::io::{self, Cursor, Write};
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/config.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         env::home_dir()
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/clients/low_level.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Client`, `Decoder`
[INFO] [stdout]   --> src/clients/low_level.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 19 | use reqwest::async::{Client, Decoder};
[INFO] [stdout]    |                      ^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Cursor`
[INFO] [stdout]   --> src/clients/low_level.rs:20:21
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::io::{self, Cursor, Write};
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]    --> src/config.rs:217:9
[INFO] [stdout]     |
[INFO] [stdout] 217 |         env::home_dir()
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stdout]    --> src/clients/low_level.rs:349:90
[INFO] [stdout]     |
[INFO] [stdout] 349 |                         let data = format!("{}{}\n", resname, from_utf8(&chunk).unwrap().trim_right());
[INFO] [stdout]     |                                                                                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_right': superseded by `trim_end`
[INFO] [stdout]    --> src/clients/low_level.rs:349:90
[INFO] [stdout]     |
[INFO] [stdout] 349 |                         let data = format!("{}{}\n", resname, from_utf8(&chunk).unwrap().trim_right());
[INFO] [stdout]     |                                                                                          ^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     foreign_links {
[INFO] [stdout] 5  | |         Io(::std::io::Error);
[INFO] [stdout] 6  | |         Json(::serde_json::Error);
[INFO] [stdout] ...  |
[INFO] [stdout] 10 | |     }
[INFO] [stdout] 11 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut headers = header::HeaderMap::new();
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut headers_async = header::HeaderMap::new();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut client = reqwest::Client::builder();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut async_client = reqwest::async::Client::builder();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut client = if let Some(ca_cert) = cluster.ca_cert() {
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut async_client = if let Some(ca_cert) = cluster.ca_cert() {
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:338:29
[INFO] [stdout]     |
[INFO] [stdout] 338 |             .and_then(move |mut res| {
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut req = self.auth_async(self.async_client.get(url));
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |         let mut response = req
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |         let mut req = self.auth(self.client.get(url));
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |         let mut headers = header::HeaderMap::new();
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut headers_async = header::HeaderMap::new();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let mut client = reqwest::Client::builder();
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut async_client = reqwest::async::Client::builder();
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let mut client = if let Some(ca_cert) = cluster.ca_cert() {
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/clients/low_level.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |         let mut async_client = if let Some(ca_cert) = cluster.ca_cert() {
[INFO] [stdout]    |             ----^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:338:29
[INFO] [stdout]     |
[INFO] [stdout] 338 |             .and_then(move |mut res| {
[INFO] [stdout]     |                             ----^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:332:13
[INFO] [stdout]     |
[INFO] [stdout] 332 |         let mut req = self.auth_async(self.async_client.get(url));
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:336:13
[INFO] [stdout]     |
[INFO] [stdout] 336 |         let mut response = req
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/clients/low_level.rs:364:13
[INFO] [stdout]     |
[INFO] [stdout] 364 |         let mut req = self.auth(self.client.get(url));
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "4c915e746b4070e84a75781053de56a0ee83552e5a9ca0f4203adfb2921228df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c915e746b4070e84a75781053de56a0ee83552e5a9ca0f4203adfb2921228df", kill_on_drop: false }`
[INFO] [stdout] 4c915e746b4070e84a75781053de56a0ee83552e5a9ca0f4203adfb2921228df
