[INFO] fetching crate mktemp-rs 0.2.0...
[INFO] checking mktemp-rs-0.2.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate mktemp-rs 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mktemp-rs 0.2.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mktemp-rs 0.2.0
[INFO] finished tweaking crates.io crate mktemp-rs 0.2.0
[INFO] tweaked toml for crates.io crate mktemp-rs 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8341b6bf2959d4b574592fba4c1a4eddfffa7b0a6597682d2fd71bb431d13e7e
[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" "8341b6bf2959d4b574592fba4c1a4eddfffa7b0a6597682d2fd71bb431d13e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8341b6bf2959d4b574592fba4c1a4eddfffa7b0a6597682d2fd71bb431d13e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8341b6bf2959d4b574592fba4c1a4eddfffa7b0a6597682d2fd71bb431d13e7e", kill_on_drop: false }`
[INFO] [stdout] 8341b6bf2959d4b574592fba4c1a4eddfffa7b0a6597682d2fd71bb431d13e7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ea5b2e4444927cb71e8399640336bf318735077f6f8c9d4c02e17448324de22
[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" "4ea5b2e4444927cb71e8399640336bf318735077f6f8c9d4c02e17448324de22", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking mktemp-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_dir.rs:7:29
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     assert_ok!(td);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_dir.rs:7:29
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     assert_ok!(td);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_dir.rs:7:29
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     assert_ok!(md);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 7  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     assert_ok!(tf);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     assert_ok!(tf);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     assert_ok!(tf);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     assert_ok!(tf);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     assert_ok!(md);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     assert_ok!(res);
[INFO] [stdout]    |     ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     assert_ok!(res);
[INFO] [stdout]    |     ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 60 |     assert_ok!(res);
[INFO] [stdout]    |     ---------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/temp_file.rs:8:29
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     assert_ok!(tf);
[INFO] [stdout]    |     --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 8  |         assert!($e.is_ok(), "{}", $e.unwrap_or_else(|e| panic!("{}", e)));
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "4ea5b2e4444927cb71e8399640336bf318735077f6f8c9d4c02e17448324de22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ea5b2e4444927cb71e8399640336bf318735077f6f8c9d4c02e17448324de22", kill_on_drop: false }`
[INFO] [stdout] 4ea5b2e4444927cb71e8399640336bf318735077f6f8c9d4c02e17448324de22