[INFO] fetching crate ibag 0.3.5...
[INFO] checking ibag-0.3.5 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate ibag 0.3.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ibag 0.3.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ibag 0.3.5
[INFO] tweaked toml for crates.io crate ibag 0.3.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ibag 0.3.5 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ibag 0.3.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01be7edc8f63dbcc36e141fd579c84b7ed62491b89a4028a57cea1459baa0dc4
[INFO] running `Command { std: "docker" "start" "-a" "01be7edc8f63dbcc36e141fd579c84b7ed62491b89a4028a57cea1459baa0dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01be7edc8f63dbcc36e141fd579c84b7ed62491b89a4028a57cea1459baa0dc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01be7edc8f63dbcc36e141fd579c84b7ed62491b89a4028a57cea1459baa0dc4", kill_on_drop: false }`
[INFO] [stdout] 01be7edc8f63dbcc36e141fd579c84b7ed62491b89a4028a57cea1459baa0dc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ae147952bccc94da753f330b64cf7309f8e8ed14af5b3ecdc73e1abfdc5bf30
[INFO] running `Command { std: "docker" "start" "-a" "4ae147952bccc94da753f330b64cf7309f8e8ed14af5b3ecdc73e1abfdc5bf30", kill_on_drop: false }`
[INFO] [stderr]     Checking ibag v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn load(&self) -> RwLockReadGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn load(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&self) -> RwLockWriteGuard<T> {
[INFO] [stdout]    |                  ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/bag.rs:125:20
[INFO] [stdout]     |
[INFO] [stdout] 125 |         assert_eq!(unsafe { *bag.load() }, 42);
[INFO] [stdout]     |                    ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/bag.rs:131:20
[INFO] [stdout]     |
[INFO] [stdout] 131 |         assert_eq!(unsafe { *bag.load() }, 100);
[INFO] [stdout]     |                    ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/bag.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/bag.rs:161:31
[INFO] [stdout]     |
[INFO] [stdout] 161 |                     let val = unsafe { *bag.load() };
[INFO] [stdout]     |                               ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/bag.rs:222:21
[INFO] [stdout]     |
[INFO] [stdout] 222 |                 let r =  b.with(|v| {
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/bag.rs:228:17
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 unsafe {
[INFO] [stdout]     |                 ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `c` is never read
[INFO] [stdout]    --> src/bag.rs:207:16
[INFO] [stdout]     |
[INFO] [stdout] 204 |         struct inner {
[INFO] [stdout]     |                ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 207 |            pub c: String,
[INFO] [stdout]     |                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn load(&self) -> RwLockReadGuard<T> {
[INFO] [stdout]    |                 ^^^^^     ------------------ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn load(&self) -> RwLockReadGuard<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bag.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&self) -> RwLockWriteGuard<T> {
[INFO] [stdout]    |                  ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn write(&self) -> RwLockWriteGuard<'_, T> {
[INFO] [stdout]    |                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "4ae147952bccc94da753f330b64cf7309f8e8ed14af5b3ecdc73e1abfdc5bf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ae147952bccc94da753f330b64cf7309f8e8ed14af5b3ecdc73e1abfdc5bf30", kill_on_drop: false }`
[INFO] [stdout] 4ae147952bccc94da753f330b64cf7309f8e8ed14af5b3ecdc73e1abfdc5bf30